The way I figure it, I'm from your future, big man. Or another explanation could be you're from an alternate Earth than the one I know you from.

[Which is a bit of a new concept to him, at least as far as actively encountering it, it seeming a bit different than just a vague assumption of another dimension.

At the burning hand threat, John simply grins and holds up his own, which spontaneously becomes engulfed in flames.]

You're not the only one who can do that trick, mate.