These are excerpts and elaborations from my book "The Nature of Consciousness"
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A General Property of Matter The Italian mathematician
Piero Scaruffi offered his variant on
panpsychism (A simple theory of consciousness, 2001). I am conscious. i am made of
cells. Cells are made of molecules. Molecules are made of atoms, and atoms are
made of elementary particles. If elementary particles are not conscious, how is
it possible that many of them, assembled in molecules and cells and organs,
eventually yield a conscious being like me? Many attempts have been made
at explaining consciousness by reducing it to something else. To no avail.
There is no way that our sensations can be explained in terms of
particles. So, how does consciousness
arise in matter? Maybe it doesn't arise, it is always there. No matter how detailed an
account is provided of the neural processes that led to an action (say, a
smile), that account will never explain where the feeling associated to that
action (say, happiness) came from. No theory of the brain can explain why and
how consciousness happens, if it assumes that consciousness is somehow created
by some neural entity that is completely different in structure, function and
behavior from our feelings. From a logical standpoint,
the only way out of this dead-end is to accept that consciousness must be a
property of the particles that make up my body. When we try to explain
consciousness by reducing it to electrochemical processes, we put ourselves in
a situation similar to a scientist who has decided to explain electrical
phenomena by using gravity. Electrical phenomena
can be explained only if we assume that electricity comes from a fundamental
property of matter (i.e. from a property that is present in all matter starting
from the most fundamental constituents) and that, under special circumstances,
enables a particular configuration of matter to exhibit
"electricity". Similarly, if consciousness
comes from a fundamental property of matter (from a property that is present in
all matter starting from the most fundamental constituents), then, and only
then, we can study why and how, under special circumstances, that property
enables a particular configuration of matter (e.g., the human brain) to exhibit
"consciousness". Any paradigm that tries to
manufacture consciousness out of something else is doomed to failure. Things
don't just happen. Ex nihilo nihil fit. Consciousness cannot simply originate
from the act of putting unconscious neurons together. It doesn't appear like
magic. Conductivity seems to appear by magic in some configurations of matter
(e.g. metallic objects), but there's no magic: just a fundamental property of
matter, the electrical charge, which is present in every single particle of
this universe, a property which is mostly useless but that under the proper
circumstances yields the phenomenon known as conductivity. Particles are not conductors
by themselves, just like they are not conscious, and most things made of
particles (wood, plastic, glass, etc. etc.) are not conductors (and maybe have
no consciousness), but each single particle in the universe has an electrical charge
and each single particle in the universe has a property, say, C. That property
C is the one that allows our brain to be conscious. It is not that each single particle is conscious or that each
single piece of matter in the universe is conscious. But each single particle
has this property C which, under the special circumstances of our brain
configuration (and maybe other brain configurations and maybe even things with
no brain) yields consciousness. Just like electricity and
gravitation are macroscopic properties that are caused by microscopic
properties of the constituents, so consciousness may be a macroscopic property
of our brain that is caused by a microscopic property of its constituents. Just like electrical phenomena can only be
reduced to smaller-scale electrical phenomena (all the way down to the
electrical charge of each single constituent), so consciousness can only be
reduced to smaller-scale conscious phenomena. Property C has not been
found by Physics for the simple reason that Physics was not built to find it:
Physics is an offshoot of Descartes' dualism, which strictly separated mind and matter and assigned
Physics to matter. Newton's Physics was built to
explain the motion of bodies, and that is what it explains. It did not find
elementary particles and it did not find entropy. It was built to explain
bodies. Relativity was built to explain the constant speed of light,
electromagnetism and gravitation. And that is what it explains. It did not find
quarks either, because it was not built to study atoms. Quantum Theory, on the
other hand, found quarks, because it was built to study the atom. But it did
not find black holes, because it was not built to study gravitation. Scaruffis theory is neither
dualistic nor materialistic. Like
dualists, he admits the existence of consciousness as separate from the
physical properties of matter as we know them; but at the same time, like
materialists, he considers consciousness as arising from a physical property
(that we have not discovered yet) that behaves in a fundamentally different way
from the other physical properties. So in a sense it is not a
"physical" property, but it is still a property of all matter. His is an identity theory, in that he thinks
that mental corresponds to neural states, but it goes beyond identity because I
also think that the property yielding consciousness is common to all matter,
whether it performs neural activity or not.
What made Descartes believe in dualism is the unity
of consciousness. But electrical conductors also exhibit a unity of
electricity, and nonetheless electrical phenomena can be reduced to a physical
property of matter. The main problem is the lack
of an empirical test for consciousness. We cannot know whether a being is
conscious or not. We cannot "measure" its consciousness. We cannot
rule out that every object in the universe, including each elementary particle,
has consciousness: we just cannot detect it. Even when I accept that other
human beings are conscious a) I base my assumption on similarity of behavior,
not on an actual "observation" of their consciousness; and b) I
somehow sense that some people (poets and philosophers, for example) may be
more conscious than other people (lawyers and doctors, for example). The trouble is that our mind
is capable only of observing conscious phenomena at its own level and within
itself. Our mind is capable of observing only one conscious phenomenon: itself. A good way to start would be
to analyze why consciousness is limited to the brain. Why does consciousness
apply only to the brain? What is so special about the brain that cannot be
found anywhere else? If the brain is made of ordinary matter, of well-known
constituents, what is it that turns that matter conscious when it is configured
as a brain, but not when it is configured as a foot? Back to the beginning of the chapter "A Physics Of Consciousness" | Back to the index of all chapters |
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