This isn't precisely unheard of. Kind of the exact idea behind parallel worlds would be the difference between you and the other Yuna. We all come from different worlds, some where magic exists, some where it doesn't. Some far in the past or the future from each other.
In theory, all these worlds exist in some kind of space. All stacked on top of each other in metaphysical space. Sometimes the barriers between these spaces can accidentally tear. Or intentionally.
You and the other Yuna, you might come from worlds right next to each other. Where there are only a few differences, a few choices that went a different way, that had huge repercussions.
The full theory's a lot more complicated than that, but I hope it brings you a little comfort.
no subject
In theory, all these worlds exist in some kind of space. All stacked on top of each other in metaphysical space. Sometimes the barriers between these spaces can accidentally tear. Or intentionally.
You and the other Yuna, you might come from worlds right next to each other. Where there are only a few differences, a few choices that went a different way, that had huge repercussions.
The full theory's a lot more complicated than that, but I hope it brings you a little comfort.
-Jack