That is one of the possibilities, yes. [then, more hesitantly, he shifts his tone to something more soft. he's breaking into some uncomfortable news.] But it can mean other things, too. For example, reading a story in your world and encountering someone from that story here.

[he wants to avoid digging too deeply into existentialism, so he leaves that information as is. usually he doesn't know when to stop providing information, but he's holding back for once, for this human's sake.]

Yes. My home, Earth, didn't have access to anything similar to what I've seen here. It wasn't possible.