Life may have started in warmish carbon-water chemistry and humans may currently run on meat brains, but there's no reason to assume we have to stay limited to

Life may have started in warmish carbon-water chemistry and humans may currently run on meat brains, but there's no reason to assume we have to stay limited to that sphere. So far as I'm concerned, anything which computes accurately "what I would think" is a copy of me. And anything which computes a mind and is temporally descended from me is me, even if we wouldn't recognize each other.