Someone wrote: Victor wants "mind" to be supernatural, because if it turns out that minds are just extremely complex physical interactions within a living brain, it wipes out a large swath of his religion's basis for belief.
VR: And lots of other stuff besides. If the mind is just a complex interaction of the brain, then I could only be the same person I was when I was in the fourth grade if the physical content of my brain was the same as the physical content of my fourth-grade brain. But I would be surprised to learn if there was a single molecule in my brain today that was in my brain when I was in the fourth grade. So I am, from the standpoint of physics (the true standpoint according to physicalism) a different person from the person who heard in the lunch line the Kennedy had been assassinated, or even who received a Ph.D in 1989, or the one who got married in 1991, or whose shower was interrupted one Tuesday in 2001 to be told the that the World Trade Center buildings had been knocked down by airplanes.
On the assumption of materialism, the evidence I have for believing anything has nothing, ever, to do with my actually believing it. If materialism were to just endanger religious beliefs, that would be one thing. But it does a lot more than that, I am afraid.
Jerry Fodor once wrote:
"if it isn't literally true that my wanting is causally responsible for my reaching, and my itching is causally responsible for my scratching, and my believing is causally responsible for my saying. ..if none of that is literally true, then practically everything I believe about anything is false and it's the end of the world." ( Fodor, A Theory of Content and Other Essays, Cambridge, Mass, Bradford Book/MIT Press, 1990, p. 156; quoted in Stich, Deconstructing the Mind, New York, 1996, OUP, p. 169)
But that is just what materialism, taken to its logical conclusions, maintains.