[ Hundred is the word that rings out to him. Marty isn't a history buff or anything, but he can guarantee that no, they just started doing that recently. Not a hundred years ago, or a few hundred, or whatever. That's fucking nuts.

This guy's story is an absolute clusterfuck, and Marty doesn't understand anything. Universe powers, other universe powers, other realities, jesus. if Doc was here, he would be going batshit crazy. Or, at least, he could see him going batshit crazy anyway. Marty probably looks absolutely dumbfounded, to be honest. ]

So you're tellin' me that humans have been travelin' through space for years? What year are you from?

[ He's been told there are people from the past and the future here, which is...confusing. Really, really confusing. ] 'Cause I'm from 1985. I think the first guy went to the moon like, twenty years ago or somethin'.