[GruelThePurple]

Isn't there a theory, based in Quantum Physics/Mechanics, that it is possible to time travel via Quantum Foam and that the "Grandfather Effect" is not a concern due to the variableness of multiple time lines and co-existant "times"?

I heard some of this on a Discovery Channel program about time, travel, and power.

While this theory is highly debateable, the current limitations have to do with the sheer amount of energy required to perform such a feat. Apparently, you need more energy that what our Sun currently produces...

Anymuch, I mention this as from one frame of reference, you can travel in time and not mess up the time line you came from.

Real or not, it hurts my head to try to think how it actually works...