1 {Paris and Quercus meet Past Paris and Past Quercus on the streets of Bune.}
2 Past Paris: Are you us from the past or the future?
3 Paris: That's tricky. We're younger than you, but we have your memories.
4 Quercus: Actually, I don't remember meeting ourselves like this.
4 Paris: I said it was tricky.

If you met yourself walking down the street...

... that would be rather awkward, wouldn't it?