History Main / YouAlreadyChangedThePast

23rd Jun '16 4:43:20 PM spiritsunami
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* In the second ''[[Literature/{{Animorphs}} Megamorphs]] book, the Animorphs go back to the time of the dinosaurs. While there, they find two groups of aliens at war with one another, the Mercora and the Nesk, and take the Mercora's side. Meanwhile, they're also trying to get back to their own time period, which will apparently require a nuclear explosion, and so they steal a nuke from the Nesk. This causes the Nesk to leave the planet angrily, but not before diverting the path of a comet that was originally going to narrowly miss the Earth so that it crashes into it instead. Most of the Animorphs want to use the nuke to destroy the comet and save the Mercora, but Tobias has Ax sabotage the nuke in a way so that the Mercora won't realize it's a dud until it's too late, [[https://en.wikipedia.org/wiki/Cretaceous%E2%80%93Paleogene_extinction_event having realized that the evolution of mammalian life as they now it depends on that comet striking.]]
16th May '16 4:13:55 PM DeisTheAlcano
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* In ''ComicBook/TheTransformersMoreThanMeetsTheEyee'', Brainstorm intends to prevent the war by killing Megatron - his crewmates think he intends to win the war by killing Optimus, which is why they follow. Brainstorm's time travel causes the evacuation on a mining asteroid which resulted in Megatron making his first kill, then he leads the others back where ''they'' are the cause of the brawl Megatron was arrested in (and also get to see that before Whirl got his claws on him, he was a total pussy). Meanwhile Chromedome prevents Rewind from changing the future by saying "We're not allowed to change the future" even though they could have, but seconds later blurts out this will be Senator Shockwave's location in a year's time - which also keeps the future from changing.

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* In ''ComicBook/TheTransformersMoreThanMeetsTheEyee'', ''ComicBook/TheTransformersMoreThanMeetsTheEye'', Brainstorm intends to prevent the war by killing Megatron - his crewmates think he intends to win the war by killing Optimus, which is why they follow. Brainstorm's time travel causes the evacuation on a mining asteroid which resulted in Megatron making his first kill, then he leads the others back where ''they'' are the cause of the brawl Megatron was arrested in (and also get to see that before Whirl got his claws on him, he was a total pussy). Meanwhile Chromedome prevents Rewind from changing the future by saying "We're not allowed to change the future" even though they could have, but seconds later blurts out this will be Senator Shockwave's location in a year's time - which also keeps the future from changing.
11th May '16 10:38:54 AM erforce
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* In ''Series/TheSarahConnorChronicles'' episode "Allison from Palmdale", Cameron malfunctions and believes herself to be Allison Young, the resistance fighter on whom her appearance was based. She calls "her" mother, who says this must be some mistake since she doesn't have a daughter "yet"...

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* In ''Series/TheSarahConnorChronicles'' ''Series/TerminatorTheSarahConnorChronicles'' episode "Allison from Palmdale", Cameron malfunctions and believes herself to be Allison Young, the resistance fighter on whom her appearance was based. She calls "her" mother, who says this must be some mistake since she doesn't have a daughter "yet"...
25th Apr '16 1:03:58 PM StFan
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[[folder:Anime and Manga]]

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[[folder:Anime and & Manga]]



* In ''ComicBook/MoreThanMeetsTheEye'', Brainstorm intends to prevent the war by killing Megatron - his crewmates think he intends to win the war by killing Optimus, which is why they follow. Brainstorm's time travel causes the evacuation on a mining asteroid which resulted in Megatron making his first kill, then he leads the others back where ''they'' are the cause of the brawl Megatron was arrested in (and also get to see that before Whirl got his claws on him, he was a total pussy). Meanwhile Chromedome prevents Rewind from changing the future by saying "We're not allowed to change the future" even though they could have, but seconds later blurts out this will be Senator Shockwave's location in a year's time - which also keeps the future from changing.

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* In ''ComicBook/MoreThanMeetsTheEye'', ''ComicBook/TheTransformersMoreThanMeetsTheEyee'', Brainstorm intends to prevent the war by killing Megatron - his crewmates think he intends to win the war by killing Optimus, which is why they follow. Brainstorm's time travel causes the evacuation on a mining asteroid which resulted in Megatron making his first kill, then he leads the others back where ''they'' are the cause of the brawl Megatron was arrested in (and also get to see that before Whirl got his claws on him, he was a total pussy). Meanwhile Chromedome prevents Rewind from changing the future by saying "We're not allowed to change the future" even though they could have, but seconds later blurts out this will be Senator Shockwave's location in a year's time - which also keeps the future from changing.



