Yes. I gather you understand this world is a sort of...nexus of worlds? A meetingplace?

[She smiles and takes out her sketchpad, doodling a bit, starting with a line.]

I believe the idea is that every decision changes the world. So for every possibility...things change. Different versions. [She draws a fork in the line] Like this. If you went left down the fork, different things would happen than if you went right. These other worlds are sort of like that. Maybe one or two things are different, maybe many. Perhaps in one world, a battle was won by the other side, or Sakoku never happened, or many other possibilities.

Do you understand the idea?