Bowwwww before my example:

Bob (Which represents bob of the instant that this is happening) lives in HouseA.

Mark lives in HouseB with Mary.

Bob goes back in time five minutes.

Bob is still Bob, though he's in a different segment of time then what he began at, and so he has been altered slightly.

So.. imagine this:

(Bob)HouseA goes through time -- (AlteredBob)HouseA

That's pretty much how it would be for then.. okay?

Now lets say that Bob is the son of Mark and Mary.

Bob goes back in time to before he was born and kills mark.

So: (Bob)HouseA goes through time -- (AlteredBob)HouseA moves to HouseB containing Past(Mark&Mary) and kills Past(Mark) which removes Past(Mark) from the picture.

(AlteredBob) Returns back to his normal time and: (AlteredBob) becomes (AlteredAlteredBob)HouseA while he lives nearby (Mary)HouseB.


why is he still alive? Because he isn't the original Bob to begin with, AND he went outside of the formula and altered it by returning elsewhere within it, which in turn meant everything after the incident caused changes throughout time, instantly, and when Bob returned back to the future he was still present since he was the altered version, and therefore not truly linked to the time he left.

Too complicated for you?