[joeberon]

> Because I think we both agree they're solidly physical in the sense that a "thought" can be reduced to chemical signaling.

I don’t agree with that. I think there is an inseparable spiritual element that justifies the subjective experience.

For the QM part, that still does not mean that ontologically the probabilities have a physical reality. Google “interpretations of quantum mechanics”, we have very little idea of what quantum mechanics actually means yet. We can set up the problems and do the maths but no one even knows what exactly it means to do a measurement (again Google “measurement problem”). I am an expert in quantum mechanics (it is my job) so I would be happy to answer questions about it in the morning.