I think it’ll be possible to create inorganic ‘brains’ that have human-like subjective experience, because to think otherwise reduces to some form of vitalism, but I doubt we’ll be able to move specific individual consciousness across technologies.
Are you sure about that? That does not sound right to me.
Though, saying that, OP’s point about needing a human body to have human experiences may be correct if souls get a new human body in the afterlife - I’d just assumed liberated souls, like ghosts, had no physical form.
I'd say that the human body is just one very sophisticated I/O device.
The fact that we can't replicate it now doesn't mean that it wouldn't be possible after a millenia of engineering, even though this replacement device might as well be a partially organic one in the end.
That said, there are no guarantees that we don't fall into a sort of "dark age" of no more growth/research into any new directions, or don't wipe ourselves out altogether.
