[Max's expression sobers as he watches Jon, starting to understand that he's serious.]

[He takes a moment before he can sort out his thoughts. When he speaks, it's not a deluge of words - it's slow, like he's trying to process it as he comes out of his mouth, like he can't believe he's talking about this.]

How long have they... do they know we can do this? That we can go back to the right time, the right place...? I mean, time travel, Jon.

You know how crazy that sounds, right? After all this?