A time paradox? Well, I guess if I told you something about the future, and then you acted on it and changed the future, that could... [Okay, he shouldn't be, but he's seriously thinking about this.]

Well, I guess... paradoxes are impossible. That's why they're paradoxes. So either that won't happen, or we're from parallel timelines and no matter what we do in our presents it will only change our futures.

... right?