[ Naegi has to think over his answer for a second, because that's not exactly a question one gets every day -- after all, prior to Johto, everyone he's ever met shared the same world and he had never encountered an alien. ]

It's... big. Over half of it it is covered by water, and there are hundreds of countries on the continents... [ He's not even sure this is the type of answer she's looking for. ] It's a pretty good place, I think.

[ If you disregard the school and just look at the rest, that is. ]