You can keep a car going forever. Just replace what is not working well. Will it still be classic? Probably not but it’ll work just fine.
There is still the Ship of Theseus argument - if we replace everything in your body, is that still you? I’d argue yes - as long as the memory is intact and the brian is alive - producing and consuming signals throughout.
I guess - a test could be, can you be “awake” through any procedure done to your body? (if we had advanced ways to block all associated pain with the surgery)
Perhaps there’s no need for that as long as the brain can be kept alive in a state like being in a nap.
Sure, but not by just replacing the motor oil. Which was my point.
You also can't replace "everything in your body" without replacing the brain. Which, given that the prevalence of dementia increases every year somebody lives, and given the general well-known cognitive effects of ageing, is a key problem here. And that also ignores that we can't swap body parts like we can swap car parts, even if we had infinite spare parts.
There is still the Ship of Theseus argument - if we replace everything in your body, is that still you? I’d argue yes - as long as the memory is intact and the brian is alive - producing and consuming signals throughout.
I guess - a test could be, can you be “awake” through any procedure done to your body? (if we had advanced ways to block all associated pain with the surgery)
Perhaps there’s no need for that as long as the brain can be kept alive in a state like being in a nap.