...Ah. [...Man that's awkward to think about how no one from her world would know it. She considers a moment as to if it's her place, which is weird, because it's ancient history to her. But it's deeply personal for Aang. In the end, history wins out] That's because there's only four airbenders in the world right now. ...Maybe five, but the last one is an infant, so we can't be sure if he's a bender or not.