"Oi," Ianto said, elbowing the other lightly in the side, laughing slightly and shaking his head. "I may be from the past, but I'm better than a caveman. We do have electricity and cars and the internet and everything. It's not like...y'know, the greatest invention yet known to man is fire or anything like that."

He paused for a moment, before shrugging. "No, it's alright. I mean. It's pretty cool, everything here. Aliens and space travel and the sort." He glanced sideways at the other boy, suddenly realizing something. "So wait. If there are aliens here, that means that...there are humans out there on alien planets? There are people out there that live in space? That there are people out there that aren't from Earth?" He should have made the connection a while ago, but for some reason it didn't occur to him until just then that that was even a possibility.