These are excerpts and elaborations from my book "The Nature of Consciousness"
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Quantum Idealism Von Neumann’s analysis of the collapse of the wave is also the basis for idealist
theories that border on Eastern philosophy. For example, the Indian physicist
Amit Goswami criticizes materialism (the view that consciousness is a material
phenomenon, and that matter is the only substance) and endorses idealism (the
view that matter is a mental phenomenon, and consciousness is the only
substance). Goswami's idealism is based
on a simple postulate: that consciousness collapses the quantum wave, as Von
Neumann originally claimed. Goswami
claims that this brand of idealism has no problem with some notorious quantum
"paradoxes". Basically, the "oddities" of Quantum Mechanics
are in our mind, not in the world. For example, Schroedinger's cat could not possibly be both alive and dead in the real world, but
it can be in our minds. Paul Wigner extended Von Neumann's meditation by asking: if a friend tells me what she observed, at
which point did the wave collapse, when the friend carried out her observation
or when I carried out the observation of my friend telling me the result of her
observation? If one thinks that the friend collapsed the wave, then the problem
is that two friends observing the same phenomenon would both collapse the wave,
and possibly observe opposite outcomes. If one thinks that I collapse the wave
when I listen to my friend, then my friend's knowledge depends on her talking
to me. Goswami explains Paul Wigner's dilemma by arguing that there is only one consciousness, only one
subject, and not many individual, separate subjects. There is, ultimately, only
one observer. He also cites the non-locality of Quantum Mechanics as evidence
that there is only one consciousness in the universe. Goswami credits
consciousness with a deliberate act of determining reality: consciousness "chooses"
(not just picks up) the outcome of a measurement. Goswami thinks that a mind
is made of ideas or thoughts, and he envisions these mental objects as fully
equivalent to the material objects (the particles) studied by Quantum
Mechanics. Thus they must obey the same Physics, i.e. the same theories about
uncertainty, measurement and non-locality. He views the brain as both a quantum
system and a measuring apparatus. The possibilities of the quantum brain are
unconscious processes, and the equivalent of the physical observation is the
one unconscious process that becomes conscious. Consciousness
"chooses" which unconscious process becomes conscious (just like it
"chooses" the outcome of any other measurement). Consciousness
"chooses" its own conscious experience. Back to the beginning of the chapter "A Physics Of Consciousness" | Back to the index of all chapters |
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