"You never know what might be useful again later." Vax didn't know from computers at all, but he'd had them explained to him. He still wasn't sure he really understood them, but it wasn't a whole lot stranger than magic he supposed.

"We get to travel to other places once in a while - we call them 'Otherworlds.' None of them has been home to any of us yet, and it's only for a few weeks. But I'm sure some of them have got computers."