Part III : Explaining metaphysics
(Part I - Part II - - Part IV)
Abstract: The main metaphysics
issues such as the mind-matter duality, and the foundation of
morality, will be adressed here as a genuine field for
reason and science, thus dismissing the widespread belief that
this would be impossible. (fate, and the explanation and
refutation of religious faith, especially Christian faith, will
be discussed in Part IV)
You may start with these notes on
metamathematics showing
that the mind is superior to any formal system, and therefore to
any physical system.
Then, below are expressed some metaphysical concepts on the
non-material nature of the mind and how it articulates with that
of the physical universe.
Then, the
introduction to quantum physics, previously in this page, was
moved there.
The nature of the mind
A spiritual text presented the following idea:
"There is the part of you that
thinks and the part that hears the thoughts. The thinking part is
your mind; the part that hears the thoughts is your spiritual-self".
This is an interesting idea, because of the similarity with the
structure of metamathematics that we presented earlier. This
suggests to make a parallel between both, and provide an
understanding of the mind as inspired from this analogy - even
though they are fundamentally of different nature.
The mind is analogous with the world of objects, while the
spirit is analogous to the formulas that are making sense by
taking values in the world of objects. The spirit is what is moving
the mind at the present time. It can only do it based on the current
structure of the mind which is closely interacting with in the brain
and thus receives the effects from the senses; and does it in a way
that, usually, could not be exactly predicted until it actually
happens (in analogy with the truth undefinability theorem). Not even
God can reliably predict our exact behavior in advance, because...
our future decisions do not exist yet.
But this action of our spirit at every given time, then
adds up itself as a part of the mind of the next time. Thus the mind
progressively extends in time.
In other words, we have a succession, along time, of the states of
the mind: let us denote them as a succession M0,
M1, M2... every fraction of a second (although
there may be no truth of how much time are the intervals,
because... this is a fuzzy description); and corresponding states of
the spirit, S0, S1, S2...
Thus S0 is the state of the spirit as it observes and
feels M0. Then S0 adds up to M0
together with external sensations to form M1, and M1
is observed by the spirit, providing the feeling (move) S1,
and so on.
But, considering that the state of the spirit at every time is
continuously added up to the mind at the next times, we can as well
say that the spirit and the mind are not 2 different things, but 2
different aspects of the same thing. This mind-spirit, thus, is just
what we personnally are (not a physical object). In such a view, we
could say there is no essential mystery of any deeper self
in us that we may have forgotten, because we do continuously
perceive all what we deeply are anyway.
(Of course, our self-understanding remains far from perfect and
able of progression, just like higher levels in the hierarchy of
sets brings more information on natural numbers as formulable in the
language of arithmetics: namely, the information that set theories
of intermediate levels had no contradiction). Well, I admit this
argument is not clear, and remains debatable. However, why care ?
What matters is less what we deeply are, than how we do behave in
practice. Any assumption on the behavior of the mind has to be
tested against observation. Further on we shall develop a number of
observations on real situations, that can be made independently of
any assumption on the nature of the mind. And it will turn out that,
well, this model we just presented fits not bad.
To say it in other words: we can understand the spirit as the life
of the mind, that drives the mind to continuously transcend itself,
which is the way it normally grows and evolves. Our mind is
currently embedded in our brain and works in close interaction with
the brain. This whole mind-spirit, or living mind, is immaterial and
eternal, and leaves the body altogether when the body dies.
The "eternity" of the mind can be explained as follows.
The existence of the mind at every given time is based on the fact
it will turn out to be perceived in the past of a later time, just
like every mathematical object in a mathematical world, owes
its full existence to the
presence and meaning of a formula
whose meaning involves its existence, and that comes after
it.
Indeed, the NDE testimonies do not speak about the end of all
thought outside the body, but about a new freedom and way of
thinking, freed from the brain.
This immaterial character of the mind, transcending any mathematical
system and able to find deep intuitions about infinity, does not
however mean any effective possession of the infinity. Only
intuitions somehow expressible in finite, limited terms, are
normally accessible to us in this life. For example I'd be surprised
if anyone could reliably guess the trillionth decimal of pi, while
some future supercomputers might do it.
Of course, rational thinking is but one function (style of work) of
the mind among other functions, which include other ways of thinking
(imagination, artistic sense, empathy...), sensations, feelings,
morality sense, free choice and so on.
Types of existence
Now let's directly come to the "deepest" questions.
We said (in Part II), science is not essentialist, which means that
it does not systematically require to refer to any know ultimate
cause or law, not to specify the "deep nature" (essences) of its
objects, for developing its knowledge, as such essences are usually
irrelevant. It can be satisfied with raw observations first, then
successively more accurate approximative models involving
intermediate levels of reality, rather than any ultimate nature of
things. Because its main work is about complexity and the
exploration of the many ways how things may interact with each
other.
Nevertheless, rational thinking is not afraid of essences either,
whenever this may be relevant, as it could already successfully
explore relatively deeper and deeper essences of physical systems
through chains of successively more accurate theories.
Now the point of metaphysics is to discuss the essences of
everything; there is no reason why logical positivism could not be
applied to it too.
Historically, logical positivists happened to claim that
metaphysics is empty, and should be rejected from science. However,
this may be understood as a denunciation of the irrational
way in which metaphysics has been traditionally handled by
philosophers.
Indeed it can be amazing how debates went on and on so long between
atheists, deists, religious apologists and philosophers, and it all
remained a so miserable fuss of misunderstanding lacking a clear
definition of the most basic concepts and the most basic claims
about which agreements and disagreements can take place. For
example, their debates for or against the existence of God, lacked a
clear definition for "God" or for "existence of God". They even
seemed to miss the fact that the question "does God exist" hardly
makes any sense, as God is not supposed to be an object like other
objects, so that the very qualification of "existence" should
not apply to God in the same way as it could apply to objects -
another understanding of the very concept of existence would need to
designed for it.
But if approached more rationally, metaphysics can indeed become a
meaningful scientific subject.
Here is a proposition how to do it.
First, let us note that the words "existence" and "reality" are
roughly synonymous, and when saying that "something exists", the
thing and its existence cannot be separated either : an
existence can only be considered as applying to something, and there
is no thing without existence.
Now, if things and existence are one and the same, what is that ?
The nature of material objects in our universe has been largely
understood by physicists through quite amazing mathematical
theories, so that the "unreasonable effectiveness of mathematics"
for physics has been celebrated. So, even if not everything is
mathematical, the world of mathematics deserves serious
consideration here.
The field of mathematics comes with its own objects, and its
existence claims on these objects.
Some philosophers debated whether mathematical objects are real, and
whether mathematics is an exploration of a reality, or a
construction of the mind or anything else, but opposite views added
up and did not end to an official agreement (just as philosophers
don't resolve any question anyway).
But usually for mathematicans, the debate is rather empty. When they
study mathematics, they hold the universe of objects of their study
as real, and it works as such. Well not all is clear, but the
undeterminacy fuss does not have the same status as what
philosophers are discussing. The foundation of mathematics has been
studied as a branch of mathematics, and could resolve the main
"philosophical debates" on the nature of mathematics, from a
mathematical viewpoint.
Some philosophers mistakenly assumed a prior (though undefined)
fixed concept of "existence" or "reality", before wondering
whether it applies to mathematical objects (universes, truths...).
But as the concept of existence is inseparable from its contents, so
there is no preexisting standard concept of "existence" separated
from mathematics, to be compared with mathematical objects. In
other words, no a priori sense can be made of the question "Are
mathematical objects real ?" for wondering what the answer is.
Instead, just as mathematical objects have their own nature, so they
have their own type of existence, that should not be confused with
other, more familiar types of existences. In other words, there
are several separate concepts (types) of "existence" or "reality",
each to come up after the respective types (natures) of the objects
they apply to (even if connections can be found between these
types). Namely, these may be classified into mathematical existence,
physical existence and concious existence (though this
classification is approximative and will have to be refined later).
Note that the physical existence is something relative: specified
objects are only present at a given time and place.
Some characters of mathematical existence
Mathematical existence has its margin of relativity too. An
illimited range of theories can be considered, including "theories
of all mathematics", with each their range of possible universes
where they can be interpreted. A claim of existence of an object is
relative to a theory and a universe of objects in which this theory
is interpreted.
So, the limits of mathematical existence are fuzzy, but the
fuzziness of these limits remain internal to the field mathematical
existence, and completely unrelated to (unaffected by)
any other type of existence.
More precisely, the fuziness (relativity) of the mathematical
existence, comes from the infiniteness of the systems that are
considered to exist or not. On the other hand, the mathematical
existence of finite systems (of specified limited size) enjoys an
objective character, independent of any decent choice of a theory of
mathematics and its interpretation.
Despite its relativity, the mathematical existence of infinite
systems cannot be dismissed because it is somehow guaranteed by Gödel's
completeness theorem. This theorem is at least as essential to
the foundations of mathematics as the more
famous incompleteness theorem. In fact, the incompleteness
theorem only owes its higher popularity to its much more
pleasant character in the eyes
of the irrationalist propagandists who
influence public opinion, as well as the biased sensitivity of
the public itself who hates mathematics and is so fond of any
excuse to praise stupidy and irrationality over reason.
The completeness theorem roughly says that for any theory without
contradition, there exists a mathematical universe described by this
theory.
At first sight, it may seem to contradict the incompleteness
theorem; however there is no contradiction between them once
understood more precisely, in ways that won't be detailed here.
So, it provides for the real existence of infinite systems (as many
theories require their universe of objects to be infinite). Of
course, as no theorem can provide for infinities out of no infinity,
the completeness theorem requires an assumption of infinity in order
to apply.
But the required infinity assumption is rather weak: it only needs
the infinite list of all finite systems (to fix the idea, we can
say: the infinite set of all natural numbers). But this assumption
is already required to make sense of the premise of the theorem: a
contradiction must be a finite system of symbols. Thus, the
concept of a "theory without contradiction" involves the
infinity of searches for any finite contradition that might be
produced by the theory. It would be hard, indeed, to grant existence
to every finite system but not to the whole infinite set they form
(unless we might mean that every natural number exists inside
reality, but this reality of all natural numbers would not itself
"exist"...).
And this mathematical existence of infinite systems, while hardly
deniable, keeps a margin of relativity in a way too complex to
be summed up here (we already gave hints about this...).
However, this relativity margin does matter for us, as we are only
concerned in practice with finite systems, whose mathematical
existence is objective. Indeed, as will be explained later, the
currently known laws of quantum physics are expressed in
mathematical terms that somehow only depend on finite systems (and
the successive approximations they give, like the computation of a
real number, in a way we shall specify later), and thus inherite
their objectivity. (And our conciousness has no full access to
infinity either.)
Other types of existence
Now the question is: is there any other type of existence, that
is, another type of object, outside the mathematical ones ? We
mentioned about the physical and the concious existences. Do they
differ from mathematical existence ?
Such a difference is hardly deniable. Could anyone mistake oneself
with a mathematical object (in other words, one's own existence with
a mathematical existence) ?
The status of physical existence is much more subtle, because unlike
concious being, physical objects are not aware of their own
existence. How to make sense of such an existence, and be sure that
the physical type of existence "really exists" ? In fact, we can't.
Instead, we shall explain that only the concious and mathematical
existences are primitive types of existence, while the physical
existence emerges as a combination (or intersection) of both.
But first of all, we need to examine (and refute) another view,
widespread among atheists, according to which conciousness emerges
out of physical reality, so that concious existence would be
mere fruit or particular case of physical existence.
Such a view would first require some primitive type of physical
existence, not reducible to mathematical existence. Or would it ?
Just imagine the idea of a universe where everything can be
mathematically described, as well as its evolution laws. No matter
whether "it exists" or not in a familiar sense, it does exist anyway
in a mathematical sense, in the form of its encoding as a very big
number (a string of information expressing the detailed
configuration of all its parts). No matter how astronomically big
this number is, it mathematically exists. Thus, so does
mathematically "exist" the universe it encodes.
The problem is, this type of existence is much too large. With it, a
universe in which an exact copy of myself would be walking on Mars,
would be existing as well (since an encoding number for it could be
defined and thus give it an existence). Morality would make no
sense, as every possible state of happiness or suffering of every
possible living being, would "exist" just the same, so that no
initiative can help to make one of these states more "real"
than another state. By the way, in such conditions, there would be
no point connect someone's existence to a specific universe.
Instead, each person would have copies of oneself inside
astronomical numbers of universes. It would make no sense to ask
"What is there on Mars" because your present existence (as a
mathematical object) would be crossing multitudes of
existing universes where the Mars planet would be configured
differently.
There would be no problem for such a strange view of existence to be
"mathematically conceivable". However, we also easily notice that
some deep intimate convictions in ourselves, a feeling of our own
existence, rejects that.
There has not be something more to our existence, than a
mathematical one. But what can this be ?
To a large extent, physical objects have a mathematical form. Can
different types of existence be applicable to the same objects ?
More precisely, can mathematical objects be given another type of
existence than the mathematical one ?
Let's imagine this. Whatever "the cause" may be, consider that,
among the too numerous universes that mathematically exist,
only one or a relatively small number of them, would have the
priviledge of another sort of "real existence", that others
wouldn't. But... what would be making the difference between a
universe that exists, and a universe that does not exist ?
Imagine this difference to come in a sort of arbitrary way,
such as a magic gift from elsewhere. What might this be ? Imagine
this to be a purely mathematical data. It could just be given by a
formal list of existing universes (or contents of this
universe) written in some divine book. Yes, but... such a divine
book would be only one among an astronomical number of books that
mathematically "exist" as well. Such a conventional data cannot
bring any effective and more interesting type of existence than the
mathematical one it had in the first place.
Now, materialists usually assume this reality to be some
physical one, that first makes the universe real disregarding the
presence of conciousness inside. Then, they assume that
consciousness may eventually appear in such a universe as
an emergent phenomenon.
The problem is, a "physical existence" attributed to the universe,
may be attributed to its most elementary particles, in the
fundamental interaction processes between them, or to the
universe this forms as a whole, but would have no special
consideration towards any specific type of emerging phenomenon
there, than to any other type of emerging phenomenon. No particular
type of emerging phenomenon could have any special existence status.
