Penrose addressed this (poorly, IMHO), but it gives a good idea as to his approach: http://en.wikipedia.org/wiki/The_Emperor's_New_Mind http://en.wikipedia.org/

Penrose addressed this (poorly, IMHO), but it gives a good idea as to his approach: http://en.wikipedia.org/wiki/The_Emperor's_New_Mind http://en.wikipedia.org/wiki/The_Emperor's_New_Mind