If ‘you’ lived in the 30th century you’d have different memories, at the very least, and thus ‘you’ would be a different person. That is to say, you wouldn’t exist.
On the other hand, if the brain is reasonably substrate-independent, you could be exactly the same person if you were made out of helium.
If ‘you’ lived in the 30th century you’d have different memories, at the very least, and thus ‘you’ would be a different person. That is to say, you wouldn’t exist.
On the other hand, if the brain is reasonably substrate-independent, you could be exactly the same person if you were made out of helium.
A world different enough from this that you were made out of helium would probably leave you with different memories.