Instead, all emerging phenomena would be mere mathematical
properties of the processes occuring there.
Even if some sort of physical
existence is basically attributed to the universe, no structures
emerging from mathematically predictable processes (that may include randomness) taking place there, can have any
other existence than a mathematical one.
This is because the "physical existence" is only attributed to
fundamental aspects of the universe, not to any emerging properties
from them.
From the same mathematical laws, the same emerging processes occur
in many physically inexistent universes as well. So, just imagine
(or mathematically consider the existence of) a human being that
only exists mathematically inside physically non-existing
universes. Being determined by the same mathematical laws (at least
in very good approximation), he would still strongly believe in his
own existence just as we do, wouldn't he ? Still, this belief would
be false. But, as our own belief in our real existence is an effect
of our behavior that just follows the same laws, and this belief
turns out to be mistaken "most of the time" (in all non-existing
universes), what the hell could ensure this belief to be more true
in our case ?
Does the question of the physical or concious existence, even
have any meaning beyond mathematical existence ? Or should this very
issue that there may be another type of existence than the
mathematical one, be dismissed as empty, "not even wrong" ? If
not, why ?
So, even though this argument may be considered subjective and
not absolutely rigorouslogical argument, I cannot consider
conciousness as a process emerging from complex phenomena following
any mathematical laws, that would inherit its existence (and
the "feeling of existence") from a physical existence.
This argument moreover confirms the first argument we presented in
Part II against a mathematical determination of the mind.
Now that concious existence is accepted as a fundamental type of
existence, let us examine some of its main properties.
The features of concious existence
Let us recall the main features of concious existence, and add a few
complements.
The objects of this existence (the "concious objects") are more
precisely concious events: perceptions, ideas, choices, feelings...
No two concious events can be identical (in other words, none ever
identlcally occurs more than once).
This type of existence cannot be dissociated from the concept of
time.
Time is an order relationship (or preorder) between all
concious events. In other words, this is a concept that specifies
for any two concious events A and B, whether or not "A happens
before B", and for any 3 events A, B and C, if A happens before
B and B before C then A happens before C.
This relationship can also equivalently be called "B happens after
A", or "A influences B" or "A is in the memory of B", "A exists for
B".
In fact, all this should rather be talked about in the past:
"happened". because every concious event only exists from the
viewpoint of later events, and we cannot talk about events that do
not exist yet.
Moreover, no event can happen both before and after another (unless
they are simultaneous, which may happen of course if we have several
perceptions together).
The existence of every concious event is half relative, half
absolute. First it is relative, as it does not exist yet as long as
it did not happen. But after it happened, its existence will remain
fixed forever, and accumulates "in memory". Indeed every event has
an infinite future, that does not exist yet but will come
progressively to existence in its time. To say it otherwise, the
future is not specified (we don't know it) before it happened. Some
information about it can be more or less predictable, but
predictions can't be perfectly exact.
The contents of memory can be hard to reliably check, and may
eventually seem to be lost. This impression can be strong. Even in
many cases, memory contents may seem to be completely lost
(especially of dreams, or of past lives under an assumption of
reincarnation). This means that the behaviors seem to not depend on
these past events, and can be understood separately from them to an
excellent approximation. However, this strong approximation is "only
an appearance". Many NDE testimonies confirm that all the past
contents of life remain "somewhere" in memory anyway, no matter
if we seem to have forgotten them.
Moreover, here is another argument to support the idea that, though
somehow hidden, the memory of the concious past keeps existing
somewhere intact. Imagine it was not, and that, instead, this memory
only consists of something like a computer memory that can be
arbitrarily written or modified. This would especially the case in a
materialist view where memory would merely consist in configurations
of brain cells.
In this case, nothing would prevent external influences to rewrite
or make up this memory completely. Imagine this: what if you did not
really live the life you think you lived but all your body and
brain with all its memory has just been built up by some
superintelligent aliens 5 minutes ago. Would that be that possible ?
If materialism was true, or if in any other way it was possible to
arbitrarily modify or make up concious memory, then you would have
no reliable evidence that anything you remember ever really happened
to you.
Instead, something deep in your mind leads you to hold as an
evidence that your memory can't all be faked. Then, the act of
giving this intuition the status of an effective evidence as it
naturally suggests, requires to admit that memory is of a sort
of unalterable nature. Namely, that this memory contains the
effective evidence, or we can say, the reality itself, of the
remembered events.
The fact that every event is affected by the whole of its past,
confirms (or contributes) that no two events can be identical (as
they don't have the same past).
All these properties of concious existence appear very different
from those of ordinary finite mathematical objects (but they do
have strong similarities with those of infinite mathematical systems
as viewed in high level works on the foundations of
mathematics, and possibly also with computation theory).
The Turing test
It has been long said that metaphysics is not scientific because it
is unfalsifiable.
But here is a claim expressing a good deal of metaphysics, that is
clearly falsifiable, as is precisely a specification of the
experiment what would falsify it :
Artificial
Intelligence can never pass the Turing test
The idea of the Turing
test, is to investigate the question "Can machines think like
humans". This is done by trying to develop software aimed to imitate
human thought. The quality of this imitation is assessed by human
judges taking through computers (instant messaging) with the
candidate (human or program trying to imitate human replies),
and trying to guess if the replies come from a human or a program.
We would say that the program passes the test if it can fool the
judge into believing it is a human.
It is so falsifiable that a number of researchers are already
working hard trying to refute it, with a deep conviction that they
will succeed someday.
It is reported that some judges have already been fooled, mistaking
computers for humans. But this is because the test has not been hard
enough: too short exchange of messages, lack of imagination by
judges to provide meaningful challenges. So, the claim here, is that
under harder conditions of sufficiently long and
imaginative conversations (for the length, say for example, 2
hours of phone conversation), the chances for machines to be
mistaken as humans will remain unsignificant.
If you want other falsifiable claims expressing the same
metaphysical position in other ways, here are some:
- There will be no technological
singularity, but a more regular progression over time
- There will always be an important proportion of
intelligent jobs for humans (computers can't overcompete humans
for many aspects of intelligence such as imagination and
initiatives). More precisely, intelligent and imaginative jobs
will always represent an important monetary fraction
of jobs ( = no matter how few people can or want to do them,
they will keep their value for the economy anyway) in comparison
with the repetitive ones; this reflecting the fact
that artificial intelligence, however useful, can never
compete with much of them in comparison with its ability to
replace unintelligent works.
The claim that AI cannot pass the Turing test, is related to
the deep natural intuition which makes solipsism unsustainable.
Namely, if it was possible to simulate human behavior by a program
in a convincing way, then a person in an environment (real or
virtual) showing other people's behaviors produced by this
program, would have the same impresion as in the normal environment
showing the real behaviors of other humans. In this case it
would not be possible for someone to tell whether visible people,
have anything more than a mathematical existence (as objects of
computation of this program). This would make solipsism sustainable.
But if computers can't imitate humans, then the human character
of other's behavior is what provides the intuitive evidence of their
reality as peer conciousnesses.
Well, is it really a proof ? Such a kind of proof may sound strange.
After all, it's nothing else than a set of information. How can a
mere set of information, which is a mathematical object, prove
anything about a non-mathematical existence ? It's because the
chances to produce this information without concious means were
unsignificant. Mere mathematical means would have almost surely
produced irrealistic results. And, as the observer is concious and
there can't be astronomical numbers of observers and tries at the
disposal of the experiment, it's rather unlikely to manage
producing any case of delusional impression of existence of a
concious being, out of mere random or other mathematical tricks.
Let us go a little further. Admitting that the precise behavior of
appearing people (in interaction with oneself) suffices to bring the
evidence of their existence, as this behavior could not have
been imagined by a nonconcious being. What about the possibility for
a concious being to invent this behavior instead ? Indeed it could
do better... at first sight.
But after a much longer interaction, the realism of this imitation
would fade out. To remain fully realistic in the long run (even in
the mere sense of how to fool one human observer into this
impression), the author of this imitation would need to be God, and
to imagine these characters so precisely, that this imagination
would give these characters a real existence inside his imagination,
feeling himself their feelings.
These remarks that a full knowledge of oneself (or one soul) is
equivalent to a union with God, may seem to give credit to some
religious and spiritual teachings promoting introspection as a
way to God.
However plausible this idea may sound at first sight, we should
remain very cautious, and not believe anything without proof.
The problem is, the theoretical principle that a higher form of
conciousness (encompassing many individual conciousnesses into a
whole) may exist, does not give any clues how to reach it, ifever
any way to it really exists at our disposal. Our earthly cognitive
abilities may not suffice to properly guess what such a way
should look like. Any claims of such a thing must be taken with
great care, and serious verifications.
Fortunately, we have more than mere guess to study the question.
If there is a way to any form of spiritual enlightenment, and
if it is not too hard to make it, some people may have reached it
already. But then, they should be able to bring verifiable knowledge
out of this experience.
Therefore, the scientific method is fully relevant to check the
validity of any such claims.
But before entering this question, let us explain the nature of the
physical universe first.
The nature of the physical universe
Let's come now to examine the nature of the physical universe.
As we said, fundamental physics had great successes in the 20th
century. While there are still some very difficult problems to put
the known laws together into a fully consistent mathematical whole
that would provide details on some of the most
extreme phenomena, the laws underlying ordinary matter are
now already quite well-established. Namely, the physical aspects
of biological processes, starting from chemistry, and where the
familiar cases of mind-matter interactions do occur, are fully
expressed by quantum theory.
This theory already explains how mind-matter interaction can take
place, and what status it gives to physical reality, as a
composite or intermediate sort of reality between the concious and
mathematical ones.
Unfortunately, many physicists with a materialist philosophical
positions failed to get the message. While trying to understand it
in a materialistic manner look for different
interpretations of this theory, by none was satisfying.
Consequently, many considered quantum theory as deeply paradoxical,
or even incomprehensible.
The situation has been described by physicist John
Baez as follows:
"
How
should
we think about quantum mechanics? For example, what is
meant by a "measurement" in quantum mechanics? Does
"wavefunction collapse" actually happen as a physical
process? If so, how, and under what conditions? If
not, what happens instead?
Many physicists think these
issues are settled, at least for most practical
purposes. However, some still think the last word has
not been heard. Asking about this topic in a roomful of
physicists is the best way to start an argument, unless they
all say "Oh no, not
that again!".
There are many books to read on this subject, but most of them
disagree."
On the other hand, the interpretation
of quantum theory expressing the mind/body dualism (see also there)
was already put forward by some of the founders of quantum theory
(who are also physics Nobel Prize laureates):
"In
many philosophies, the conscious mind is seen as a separate
entity, existing in a realm not described by physical law. Some
people claim that this idea gains support from the description
of the physical world provided by quantum mechanics. Parallels
between quantum mechanics and mind/body dualism were first drawn
by the founders of quantum mechanics including Erwin
Schrödinger, Werner Heisenberg, Wolfgang Pauli, Niels Bohr,
and Eugene Wigner. (...)
Quantum mechanics made some
dualist ideas about the mind/body problem acceptable again
within mainstream science."
So, why has this interpretation become progressively so unpopular
among physicists since the discovery of quantum physics ? One of the
main reason seems to be that it has been hijacked by a number of
popular authors (Quantum mysticism, New Age and New Thought
movements) who mixed it with a lot of nonsense (some
crackpot theories and irrationalist ideologies), while they
don't even understand quantum theory themselves, in order to give
their propaganda an illusion of scientific credibility.
The situation was made even messier by the presence of some more or
less famous genuine physicists (Brian Josephson, Fritjof Capra,
Casey Blood...) who followed the same path, of promoting this
interpretation of quantum theory (intervention of conciousness)
while taking other supposedly related positions that may
be dismissed as closer to crackpot (any bad understanding of current
physics) or irrationalist attitudes (any religious views filled with
nonsense) than to science. Such physicists telling nonsense
about science are mistaken as serious scientific references by some
large spiritualist communities (organization or public) that do not
have themselves the scientific skills to detect the flaws. By the
popularity they developed from this uncritical public eager to
praise anyone who looks like a physist and is ready to affirm the
public spiritualist orientations against a supposedly stubborn
dominating class of close-minded materialist physicists, they became
the "reference" for the mind/matter dualist interpretations of
quantum physics
Other scientists came to be fed up with such nonsense even when
coming from peer physicists. Thus, when trying to defend science and
reason, they had to oppose these caricatural and
indefensible versions of this interpretation of quantum theory
and/or its supposedly associated deviations and ideologies,
thus driving them to reject the original concept altogether.
So, I perfectly agree with the objection of many physicists against
many spiritual writers'attitude who misuse quantum theory to support
some spiritual claims while it in fact doesn't, and while no proper
understanding of quantum physics is included in the argument. Thus
the development of a vicious circle of antagonism, paranoia and
mutual discredit between both sides.
Thus, in order to keep proper rationality standards, the below
presentation of the relations between quantum theory and
metaphysical concepts of mind/matter duality, will seek
clarity, precision and conceptual minimality (abstaining from any
unnecessary speculative claim), and include a simplified but
mathematically accurate presentation of quantum physics, which will
this way appear as less paradoxical than its reputation says.
To say very roughly, the nature of the physical existence (the
deep nature of physical entities) can be defined in this way:
The physical universe is the
trajectory of a visit of conciousness inside the mathematical
universe.
This explains how the physical world combines a mathematical
description with a non-mathematical type of existence. Conciousness
visiting the mathematical world, makes a choice of which path
it will visit. But this way of choosing a specific path (physical
universe) does not affect the path itself (it does not make up any
intrinsic difference to universes that "exist" as compared
to those who don't). This "choice process" and what the physical
universe consists in, is but a behavior conciousness, a matter
of how concious perceptions evolve.
