The Terminator Franchise is just that: it's a franchise. It doesn't make any sense, they just want to keep making money off of it. In order to do so, they keep having to tie in previous stories into the new story, be they movies or television shows.
First thing we have to verify is that we are avoiding paradoxes by
going with the "alternate timeline/universe" literary device here.
This being science fiction,
science goes first (unlike Star Wars, which isn't really science fiction, but it's fun). No paradoxes allowed. When a person or object goes into the past, he is actually not going into his own past, but rather another past of a different universe. The assumption here is that each and every universe which can be, is. A man who goes back in time to kill his own father does not actually kill the man who fathered him before he was born, or he would not have been born to kill him. He actually enters an alternate universe where the situation exists that this man is killed
. Time travel is a misnomer here. What we're really talking about is
interuniversal travel.
So here's my primary issue: why would anyone in the future (man or machine) who stays in
the future care to send someone into the past? Why did Skynet remain in a universe which will not be affected by the assassination missions of the terminator robots? It would make more sense if Skynet uploaded itself into its own
cybernetic unit, and it went into an alternate universe for the purpose
of creating a machine utopia.
In the comic book industry, often times a writer would make a good
story, or have a good idea about their characters, but it didn't fit
into the regular story thread. They would then make comics called
"what if" or "alternate universe" issues. So what each Terminator
movie is, is a different "what if" scenario in a particular universe.
The only thing that is loosely tying them together is that the story follows
a similar "John Connor" character in each variation. The creation of
the Sarah Connor Chronicles has only complicated the franchise's issue even more,
with different variations of "what ifs".
The problem isn't the multiple rehashing of the same plot. The problem is that they're trying to tie them together. They're trying to present a multiverse as a universe. I liked Terminator 3 the best. Not because it was a great work of fiction, or that it made a lot of sense from a scientific standpoint. It was fun! I just think it would have been better as a stand-alone movie. Of course, it would have had to have been a little longer to include some more backstory, but it would have greatly improved the plot.
My conclusion is that "time" travel is total bullshit, especially
where someone can go into the past, fix everything, and come back again. It's not science fiction at all, but rather fantasy.
[Co-authored by Andrea_TheNerd]