Quote Originally Posted by Iyaman
I think that by altering things in the past, we switch over to a different parrallel universe. Like jumping to a different 5th dimentional course.
The universe is constantly "splitting" into every possible outcome for every possible decision and every possible random occurence. There are infinite numbers of parallel universes created every instant. In one parallel universe the information is sent back, and in another it isn't. Because they both exist, no paradox is created --- each timeline is internally consistent.