[[folder:Live Action TV]]

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[[folder:Live Action [[folder:Live-Action TV]]



[[folder:Mythology and Religion]]

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[[folder:Mythology and [[folder:Myths & Religion]]
25th Apr '16 11:07:30 AM erforce
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* ''VideoGame/TimeSplitters: FuturePerfect'' is an example of this situation. Sergeant Cortez does, at least once per time period, meet a future version of himself that saves him, then when he reaches the period the future version is from, he then goes back to save his past self, fulfilling the time loop. EX: in the stage "What Lies Below", Cortez is saved by himself from the future, then has to defend his future self from zombies while the future self kills ghosts. Shortly afterward he wants to follow his future self, but his future self tells him "but where would you be if I hadn't shown up?". Future and Past Cortez part, then Past Cortez finds the ghost gun that Future Cortez found, steps into a wormhole, and ends back up where he was before, becoming Future Cortez. Now Future Cortez (who is controlled by the player) must kill ghosts while past Cortez shoots the zombies. When past Cortez asks to stay in a team, future Cortez tells him exactly what he heard from himself at this point. "Where would you be if I hadn't shown up?". The two part, and Cortez continues.

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* ''VideoGame/TimeSplitters: FuturePerfect'' ''VideoGame/TimeSplittersFuturePerfect'' is an example of this situation. Sergeant Cortez does, at least once per time period, meet a future version of himself that saves him, then when he reaches the period the future version is from, he then goes back to save his past self, fulfilling the time loop. EX: in the stage "What Lies Below", Cortez is saved by himself from the future, then has to defend his future self from zombies while the future self kills ghosts. Shortly afterward he wants to follow his future self, but his future self tells him "but where would you be if I hadn't shown up?". Future and Past Cortez part, then Past Cortez finds the ghost gun that Future Cortez found, steps into a wormhole, and ends back up where he was before, becoming Future Cortez. Now Future Cortez (who is controlled by the player) must kill ghosts while past Cortez shoots the zombies. When past Cortez asks to stay in a team, future Cortez tells him exactly what he heard from himself at this point. "Where would you be if I hadn't shown up?". The two part, and Cortez continues.
21st Apr '16 12:48:49 PM erforce
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* ''Film/TheTerminator'' gives a rare example of the good guys directly benefiting from the immutability of time. The machines sent back a Terminator to kill Sarah Connor before her son John Connor was born, in response, the rebels send back... the guy who becomes John's father. Also, in a deleted scene, it turns out that Cyberdyne, the company that built [=SkyNet=] and the original Terminators, acquired the remains of the Terminator. The sequel shows that they'd begun [[StableTimeLoop reverse engineering the Terminator]], which would presumably have led to the creation of the Terminators had the events of the sequel not occurred, so it happened on both sides.

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* ''Franchise/{{Terminator}}''
**
''Film/TheTerminator'' gives a rare example of the good guys directly benefiting from the immutability of time. The machines sent back a Terminator to kill Sarah Connor before her son John Connor was born, in response, the rebels send back... the guy who becomes John's father. Also, in a deleted scene, it turns out that Cyberdyne, the company that built [=SkyNet=] and the original Terminators, acquired the remains of the Terminator. The sequel shows that they'd begun [[StableTimeLoop reverse engineering the Terminator]], which would presumably have led to the creation of the Terminators had the events of the sequel not occurred, so it happened on both sides.



* ''Film/BillAndTedsExcellentAdventure'': One of the signs that Bill and Ted are [[BookDumb clever if not book smart]] is their recognition of this trope; they realize that to solve a problem in the present, they can use their time machine to plant helpful items in the past, and then they'll be there for their present selves to discover - and they keep reminding each other "Once this is over, we have to go back and place all that stuff!"
* The entire climax of ''Film/BillAndTedsBogusJourney'' is B&T and the BigBad performing dueling versions of this. [[spoiler:Except that, as Bill points out, only the winner can change history, so all the things the villain thought he planted were just decoys B&T placed to lull him into a false sense of security. In fact, as dumb as Bill and Ted usually are, they tend to be ''very'' smart when it comes to this trick.]]

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* ''Bill and Ted''
**
''Film/BillAndTedsExcellentAdventure'': One of the signs that Bill and Ted are [[BookDumb clever if not book smart]] is their recognition of this trope; they realize that to solve a problem in the present, they can use their time machine to plant helpful items in the past, and then they'll be there for their present selves to discover - and they keep reminding each other "Once this is over, we have to go back and place all that stuff!"
* ** The entire climax of ''Film/BillAndTedsBogusJourney'' is B&T and the BigBad performing dueling versions of this. [[spoiler:Except that, as Bill points out, only the winner can change history, so all the things the villain thought he planted were just decoys B&T placed to lull him into a false sense of security. In fact, as dumb as Bill and Ted usually are, they tend to be ''very'' smart when it comes to this trick.]]
21st Apr '16 5:38:56 AM erforce
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** This gets blown out of the water in TerminatorGenisys, in which time travel goes full TimeyWimeyBall.

