T-Rex: There's some things I do that nobody else does. Maybe I decorate my room in a particular way! You can put a LOT of things in a room; it seems reasonable we'd all decorate it slightly differently!
T-Rex: And even if some folks decorate the same, they'd still do other things differently!
T-Rex: Just expand the reasoning out to the things I buy, the way I talk and write - they all add up to a unique set of artifacts generated by ME.
Dromiceiomimus: Sure!
T-Rex: And many of these things: photos of my rooms, my fancy hats, my excellent emails that I'm sure you're all archiving - all could last long after I die!
Utahraptor: So what? You leave behind a bunch of stuff.
T-Rex: Not just stuff: UNIQUE stuff!
T-Rex: And if there's a one-to-one link between the stuff I leave behind and the person I was, can't we imagine a future in which Science can be used to follow these links... backwards?
Utahraptor: You want the future to rebuild you based on your stuff?
T-Rex: Not stuff! HISTORICAL ARTIFACTS.
T-Rex: All of which point to a particular person. I mean, I'd then like them to invent time travel and send Future Regenerated Me back in time to me so that we can pal around, but one step at a time, you know? I can wait!
T-Rex: The future's got all the time in the world!