A space traveller? Now I'm really hearing something surprising.

[ He understands the concept of things like space, planets, terrestrial and celestial bodies. He understands, loosely, the concept of space travel. He was never very into it, however, so the look he's giving Erwin is equal parts skeptical and curious. ]

I mean, if he built you that, he's got to be brilliant. Is he Armin brilliant, or Hange brilliant, though?