"...I guess I'm not sure," she says thoughtfully. "It might depend on why people puke in zero-g."

"Yeah. And whether people puke in airplanes because it's like being in zero-g or for some other unrelated reason."

"Yeah. Maybe we'll learn that kind of thing at school."

"If not we can look it up probably."

"Mhm. I wonder what it'll be like, there."

"Interesting, I bet."

"Well, yeah, but I mean specifically."

"What is it like to be a battle school?" he says, and giggles.

"Huh?"

"—oh, it's something I heard from my dad, there's this philosopher or something who said that it's impossible for a person to know what it is like to be a bat—"

"Ohh. That makes sense."