However, while this may seem to agree with some spiritual
teachings at a fundamental level, caution should be kept on what
practical consequences may result, as many fuzzy reasonings made by
spiritual authors, often lead to nonsense far from reality. The
fact that reality is ultimately made of thoughts, does not imply
that thoughts can control reality just by the force of
fancy, that all problems can be resolved just by denying their
existence and multiplying pious dreams and good intentions. For
example, the past cannot be changed, no matter how regrettable it is
or how if we wish to cancel it.
Also, for mysterious reasons, we can notice that the commitment of
conciousness to keep following the started path, is a very heavy one
: our universe is very, very big, with very many living beings
coming after each other and continuing the same adventure for many
millions of years, as well as (probably) in many planets in the
universe. This submits concious experience to heavy constraints from
a complex network of influences: concious choices, mistakes, random
events and diverse causalities.
It turns out that the laws of physics are made of different concepts
and theories connected together, describing different aspects of
physical reality.
But more precisely, the concepts forming quantum theory, are split
into two quite different conceptual layers expressing different
paradigms or types of existence.
- The more "fundamental" layer of physics can be qualified
as "purely mathematical", and is deterministic. It
represents the mathematical space which is open to the
visit of conciousness, offering a wide range of freedom to the
visit; but it does not deal with the concept of reality as we
normally understand it. It ignores any concept of a difference
between a universe that exists and one that doesn't, and thus
gives the same existence status to monstruous quantities of
possible universes (even if we restricted considerations to
those with fixed laws and values of the physical constants,
as these can't vary between different parts of the same
universe). It contains a mathematical model of time, but this
model of time, being purely mathematical and contained in a
fixed mathematical world, does not have the living essence of
time. As a dead model of time without substance,
it is symmetric with respect to the exchange between
past and future. All the ongoing research in particle physics is
dedicated to refining the details of this fundamental
layer.
- The upper layer of reality, on the other hand, can also be
called the "metaphysical" or "thermodynamic" layer. Its speaks
about the concept of reality and the uniqueness of our universe
(disregarding the possible real existence of other
universes...), and is time-dissymmetric. It deals with the
specific manner in which conciousness can (and is likely to)
proceed its visit in the mathematical world. It is
non-deterministic, and apart from its non-determinism, all its
properties are deduced from the "fundamental" layer of
physics, by logical rules that are mysterious in principle
but happen to be simple, clear and unambiguous in practice,
thanks to emergent properties from quantum physics that make the
effective predictions from this mysterious process independent
of any choice of the precise way in which it may be
parachuted. All its properties except one: its
time-dissymmetry. As a dissymmetric law cannot be deduced from a
symmetric one (at least not in this specific case), this
dissymmetry is in fact parachuted into the laws of physics,
from the fundamental time-dissymmetry of conciousness which we
just described.
The next sections that were previously here, introducing
quantum physics (with mathematical contents), have been moved:
Beyond probabilities
Quantum theory gives probabilities for physical phenomena, but the
behavior of the mind, as we explained, does not conform to any
probability law. This means that there is a sort of concious law
that has "preferences" among the possible behaviors allowed by
the physical probability laws, that concious beings will follow.
This can be expressed by saying that "understanding conciousness"
reduced the entropy of the behavior of concious individuals, as
compared to the observation of the same behavior without this
understanding.
More generally, understanding the world means to find an
interpretation of the world that reduces the entropy of the
observations made there. In other words, to find an optimized
compression format for the data of the observation. Such a
definition of an optimized compression format, may either be
mathematical or non-mathematical. Of course, compression formats
usually implemented in computers are mathematical ones, but
non-mathematical compression formats are conceivable too. For
example, some people communicate with SMS in a very abreviated form,
so that other people, eventually with some efforts, can "uncompress
the message" (understand what the message means), but it would not
be possible to make a program that would reliably uncompress such
abreviation into the correct full words they are meaning.
I think that the world (particularly the concious behavior) is
neither absolutely deterministic, but probability laws don't make
absolute sense either. Instead, there is a sort of free will. What
is free will ? Well, we don't know, and maybe we will never know, as
there can't be a complete understanding of it.
However, even when something is deeply beyond any possibility of
complete understanding, does neither mean that it is absolutely
wonderful, nor that it would escape all understanding.
Rather, it can often happen that, in their free will, people commit
many errors ; some miserable errors can be expectable, and some
non-material causalities (such as, losing one's love or
staying without love makes one depressed) can be uncurable.
But, if an understanding is not a mathematical one, then what can it
be, and does it really make sense ? Well, this is a very hard
question. And different people may have different sensibilities, so
that they would have different distributions of a priori
probabilities between worldviews. Indeed, inside an astronomically
long list of "possible wordviews" that may be conceived, they can't
be a priori equally likely: some can be seen as much more
plausible than others, even before any observation. It all depends
on the way you want to group them: if 1000 possibilities are "as
likely as" a million others, does it mean that each of the first
group is as likely as each of the second group (so that we have
1/1000 chance to be in the first group), or does it mean that we
have 1/2 chance to be in either group ? These are different possible
ways of compacting the information saying in which world we are.
When we don't understand the world yet, we don't know how to "make
sense" of it. So, how to compress the information about it. Then, as
we gather more information, this starts to "make sense", we discover
better ways to compress it. But good compression formats, that can
"understand" a lot of information as "explained by" a smaller
quantity of causes or "explanations", require to be themselves
specified in some compression format. And the problem, is how heavy
is the quantity of information necessary to specify this compression
format. The heavier it is, the less good is the explanation it
provides.
We can see this by expressing the compression format as a program,
and put this program together with the compressed file, thus forming
as self-extracting file (a program whose execution produced the
wanted file).
But we might also consider this as rephrasing the problem, but not
fundentally changing it: it is not possible to process the
self-extraction of the file unless there is an a priori knowledge of
the computer language in which this program has been written. We may
as well reinterpret the whole self-extracting file with its program,
as being ultimately the data of the compressed file,
while considering the language interpreter (that can run
the program), to be the ultimate program that will uncompress this
file.
But, the total size of the self-extracting file depends on how
and in which language the extracting program has been written; in
the same way as the size of a compressed file depends on the
compression format.
And, as the choice of a computer language is somehow arbitrary, it
also does not make absolute sense to say how complex is a
specification of a compressing format (it is more complex or "looks
more arbitrary" when written in a language than in another).
In other words: without a lot of observational data that have
different probabilities to occur as depending on different ways the
world might be, it would be hopeless to try to argue which worldview
is more likely than another worldview: it would remain irreductibly
subjective.
This subjectivity (assessment of how complex or arbitrary is
something) is especially important for non-mathematical forms of
understanding.
It even occurs in the context of strictly mathematical definitions.
We just explained it about the arbitrariness of computer languages
in which compressing programs can be written, but there is more to
it.
Some works on the foundations of mathematics, especially by G. Chaitin,
have established that there is randomness in pure mathematics too.
For example, we might consider the series of decimals of pi (or
other irrational numbers), as a series of random digits. Such
considerations have been intuitively summed up by saying that "some
mathematical claims are true just by chance".
Let us present one of his most amazing discoveries: "No file larger
than a certain size can be provably minimal" (where "minimal" =
impossible to compress as a shorter self-extracting file)
In other words, for any sufficiently large quantity of information,
we have no way to refute the possibility for all this
information to be "explained" by a smaller quantity of information.
This proposition looks strange, because it seems to reduce
infinitely many different possibilities into a finite number of
cases (expressed by self-extracting files smaller than a given
size).
How can this be ? This is, in fact, a variant of the incompleteness
theorem, playing the same way on the difference of viewpoints
between "successive times" in the foundations of mathematics.
The proof of the theorem roughly goes as follows.
The idea is to explicitly write down
a program (self-extracting file) A, whose instructions say the
following:
Program A = [Search for all possible proofs of mathematical
propositions (e.g. formal consequences of the ZF set theory),
until you discover a proof of a proposition of the form "B is not
the output of A" for whatever file B; then, give this B as
output].
(More technical details must be included in the program to be able
in this way to speak about itself)
In fact, this program A will run eternally without ever giving any
output. Because, if it happened to give an output B, this would
mean that a proof has been discovered of the proposition "B is not
an output of A", which is false. It would be such a pity to have a
proof of a false claim.
Now that we know that this program cannot stop to give any output,
this knowledge is not accessible (it cannot be proved) in the same
formal system that is involved in the proof. Its unability to
provide any output, means that there cannot be any proof of a
proposition of the form "B is not the output of A" for whatever
file B. This is the result that we have announced.
Consequently, for any series of random events, the belief in the
existence of (unspecified) laws determining these events is
unfalsifiable.
Now, back to quantum physics, we may wonder: why is it that the
behavior of lifeless systems obeys the probabilities given by
quantum theory (or is at least very close to this) while the
behavior of humans and animals is largely influence by free choice
away from these probabilities ? I have a suggestion of an
explanation, though I can't say if it is the right one or not:
The random effects of quantum processes happening in the brain, are
first perceived by only one soul, therefore giving this sould the
chance to "choose" the perceived results. But random results of
measurements in lifeless system, have many copies sent at the speed
of light in all directions, thus not giving the way to let any
unique concious observer be the absolutely first observer (because
of the relativity of simultaneity between possible perceptions by
many distant observers). Well, we may say the delay given by
the transmission at the speed of light to the observer is too short
to be meaningful, but there are "much bigger" delays before the
measurement in converted to a visible result, and between the
arrival of the light in the retina and the transmission of the
signal to the brain where it is finally perceived.
Global History
But let us now present an overview of our universal history starting
from the big bang, as science could discover.
Most of this information was extracted from various Wikipedia
articles (before noticing there is a short
and a long
summary
of the history of life on Earth; something about cosmic
inflation is from my familiarity with general relativity).
The Universe is about 13.75 billion
years old, starting with the "Big Bang" (a period of
expansion starting by initially extreme and decreasing densities and
temperatures). Current theories cannot account for any exact origin
of time, but give a good description of what happened after a very
short time (small fraction of a second) after it.
Cosmic Inflation: the first
process of observable importance, that swept away all observable
traces of what could happen before. In this period, most of the
(very high) energy density (or mass density, which is the same by
E=mc2) was of a form characterized by a high negative pressure. This
negative pressure has a gravitational effect of accelerating the
universal expansion in a roughly exponential manner, according to
general relativity, multiplying the size of the universe by large
numbers.
(The naive idea that, without gravitation, a positive pressure
accelerates expansion like in an explosion, while a negative one
would slow it down, only applies to a limited system surrounded by
void, with its boundaries accelerating inwards or outwards by the
difference between the internal pressure and the external void; such
an effect cannot apply to the big bang because of the uniformity of
the universe that has no such orientation of inwards and outwards;
instead, only gravitation applies, as it is not a force but a
determination of the space-time curvature).
This form of energy has the property of keeping its density during
expansion, rather than diluting it (just as an elastic gathers
potential energy during its extension, or a bubble keeps its surface
density of capillar energy while expanding; this energy needs not
come from anywhere because the conservation of energy only applies
locally, while the universal expansion is a global process).
The precise field/particle responsible for the inflation has not
been identified yet by particle physicists; still, predictions made
out of known physical principles applied to the inflation hypothesis
have already been verified by different observations. This explains
the approximate uniformity of the universe at the largest scales
(that became too far away for causally connecting and regularizing
later), and the small inhomogeneities at the origin of the large
scale structures of the cosmos (collapse of matter into galaxies and
galaxy clusters).
Inflation ends when all that energy converts into "ordinary"
particles and forms of energy, with positive pressure (photons and
speedy particles), thus slowing down again the expansion and
diluting the energy density faster than the density of ordinary
particles (photons lose their energy by Doppler effect, while speedy
particles reduce their speed by the relativity of speed between
different regions).
Big Bang nucleosynthesis. starting
3 minutes after
the big bang (when the temperature was low enough to not
immediately break away any composite nucleus), lasting 17 minutes
(until the temperature was too low for fusion to occur - to be
compared with the nearly 15 minutes of mean lifetime of free
neutrons): Nuclei heavier than hydrogen formed, leaving about
1/4 th of the number of
nucleons (or mass of
ordinary matter if we forget
other forms of energy : dark matter, photons, neutrinos, and
kinetic energy) into Helium-4,
while about 3/4 remained as Hydrogen-1.
Recombination (380,000
years after the big bang): The temperature of 3000 K is cool
enough to let electrons and nuclei form atoms. The space becomes
transparent to radiation, releasing what is now the Cosmic
Microwave Background (whose temperature decreased to the current
value of 2.725 K by Doppler effect during expansion). Ordinary
matter at that time (hydrogen and helium) was about 4×10-22
times the mass density of water, that is about one atom per 5 mm3.
Reionization (400 million
years after Big Bang). New sources of energy appear and break
again atoms into nuclei and electrons, but the density is now
low enough to leave the space rather transparent. These can be
quasars (matter falling into galactic black holes) and/or
Population III stars (very massive stars, thus with
short lifetime, that were the
only ones which could be formed first, in the absence of the
heavy atoms).
Oldest known star of
the Milky Way: 13.2 billion years ago (500
million years after the Big Bang).
Globular clusters formed
about 12.7 billion years ago (1 billion years after the big bang).
Thin Disk of the Milky
Way (8.8 ± 1.7 billion years ago)
Formation of the Solar System
began 4.57 billion years ago, from a big molecular cloud, after one
or more massive star(s), with thus short lifetime, first formed and
exploded in supernovae, giving heavy elements and compressing the
region of the cloud, making possible the creation of the solar
system.
Moon's formation 4.527 ± 0.010 billion
years ago, probably by a giant impact between the Earth and a
Mars-size planet, that also inclined the rotation axis of the Earth
and gave the Earth a very fast rotation (a day of 6 hours instead of
24). This rotation later slowed down by transmission to the Moon's
orbit (initially close to the Earth) through tidal interaction.
Late Heavy Bombardment:
period of intense meteorite impacts (began about 4.1 Ga, and
concluded around 3.8 Ga). From Wikipedia: "no consensus yet exists
as to its cause. One popular theory postulates that the gas giant
planets migrated in orbit at this time, causing objects in the
asteroid belt and/or Kuiper belt to be put onto eccentric orbits
that reached the terrestrial planets.
