I don't understand it when people use words like "necessary" when talking about fiction and entertainment.
Poor choice of words on my part. More like, why is this being treated as the only solution?
Creativity and storytelling is not some onerous burden where people only do what they're forced to do. It's an opportunity to play with ideas, to explore, to experiment, to have fun. You can have as much fun exploring something entirely new as you can revisiting something familiar, or doing any mix of the two. It makes no sense to say that if some stories successfully did things a certain way, that somehow requires every other story to do the exact same thing. That's like saying that all ice cream has to be chocolate, or that all dessert has to be ice cream, or that all meals have to be dessert.
We had decades of movies and shows that did what you describe. So why not try something else for a change?
Using your ice cream analogy, is the
Star Trek franchise like an ice cream parlor, where a wide variety of stuff is served, or is it like a specific item on the menu, where orders of it will usually only vary slightly from the baseline?
To me, it's honestly the latter. When I go to watch something called "
Star Trek" I'm going to watch something that another one of the "
decades of movies and shows," as you put it. When I don't want to, I pick something else. The Abramsverse basically remade
Trek in
Star Wars's image. Now I like
Star Wars an awful lot (in fact, of the two franchise, I think that
Wars is currently subjectively and objectively better), but when I want to watch something like
Star Wars, I pick the real deal.
It didn't help that the marketing for the '09 movie wasn't very helpful in pointing out the franchise's new direction. It was all about how we were getting the origin story, the never-before-told story, etc. I pretty much went in thinking that this was a prequel continuation of the TOS TV show and previous movies. So, you may imagine that it was a rude shock when it turned out to be anything but.
And on top of that, I don't think they're good movies period (putting continuity to one side). Compare to Abrams' work on
Force Awakens. Even taking into account the years in between and improvements in special effects, I don't think there anything in the '09
Trek movie and
Into Darkness that
Force Awakens didn't do better. (As an example, the characters feel more like real people and have better development over their one movie than anyone got in the first Kelvin
Trek movie, maybe even the first two combined -- although Kelvin Kirk did do the same character arc twice, though.)
We've already discussed two possible explanations right here on this board. One is my idea that, if the same wormhole opened up in both 2233 and 2258, there's no reason to believe it couldn't have opened in earlier times as well. And since the wormhole's ingress was right next to a supernova, then its egress in the Kelvin timeline could've been spewing out vast amounts of energy and matter into the distant past of that timeline, having who knows what effect on its stellar and planetary evolution. Life on Earth has been affected in various ways by astronomical events -- nearby supernovae have caused extinctions and opened niches for new life to evolve, and cosmic dust clouds could've affected the brightness of the Sun and caused mini-ice ages and the like. On a smaller scale, maybe the sight of the wormhole opening in the heavens and shining down bright light could've caused a religious upheaval on a given world and caused its cultural development to happen differently. Maybe even the gravitational shifts of the wormhole's appearance could cause starships to travel on slightly different courses (cf. the Stellar Cartography scene in Generations) and cause people to get to various places earlier or later and thereby not meet people they met before, or get killed by an accident they avoided before, or whatever. There are a lot of ways both large and small that an errant wormhole bouncing around in the past could hypothetically have altered history.
Then there's Idran's idea (I think) about the past happening differently because future time travel events that affect the past don't happen in the same way. We've seen this kind of retroactive causality canonically in TAS: "Yesteryear" (where Spock was erased from the past by his failure to do something in the present) and ENT: "Storm Front" (where the Na'kuhl had traveled back to a version of WWII that had already been altered by a time travel they hadn't yet undertaken). So it's already an established possibility in Trek canon. This is probably a more solid explanation than my hypothesis.
I think I like the second model slightly better, since the earlier one seems to have more theoreticals and assumptions that we wouldn't get from the onscreen evidence, while the latter addresses question that would arise, since those loops were broken, to some extent, so we have evidence onscreen that there could be changes to the past retroactively. The former also doesn't seem to work quite as well at addressing why some things are the same, while others are radically different in a way with no rhyme or reason.
Even Pegg's notion isn't entirely unfounded. Some quantum physicists put forth the idea that
retrocausality -- events in the present being influenced by quantum waves propagating back in time from the future -- may be an integral part of physics in real life. Our common-sense perception that causality can only go forward may simply be wrong, like so many of our common-sense intuitions have been proven wrong when it comes to quantum physics, relativity, and time. It may be that causality naturally goes in both directions anyway.
In general, when it comes to quantum physics, if you can't wrap your head around an idea, that's a good sign that it's worth taking seriously. If an idea just reaffirms your preconceptions rather than blowing them out of the water, then it's probably wrong. Because the human brain and instincts are evolved to deal with macroscopic, classical phenomena, and that means we have no intuition whatsoever for understanding quantum phenomena.
I don't think it's bad to bring real-world info into
Star Trek, but
Trek has always broken real life rules (warp drive, transporters, lots of alien culures, etc.). So, I think the question is, does Pegg's idea fit within the fictionalized science that the franchise has built up?
