Check out the “odd couple’s” (I suspect a professional euphemism for looniness) freely available update Consciousness in the universe: a review of the ‘Orch OR’ theory with accompanying interview (first video). I heard Penrose speak at Imperial College around the time The Emperor’s New Mind: Concerning Computers, Minds and The Laws of Physics was released. I’ve never had the pleasure of hearing Hemeroff in person.
manwithoutqualities 