3D Master
Rear Admiral
You are thinking in terms of chronology rather than causality.No, it depicted the original timeline being the timeline where the Klingons are at peace with the Federation, and time travel event of the Enterprise-C coming to the future at a critical moment CHANGING that timeline into a timeline where the Federation and Klingons are at war with one another. They then send the Enterprise-C back in time to COMPLETE what it originally was going to do, which CHANGED the timeline BACK to its original peaceful self.For example, in TNG's "Yesterday's Enterprise," it depicted the original timeline where the Federation was at war with the Klingons; Picard's decision to send the Enterprise-C back in time to save a Klingon outpost created the alternate timeline that we see in every other TNG episode, where Worf serves in Starfleet and the Klingons are allies.
It however, did NOT create a parallel universe.
Causality does not matter; a cause of something, can lie in the future.
The "original" timeline is defined as what would happen if the past is NOT changed
Something WAS changed the moment the Enterprise-C came through that rift. You can SEE the change happen in the beginning of the episode. There's the timeline that we've been following for 2 seasons where there is peace between the Klingons and the Federation. THAT timeline got CHANGED, the moment the rift formed and the Enterprise-C came through. You see, if there was no change, if the Enterprise-C always went through that rift, the cause of it lying in the past, then for 2 seasons we would have been following a show where the Federation is at war with the Klingons, and at the beginning of this episode we would have seen NOTHING of the timeline where the Federation is at peace and are allies with the Klingons, we would have seen ONLY the war timeline.
-- i.e., events in the past cause events in the present, which cause events in the future.
Don't forget that events in the future can cause events in the present, which could cause events both in the future and further in the past.
In Star Trek, the anti-time rift for example. And Voyager's little run in with themselves trapped in a singularity.
And in real life the possibility of: positrons - anti-matter. Yes, if you look at positrons and anti-matter in a certain way, and follow the math, it would seem they are nothing but their matter counterparts moving backward through time.
Thus, the event that caused a positron to be created, the cause, lies in the FUTURE, the effect is that a positron is present now, and it disappears back in the past anihilating in the event that created its accompanying electron and only SEEMED to have created the positron.
Causality therefor, is a moot point, unless you know EXACTLY ALL the causal relationships, which gets us to below.
In "Yesterday's Enterprise," the battle with the Romulans caused photon torpedoes to be fired. The explosion of the torpedoes caused a spatial rift to form. The rift caused the Enterprise-C to disappear. This is the only possible chain of causality in the "original" timeline.
No, it is NOT the only possible chain of causality, in fact the fact that there was a timeline where there was peace between the Klingons and the Federation that got erased because the E-C traveled to the future tells us for a certain fact that that is NOT the chain of causality.
Indeed; when has the detonation of photon torpedoes before or since against enemy shields caused a temperal rift? It seems more than likely that something ELSE was in the mix than just torpedoes and their detonation. Something, like particles moving backward through time, that has its origin, its cause in the FUTURE; namely the peaceful time future. These things colliding with the energies of detonating photon torpedoes; which caused a rift, which caused the E-C to be taken to the future, while it NEVER DID in the original timeline.
(Of course, this is not the only explanation, there are fanfics out there, where the E-C rift was created by 30th century Temperal Cold War, as another attempt to wipe out the Federation.)
Anyway; as I said, unless you KNOW the exact causal relationships, every exact detail, you cannot talk about what came first or didn't, and IT DOESN'T MATTER. The only thing that matters, is that there was a peaceful timeline where the E-C got destroyed, this got changed because the E-C ended up in the future - there was time travel, and the time line got changed. We don't need to know any more.
The timeline is changed when the Enterprise-C, with Lt. Yar aboard, comes back from the future and saves the Klingon outpost. There was NO "original" timeline where the Enterprise-C DIDN'T disappear into the rift.
Yes, there WAS, because if there was NOT, we would not have been following that time line for 2 seasons, and the beginning of the episode wouldn't have been able to show that timeline getting changed.
<snip> Repeat that's already been explained.