Note that the Sun's luminosity progressively increases in time. It
is now 30% brighter than it previously was. This needs to be
balanced by other processes, mainly a decrease of atmospheric
concentrations of CO2 and other greenhouse gases (which were
initially abundant), to make it possible for water to keep existing
in liquid form meanwhile. This will mainly take place in 2 ways:
deposit of calcium carbonate (CaCO3) in the oceans, and
photosynthesis.
Last universal common
ancestor between all current living forms on Earth (Bacteria,
Archaeas, animals and plants; except viruses): some 3.5 to 3.8
billion years ago
Photosynthesis started about
3.5 billion years ago
Cyanobacteria making
oxygenic photosynthesis (producing O2), may have appeared 3 billion
years ago (or between 2.8 and 3.7 billion years ago).
Great Oxygenation Event (2.4 billion years ago): The oxygen
produced by cyanobacteria, could finally remain in the atmosphere,
after organic matter and dissolved iron were saturated and could no
more capture it. This resulted in a massive extinction of anaerobic
organisms for which oxygen was toxic; but also in the appearance of
an ozone layer that would open the possibility for life outside the
ocean; and the possibility to get more energy for organisms able to
use O2 in their metabolism.
Huronian glaciation (2.4 to
2.1 billion years ago): the Earth was covered with ice, which may be
due to the disappearing of methane (consumed with oxygen).
Eukariotic cells appeared
1.7-2 billion years ago by integrating bacteria that could use O2
for metabolism, in the role of mitochondria.
First multicellular organisms
(1 billion years ago) while the lineages of animals, fungi and
plants were separated; molecular evidence suggests that fungi
colonized land at that time (while procariotes had done it already
around 2.6 billion years ago). Plants started photosynthesis by
integrating cyanobacteria in the role of chloroplasts.
(Ma = million years ago)
More Snowball Earth periods
(intense glaciations) would have occured around the times of 750,
710 and 640 Ma
Cambrian explosion : life seemed to complexify a lot around
530 Ma. This would include the development of complex eyes, shells,
skeletons (with the emergence of vertebrates) and exoskeletons -
unless these were what made possible a better preservation of
fossils, that our ability to detect the presence of life diversity
depends on. The earliest fossil crustaceans date from about 513 million years ago
Oldest fossils of land fungi and
plants date to 480–460 Ma
Arthropods on land around
530-450 Ma. (Arthropods were well pre-adapted to colonize land,
because their existing jointed exoskeletons provided protection
against desiccation, support against gravity and a means of
locomotion that was not dependent on water).
Ordovician–Silurian extinction event (End Ordovician or O-S)
(450-440 Ma, at the Ordovician-Silurian transition). Two events
occurred that killed off 27% of all families and 57% of all genera.[6]
Together they are ranked by many scientists as the second largest of
the five major extinctions in Earth's history in terms of percentage
of genera that went extinct.
The first tetrapods evolved
from fish (380 to 375 Ma)
Late Devonian extinction (360-375 Ma) near the
Devonian-Carboniferous transition. A prolonged series of extinctions
eliminated about 19% of all families, 50% of all genera[6] and 70% of
all species.
Plants evolved seeds (360
Ma) which dramatically accelerated their spread on land.
The Karoo Ice Age (360 to
260 Ma, named after the glacial tills found in the Karoo region of
South Africa where evidence for this ice age was first clearly
identified). The Earth during this time was covered with an immense
degree of vegetation compared to earlier times, causing a long term
increase in planetary oxygen levels and reduction of CO2
levels that resulted in this ice age.
The amniotic egg
evolved (340 Ma), which could be laid on land, giving a survival
advantage to tetrapod embryos. This resulted in the divergence of
amniotes (most terrestrial vertebrates) from amphibians.
Divergence of amniotes,
between the Synapsids
(ancestors of mammals, also called "mammal-like repliles"), which
started to dominate, and the Sauropsids (other reptiles) 310 Ma.
Supercontinent Pangea formed
300 Ma (?) (after a long story of continental drifts alternating
supercontinents and separations of continents).
Sauropsids
split: as for those still existing today, the ancestors of
turtoises diverged first, then quite later (at the end of the
Permian period) came a split between Lepidosauromorpha (ancestors of
lizards and snakes) and archosaurs.
Marine reptiles from
different origins started developing and will take an important
place until the Cretaceous extinction (65 Ma).
Permian–Triassic extinction event (End Permian - 250 Ma at
the Permian-Triassic transition). Earth's largest extinction killed
57% of all families and 83% of all genera (53% of marine families,
84% of marine genera, about 96% of all marine species and an
estimated 70% of land species). On land, it ended the primacy of
Synapsids. The cause of this extinction remains unclear.
Archosaurs split soon after,
between Avemetatarsalia (ancestors of pterosaurs and
dinosaurs, and thus of birds) and Crurotarsi (ancestors of
crocodiles).
Dinosaurs (230 Ma) appeared
by diverging from other Archosaurs.
Pterosaurs (220 Ma), earliest vertebrates known to have
evolved powered flight, appeared. Pterosaur fossils have been found
on every continent. At least 60 genera of pterosaurs have been found
to date, ranging from the size of a small bird to wingspans in
excess of 10 metres (33 ft).
Triassic–Jurassic extinction event (End Triassic) - 205 Ma at
the Triassic-Jurassic transition. About 23% of all families and 48%
of all genera (20% of marine families and 55% of marine genera) went
extinct. Many of the dinosaurs were spared and soon became dominant
among the vertebrates, as most of the other groups of early
archosaurs (like aetosaurs, ornithosuchids, phytosaurs, and
rauisuchians) were killed. These losses left behind a land fauna
mainly made of crocodylomorphs, dinosaurs, mammals, pterosaurians, and turtles.
Mammalian were small, but their lines began to separate.
Pangaea broke up (180 - 200
Ma) into Laurasia on the north, and Gondwana on the south.
Gondwana broke up (167 Ma)
into East Gondwana and West Gondwana.
Archaeopteryx, a dinosaur
traditionally considered one of the first birds (probably close to
their ancestors but not among them), lived around 150 Ma
Flowering plants : first
evidence to 132 Ma
Eutherians (ancestors of
placental mammals, which is the main branch of mammals) diverged
from metatherians (ancestors of marsupials), while prototherians
(ancestors of monotremes) had already diverged before. The earliest
known fossil eutherian, was found in Asia, and is dated to about 125 Ma.
Confuciusornis (125 to 120
Ma) is a genus of primitive crow-sized birds, more advanced than
Archaeopteryx (same remark).
West Gondwana split (130 -
110 Ma) into South America and Africa, opening the South Atlantic
Ocean
East Gondwana split between
(India-Madagascar-Seychelles) that began to move northward, and
(Australia-Antarctica-New Zealand), but some connections with Africa
will still exist later.
Later, competition with birds drove many pterosaurs to extinction
and the dinosaurs were probably already in decline, when came:
Cretaceous–Tertiary extinction event (End Cretaceous or K-T
extinction, 65 Ma), which may have been caused by the impactor that
created Chicxulub Crater
on the Yucatán Peninsula.
About 17% of all families, 50% of all genera
and 75% of species went extinct, including Pterosaurs, all
non-avian dinosaurs, most avian dinosaurs, and many other animals.
This left the space for mammals to diversify and grow larger.
Last common ancestor of primates:
63 Ma, as Strepsirrhini (which are the only primates of Madagascar,
also present in South-East Asia and Africa) split from the main
branch.
Laurasia split (about 60
Ma), separating Eurasia from (Greenland + North America).
Indian plate collided with Asia
(45 Ma) while Australia separated from Antarctica
Split between humans and
chimpanzees at 5 or 7 Ma
The Quaternary glaciation, or
current ice age, marked the start of the Quaternary period,
about 2.58 million years ago when the spread of ice sheets in the
Northern Hemisphere began. Since then, the world has seen cycles of
glaciation with ice sheets advancing and retreating on 40,000- and
100,000-year time scales.
Homo genus appeared then
(while the ancestors of the common chimpanzee and the bonobo split from each
other).
Quaternary extinction and Holocene
extinction: the Quaternary period saw the extinctions of
numerous predominantly larger species (megafauna), many of which
occurred during the transition from the Pleistocene to the Holocene epoch (around 12,000 years
ago). Among the main causes hypothesized by paleontologists are natural climate
change and overkill by humans.
Homo erectus migrated from
Africa around 2.0 million years ago, and dispersed throughout much
of the Old World, especially in Asia, until they probably went
extinct about 70,000 years ago.
Homo neanderthalensis lived
in Europe from about 400,000 to 30,000 years ago. They were strong
hunters, mainly (but not completely) carnivorous, thus more
depending on fauna for their subsistence than homo sapiens.
The last glacial period (most recent glacial period within
the current ice age) started approximately 110,000 years ago.
The Toba supereruption occurred between 69,000 and 77,000
years ago at Lake Toba (Sumatra, Indonesia), and it is recognized as
one of the earth's largest known eruptions. This supervolcanic event
may have plunged the planet into a 6-to-10-year volcanic winter
A bottleneck in human evolution
probably resulted from this eruption. The homo sapiens population
was reduced to a group of 10,000 or even a mere 1,000 breeding pairs
in East Africa. An important final step of the cultural development
of homo sapiens, as seen in the more sophisticated technology and
artwork, happened in that period (between 100,000 and 50,000 years
ago).
Homo sapiens conquered the world
in several waves quickly after this bottleneck, causing an
extinction of Neanderthals on their way (except for a little
interbreeding between roughly 80,000 and 50,000 years ago in the
Middle East, resulting in 1–4% of the genome of people from Eurasia
having been contributed by Neanderthals).
End of the last glacial period
10,000 years ago.
How might any religious subject escape science ?
What is religion about ? Religion is about providing concepts about
a reality of concern for the life of people, not directly perceived
but connected to our lives and perceptions, so as
to satisfy their need to understand life, and provide a form of
guidance on what to do or how to think that may better lead to
happy results for oneself and/or for others.
We explained in the previous part what science is about.
Science is about finding truths on complex issues as reliably as
truths can be found without science on obvious things. It is about
understanding the accessible world, discovering patterns and
connections between our perceptions, so as to be able to predict
what perceptions are more likely to come in the context of other
perceptions and decisions; thus giving clues on what decisions can
better lead to wanted results. And this understanding develops
through intermediate concepts that represent aspects of reality (the
predictive power of these concepts can be seen as an image of
elements of reality causing these effects).
We don't need science to know that chocolate and strawberries are
sweet, that night is dark, or that fun, friendship and love are
good. So, these truths are "not scientific". They aren't either
beyond science, but they come before it: they are are immediately
perceptible, and don't require any mystical revelation to be
discovered either.
Science cannot exactly predict the weather, earthquakes, what
time the phone will be ringing, and many other things - but no other
method than science can do it better (with possibly minor, very rare
and impractical exceptions on some issues). We cannot access
their full range of causes, nor do we have the computer power to
make any exact weather forecast a week in advance even if the
underlying laws are theoretically known. Thus, the very existence
and knowledge of exact underlying laws is rather helpless and
irrelevant here. Good approximations of such laws suffice.
Finally, what is the problem ? The problem is, how the hell could
anyone fail to notice that the issues addressed by religious
doctrines are directly and naturally a particular case and an
integral part of what science can handle.
How could anyone say that issues dealt with by religions are not
scientific questions, and is there anything true in these arguments
? Let us check these people's claims, what sort of a difference
could they see between these two fields, that might be used to
justify for such a difference.
One important argument seems to be, that science cannot explain
feelings, nor predict them by putting them into equations.
Indeed, as we previously explained, the mind's behavior cannot be
predicted through formulas, as it does not follow any mathematical
determinism.
However, is it really a problem ?
The assessment of happiness, in good approximation, is readily
available to our senses, not requiring any mystical revelation
either, so that this does not constitute any relevant limit of
science that an alternative form of truth inquiry could usefully
overcome.
Thus, how can the absence of any theoretical reference of an exact
mathematical law supposed to determine feelings (and even the
fact that such a mathematical law does not exist), make any serious
difference here ?
It is really necessary to recall that the work of reason and science
does not require any a priori full knowledge of the ultimate laws
that determine everything ? On the contrary, the scientific research
has usually been to start from observations, for guessing more and
more clues on how do things happens, what do the outcomes depend on,
and what the underlying laws may look like.
So, what religious question might escape science ? All we need
to start a scientific research, is observations.
Do we have observations concerning happiness ? Well, yes. The
perception of one's own happiness or sadness, is one of the most
direct perceptions that can be. What about perceiving the feelings
of others ? Some may guess more or less such things, rightly or
wrongly. However, it is not so hard to get a good approximation
of this parameter, just by asking them the question.
The causes of happiness are generally perceptible things too. People
can be happy or sad depending on what happens to them. In case it
may depend on their thoughts, these can be expressed as well.
It may sometimes happen that some people become happy or sad for no
visible cause (even by themselves), however this is a marginal case.
So, happiness is roughly determined by events, which are themselves
partly random (we shall discuss later what it means) and partly
determined by a large system of visible causes and actions.
Issues on life after death ? Collections of NDE testimonies as
already available online, provide more reliable and complete
information than any religion ever did.
In fact, most religious claims, by the way they connect to life, are
in average as verifiable (and falsifiable) than most other
scientific fields. Sometimes such verifications would be very hard
to make, however such a difficulty is no way specific to religious
questions. Many traditional objects of scientific research are
quite hard to check by logic, observation or experimentation as
well.
So, the main difficulty that makes such a scientific inquiry on
religious claims harder than those on more traditionally scientific
subjects, is the problem of how to start deciding to seriously
undertake the research by decently rational people. Just as the the
surest way to lose a war is by not send any soldier to the
battle.
Morality as a scientific field
Morality is about what actions can lead to a highest expectable
global happiness.
This field of inquiry might be split into two questions.
One question is, what are the logical connections (causalities) by
which someone's actions influence effective circumstances or
other situations that people will face.
The second question is how these circumstances will affect their
happiness.
