The so-called space-time well uses gravity to create a nearly closed-loop space in the universe, and creates a huge difference in the flow of time between the inside and outside of the well without accelerating to nearly the speed of light.
Inside the well, the reincarnation of life never ends, only for a moment outside the well.
Two twins grew up in the same environment, encountered the same people and things, and made the same choices. So are they two people or one person?
Perhaps this is the beginning of this story, the truth of rebirth.
It's a cliché name, but it's definitely science fiction.
