Comment on Penrose's book Shadows of The Mind4. The Quantum Promissory Note
4.1 Having proved that Turing machines cannot account for mathematical intuition, Penrose develops the idea that Quantum Mechanics will provide a solution. QM is the crown jewel of modern theoretical physics, an endless source of insight and speculation. It shows extraordinary observer paradoxes. Consciousness is a mysterious something human observers have, and many people leap to the inference that the two observer mysteries must be the same. But this is at best a leap of faith. It is much too facile: observations of quantum events are not made directly by human beings but by such devices as Geiger counters with no consciousness in any reasonable sense of the word. Conscious experience so far as we know is limited to huge biological nervous systems, produced over a billion years of evolution.
4.2 There is no precedent for physicists deriving from QM any macrolevel phenomenon such as a chair or a flower or a wad of chewing gum, much less a nervous system with 100 billion neurons. Why then should we believe that one can derive psychobiological consciousness from QM? QM has not been shown to give any psychological answers. Conscious experience as we know it in humans has no resemblance to recording the collapse of a quantum wave packet. Let's not confuse the mysteries of QM with the question of the reader's perception of this printed phrase , or the inner sound of these words !
4.3 What can we make of Penrose's Quantum Promissory Note? All scientific programs are promissory notes, making projections about the future and betting on what we may possibly find. The Darwin program was a promissory note, the Human Genome project is, as are particle physics and consciousness research. How do you place your bets? Is there a track record? Is there any evidence?
http://psyche.cs.monash.edu.au/v2/psych ... baars.html
Penrose replies to the comment above abut his book Shadows of the mind
http://psyche.cs.monash.edu.au/v2/psych ... nrose.html
Online papers on consciousness, part 3: Science of consciousness
http://consc.net/online3.html#cognitive