2007-02-02 02:08:02 · 4 answers · asked by Anonymous in Arts & Humanities ➔ Philosophy
To get back home to their place in time they started from, and yet to take what they found with them.
2007-02-02 02:11:48 · answer #1 · answered by Friend 6 · 0⤊ 0⤋
It's the idea that one can erase one's existence by travelling back in time and killing an ancestor. But if you did that, then you wouldn't exist in the first place to do the aforementioned deed. Thus a paradox.
2007-02-02 10:21:57 · answer #2 · answered by Ricky J. 6 · 0⤊ 0⤋
Kill your Grandpa? Or, Lay your Grandma? Maybe return so far back that you swirl the tide pool that spawns life and change the evolution of life of earth. Or, does the very fact that time travel exists change our past, even before the first trip is taken?
2007-02-02 11:22:15 · answer #3 · answered by BANANA 6 · 0⤊ 0⤋
I think that when you travel back in time, and do something that effects your future, then that already should have happened in the future, and thus you should know about it already.
I'm not sure, this is just off my head...
2007-02-02 10:12:21 · answer #4 · answered by AmberKid 1 · 0⤊ 0⤋