Actually, I can imagine a world where physical brains operated by interacting with some unknown realm that provided some kind of computation capability that the brain lacked itself, although as neuroscience advances, there seems less and less scope for anything like this (not that I know very much about neuroscience at all).
Actually, I can imagine a world where physical brains operated by interacting with some unknown realm that provided some kind of computation capability that the brain lacked itself, although as neuroscience advances, there seems less and less scope for anything like this (not that I know very much about neuroscience at all).