galagazombie posted:

The conundrum with Time Travel is theres basically three ways to do it and it's wrong to act on any of them.

If your working on Terminator 1 "Closed Loop" rules then theres no point in traveling because you always time traveled and nothing will change, you just wasted everyones time (pun not intended).

If your working on Terminator 2 "Going back creates a new future" rules then you shouldn't go back except in the most extreme case of preventing humanities extinction via something like a robo-pocolypse (where everyone will die anyway). Because going back is literally murdering everyone currently alive by erasing the present with a different one with different, not currently existing people who didn't ask to be born. No good you do will ever be outweighed by the blood of billions of innocents on your hands.

If your working on Terminator 3 and onward "You can change history but it will self-correct but only kinda" rules then you shouldn't because you're making a lovely story because these rules don't make any sense and ruin characterization. Unfortunately this is by far the most common ruleset.