I don't know? Obviously my world and Earth share similarities, but many more differences. I couldn't even say if Earth is an alternate version of my world.

[He's taking this one step at a time. He may have hopped dimensions all the time, but it was usually still his world he was in. Worlds outside his own...that's been something to get used to.]

Honestly, the only world that seems to be closest to mine in terms of similarities is Yuri and Estelle's.