Since all these things (actions, circumstances and happiness) are
observable, and the very object of morality is how actions influence
happiness in this way, this suffices to make morality a genuine
field of science.
This call for considering
morality
as a science, and more precisely, for the same reason, that it
must be a consequentialist (utilitarian)
view, has ready been made by other authors, especially by Sam
Harris. Unfortunately, while he had the merit to have claimed it
loud by repeating and reexplaining this same remark over and
over again, it is a pity that he hardly went any further in the
effective study of this field. But we are going to present an
effective start of such a work here. And the obsessive repetition of
a single elementary principle without going further, is
a philosopher's mania rather than a scientific work.
So, let's go a little further. We said, the issue can be split into
2 questions. Let's have a look at the second one: how do
circumstances affect happiness ?
One may assume this question to be obvious, and its answer as
directly accessible to our senses, just as we said that the measure
of happiness is directly accessible to our senses: to know what
someone needs for being happy, it would suffice to ask the question
: "What do you need to be happy ?"
Assuming this measurement tool to be correct and thus focusing on
the first question (what actions can better lead to specified
concrete consequences) as the hard part, the science of
morality is reduced to something quite practical, far from the
mysteries of psychology, a field where scientific methods can fully
apply as all the relevant elements and causality relations are, in
principle, accessible to our senses and understanding (and, just
like in any other sciences, the only problem is that they are very
complex). This may be seen as encompassing all applied sciences for
how their specifications of how to produce specific individual tools
and objects. But a crucial aspect is how actions from several,
many or all individuals can connect and interact together to
globally lead to such wanted outcomes.
This is the field of economics and politicial science.
In this sense, the science of morality is quite old, and already
took note of readily available solutions.
Concretely, a typical solution to find out and provide what objects
people may best need for their daily life, is to put them in a
supermarket and let them choose what to buy. But this would
only address the needs currently satisfiable by buying something,
which are not all needs.
Anyway, supermarkets are but a particular case of a general
principle of self-help that already works in many areas (and more
reasearch can be done to still extend its efficiency to more areas),
so that the self-awareness of one's needs (if correct)
motivates the actions that lead to the optimized consequences
(with no need of any explicit measure of individual or
collective welfare by outside observers).
Economic and political sciences are dealing with the global flow of
actions as resulting from everyone's strive for their respective
goals, and how well this all leads to the accomplishments of the
expressed goals. So, these fields can in good approximation be
considered as synonymous to the science of morality. Or, they can be
seen as another aspect of the same more general science. This
more general science is the science of how politico-economical
systems and individual actions in these systems affect a sort of
global sum of the satisfaction by everyone of their respective
wants.
Inside it, the political and economic questions are
to compare these satisfactions as depending on the system
or the policy, for a fixed set of behaviors; while the morality
questions are to compare the effects of different possible behaviors
of an individual inside a fixed politico-economic system.
Sometimes both questions may coincide, when individuals have the
power to change the system or policy.
In other ways, we can consider morality as more general than
economics, as it includes the consideration of all actions and
their consequences (including among people who interact informally,
maybe because they know each other well, disregarding the formal
rules of the more global society), while economics and politics
deal more specifically with the only actions that go through
collective formal processes (markets...) and are concerned
with the formal rules of society as a whole.
However, as I already explained in other texts and will develop in Part
IV, new economical and political solutions can be developed
through technology, extending their usefulness beyond their
traditional scopes, so as to make the economic and political fields
nearly as general as morality.
So, the problem with economics and political science is that they
are currently far from perfect and need to be further worked on.
Now let's come back to the second morality question (what do people
need), that we suggested to dismiss as trivial : this is the
"self-responsibility hypothesis" assuming everyone's needs to be
expressed by their respective intentions or wills (opinions
about one's own needs). For practical purposes, economic theories
often hold this self-responsibility hypothesis as true.
Now, is it possible to disagree with the self-responsibility
hypothesis, and build a morality system over some negations of it ?
Such a view is paradoxical as it presents a conflict of opinions: it
puts forward an opinion about people's needs that is in conflict
with their respective opinions about their own needs. This view is
quite bold as requires :
- an effectively present (measurable) definition of
what someome would need, in conflict with the concerned person's
own opinion;
- a concrete means by which this other opinion wins (is
satisfied) against the person's own will.
How can this be ?
We can observe three methods (conceptions of other's needs and
their associated "solutions") that have already developed on a large
scale: the Socialist method, the Buddhist method, and the
Christian/Muslim method.
The Socialist method
involves 3 ingredients: a fool, a doctor and a coercion system.
The doctor's role is to define the fool's needs in contradictions
with the fools'own opinions (wants).
The role of the coercion system is to keep the fool's life under the
doctor's control.
However there is a limit to this system, as the doctor is but a
human just like the fool, and thus can be mistaken as well. As the
doctor's errors would lead his will to harm the fool's needs (while
the fool's foolishness only harms himself), this is rather called
madness.
Thus its reliability somehow requires 2 more ingredients: a
meta-doctor and a meta-coercion system.
The role of the meta-doctor is to find out whether the doctor is
sane or mad.
The role of the meta-coercion system is to give the means for the
meta-doctor to defeat the coercion system ifever the doctor is
found to be mad.
Examples such coercions already in force:
- The free and compulsory nature of the public education system.
(The public funding is a form of coercion as it is based on
taxes, while if the student was not fool and really needed this
education he could just borrow the money for his studies; this
alternative self-responsibility solution may require a sort of
insurance for the case of an unpredictable misfortune in looking
for jobs after this)
- Other forms of compulsory social security
- The war on drugs
- Possible forms of sexuality regulations
- Employment regulations that do not let people to work the
amount of time they want, or wages regulations that force some
people to remain jobless if they are not productive enough to
get a job with the legal wages.
So, the doctor's role is usually played by the government, the
meta-coercion system is given by democracy (assumed to be enough,
but quite miserable in practice), so that the meta-doctors more
or less coincide with the fools themselves. This way of closing the
chain of doctors and coercion systems into a loop, saves us from the
need to specify meta-meta-doctors with meta-meta-coercion
systems and so on ad infinitum. But it turns out when following the
chain of dependencies of the socialist coercion system,
that after its "democratic" meta-coercive system, it has two
meta-meta-coercive systems, one is constitutional, and the
other one is educational, thus only differing from the Buddhist
method by the compulsory nature of public education.
With the Buddhist method
(or rather, a method more or less followed by many religions), the
fool is called a "disciple", the doctor a "Master", and the coercion
method is purely dialectic. It goes as follows:
- The Master claims to have got a direct perception of the
naked reality (called Awakening, Enlightenment or the like)
while the disciple would be living in illusion;
- The disciple starts trusting the Master more than his own
senses;
- The Master claims that the satisfaction of desires leads
to suffering;
- The disciple, trusting this, makes a tabula rasa of his own
wills.
Here again, the meta-doctor is the disciple himself, who is free to
follow the master of his choice, or to follow none and keep his own
mind, as Buddhism is tolerant and openly acknowledges the diversity
of ways and the disciple's personal responsibility in making his own
choices (so as to save the Master from any responsibility in case
his guidance would be wrong). (But other religions with a similar
method don't so liberally recognize the value of this
meta-coercion system).
Note that such a method develops more as a sefish than a moral
work, as most of the work is the one done by the disciple to change
his own will for the sake of some assumed better personal happiness.
The Christian/Muslim method
is the simplest. The fool (pious person) just needs to express his
wishes to God in prayer. Then if these wishes don't happen to be
fulfilled, he will conclude that they were not God's will.
No coercion system is needed, as God is assumed to be omnipotent
anyway (or to say it otherwise, God's will is redefined as the
outcome of the vacuous coercion system identified as destiny), so
that even the attempt to wonder what this coercion system could be,
would be condemned as blasphemy (a doubt towards God's omnipotence).
For the same motive of blasphemy prohibition, no meta-doctor can be
tolerated either.
Now let us sum up the whole field of research in morality by the
list of the main questions it is made of, some of which will be
later examined in more details:
- What is the range of goals that should be seeked for, and
their respective importances: human happiness, animals
happiness, God's happiness (through worship or anything else),
afterlife purposes, environmental preservation
- How valid are the above traditional methods to correct
the expression of needs, from their natural form to any more
correct expression of the real needs (specifying the direct
circumstancial conditions of happiness);should such corrective
methods be abandoned or further worked on, and can such
methods be done sufficiently correctly and obtain worthy enough
accomplishments compared to the coercitive works
and collateral damages associated with risks of errors and
other perverse effects (with the people's tries to avoid this
coercion)
- By which means and towards which forms can and should the
system be changed, and what laws would need to be adopted,
either now or in later circumstances or systems. For example,
can a system help to "make people more rational" by better
informing them on what intermediate purposes they should follow
to more efficiently serve their expressed ultimate needs ;
how morally efficient can be works to improve the system, as
compared to works to develop personal moral actions inside the
existing system(s);
- As innovations and revolutions (hopefully towards better
systems) cannot go on forever but will have to converge to some
form or stability sooner or later, and anyway cannot be
everybody's task, what are the main features
of morality issues (the right rules, principles...) to be
expected in the world, first in some near future, then in
some ultimate system, in terms of one's actions in a fixed
system (out of exhaustion of the needs for improving the system)
- because the very purpose of legal systems is to forbid evil
actions and try to prevent them from happening.
Parapsychological issues and paradoxes
The problem of evil : what's wrong with the universe
When studying the universe in its different aspects, we face a
problem:
When considering the first principles of existence,
- that conciousness makes up the fundamental nature of
everything,
- that all councious individuals are somehow connected and parts
of a whole universal conciousness, and relations between all
individuals (parts of the universal conciousness) should in
principle be based on love,
- the beauty of the mathematical theories describing the
physical universe at a fundamental level,
it all looks like the universe should be deeply good, and that
everything should be wonderful there.
However, experience shows that many things there are going wrong,
many people suffer, many people are in deep error, and many crimes
and abuses are made and profitable.
If we just try to imagine how things should be just by pure
thoughts, reasonings, we can make some deductions on what to expect
about things. Namely, that the world should be fair, joyful and
harmonious. But these expectations do not fit observations.
So we are in a strange universe where first principles cannot
properly explain some important observations. Can they ?
If theory and experience seem to contradict at first sight, then we
need to examine each in more details, and check every seemingly
contradicting argument and observation in all their aspects one by
one, to separate the true from the false everywhere. If it is not
very carefully, then contradictions should vanish, because... the
universe is real and the truth cannot contradict itself.
But this will turn out to be quite hard, and even more paradoxical
than could be expected at first sight.
As there are problems that not all is going well in the universe,
then we do need to understand exactly what is going wrong and why,
and what solutions can be found.
Just pretending that things are going right would not help.
A general trend among "spiritual people" is to view things in such
ways that it makes them feel good by insisting that, according to
them, some kinds of things would be going well. In such a way, they
reject the cause of troubles onto some other aspects of things, that
they are less disturbed to see as going wrong.
Their motivation for interpreting the causes of troubles as coming
from something rather than something else, can have several causes:
It can be feelings; but this is only a subjective feeling that makes
them more sensitive to something than something else, so that they
feel better by seeing the causes of troubles as coming from
something than something else. But other people's sensitivity can be
oriented otherwise, so that a view that better satisfies someone may
make someone else feel worse. For example, some people like to
imagine that God makes things good and that troubles come from
people's bad hearts or bad actions. This can help bring them good
feelings towards God, but also be quite unfair and insulting towards
their fellow humans (and even sometimes to themselves).
But it can also be some sort of logic and reasoning, as it seems, so
as to make their worldview coherent enough to their satisfaction of
having the impression that they understand the world rather well.
In principle, logic and reasoning cannot contradict reality. The
problem comes with naive and approximate reasoning, of a kind
that satisfies many people and seems logical to them, but that would
not stand careful scrutinity, and whose conclusions can happen to be
refuted by more careful research (reasonings and observations).
Ultimately, what is needed and good, is not to believe something
something rather than something else just because it feels well, or
because it helps to praise God. Rather, it is to objectively check
and understand more precisely how things are, so as to not make
mistakes about how to help solve problems, and to not making any
innocent person feel guilty for having done the right thing just
because such false accusations would help some other people to feel
good.
Let us start with a famous example of a debate:
Darwinism vs. Creationism or Intelligent Design
Are the laws of physics fine-tuned for life ?
A natural guess, when considering that the universe is ultimately
created by and made of conciousness, is that it would be fine-tuned
and designed for life.
So we have to examine this guess.
Let us start the consideration with the laws of physics. They
form very remarkable and wonderful theories indeed, so that it
would be quite hard to imagine a universe made of more elegant laws.
But these laws are formed with a number of seemingly arbitrary
choices of structures among other conceivable possibilities, as well
as a list of seemingly arbitrary constants, for which we currently
have no explanations.
How well-designed for life is that ?
A first parameter to consider (so obvious that some forget it) is
the number of dimensions: we are in a space-time with 4 dimensions,
divided into 3 space dimensions and 1 time dimension, together
forming a Minkowski space that is very similar to Euclidean geometry
(making time be somehow like space, despite the fact that it
does not feel so in everyday experience).
The fact there is only 1 time dimension, is required by the
properties of concious existence, that we previously described.
But, why does our space have 3 dimensions, rather than another
number ?
In fact, roughly the same laws of physics (general relativity and
quantum physics) could apply to space-times with other numbers of
space dimensions (and even with other numbers of time dimensions).
However, these would not be suitable for life by any similar means
to those that we are familiar with:
- General relativity (that describes gravitation) can be applied
to spaces of other dimensions as well. However, its effective
appearance as the Newtonian force of attraction in 1/R2
only comes in the case of 3 space dimensions; with 2 dimensions
it does not provide any force of attraction, while for n>2,
its application to a space-time with (n+1) space dimensions
gives an attractive force in 1/Rn, which (for
n>2) cannot give any chance for a planet to have a stable
orbit around a star.
- As the formula of the attractive force ( 1/Rn in
(n+1) space dimensions) happens the same with electromagnetism,
atoms as we know them (electrons in quantum stable orbits around
nucleus by the electromagnetic interaction) could not stand with
more than 3 space dimensions.
