"I... don't know how to tell you this, but... not everyone here is from the same reality?" he explains. "Some worlds seem to have some things in common, but then you get into it and details are wrong. Like. Some worlds have magic or superpowers. But even worlds that seem the same... like, my friend Neal is from New York too. And he's also from a New York with no magic and no superpowers. But... in my world, my father is very famous. Very. And Neal's never heard of him. He doesn't exist there. Or, if he does, he never got..." His voice trails off, like he's said too much. "Famous," he finishes, and it's clearly not the word he was originally going to use. "So what else is different, right? We can't know. But the point is, your world can have New York and Central City and mine can just have New York."