I see...and mankind has observed these all changes through science as well? How our knowledge of the celestial bodies has changed. [He takes out a piece of paper on his side, and begins to write down as much as Sanae had been telling him. It's mostly for his curiosity, and he is a note-taker, bad handwriting notwithstanding. But who knows? Perhaps the day may come when such knowledge will be useful. How else are the Otherworlders to return home, if not through space?]

Ah, but you mentioned travelling to the moon. So, the future has..."space ships" and "space travel" as well? [He's actually heard of travelling through space from Roxas, actually.]