I recently started reading the second Federation Department of Temporal Investigations novel, Forgotten History. I've enjoyed the novel so far but had a question about a comment made by Spock early in the text: Spoiler: Spock's Comment Spock is involved in an incident during the TAS episode "Yesteryear" in which he accidentally causes his own death at age seven due to his being in Orion's past rather than on Vulcan to save his younger counterpart from an attack by a le matya. This incident is brought about by Federation historians scanning the Guardian of Forever to view Vulcan history. In the timeline in which Spock perishes as a child, an Andorian named Thelin th'Valrass becomes Kirk's closest friend and right-hand aboard the Enterprise (as depicted in both "Yesteryear" and the MU novel The Chimes at Midnight). The Enterprise crew of this continuity does not know Spock, who eventually deduces that his absence lead to his death and that he was in fact saved by an older version of himself in the timeline that he remembers. Spock uses the Guardian to save his life and restore the sequence of events we're familiar with but later refers to this history as having been altered due to his intervention. I wonder about the subtext of what he said. Is Spock suggesting that the unaltered flow of history involves his death as a child and the subsequent posting of Thelin to Enterprise during TOS (and beyond), or is there perhaps another continuity of events that's unknown to us? Was Thelin supposed to serve on Enterprise instead of Spock? Anyone's who's read The Chimes at Midnight knows that events in this timeline were of a more dystopian nature than what we're familiar with. But was this what was supposed to happen, or was it merely one version of events that we happened to see because of the incident with the Guardian? --Sran
There is no "unaltered" flow of history. Spock was always supposed to be his own 'cousin Selek' and save himself as a child. The only reason there was an alternate timeline is because two different periods of Vulcan history were being viewed at the same time, and Spock couldn't be in both of them, so he was 'erased' from one of them - thus giving rise to the Thelin timeline.
I haven't read the book, but I think that the timeline change Spock is referring to is that, before the events of "Yesteryear," I-Chaya didn't die during Spock's kahs wan. When Spock "restored" the timeline, there was that small change.
There is no "supposed to happen." That implies destiny or a divine plan or something unscientific like that. However, it's clear enough that the Thelin timeline is the way things would have played out had time travel not been involved. However, time travel was involved; Spock Prime's worldline (at least up through 2269) is a self-consistent loop that generates itself through reverse causation. So we have an unusual situation in which two timelines are intertwined. The mistake people make when talking about time travel is insisting on an "original" timeline followed by a "new" timeline. The problem is that they're talking about two different versions of the same span of time, which are by definition simultaneous, therefore it's meaningless to say one comes before the other. The time traveler's subjective perception may be that one comes before the other, but that's just because they went backward and relived the same span of time, like if you watch one 8 PM TV show live and then watch another 8 PM show that you recorded on your DVR. As far as the rest of the universe is concerned, they happened simultaneously. So a time travel doesn't "change" the way the multiverse unfolds; the time-travel event is simply part of the shape of the timelines at that segment of time. It was there "all along" even if you didn't know about it until you went back and discovered it. Don't ask me to explain the I-Chaya thing, though. That bit never made much sense.
I always took it that the "Yesteryear" timeline was not correctly reset. The only difference was seemingly the earlier-than-previously death of a pet. In the grand scheme of things, it was a hiccup most of the participants can live with. Some pet owners may disagree, of course, and that's our moral dilemma for the episode, as suggested by Spock.
But again, the idea that there is a "reset" at all, that there's a "before" and "after" version of the same span of time, is self-contradictory and ridiculous if you really think about it. The perception that one comes "before" the other is an illusion created by the time travelers' movement back along their own timestream, causing them to experience the same span of time in two or more consecutive instances. It's a subjective perception that does not represent the objective reality. In order to evaluate a timeline interaction, you have to treat all the different timelines as coexisting simultaneously, to see the entire process from beginning to end as a single complete, timeless event. Visualizing the timestreams as parallel lines on a chart can help with this.
Sure. In one parallel line, Spock is replaced by Thelin. In another parallel line, Cousin Selek never visited and i-Chaya died when Spock was an adult. In another parallel line, Cousin Selek visited Spock as a young boy and i-Chaya died when Spock was an adult. In another parallel line, i-Chaya died when Spock was a child. In another parallel line, Bates and Erikson swapped positions. ("Crucible: Spock")
There is no timeline where Selek never visited and Spock survived. That's the whole point of the episode -- that without the adult Spock to go back and save his young self, there is no adult Spock. It's a self-consistent time loop. People are constantly making the mistake of assuming that such a loop has to replace some "original" or "pure" timeline with no time travel at all, but again that's making the mistake of failing to look beyond subjective perceptions of before-and-after causality. Where time travel is concerned, it is perfectly possible for an event to cause itself -- not as a "change" from some pristine original, but as the only way it ever happened.
So Steven Moffat was not completely wrong when he wrote that, "People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint, it's more like a big ball of wibbly wobbly... time-y wimey... stuff."
Yes. Because the Terminator went back in time to prevent his birth, it actually caused the circumstances (Reese traveling back to stop Sarah's murder) that led to Connor's birth. --Sran
Hmm. I'm reminded of a Starlog article from the 1980s, asserting that the Marty McFly who was born in the timeline that had a "Twin Pines Mall" had a lot of unpleasant surprises waiting for him when he came "back to the future." Which suggests that the timeline in which I-Chaya died in Spock's childhood, and the timeline in which I-Chaya died while Spock was an adult, generated each other.
^Err, when was there a timeline where I-Chaya died when Spock was an adult? I-Chaya was clearly elderly already in "Yesteryear," so it makes no sense to think he lived another 20 or 30 years. All we know is that Spock didn't remember him dying as a result of a le-matya attack during his premature Kahs-wan. The "original" version may have had I-Chaya being peacefully put to sleep by the vet a couple of years later.
I doubt it. That version of Marty (you mean the "Lone Pine Mall" version, actually) just shrugged it off when he got back home, because everything was the same as when he left. Logically, he could never have ended up in Twin Pines Marty's timeline, because that - according to BTTF rules of time travel - was erased.
^True, but the Starlog author came up with a really plausible alternate theory, or at least a well-thought-out one.