BobBob wrote on Feb 19, 2017, 18:16:
I get the whole loop thing. But the moment he gave her the phone # means that she didn't have it, meaning at some point she saved the world without the phone #. There must of been a 'primary timeline' before the causal loop was created, otherwise it would cause a paradox (meaning, it couldn't happen .. as paradoxes prevent things from happening, they aren't just a matter of fact issue). Also, the fact she didn't know the phone # meant she existed in a linear timeline (at that scene) up until the point of knowing it, for her past self can know it. Spin... I'm sure I'm overthinking this. When I write a story involving time travel, my main character is always aware of paradoxes and creating divergent timelines, going through great trouble to not disturb an existing timeline, create paradoxes, spawning divergent timelines, or causing total annihilation.
Super secretI don't think you are over thinking -- it is simply ALWAYS the case in time manipulation stories that you have this situation. Again, compare to the Terminator. Without Kyle being sent back in time, John Conner is never born, hence the humans can never defeat Skynet to send Kyle back. There is no primary time line to the defeat of Skynet without John Conner. Who can't be there unless they defeat Skynet. It is a total paradox. I'm not saying you are wrong about there being a plot hole, only that these types of plot holes are always present in time manipulation stories.
I guess you might argue her intent to call is enough to change a "potential" future but I think that is really stretching it.
“Extinction is the rule. Survival is the exception.” -- Carl Sagan