What about other parameters in the laws of physics, which seem
arbitrary ? Some authors have claimed that they would be remarkably
fine-tuned for life. Victor
Stenger disagreed. Precisely, he considered how would a
universe behave with other values of the main physical constants in
some range around their value in our universe, and found that such
variants could be suitable for life as well (if the
modifications of the constants are "not big"). But someone
replied. Let us leave this debate to specialists... (random example
of debate on the subject)
The scientific consensus for natural evolution
Now admitting the laws of physics with all its constants as fixed,
what about the emergence and evolution of life: has the evolution of
live been guided in a concious manner, with some plan on where it is
going ?
This is a serious question, where purely philosophical expectations
would lead to see it as highly plausible.
So, in terms of pure thinking and expectations, the idea of
intelligent design could have been a plausible idea. However, this
idea has to be compared to observational evidence.
A lot of evidence on how life evolved, has been gathered by
biologists and paleontologists.
From this evidence, a large consensus has emerged among them, that
the genetic evolution of life has all the characteristics of being
the result of blind natural selection processes, with no observed
significant trace of remarkable guidance from a mysterious origin
(not to speak about young-Earth creationist views that have no
plausibility at all - as Christian preachers once had trouble trying
to evangelize the Chinese who had an older record of ancient
history than the creation time claimed by the Bible).
References:
Statement of the
scientific consensus by the American Anthropological Association
Level
of support for evolution
"99.9 percent of scientists accept
evolution".
the scientific community considers intelligent design, a
neo-creationist offshoot, to be unscientific,pseudoscience, or
junk science
...
a coalition representing more than 70,000 Australian scientists
and science teachers issued a statement saying "intelligent design
is not science" and calling on "all schools not to teach
Intelligent Design (ID) as science, because it fails to qualify on
every count as a scientific theory"
The same article mentions a variable level of support for evolution
among religions.
There has even been official support for evolution by religious
bodies:
According
to V. Stenger (physicist and skeptic)
"Only
abysmal self-complacency can see in Man a reason which
Omniscience could consider adequate as a motive for the Creator.
The Copernican revolution will not have done its work until it
has taught men more modesty than is to be found among those who
think Man sufficient evidence of Cosmic Purpose."
Misconception
of science :"Scientists Have an Atheist Agenda"
"Just
because no
scientific
study has indicated the presence or need for a deity in
the universe does not mean that this was the intent of the
work. It may be true scientific study in general has the
overwhelming lack of indication that the universe has any
outside influence, but that does not mean that is what
scientists wanted to believe."
Searching for the
Watchmaker
The difficulties debating the subject - scientific illiteracy
problems
I recently saw a Christian Web site (I guess there may be many like
this) speaking about science, and trying to argue that Intelligent
Design would be a scientific position, while Darwinism would be
non-scientific.
That site tried to explain that Intelligent Design would be
falsifiable while Darwinism would not.
How funny.
I happened to hear from Christians at some times a number of claims
against Darwinism (even made with a tone of mockery against
Darwinism) arguing about the Missing
Links (e.g claiming that no intermediate forms between apes
and humans could be found), or that some complex organs such as eyes
are so "well-designed" with all parts necessary for the working of
the whole, so that it could not have appeared by mere chance and
natural selection.
Such claims are so well falsifiable, indeed, that they have
already been fully refuted, for example by the discovery of
explicit explanations of the evolutionary development of the eye
step by step, with each step being selected as it brings a better
ability.
The consensus of the scientific community for natural evolution, is
remarkable in front of oppositions by otherwise dominating
ideologies, not only on the
right but also on the left
(but these "right" and left" sides can be understood as similar
religions taking the same side of the real opposition, that is the
side of feelings and a priori value judgements against reason, and
the side of popular stupidity against intelligence).
It would be rather pointless to try to answer all
anti-darwinist arguments in much details. Who do they think
they are ? Do they claim to teach scientists about what is science ?
Do they think that 99.9% of biologists are ignorant about their own
field or about what is science ? Who are they trying to convince ?
If such a few pages made of a couple of childish "arguments" will
succeed to confort their ignorant Christian readers in their
feelings and desires to believe that Darwinism is stupid and that
their faith in Jesus makes them much more clever scientists than the
professional ones, can this "success" ever have anything to do with
the truth ?
(see also about the
fundamental misconception "Scientists Are Arrogant, But They Can’t
Know Everything")
Seriously, whatever may be their arguments or what I would try to
answer, would not change the very heavy trend of what emerged from
the huge amount of observational evidence in biology: that, given
the available evidence, the only rational position that can resist
is the Darwinian position, while Intelligent Design happens to be an
irrational position, in the sense that to persist giving it any
credit (as many ignorant people do) against the available
evidence, happens to require quite irrational attitudes.
But no matter the refutations, anti-darwinists carefully
keep ignoring the experience of how often their claims happened
to be refuted, and keep claiming to make much wiser predictions on
future discoveries than scientists.
In fact, the continuing public opposition to Darwinism is mainly
based on a great deal of ignorance of the existing evidence: (from
wikipedia)
A 1997 study
found that fewer than 20% of Americans possessed basic scientific
literacy and a People for the American
Way poll found that less than half (48%) of those polled
chose the correct definition of evolution from a list. In 2006,
New Scientist reported that almost 2/3 of Americans believe they
share less than half their genes with "monkeys",
when in fact the figure is between 95–99% depending on the primate
and comparison method
Thus, a majority of very ignorant people who politically support
(through the Republican Party...) an educational system marked by
scientific illiteracy, as well as a litterature with some complelety
indefensible pseudo-scientific claims that conveniently give an
illusion of scientific credibility for their religious creeds,
suffices to explain the social persistence of this nonsense,
disconnected from all existing evidence.
But to those who still think they would have arguments against
Darwinism...this is a too big and hard subject for making it
possible to give here a significant account of all the arguments
that can be said. A summarized presentation may not be able to
give it justice, while anti-scientific propaganda may be the
strongest.
As reported
here (about attempts by proponents of intelligent design, at
inserting "critical analysis" of evolution in some curriculum, but
in a way that perverts the debate):
"
The good feelings didn't last long. Early this year, a
board-appointed committee unveiled sample lessons that laid out
the kind of evolution questions students should debate. The
models appeared to lift their examples from Wells' book Icons of Evolution. "When I first saw it, I was
speechless," says Princehouse.(...)
After months of uproar, the most
obvious Icons-inspired lessons were removed. But scientists
remain furious. "The ones they left in are still arguments for
special creation - but you'd have to know the literature to
understand what they are saying. They've used so much technical
jargon that anybody who doesn't know a whole lot of evolutionary
biology looks at it and says 'It sounds scientific to me, what's
the matter with it?'" says Princehouse. "As a friend of mine
said, it takes a half a second for a baby to throw up all over
your sweater. It takes hours to get it clean." "
However, let's try.
The evidence from poor design
Moreover, it even happens that our eyes
are not as well-designed as they could be, as there does exist
other animals with better designed eyes than our own: Octopus has
better designed eyes than vertebrates, and Mammals have lost the
tetrachromatic vision, which other terrestrial vertebrates (birds,
reptiles...) inherited from the first tetrapods.
Also, a large part of the genome in humans and many other
organisms, is made of a lot of wasteful copies of the same genes
whose only function is to multiply the number of their copies inside
this genome (or otherwise promote itself during reproduction) - a
property which is considered to have been inherited from some
primitive virus that settled in its host durably in early
evolutionary times.
Some more examples of bad designs (among many other possible
examples) are in the Argument
from
poor design page (against the existence of God).
Other examples are given by the many cases of extinct species: what
were they designed for ? Were they designed for extinction ?
The evidence from human-driven evolution
In fact, it's not very difficult to debunk the main naive thesis put
forward by opponents of evolution, that consists in disbelieving the
theoretical possbility for all those "wonderful" complex
functionalities in living organisms, to have emerged out of mere
random mutations and natural selection. Somehow we may consider this
question to be a "purely mathematical" question, as it is
mathematically rather well-defined (except for the concious behavior
of animals, which can be driven out of the equation by restricting
the consideration to the evolution of plants), but of course the
difficulty is its astronomic complexity, as it involves the
processes occuring all over the planet during about 1 billion years,
which is most probably too big even for the most powerful of our
supercalculators to simulate. Without the possibility of effectively
operating such a simulation, different people might keep diverse and
opposite convictions according to their personal feelings
(intuitions) about "what the rational view must be", each one
considering one's own view as the reasonable one, and dismissing the
opposite view as blind faith, but with no easy objective way to
decide whose intuition is right.
However we do have some hints out of experience. The accessible
experience is not as big as the whole history of life, but it is
already significant. I want to point out the experience of the
documented evolution of species that occured under the human control
since humans took over the planet, especially agricultural species
and pets (to not speak about the extinction of many species
exterminated by humans for different reasons - species that God
designed for being finally exterminated, probably). Examples among
many others: yellow
bananas appeared in the 19th century and need human
intervention to survive because they have no seeds; dogs evolved
into quite diverse races under the human control after a common
origin; bacteria developed resistance to antibiotics... Improvements
are even perceptible during a farmer's lifetime (which is why they
bother caring about selecting their animals).
Very important positive changes occured by natural mutation with
just an artificial selection by human control.
Would anyone claim that this evolution was mysterious, beyond
explanation, and requiring some supernatural intervention ? Hardly
so. Mutations were natural; humans did not choose them. These
species had a much longer evolution, before being domesticated,
where they were not a priori designed for humans. It is the hand of
man operating the selection, that changed them into this "design"
(for human convenience; or inconvenience, in the case of bacteria).
This happened in a very short time (centuries, millenia or tenths of
millenia...) relatively to the history of life (hundreds of million
years): less than 1/1000 of it.
Thus, why the hell should we dismiss the plausibility for natural
selection to have driven evolution towards the many complex useful
features for survival that we observe, considering it had over 1000
times more time for this, than the already dramatic evolution
towards human convenience which we admit to have been the natural
consequence of human selection over natural mutations ?
The convenience of scientific research ?
Admittedly, there are other viewpoints about why to see Intelligent
Design as an irrational idea.
For example, this
argument against Intelligent Design. states the following
point among others:
"Yet
it's
fundamental to the philosophy of intelligent design: I don't
know what this is. I don't know how it works. It's too
complicated for me to figure out. It's too complicated for any
human being to figure out. So it must be the product of a higher
intelligence(...) How presumptuous it would be for me to claim
that if I can't solve a problem, neither can any other person
who has ever lived or who will ever be born.
Science is a philosophy of
discovery. Intelligent design is a philosophy of ignorance. You
cannot build a program of discovery on the assumption that
nobody is smart enough to figure out the answer to a problem.
"
Indeed it could have been much more problematic to develop
scientific research and knowledge on how life could develop on the
Earth if the evolutionary process received an important deal of
influence from supernatural intervention.
Fortunately for scientists (and very unfortunately for the very many
miserable lives of animals that had a hard time during this long and
painful evolutionary process), this is not the case.
Natural evolution and the mind-matter duality
Not a spiritual evolution
A common misunderstanding of natural evolution among spiritual
people, is to interpret it as similar to or identified with some
idea of "spiritual evolution". Namely, something that would feel
like an educational process, an adventure of discovering,
experiencing, taking lessons and choosing to change one's behavior
out of lessons learned.
Somehow, we might indeed make such a parallel, and notice that it
indeed behaves this way. However, this is only valid in a very
metaphorical sense. Just an abstract mathematical comparison, which
has some operational status of a comparison in the eyes of
mathematicans and other scientists. However, this comparison would
fatally become a disastrous misunderstanding when reaching the minds
of spiritual people, because the very concept of what is a similarity, has a
very different meaning to them than to scientists.
This misunderstanding comes from the fact that spiritual people
approach any concept in an essentialist framework, in terms of how it feels and what it is ultimately made of;
while scientists approach concepts in non-essentialist, structural
terms.
Namely, natural (or artificial) selection, is a mere material process only "educating" the
NDA, and has no f***ing care for the souls (feelings and
wishes) of the individuals at stakes.
For example, if along centuries, pigs grow fatter, and cows evolve
into having bigger and bigger udders that give more and more milk,
it's not because cows are following a spiritual educative path
towards a better self-fulfilment (nor even towards a higher empathy
for humans) where they discover that having a bigger udder makes
them feel better, but because the selection process that is forced
upon them from the outside, happens to preferably reproduce this
feature.
Immaterial souls neither require nor produce intelligent design
Now that we presented both the defense of mind-matter duality and
darwinan evolution without intelligent design, this combination will
seem odd to many readers, as few are the authors that promoted
it. And I admit that it also sounds odd to me.
Still, careful consideration shows no direct contradiction between
these claims.
As has been observed in Near Death Experiences and other paranormal
experiences, it is possible for our mind as well as other
spiritual entities, to visit this universe (and also leave it)
without any material support such as a brain. Therefore, there is no
reason to think that conciousness ever had to wait for the emergence
of humans (or other animals of importance) for being here to observe
the development of life and interact with it. This possiblity does
not oblige conciousness, that was here and eventually incarned into
biological organisms, to have any well-designed, long-term plans on
where this evolution would be all heading.
Indeed: we don't have ourself any long-term plans about where life
will be heading in the next hundreds of million years, and we are
not dedicating our concious efforts on this issue by any means. And
anyway, having such plans would be pointless, because... the future
does not exist yet, and cannot be predicted with certainty. But for
the same reason, why should (and how could) the actions of concious
beings on Earth in the previous hundreds of million years ago, have
cared for us by any means ? They didn't.
Once admitted that the incarnation of souls in biological organisms
along evolution does not necessarily produce traces of intelligent
design in the many generic characters for health and ability that
have been studied, what about the development of the brain that
governs this mind-matter duality itself: did it require any
intelligent design, or could it be produced by blind darwinian
evolution too ?
I think, there is no problem either for blind darwinian evolution to
have produced these opportunities of mind-matter interaction with
their observed characteristics.
