>Shit's getting pretty interesting.
>
>I am admittedly confused about a few things:
>
>In the Pilot, they were in 1999 then leapt to 2007... right?
>
>So, John was born in 1984 (based off the original movie)
>meaning he is currently 15 yrs old, but living in the year
>where he would have been 23 yrs old.
>
>So where is the 23 year old John?
>
>He must exist, since the 40 something year old John is in the
>future fighting robots with is 30 something year old Uncle
>(Derek Reese a.k.a. David Silver).
>
>Shit's kinda weird. Did Kyle Reese leap from the future back
>to 1984 and knock up Sara Connor? Someone please explain if
>you can.

http://terminator.wikia.com/wiki/Predestination_paradox