in reply to poll ideas quest 2017

You travel back in time to meet yourself. How do you know that future you is actually you?

Please help with the question. I think it needs a little help.

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Re^2: poll ideas quest 2017 (travel time convince)
by Eily (Monsignor) on May 04, 2017 at 08:41 UTC

    I'd probably come up with a great plan to prove that I'm myself, do something stupid while trying to implement it, and instantly recognize my style.

    If this happens to Randall Munroe, his identity would probably be confirmed before he was done explaining how he would prove his identity.