If I were guessing, I would say there are more dimensions than that. New worlds keep cropping up, don't they? There is even the possibility of worlds within worlds.

[This really is endless.]

It's nice to meet you, Arsene. [Her tone softens, almost shyly.] I'm afraid I'll talk about the various worlds and dimensions quite a bit. You're right, it is fun to think about, but terrifying to analyze too closely.