"H-unh. You get so used to the world being in danger, you sometimes forget that it's not like that for everybody. Nice to be from a world where you don't have to constantly get tested, see what you're made of."

"And, this is the second time in two weeks that alchemy is coming up in conversation." Two guesses as to who Jack's other conversation partner was, and they don't count. "It's real, where you're from?" He gestures a hand at Ed. "And Humans have mastered it?" But this would explain Jack's other question about Ed, and why he probably should stay on the back lines.