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** This gets blown out of the water in TerminatorGenisys, ''Film/TerminatorGenisys'', in which time travel goes full TimeyWimeyBall.
15th Mar '16 3:28:44 PM ObsidianFire
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* Harve Bennett's explanation for why the ''Enterprise'' crew was so careless about altering history in ''Film/StarTrekIVTheVoyageHome'' seems to be (he says it in a rather disjointed way) that this trope is in place and the characters are GenreSavvy. Although this [[TimeyWimeyBall contradicts how time travel is usually portrayed in the series]], it does fall into line with the one episode of the original series that also used the "slingshot around the Sun to visit 20th century Earth" method.

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* Harve Bennett's explanation for why the ''Enterprise'' crew was so careless about altering history in ''Film/StarTrekIVTheVoyageHome'' seems to be (he says it in a rather disjointed way) that this trope is in place and the characters are GenreSavvy.place. Although this [[TimeyWimeyBall contradicts how time travel is usually portrayed in the series]], it does fall into line with the one episode of the original series that also used the "slingshot around the Sun to visit 20th century Earth" method.



** Technically [[spoiler:they were only trying to figure out where he'd been buried. The protagonist's mother happened to be a bit GenreBlind though, and tried to save him.]]

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** Technically [[spoiler:they were only trying to figure out where he'd been buried. The protagonist's mother happened to be a bit GenreBlind stupid though, and tried to save him.]]
13th Mar '16 6:08:58 PM Tightwire
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* In ''ComicBook/MoreThanMeetsTheEye'', Brainstorm intends to prevent the war by killing Megatron - his crewmates think he intends to win the war by killing Optimus, which is why they follow. Brainstorm's time travel causes the evacuation on a mining asteroid which resulted in Megatron making his first kill, then he leads the others back where ''they'' are the cause of the brawl Megatron was arrested in (and also get to see that before Whirl got his claws on him, he was a total pussy). Meanwhile Chromedome prevents Rewind from changing the future by saying "We're not allowed to change the future" even though they could have, but seconds later blurts out this will be Senator Shockwave's location in a year's time - which also keeps the future from changing.



* Played straight on ''{{WesternAnimation/Futurama}}'', where Fry ends up in 1947 and spends half the episode just trying to make sure his grandfather doesn't die. After the Professor warns him not to change the past ''unless'' he was already destined to change the past, Fry's extreme caution and stupidity result in his grandfather being vaporized by an atomic bomb. However, subsequent events make it clear that the [[TrickedOutTime man Fry killed was not actually]] Fry's grandfather, and that his real grandfather is [[spoiler: Fry himself]]. Of course, this is immediately followed by the Professor launching a full-blown assault on Area 51 with his intergalactic starship to retrieve the parts necessary to get home...

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* Played straight on ''{{WesternAnimation/Futurama}}'', where Fry ends up in 1947 and spends half the episode just trying to make sure his grandfather doesn't die. After the Professor warns him not to change the past ''unless'' he was already destined to change the past, Fry's extreme caution and stupidity result in his grandfather being vaporized by an atomic bomb. However, subsequent events make it clear that the [[TrickedOutTime man Fry killed was not actually]] Fry's grandfather, and that his real grandfather is [[spoiler: Fry himself]]. Of course, this is immediately followed by the infuriated Professor launching a full-blown assault on Area 51 with his intergalactic starship to retrieve the parts necessary to get home...
25th Feb '16 10:49:56 PM jormis29
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* In ''TheSarahConnorChronicles'' episode "Allison from Palmdale", Cameron malfunctions and believes herself to be Allison Young, the resistance fighter on whom her appearance was based. She calls "her" mother, who says this must be some mistake since she doesn't have a daughter "yet"...

to:

* In ''TheSarahConnorChronicles'' ''Series/TheSarahConnorChronicles'' episode "Allison from Palmdale", Cameron malfunctions and believes herself to be Allison Young, the resistance fighter on whom her appearance was based. She calls "her" mother, who says this must be some mistake since she doesn't have a daughter "yet"...
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http://tvtropes.org/pmwiki/article_history.php?article=Main.YouAlreadyChangedThePast