History Main / GrandfatherParadox

21st Apr '18 7:30:51 PM JoeMerl
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* Lampshaded in an episode of ''WesternAnimation/InvaderZIM'', where Zim tries to kill Dib using a time machine. The resulting LogicBomb causes GIR's head to explode. This also prevents him from actually succeeding in killing Dib, since when he does successfully cause Dib to flatline, his father Professor Membrane just brings him back to life with a robot mecha suit, and no matter what point of time Zim tries to exploit, it only results in said mecha getting more and more upgrades.

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* Lampshaded in an episode of ''WesternAnimation/InvaderZIM'', where Zim tries by [[MinionWithAnFInEvil GIR]] [[SmartBall of all people]]. Perhaps because of this trope, [[VillainProtagonist Zim]] finds himself unable to kill Dib using a time machine. The resulting LogicBomb causes GIR's head to explode. This also prevents him from actually succeeding kill [[HeroAntagonist Dib]] in killing Dib, since when he does successfully cause the past.
-->'''GIR:''' Wait, if you destroyed
Dib in the past, then he won't ever be your enemy, ''(short circuits)'' then you won't have to flatline, his father Professor Membrane just brings him send a robot back to life with destroy him...and then he ''WILL'' be your enemy, so you ''WILL'' have to send a robot mecha suit, and no matter what point of time Zim tries to exploit, it only results in said mecha getting more and more upgrades.back--''([[YourHeadAsplode head explodes]])''
7th Apr '18 9:08:38 PM Kayube
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* The first space shuttle orbiter, the Enterprise, was named after the USS Enterprise from Series/StarTrek. In Film/StarTrekTheMotionPicture, it is revealed that the USS Enterprise was named after the first space shuttle orbiter.
8th Mar '18 8:36:21 PM SirPellucidar
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* Happens quite often in Stephen Baxter's Xeelee Sequence books, where entire wars are fought atemporally, causing battles to happen multiple times in different timelines with different outcomes, and where going back in time to give your own side intelligence about your enemy's future actions is a common tactic. Defied in one instance where a character receives information from a timeline that should no longer exist, but the information still remains. The explanation given was that time is flexible, and just because the one particular event that led to him getting that information now had never happened, in some other timeline he had gotten it a different way, and so he ended up still having it.
28th Jan '18 7:57:33 PM ReaderAt2046
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* {{Lampshaded}} in ''TabletopGame/MagicTheGathering''. In the ''Tarkir'' block, Sarkhan Vol travels back into the past of his own plane and alters the timeline so that the dragons never went extinct. One of many knock-on effects from this is that Sarkhan himself was never born in the new timeline. However, perhaps due to being a Planeswalker, he still exists as a self-described "orphan of time". For all intents and purposes, he simply popped into existence fully-formed when he returned to the present.
9th Jan '18 8:29:25 PM WanderingBrowser
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* During the time travel arc of ComicBook/{{Thunderbolts}}, the current team ends up in New York, back in the days when the first team of Thunderbolts was still active and still serving as Zemo's disguised Masters of Evil. Due to a long chain of events, the past version of Fixer finds out about his future by secretly hacking the present Fixer's files, and the two get into an argument that causes the present Fixer to kill his past self by engaging a self-destruct built into his past-self's armor. This causes reality to start imploding in on itself, and the destruction of everything is only averted when Fixer has Centurius erase his memories and de-age him so that he can take his past self's place, creating a StableTimeLoop. This is ultimate fixed in a later Thunderbolts story when Kobik, the living [[RealityWarper Cosmic Cube]] in the form of a little girl, undoes the loop by erasing past-Fixer's death.



* The first space shuttle orbiter, the Enterprise, was named after the USS Enterprise from StarTrek. In StarTrekTheMotionPicture, it is revealed that the USS Enterprise was named after the first space shuttle orbiter.

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* The first space shuttle orbiter, the Enterprise, was named after the USS Enterprise from StarTrek. Series/StarTrek. In StarTrekTheMotionPicture, Film/StarTrekTheMotionPicture, it is revealed that the USS Enterprise was named after the first space shuttle orbiter.
28th Nov '17 2:06:44 PM TMNTFanGirl
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* Jude Lazowski misintrepets this in ''WesternAnimation/{{Sixteen}}''--in an episode where Jonesy accidentally breaks up an elderly couple that's been married for fifty years, Jude explains to the gang that his own grandparents got married fifty years previously, but that he never met them, "on account of the fact that they were political rebels who went into hiding." When Wyatt points out that, assuming that Jude's grandparents are still alive, they're probably around the same age as the Bickersons (the elderly couple that Jonesy accidentally split apart)--this leads Jude to believe that the Bickersons are his grandparent, and that if they break up now (in the current timeline), he'll cease to exist.

