>>23266713
This is Nietzsche's Eternal Recurrence.
It's also suggestive of a multiverse, because there will be beings who are just like you but made different choices.
But none of this mitigates the fact that *this* being will cease to exist, and if it recurs will have no meaningful connection to past occurrences.
So death remains a reality, and this theory is more like the soul passing between material bodies through reincarnation.