From Gregg DuPont, Seattle, Washington, US
Stuart Hameroff and Roger Penrose’s proposal that gravitational instabilities cause “collapse” of quantum wave functions in intracellular microtubules in the brain seems like a leap. To go from that to Penrose’s suggestion that each time a quantum wave function collapses in this way in the brain, it gives rise to a moment of conscious experience is a bit like a physics proof that includes the phrase “then a miracle occurs”. Consciousness is simply an emergent biological result of a brain’s unimaginably complex interneuronal connectome. Just biology, nerves and anatomy engaged in simple functions. No magic required (20 January, p 32).
