... And most of these are all on other planets?

[He has so much to learn ... so many places he could visit....

Potato people ... that sounds the weirdest to him.]

... Aliens.... What do you call an alien? Anyone who's not from your own planet?

[That's how it is on his world, although no one's proven the existence of other planets there. Himself being considered an alien ... that's a really weird and kind of uncomfortable thought.]