In "Yesteryear," when Spock went back to reset the timeline to his own, he responded to Thelin's "Live long and prosper in your reality" with a reciprocal wish that Thelin thrive in his own. So Spock believed that the "Yesteryear" timeline would continue to exist even after he returned to his own.
Interesting point, should we be taking this literally, or as a general "Wish you well wherever you end up after this is sorted out?" To the best of my knowledge, Spock's practical experience with time travel to this date did not work off the idea that alternate timelines would continue to exist after the original was fixed -- in fact, most of the TOS time travel episodes went out of their way to indicate that only one could survive, like "City on the Edge of Forever" and "All Our Yesterdays" (at least to the extent that time travel keeps the travelers in the same timeline).
Now, Spock would be vindicated by the fact that different quantum realities are formed by the different possible outcomes in life ("Parallels" [TNG]), meaning that several copies of Thelin's timeline would hang around.
But, since "Parallels" points out that this knowledge of quantum mechanics was still very theoretical even during the 24th century, I seriously doubt Spock would be aware of it.
(Since the Guardian's time vortex is described as "the focus of all the timelines of our galaxy," is it possible that "Yesteryear" was written with the assumption that Spock and Kirk had accidentally slipped into a pre-existing timeline instead of changing their own? The "timeline focus" idea wasn't established in the original Guardian episode, so it seems an odd statement to put here, esp. since it doesn't seem relevant to the story and is more complicated then telling the audience that the crew is using a time machine to study the past.)
Star Trek has handled time travel in so many contradictory ways that you can find some precedent for virtually anything.
The trick, IMHO, is finding out what is handled the most consistently, and time travel not creating parallel realities (excusing the alternate quantum realities that naturally unfold over the course of life), much less rewriting all of history from beginning to end, is one of them (as far as I can tell). Emphasis on the "most consistent" part. There have been deviations from time to time, but is the most consistent, the thing that seems most likely the Powers That Be were using as the working assumption?
And even if you do need special circumstances, you've got them. "Red Matter." Bam. There's your special circumstance. It's an arbitrary substance with arbitrary properties.
Since red matter was not designed for time travel, but to make black holes, does it really work that well as the special circumstance, since the time travel was an accident? (It has a pretty specific purpose, so taking on extra stuff to that function adds to the required suspension of disbelief.) I mean, how have black holes worked with time travel before? The only one I can recall was the "black star" from "Tomorrow is Yesterday" (TOS), and that resulted in the crew getting to the past of the prime universe, no parallel universe created.
Yes, that's what the movie claimed, but creatively, that wasn't the best choice. It meant that either they would be limited in future stories by an inability to change pre-2233 events, or that they'd be lambasted by the fans when they did make changes. And the latter is very, very much what's been happening nonstop for the past 7 years. The original proposal was not a satisfying explanation for inconsistencies like the huge Kelvin or Pike's age or the cities or the rest. So the creators have exercised their prerogative to fix a past mistake and have come up with a better explanation for what we've already seen.
I'm not sure it is a better explanation (it explains everything, and thus, explains nothing), and excusing those couple of stuff you brought up, what were the big goofs, beyond Chekov's age? IMHO, most of the mistakes where in the characterization, the temporal mechanics, and some of the geography (all stuff that has little to do with the premise that pre-2233 was ostensibly the same in both).
As I see it, the previous filmmakers always felt free to change the past as well as the future, but they pretended it was the same past as a sop to continuity-purist fans.
Umm, I'm going to have to say that overall, the answer is "no." At least three of the original movies were sequels to TV episodes, and/or filled in continuity holes in the franchise. ENT drew heavily from the setup of
First Contact and went out of its way to set up stuff that we saw in TOS, esp. in the last season. TNG, DS9, and VOY were heavily integrated, with some things, like the Maquis story, spanning all three series. (DS9 was also a sequel to a TNG episode, and all it's major Alpha Quadrant species, from the Bajorans to the Breen, were TNG races.
Look, I've poked around
Memory Alpha, I've read the
Encyclopedia, the
Chronology, and have seen the vast majority of the shows. There are some inconsistencies, sure (some intentional, some accidental), and that can't be avoided in a franchise that's run this long and had so many iterations. But, don't go telling me that the pre-reboot shows and movies aren't designed to fit together as one whole and, with the occasional exception, hang together really well. I know better, I was there.
But the sop didn't work -- the continuity-purist fans just got madder at the inconsistencies. (And the comics just ignored the pretense and treated it as a parallel reality anyway.) Now the filmmakers are just being more honest about what the films have been doing all along.
Comics aren't canon, so they're free to be whatever they want (and, I think, should be treated as such, the same way that the '80s novels shouldn't be dismissed as some decent stories just because they've since been overwritten by canon).
And does the new time travel model appease the "continuity-purist fans"? I don't know, since I haven't had a chance to talk to anyone in that camp, but I know my gut reaction was "that's
really not how
Star Trek time travel works," and while I've come to like the gist of the idea on paper, I still have strong reservations about it being consistent with the world building of the franchise it's a part of.