Thread:Squirtlesmind/@comment-25524244-20160607104146/@comment-33161724-20160908151409

I don't know.

Also, there are only 2 of me.

You'd just open up a portal to another dimension where it APPEARS that you went back in time, but you actually entered another universe that is set back by X time.

If you shot yourself there, you would cease to exist in both your original and the new universe.

If you shot their version of you, you'd just shoot their version. No paradoxes, no time travel, just different conditions.