First, because there is no problem to imagine that nervous
systems could develop based on their selective advantage even
with no soul incarned; while souls passing by could occasionally
play with the quantum indetermination of the behavior of these
system, as a primitive form of incarnation
Second, because there are a number of indications (from "spiritual
healings") that the mind can directly interact with and affect
some biological systems other than nervous systems.
So, there is no problem to imagine that some primitive forms of
incarnations of souls in biological organisms could start at some
time in the ancient history of life on Earth, with organisms that
could work (survive and reproduce) by themselves but that souls may
occasionally influence.
Some species may have developed characteristics where this
interaction took more and more importance in the behavior of these
organisms, and where it could have provided a selective advantage.
Souls there could have started to play the game of taking part in
such interactions, just because it was a funny adventure to guide
these organisms to their survival.
We have explained that conciousness has unique abilities to behave
in some sort of creative, intelligent ways that cannot be imitated
by mere mathematical calculations (which organisms with a nervous
system but no souls could be able of). This explains how
interactions with souls can give organisms a decisive selective
advantage over other organisms that would not host any souls.
Progressively, natural selection favored the characteristics of this
mind-matter interaction such that the mind became "enclosed" in the
body, attached to it with hardly any means to get out of it or
travel outside it, and thus with the impression of being identified
with this body. This is because this is the way to oblige the soul
to be most careful about protecting the survival and reproductive
interest of the body, in a merciless jungle where characters of
universal selflessness (or abilities to "leave the battle" by
curiosity for visiting something else) would defeat the
reproductive advantage of the bodies that would have them.
Now if you ask: which are the organisms that host souls ? Well, I
don't know. I guess that all vertebrates do, but I can't tell about
the case of insects and other arthropods. So what ? Rational
thinking does not consist in pretending to have answers to every
question.
Still if I really had to make a guess whether insects have a soul or
not, I would say yes, for the following reason. When I was a child,
I sometimes happened to play with a fly, pulling its legs and wings
apart. And you know what ? I felt bad at doing so.
Darwinian selection may be seen as a form of empirical method for
developing complex structures able to cope with a huge lot of many
situations that may happen, both to the body and to the soul, and
which could hardly have been predicted in avance by pure theory -
even if can be deplored as so wasteful.
However, there is another aspect of the situation, which makes
the combination of mind-matter duality and absence of intelligent
design, more heavily paradoxical.
The problem is that, it would not even require any grand visionary
plans, nor any wonderful miracle, for a higher power (God, or the
community of spirits not currently incarned, or anything like this)
to push the evolution forwards to the greater good, in a way that
would generate effective traces of intelligent design in the
evolution of life on Earth.
All it would take from such a higher power, is a combination of
common sense, elementary observations, discipline and morality, such
as we humans are already largely capable of.
The method would simply consist, for souls considering to find
incarnations in embryos, in "boycotting" the organisms with
clear genetic defects, while judging these defects on
the clearly visible troubles of health or behavior resulting
from them - whatever the way these troubles may be assessed. This
would give a boost to evolution, by completing natural
selection with a sort of intelligent selection. Even if it was not
very intelligent, it could already have effects.
If such things happened, they should be observable, not only by
their results as faster evolutionary progress in the ancient past
than could be naturalistically expected, but also as still happening
now. There should be many cases of sterility or miscarriage
correlated with circumstances that would justify them on moral
grounds. This should particularly happen in cases of overpopulation,
so as to prevent the risks of environmental crisis that
overpopulation could generate.
But this not what we observe. No such correlation between sterility
(or miscarriage) and any visible, justifiable circumstances could be
observed. Genetic defects keep spreading. Overpopulation happens
unstopped, the same with humans as with animals that reproduce so
quickly that they devastate their environment and all end up in
starvation. Bad people and criminals have no less children (that
often inherit these bad behaviors) than good people.
So many things happen as if the universe was governed by blind
natural forces with no influence from any concious intelligence.
But, is everything really natural ?
Skeptics and paranormal phenomena
The question of the presence of paranormal phenomena (or miracles)
is a very tough debate. The study of these phenomena developed as a
scientific field, that is parapsychology, which came to be
somehow officially accepted as a science when the Parapsychological
Association became affiliated to the American Association for the
Advancement of Science in 1969. Among researchers in this field, a
sort of consensus more or less emerged, that some proofs of
existence of supernatural phenomena are present, but they are
usually very tenuous (with casual exceptions) so that it is not
possible to provide as clear and simple proofs as many skeptics are
usually requiring, but a long study in the field is required to
figure out the existing evidence.
It is very hard to give a proper account of the situation of this
debate (how scientific has the field of parapsychology developed,
what evidence is there and how valid is it), not only because of the
scarcity of the proofs and the hardness to check them, but also
because irrational attitudes are widespread on both sides.
I spent quite a time reviewing the situation of the debate in
France. Here is my
full report but I only wrote it in French too. To roughly sum
up:
There is only one research
organization on parapsychology in France,
Institut
Métapsychique International (IMI), which is
recognized as public interest organization but hardly has any
public support, and roughly no recognition of its views by any
other organization. (So, thorough debates usually have to refer to
the data produced outside France as evidence for psi)
Instead, the views of the skeptics groups
("Zététique") are strongly supported by the academic
system and other official scientific organizations.
The founding organization of the whole French skeptical movement (
Cercle Zététique)
was more and more discredited and finally self-dissolved, as the
leading and finally remaining few members were the most sectarian.
Members who left as they were not happy with its methods formed
other groups, but inherited its ill-informed claims and its biased
methods.
One of them is the
Laboratoire
de Zététique, an official laboratory in the
University of Nice, directed by the founder of the Cercle (Henri
Broch), and officially supported by 2 French Physics Nobel
laureates, both dead but still put forward as honorary members.
The other, less official but the least sectarian and thus most
respectable, thus with the maniest members, is the
Observatoire Zététique,
based in Grenoble. So they have basically the same ideology from
the same guru (Broch) but make a difference by their "soft
attitude".
Smaller groups and independent skeptical webmasters also exist.
The Observatoire made clear its independence to not be mistaken
with the others'sectarism, and prefers to not put forward its
divergence with the other groups, but all is explained in its
forum.
The whole ideology of the Zététique groups is that
they are not interested in the paranormal for itself, but made the
choice to focus on paranormal claims (preferably the most crazy
and incredible ones, or their own caricatural interpretation of
them) as a toy model for a pedagogical project of teaching the
scientific method to a large public. But the practical effect of
doing so is a dogmatic, ideological fight against all paranormal
claims across society through unserious investigations only; and
their discrepancy with science is particularly manifested by their
amateurist, demagogic approach of the scientific method (which one
web site of a small zététique group claims to be
applicable by a child) - while of course keeping the conclusion
fixed by "science".
The Skepticism pole of IMI's student group, whose members had to
remain anonymous to avoid any sort of personal attacks, hold a
blog and made a lot of contributions to many online discussions.
Finally they set up a
web
site to debunk the claims of the Zététique
movement.
By taking the time to review some of the many debates across
forums and blog comments, it is striking how more rational and
convincing (while remaining very polite and civilized) is the
argumentation of these critics, as compared to the visible
dogmatism, sectarism, amateurism and paranoia of the skeptics,
which has been widely discredited anyway as such across any
forum not hosted by them nor by any "officially scientific"
organization.
Ironically, I even happened to find a lot of
similarities between the attitudes of these "skeptics"
and those of Fundamentalist Christianity, as well as with some
aspects of Postmodernism, (both movements which skeptics
officially claim to be radically opposed to), and which
are not shared by mainstream science. In other words, by such
a long, rich and extensive set of various rationality criteria, it
happens that "Scientific Skepticism" falls on the side of
irrationality together with its irrational "best ennemies" of
religious fundamentalism and posmodernism which it is most similar
to, while the whole of mainstream science generally falls on
the opposite side (rationality).
So, the official support to the French skeptics groups and
ideology is all a kind of Emperor's new clothes.
Examples of irrational features and symptoms of irrationality
that are common between skepticism and (at least some of the other
irrational movements such as) religion, pseudo-science and crackpot
movements but differ from mainstream science:
- Their views are more diverse and naturally divergent,
than the scientific community usually is; and some divergence
between this movement and the scientific consensus can be seen
too. Divergence between skeptical movements is particularly
clear in France, even though most of them are based on the same
doctrine written by their guru and founder (Henri Broch).
- For example, the Skeptical Inquirer, numbers 31/3 et
31/4, published an article in two parts, « Global climate change triggered
by global warning » from the Center for
Inquiry (organization for the defense of science and reason),
explaining that IPCC really is the expression of the
scientific consensus, and refuting one by one the main
climate-skeptical arguments. Since the publication of the
first part, and even more after the second, the editors
received lots of letters from unhappy readers arguing that "Skeptics can only be
climate-skeptics", some
even requesting immediate unsubscription to this
journal (Many such readers'letters are in 31/5). Generally,
skeptics forums are full of controversy and conspiracy
theories about global warming, such as cannot usually be
found in mainstream science.
- Their paranoia, that is, an exaggerated and unjustified belief
in their contradictors'irrationality and conspiracies, so
as to dismiss them too easily. Namely, the way
skeptics dismiss any contradiction by assuming without
proper examination, that any opinion different than theirs
(such as belief in afterlife, or claims of having observed
paranormal phenomena) must be due to human error, fraud or
desire to believe something, no matter how implausible such an
explanation can sometimes be.
- Essentialism, mistaking reason with a specific metaphysical
doctrine (ontological materialism); in other words, their
confusion between a specific belief and an irrational way of
thinking, under the same name "faith";
- Misunderstanding of what the existing body of scientific
knowledge is really saying: while they are right to dismiss many
pro-paranormal claims that distort the message of quantum
physics and pretend to deduce much more from it ("quantum
mysticism"...) than what it really says, the usual materialistic
claims by skeptics (that the laws of physics would be complete
enough to exclude the plausibility of paranormal phenomena) are
usually no more compatible with quantum physics either. (In one
argumenting page of the French Association for Scientific
Information (AFIS), I even read the claim that the
laws of physics are deterministic !!!).
- Lack of familiarity with the existing body of
scientific knowledge that they claim to criticize
(parapsychology)
- Lack of serious extended work to develop experiments (instead,
skeptics are a lobby against
experiments on the paranormal, not developing serious
experiments themselves)
- Simplicism, amateurism
- A caricatural view of the scientific method
- Essentialism on their interpretation of the scientific method,
which they present as a sort of spiritual, intrinsic
virtue, a matter of intentionality, to praise and develop
for itself, forgetting that it should rather be undertaken as an
adventure to explore and adapt to a reality that does
not care for us and for how our virtue, sincerity and
dedication. make us deserve to be right.
- Double standard of criticism: blind uncriticized belief of
biased and even sometimes false information from their own group
(whatever agrees with them), but systematic reactions of
hyperbolic doubt towards opposite claims
- Their focus on evangelization rather than curiosity and
research
- Their conformism, assuming that everything is already known
and that anything not conforming to their laws and fundamental
truths would be evil.
- Their lazy confusion between all kinds of opponents
- Ad hominem arguments, with blind assumptions of
the irrationality of opponents to avoid serious rational
debates on the core of the subjects. Opposing views are often
blindly dismissed as merely caused by feelings, such
as desires, conspiracies, delusion or fear.
- A form of collective infalsifiability of a movement, that
consists in remaining insensitive to having members of one's
group convinced by contrary evidence, by excommunicating them as
never having been authentic members of the movement; and
replacing them by naive newbies to continue the movement.
On the other side, unfortunately, the community of
paranormal believers (if we may call it so) did not properly manage
to draw a separation from irrationalists and crackpots as well as
the rest of the scientific community; some still mistake skepticism
with mainstream science, and assume that in order to "fight" their
"ennemies" that are skeptics, they would have to oppose the
scientific community too, by making alliance with all possible other
ennemies of mainstream science.
These ennemies of mainstream science, can be religions or paranoid
cranks with their conspiracy theories accusing scientists to be
dogmatic, close-minded and to censor new (crackpot) ideas.
What they didn't notice is that by developing such alliances, they
are just ridiculizing their points in the eyes of scientists (just
like skeptics are ridiculizing the scientific method in the eyes of
any witness of paranormal phenomena).
Here
is a long explanation that I wrote about how a pro-paranormal
site, which claims to be scientific, fails to stand rationality
standards, and thus discredits itself in the eyes of scientists.
Some aspects of the problem have already been pointed out in an
article in IMI's site:
"To finish with
some clichés: parapsychologists would be marginal,
while skeptics would be the official representatives of
science. And what if it were the contrary ?
(This text is an introduction to the lecture given by Pierre
Lagrange January 28, 2005 at IMI)
I will want to consider two points during this presentation. The
first is how all actors, whether favorable to the study of
parapsychology or against this study, present the debate. In their
view, this debate would oppose a parapsychology at the margins of
science that would be barred from becoming a normal science
because of the opposition of skeptics, integrated with the
institution. But if you look at the situation as it stands, we
notice that it is parapsychology, particularly through the
Parapsychological Association, that belongs to the institution,
while the skeptics are those gathered in associations outside
the establishment. It is therefore not a controversy for the
admission of a discipline but a controversy between scientists
(parapsychologists) and science consumers (the rationalists) who
are skeptical towards the interest for society of obtained
results, as often happens (GMOs, nuclear energy etc.). Thus
why do even parapsychologists accept reports on the controversy
that do not correspond to reality and promote the discourse of
skeptics ? That is an enigma.
But this puzzle does not come alone. In fact, I think it is
related, at least in France to another very powerful speech in
parapsychology circles. Indeed, for decades, endless controversies
always occured following the terms imposed by rationalists.
Thus parapsychologists scramble to meet the requirements of
proof raised by rationalists rather than rely on the normal
scientific practice and seek in the plurality of
scientific practices the allies they would need. And this
discourse on evidence taken from rationalists (that has the
disadvantage of being by definition impossible to satisfy) is
coupled with a lack of real practice of the discipline. However,
it is difficult to accept that rationalists are such a
great danger when we see that parapsychology has scientific
societies such as the PA, newspapers referees and symposia.
