Board Thread:General Discussion/@comment-74.104.206.83-20130730235710/@comment-22580009-20130925220518

XDex wrote: Commanderchris96 wrote: Yes, if a person from the future comes to the past and if their past selves die, the future being will cease to exist. Its kinda of a paradox effect or a time flux There are many time theories, but the one I generally consider to make the most sense:

By going to the past, they have created an alternate timeline. So anything could happen in said new timeline, (including the person dying) and it would not at all affect the original timeline. With the original timeline being unaffected, the person who traveled back from the future would be unaffected.

In fact, in theory you wouldn't be stopping whatever bad thing was going to happen. It would still happen in the timeline you originally came from, just not in the timeline you were experiencing. "Out of sight, out of mind". I'm pretty sure they used an almost identical explanation of time travel in DBZ.