"I...just told you." He's probably too stupid to follow this, isn't he? Yeah. He stares at the walls of equations that the kid is churning out at a frankly dead impressive rate, and sighs. Way outta his depth. In just about every respect.

"It's this whole other...other world. Place called LifeAftr. I don't know if you'd call it another planet or another dimension or what, but that's what it is. Did you dream this place before you got here?"

If the kid did - great. That's a convenient jumping off point for an explanation. If he didn't, then Tim just sounds dumb and borderline out of his mind, which is fine because he's like that anyway.