"Oh, you can still do that, for fun, if you like. What do they call it? Reverse engineering? Only you haven't got to, if you don't want to." Another of those small sweet laughs. "There's so much here to truly learn, it might be a waste of time to reinvent what's already been invented. Have you got a wand yet, Jeff?" He'd told her at his Sorting that she could call him Jeff, and she certainly wasn't going to call him Mr. Universe, a name that struck her as a drastic and unfortunate misnomer.