What makes that “new” consciousness less “you” than the old one? Why do you care if the atoms aren’t the same?
If a perfect copy of me was made, both world be me, and then slowly diverge by different experience. But it doesn’t matter which one has most of the atoms of the body that existed before the duplication (or indeed if any of us was). They’ll both be “me”s with their own perspective and then they’d both continue to exist being “me” from their point of view.
What makes that “new” consciousness less “you” than the old one? Why do you care if the atoms aren’t the same?
If a perfect copy of me was made, both world be me, and then slowly diverge by different experience. But it doesn’t matter which one has most of the atoms of the body that existed before the duplication (or indeed if any of us was). They’ll both be “me”s with their own perspective and then they’d both continue to exist being “me” from their point of view.