[ Thank God he decided not to wear a white tux with a red carnation in the lapel, it might have really cemented Quentin's idea that Nate is in fact Harrison Ford's best role to date. ]

I dunno. A lot of them look traditionally ancient, and I haven't seen any strange properties yet.

[ There's an unspoken emphasis on yet. ]

...D'you think we give off some kind of energy signature beyond the whole- [ Nate gestures at his (for once) clothed chest. ] Light show? If they're specific to us then it might be quantifiable.