Open Mind,
I am wondering if your Feynman quote has got a little distorted. As I understand it, a classical computer can simulate a quantum one, but the execution time goes up exponentially as the number of qubits increase.
To me, perhaps the main lesson here is that QM is so damn weird that it no longer seems that much more weird to include some theoretical ingredient that would be Ψ-friendly. Neoroscience/AI people often seem naive because they ignore real physics and pretend the world is classical. Of course, if pressed, they would claim that they are merely assuming the classical limit - for perfectly justifiable reasons! Even so, I suspect that if they really took on board the weirdness of QM, and the fact that it seems pretty clear that it will never resolve into a 'sensible' theory again, they might open their minds a little.
David |