Nothing prevents French parapsychologists to use these tools but
the frequent argument is that rationalists prevent their
work. Isn't this argument a bit weak ? Also if you look back in
time there were other times, especially in the early 50s with
Robert Amadou, when parapsychology has created the conditions for
a debate without worrying constantly of the only rationalist
opponents (...) By focusing on rationalists,
parapsychologists today give the impression of wanting to support
them at all costs by refraining to find elsewhere relays to
build an identity for research in parapsychology (...) we may
wonder if rationalists would be an ally for some actors that
otherwise would be obliged to produce facts, to show they have
something to say. But as long as this sterile controversy lasts
they can pose as oppressed and pretend that they are prevented
from producing facts..."
So, finally, what evidence for the paranormal can be found ?
Personally, what I found most striking and meaningful as an evidence
of the existence of spiritual realities beyond our physical
universe, is the study of near death experiences,
A sketch of this evidence is listed there.
Well, I'm a bit ashamed of suggesting this list, because it is far
from accurate: it contains quite a number of redudancies,
exaggerations and flawed arguments. Its way of pretending to be
stronger than it really is, does not support its credibility.
However, some of its arguments are valid.
Here
is an opposite view on the subject (sorry I did not take the
time to check it in details)
As another example, here is an interview
with Cardiologist and NDE Researcher Dr. Pim van Lommel.
(discussed
here). Other interesting interviews can be found in the Skeptiko site.
Unlike antiscientific ideas such as creationism, intelligent design
or other irrationalities, and to the surprise of many skeptics, belief
in the paranormal does not decrease with education. (contrary
to other antiscientific views such as creationism).
Differences in paranormal beliefs across fields of study
Former skeptic
Let us give an example of the irrationality of skeptics.
In any of their argumentative texts (that I know of) against the
reality of the perceptions out of the body in near death
experiences, skeptics have put forward the observation that these
perceptions were "reproduced" by drugs or special stimulations of
the brain, or the like. They presented this as an evidence that out
of body perceptions were hallucinations, by arguing that the
"natural" NDE were the same perceptions as these stimulated
ones, and assuming that these stimulated ones are mere
hallucinations, that would be a "model" of hallucination for the
spontaneous NDEs.
A rational argument based on an observation, when addressing a
competition between 2 worldviews (once assumed that these worldviews
are well-defined enough as concerns the observation being
discussed), is a matter of how it affects the ratio of probabilties
between these views, whatever the a priori ratio of probabilities
that one could give them.
As we explained with classical probabilities, the effect of an
observation on the competition between two hypothesis, consists in a
multiplication of the ratio of their probabilities by p/p' where p
is the probability for the observation to have given the perceived
result under one hypothesis, and p' the one under the other
hypothesis. Thus it can significantly promote one hypothesis, only
if the probability of the oberved result under the other hypothesis
is close to zero.
In particular, in order for the observation of "out of body
sensations" under drugs or specific brain stimulations, to be an
argument against the "real out of body" interpretation of NDEs, this
would require this result to have a probability close to zero under
this hypothesis.
But, under the "real out of body" interpretation of NDE, there is
absolutely no surprise that such experiments on the brain can really
drive the soul out of it and thus produce real out of body
perceptions in this way.
Strangely, when putting forward their experience of stimulated out
of body perception as a "model" for NDE, they did not even consider
any question of how it can be at odds or not with the real out of
body hypothesis. So they did not contradict either that its
probability for their observation can be 1. In fact, all they
showed is their a priori unability or unwillingness to dare
thinking about the view they are claiming to oppose.
Conclusion: skeptics are ridiculizing themselves by their way of
showing that they don't even understand how to assess the weight of
a rational argument based on an observation.
Now, it's a pity that among all testimonies of out of body
perceptions, it seems none has been recorded in "fully controlled"
circumstances in order to remain undeniable, though the situation as
seen by the involved people is already sufficiently clear to
make doubt unreasonable.
Let us just make a few remarks:
- If these perceptions were illusory, there would be much manier
cases when the reported description would be found incompatible
with the real events, than cases of compatibility; however from
some sources I once explored, no such cases were observed;
only the above linked opposite view mentions such inaccurate
perceptions; it would be interesting to make a systematic
(statistical...) study on how often are out of body
perceptions accurate, and how, to see which hypothesis
better fits the body of observations
- Some experiments started to put targets out of reach of
ordinary sight in hospitals for out of body perceptions, so as
to give chances for these perceptions to be proven. So even
if this did not succeed yet, this has chances to succeed
later. But these chances may be not very high as it requires the
disincarned people to view the rooms from quite peculiar
viewpoints. We may develop other scenarii that have more chances
to succeed, such as:
- Putting many cameras that record all events, then ask the
people to tell their testimony before any interaction with the
people involved, then the videos would be used to check the
truth of these perceptions in a rather controlled way
- Making pictures that are not visible for the
human eyes, but only visible in other wavelengths, so
that they would not need to be hidden for their observation to
be accepted as paranormal.
Indeed, the question of afterlife is, in principle, much more
interesting for so many people (with many people on both sides of
the controversy, each conviced to have some evidence on their
side), than the quest for the Higgs boson, and is no less
accessible to scientific inquiry. Therefore I see no reason why the
amount of resources dedicated to the former remains so
ridiculously smaller than the one for the latter.
No reason to dump reason
We don't know how the spiritual universe (where we go after death)
looks like. Is there any physics of what happens there ? Does it
have any sort of physical connection with our universe ? Do visual
perceptions there (light...) have any similarity of nature with the
light of our physical universe (which we do understand by quantum
physics) ? What happens to conciousness there ? Why do some souls
stay here to haunt houses ? Is there a hell ? If yes, what does it
look like, what brings people there, and for how long ?
These are so many questions that are very hard to answer, for lack
of observational data. We have some hints from near death
experiences. In particular, it presents strong indications of the
existence of reincarnation (as some other
sorts of observations can show too), but anyway not immediate
or not systematic, as shown by the meetings with dead relatives,
that show they are not reincarnated at that time.
Also, it says that we are our own judges on our life, that we review
(maybe not in all cases ??) for our instruction, not really as a
"judgement" in some negative sense, but a sort of objective
perception, not focused on judging, but which makes us feel the
effects of our deeds on others.
Maybe, by studying NDE more closely, some progress can be made in
the understanding of afterlife.
However, I would not dare to make any precise claim about
afterlife that would be just a guess not be based on sufficient
evidence, for the following reason.
As it seems, it goes beyond our imagination. Thus, if we try to
imagine something by the mere naive means we usually have at our
disposal, most probably we would have it wrong, as it would be still
very different.
Some authors tried to imagine something. For example, they would
describe a physics for the spiritual universe.
I think such a try is much too risky, because the laws of physics
are mathematically expressed, while spiritual realities have mainly
a non-mathematical nature. They try anyway, but to make it different
from the physical things (as it should), their only method is to
take any well-established fact and claim the contrary.
For example, in particle physics, no known particles can go faster
than light, and the impossibility of information transmission faster
than light has been deduced from special relativity (as time loop
contradictions would come otherwise) ? Then, just because there is a
mystery of non-locality with quantum observations as expressed in
the EPR paradox, let us imagine particles that go faster than light:
such particles must be very spiritual.
Entropy is increasing ? Let's imagine a space where entropy
decreases, such a space must be very spiritual.
Self-proclaimed defenders of reason promote a materialistic
philosophy ? Let's reject reason, this attitude must be very
spiritual.
Everybody is walking on their feet ? Then let's walk on our hands,
this way of walking must be very spiritual.
Everybody is thinking with their heads ? Let's think with our feet,
this way of thinking must be very spiritual.
Well, sorry, I don't believe in the relevance of such extravagance
contests, as any choice of something to deny will be quite arbitrary
anyway, and just taking a known concept to turn it upside down will
remain too similar in nature with its claimed opposite, in order to
be a serious candidate of a breakthrough.
That a careful rational imagination is currently not enough to
figure out things properly, does not give any more credance to
a foolish imagination.
When we don't know something, there might be so many possibilities
that may be or not be imaginable, that a try of a guess not
supported by due evidence would have no decent chances to have
anything to do with the truth. Thus the best way may be to just give
up trying to guess anything, and keep examining the data
(testimonies or other considerations), until some evidence might
appear on some specific questions.
Indeed, the fact that a question currently appears too hard for us
and that we don't currently have readily available data to orient us
to an answer, does not mean that it would be of a radically
different nature, something fundamentally beyond reason. The power
of reason does not have any clear and precise limits, and a question
that appears beyond its reach at a time might turn out to be
solvable later (may it be through testimonies of NDEs, deliberate
out-of-body experiments, or anything else).
Thus, the scientific attitude is to just admit that one does not
know something at a given time, but keep searching in hope it can be
resolved later, may it take centuries (a quite short period of time
comparted to the history of life on Earth).
This is to be strongly contrasted with the religious attitude that
consists, towards any hard or unobvious question, in claiming :
"Alleluia ! this is beyond the reach of reason and science,
therefore a miracle in the exclusive domain of faith and divine
revelation (and more precisely, mine...)"
Notes on spiritual dimensions
Let's just make a few remarks about possible connections between
physics and spiritual realities.
Consider visual perceptions of the environment in out of body
experiences.
Such perceptions would be made possible by the ability of
conciousness to perceive matter. This can be either a perception of
matter, or a perception of physical light, since light and matter
are but two cases of physical systems, well described by our
physical theories, and that can interact together.
Contrary to what some authors might think, I see no likeliness in
the idea that wide perceptive abilities that experiencers may have
of our physical landscape, would be any hint that these perceptions
would take place as viewed from another dimension. Indeed our usual
visual abilities are highly dependent on the presence of the
physical light that "takes a picture" of objects, and makes
this picture perceivable at a distance.
In order to receive this picture, we need to remain inside our usual
3-dimensional space (+1 time dimension). We could not have such a
visual perception from outside this space. Otherwise this would not
be based on our physical light but another, unphysical sort of light
that has no reason to take any picture of our physical objects in
the way that the physical light does.
Inside our space, the out of body visual perceptions of physical
objects, insofar as they are based on physical light, can make use
of many more wavelengths of the electromagnetic spectrum that those
of our humanly "visible" light: it should be possible to perceive
the ultraviolet and infrared too (to name just those
carring most of the energy in usual conditions).
Then, when experiencers "enter the tunnel" or other such spaces
differing from our usual space, suddenly lose all visual perception
from our space. This is coherent with the idea that they left our
space.
But does it mean that they also left all concern of the physical
laws of our universe altogether ?
This is a hard question.
Indeed it still looks like there are still in a sort of space. But
our space-time with its geometry, is a part of physics. The geometry
of our universe (space and time) is in close interaction with the
material contents, according to Einstein's theory of gravitation
(general relativity). We have explained that time is a property of
conciousness. So, if time is influenced by matter, it means that, in
its time perceptions, conciousness is also influenced by the events
of our material universe, as long as its stays inside our space. And
as our space-time is linked with matter in our universe, is time
(and maybe space) outside our universe, following any law or
influence of a similar sort ? As there is a time (and maybe space)
connection between this world and the beyond, can there be any other
sort of physical connection too ?
Conciousness can travel outside our space, as it seems. Still, the
travelling distance seems to be finite, as it takes a finite and
quite limited time to go there and come back to life here. The speed
of this travel might be very fast, but can it be faster than light ?
First, can this question make any sense ? It would make sense if
there was a way to measure distances outside our physical space.
This is far from obvious.
Still, there might be a way to give a sense to this.
In our physical space, there is an available definition of distance,
once admitted a measure of time intervals, based on the fact that no
information can go faster than light: just measure how much time
must be waited on Earth when a signal goes from Earth to Mars and
then back to Earth. This measures the distance between Earth and
Mars.
We can give up much of our physical laws and still make sense of the
question concerning spiritual realities.
But this depends whether the limitation of speed for transmission of
information, still holds in the spiritual universe; or on the
contrary, is it sometimes possible to reliably transmit information
faster than light between locations of our physical space through
parapsychological means ?
Sorry I don't have the answer to this question. I just know that
such a faster than light transmission, would mean to break the
relativity princple (the idea that the speed is relative, as is the
case for physical phenomena) when it comes to parapsychological
phenomena, and such a claim would need some observational evidence
to be supported.
If faster than light travel (or information transmission) as
measured in our space, is possible for souls, then it makes it hard
or perhaps impossible to define any concept of space and distance as
a fundamental character of the universe of conciousness.
But if this speed limitation holds for souls then the concept of
distance can be extended to the universe of conciousness, while the
limitation of speeds by the speed of light would hold by definition of times and
distances, just the same as is expressed in our laws of
physics.
It would make sense to ask "how far from Earth" is some space
beyond, through the "tunnel", as defined by the minimum time it
takes to wait on Earth from the departure of the soul from Earth and
it arrival back to Earth.
As NDEs usually only take mere minutes, and the way through the
tunnel may even be considered shorter, maybe seconds, this means
that the space beyond being visited, is "closer" to Earth, than are
other planets of our solar system (which are several light minutes
away from Earth).
Does it make sense ? Well, not so bad. After all, if that trip drove
us away from the galaxy, there would be too many risks to land on
the wrong planet when trying to come back ;)
Also, reincarnation stories usually speak about past lives on the
Earth, not on any other planet. This does not exclude the possiblity
of life on exoplanets and travels of souls between them, but
distances are so big that it might "waste time" for souls that might
prefer keeping connections with a not too old universe, rather than
making big travels to other planets that would make them skip an
interval of age of the universe (even if they would not have to
wait this time in their own perception, according to the twin
paradox).
Are the "tunnels" specific places inside some larger space (that may
be of dimension higher than 3, though perceptions strangely seemed
to remain 3-dimensional), or do they only exist to provide
"artificial" bridges between otherwise spatially (physically)
independent places (universes), with even no existence of a space
beyond their width ?
There is a lot of work ahead for future researchers...
Part I: moral comparison of science and
religion - Part II: Explaining reason and
science - Part III - Part IV : explaining
and refuting religions
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