[He chuckles.] Going home and trying to change things hadn't really occurred to me. I spent too long as a Time Agent having it drummed into me about not crossing your own timeline. But if there's a possibility they're not real futures... Well, that makes them fair game, doesn't it!
As for what actually happened here, I doubt we'll ever know. They're not exactly keen to impart information to us, are they? Though if it necessitated moving us all again, my money's definitely on something from the outside.