Slightly more seriously: yeah, I agree that human thinking could happen on other substrates besides human brains, but no instances of that have been reported so far, and we don’t know of any plausible mechanism that would make it happen after the brain the thinking started off in has died, and in any case you’re just yanking my chain so I’ll shut up.
They’ve never yet been known to leave ghosts.
Slightly more seriously: yeah, I agree that human thinking could happen on other substrates besides human brains, but no instances of that have been reported so far, and we don’t know of any plausible mechanism that would make it happen after the brain the thinking started off in has died, and in any case you’re just yanking my chain so I’ll shut up.