Buffy and Anya in “Superstar”

But someone could wish the whole world to be different, right? That's... possible?

Sure. Alternate realities. You could, uh, could have, like, a world without shrimp, or with, you know, nothing but shrimp. You could even make, like, a freaky world where Jonathan's like some kind of not-perfect mouth-breather, if that's what's blowing up your skirt these days. Just don't ask me to live there.