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* Jude Lazowski misintrepets this in ''WesternAnimation/{{Sixteen}}''--in an episode ''WesternAnimation/{{Sixteen}}'' called "Bicker Me Not," where after Jonesy accidentally breaks up an elderly couple (named George and Gracie Bickerson) that's been married for fifty years, Jude explains to the gang reveals that his own grandparents got married fifty years previously, but previously (he never clarifies if they were his mom's parents or his dad's parents). However, Jude claims that he never met them, "on account of the fact that they were political rebels who went into hiding." hiding" before Jude was born. When Wyatt the gang points out that, assuming that Jude's grandparents are still alive, they're probably around the same age as the Bickersons (the elderly couple that Jonesy accidentally split apart)--this Bickersons--this leads Jude to believe that the Bickersons are his grandparent, grandparents, which ultimately leads to him misinterpreting the titular paradox: if George and that if they Gracie break up now (in the current timeline), timeline) and don't get back together, [[CessationOfExistence he'll eventually cease to exist.exist]].
22nd Nov '17 10:56:52 PM intastiel
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* In ''TabletopGame/MageTheAwakening'', joining the highest ranks of the [[ApocalypseCult Cult of the Doomsday Clock]] requires that a mage reach through time and kill their past self, making their existence a Paradox and allegedly freeing themselves from the shackles of time. [[spoiler:Subverted in that this actually allows an abyssal monster to devour the mage's existence and take their place in the world.]]

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* In ''TabletopGame/MageTheAwakening'', joining ''TabletopGame/MageTheAwakening'':
** Joining
the highest ranks of the [[ApocalypseCult Cult of the Doomsday Clock]] requires that a mage reach through time and kill their past self, making their existence a Paradox and allegedly freeing themselves from the shackles of time. [[spoiler:Subverted in that this actually allows an abyssal monster to devour the mage's existence and take their place in the world.]]world, since those entities are Paradox incarnate.]]
** [[TheArchmage Archmasters]] are explicitly allowed to use time travel to erase their lives from history. It doesn't annihilate them, simply because becoming an archmaster means they're partway through [[AscendToAHigherPlaneOfExistence Ascending to a Higher Plane of Existence]] and aren't bound to the material world, but it does, well, [[RetGone erase their lives from history]].
19th Aug '17 9:39:32 PM TitaniumDragon
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* The first space shuttle orbiter, the Enterprise, was named after the USS Enterprise from StarTrek. In StarTrekTheMotionPicture, it is revealed that the USS Enterprise was named after the first space shuttle orbiter.
8th Jun '17 8:17:13 AM TMNTFanGirl
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* In the final episode of ''WesternAnimation/SamuraiJack'', Jack finally manages to travel back to his own time and kill Aku. Unfortunately, [[spoiler:since his love interest Ashi was Aku's daughter, she disappears. Cruelly, [[DelayedRippleEffect she seems perfectly fine until their wedding day]], when she suddenly collapses, realizes Aku would have never fathered her, then vanishes in Jack's arms.]]
* ''WesternAnimation/WonderWarthog'' employs this with one case of glaring inconsistency. He is hanging out in a bar with Stoneage Warthog and The Hog from the Future (I may have the names wrong), and the latter decides to explore the nature of a paradox by shooting the former with a zapgun. Since Stone-age Warthog was the direct ancestor of the others, they cease to exist, while the city is retroactively turned into a crime-ridden cesspool because WW wasn't around to do anything. The Hogs are then immediately returned (since Future Hog couldn't have killed Stoneage Hog if he didn't exist) and everything is fine... except the city is ''still'' a hellhole, necessitating the heroes to fix it the traditional way.

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* In the final episode of ''WesternAnimation/SamuraiJack'', Jack finally manages to travel back to his own time and kill Aku. Unfortunately, [[spoiler:since his love interest Ashi interest, Ashi, was Aku's daughter, she disappears.ends up ceasing to exist. Cruelly, [[DelayedRippleEffect she seems perfectly fine until their wedding day]], when she suddenly collapses, realizes Aku would have never fathered her, then vanishes in Jack's arms.]]
* ''WesternAnimation/WonderWarthog'' employs this with one case of glaring inconsistency. He is hanging out in a bar with Stoneage Warthog and The Hog from the Future (I may have the names wrong), and the latter decides to explore the nature of a paradox by shooting the former with a zapgun. Since Stone-age Warthog was the direct ancestor of the others, they cease to exist, while the city is retroactively turned into a crime-ridden cesspool because WW wasn't around to do anything. The Hogs are then immediately returned (since Future Hog couldn't have killed Stoneage Hog if he didn't exist) and everything is fine... except the city is ''still'' a hellhole, necessitating the heroes to fix it the traditional way.way.
* Jude Lazowski misintrepets this in ''WesternAnimation/{{Sixteen}}''--in an episode where Jonesy accidentally breaks up an elderly couple that's been married for fifty years, Jude explains to the gang that his own grandparents got married fifty years previously, but that he never met them, "on account of the fact that they were political rebels who went into hiding." When Wyatt points out that, assuming that Jude's grandparents are still alive, they're probably around the same age as the Bickersons (the elderly couple that Jonesy accidentally split apart)--this leads Jude to believe that the Bickersons are his grandparent, and that if they break up now (in the current timeline), he'll cease to exist.
21st May '17 8:26:50 AM ultimomant
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* In the final episode of ''WesternAnimation/SamuraiJack'', Jack finally manages to travel back to his own time and kill Aku. Unfortunately, [[spoiler:since his love interest Ashi was Aku's daughter, she disappears. Cruelly, [[DelayedRippleEffect she seems perfectly fine until their wedding day]], when she suddenly collapses, realizes Aku would have never fathered her, then vanishes in Jack's arms.]]
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http://tvtropes.org/pmwiki/article_history.php?article=Main.GrandfatherParadox