>>11116497Same difference as your brain being copypasted in a millisecond right now as you're awake: none.
This idea that you should be unique, have a soul, is just a consequence of the dualistic bullshit coming from religions that literally doesn't need to exist. In reality, your entire being is no different from a file on a computer that can be copied a billion times every which way. The only difference is we don't know how to copy a human mind. Yet. But conceptually they're the same thing.
Our cells are already replaced many times during our lives, even if this happens to a lesser extent in the brain. We're living examples of the Ship of Theseus problem, slightly modified copies of who we were but a few years ago. Entirely different copies of who we were a decade ago. The only difference is, the original parts of us keep dying and the copies take their place, and then the copies keep dying and are replaced by copies of the copies. That's basically what aging is, after all.
It's already happening. Whether you sleep at all or not. And you still can't tell the difference.
But if this is enough to blow your mind, wait till you realize there's no choice or free will. That you're nothing but an elaborate, complex reaction. No different from a rock falling down a cliff, pushed down by the wind. Can't do shit about that either though, so don't worry about it.