Re:Spiritual Machines (Score 1)

There are still fudamental problems: a. Minds/Brains are certainly Large Poincare Systems. But the essence of a digital system is that there is an epsilon below which disturbances of epsilon make no difference. b. Set of computable functions of non-deterministic Turing Machines is equal to that of deterministinc TMs, so it's not clear that mere randomisation makes a real difference to machine behaviours. c. It's unclear what the defintion of a 'non-deterministic machine' might be.