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Alphabetizing example(s); was going to add an example but now questioning whether this is the right trope for it


* ''Franchise/TheHitchhikersGuideToTheGalaxy'':
** The TropeNamer, in which the Guide presents an argument against {{God}}'s existence. As the argument goes, God refuses to prove his own existence, because "proof denies faith, and without faith I am nothing." Man points out the Babel Fish as a "dead giveaway" - it's just too handy to have evolved naturally - causing God to vanish "in a puff of logic." The Guide then says that this argument has been universally rejected on the basis that it is [[UsefulNotes/LogicalFallacies profoundly stupid]]; just to start, the Babel Fish being made unnaturally doesn't mean God had to have made it. Of course, that doesn't stop in-universe writers such as Oolon Coluphid from cashing in on the argument.
** The second book in the trilogy explains that if you are able to learn the trick of flying,[[note]]Which the book specifically posits involves "falling but ''missing the ground''. Within the context of the story, Arthur trips, but during his short journey from standing to prone, he happens to notice a handbag that he had misplaced some time ago, and this distraction was what allowed him to miss the ground and take to the air.[[/note]] the first thing anyone who sees you is likely to say is something along the lines of "My God, you can't possibly be flying" and it is vitally important not to listen to these people or they will suddenly be right.[[note]]Similarly, while Arthur is aloft, he has to take pains to ''not'' acknowledge that he is flying, for the same reasons--to think about the fact that he is flying will cause him to think about the fact that he ''shouldn't be'' flying, and thus his flight would suddenly come to an end.[[/note]]
* In his ''Literature/MeditationsOnFirstPhilosophy'', Descartes actually ponders this by noting that if he wasn't thinking, then perhaps he would not exist. He goes on to state that, regardless of what else he may be wrong about, he must at least exist in the capacity of an entity that is capable of being wrong; if he doesn't exist in at least that capacity, then [[BystanderSyndrome it's not his problem]].

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* ''Franchise/TheHitchhikersGuideToTheGalaxy'':
** The TropeNamer, in which
In the Guide presents an argument against {{God}}'s existence. As the argument goes, God refuses to prove his own existence, because "proof denies faith, and without faith I am nothing." Man points out the Babel Fish as a "dead giveaway" - it's just too handy to have evolved naturally - causing God to vanish "in a puff of logic." The Guide then says that this argument has been universally rejected on the basis that it is [[UsefulNotes/LogicalFallacies profoundly stupid]]; just to start, the Babel Fish being made unnaturally doesn't mean God had to have made it. Of course, that doesn't stop in-universe writers such as Oolon Coluphid from cashing in on the argument.
** The second book in the trilogy explains that if you are able to learn the trick of flying,[[note]]Which the book specifically posits involves "falling but ''missing the ground''. Within the context of the story, Arthur trips, but during his
1951 short journey from standing to prone, he happens to notice a handbag that he had misplaced some time ago, and this distraction was what allowed him to miss the ground and take story ''Built Down Logically'' by Howard Schoenfeld, two students come to the air.[[/note]] the first thing anyone who sees you is likely to say is something along the lines of "My God, you conclusion that their lecturer can't possibly be flying" and it is vitally important not to listen to these people or they will suddenly be right.[[note]]Similarly, while Arthur is aloft, he has to take pains to ''not'' acknowledge that he is flying, for the same reasons--to think about the fact that he is flying will cause him to think about the fact that he ''shouldn't be'' flying, and thus his flight would suddenly come to an end.[[/note]]
* In his ''Literature/MeditationsOnFirstPhilosophy'', Descartes actually ponders this by noting that if he wasn't thinking, then perhaps he would not
exist. He goes on to state that, regardless of what else he may be wrong about, he must at least exist in instantly disappears, very nearly naming the capacity of an entity that is capable of being wrong; if trope as he doesn't exist in at least that capacity, does so:
-->No sooner had he uttered these words than Hooper disappeared. His body became opaque,
then [[BystanderSyndrome it's not transparent. Then there was a puff of smoke, and he was gone, the fact of his problem]].existence wiped out by the logical thinking of the two students.



* In ''Literature/ThePedantAndTheShuffly'' by Creator/JohnBellairs, persuading hapless passersby that, logically speaking, they don't exist, is the wicked magician Snodrog's favorite trick.

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* In ''Literature/ThePedantAndTheShuffly'' by Creator/JohnBellairs, persuading hapless passersby ''Literature/TheDresdenFiles: Literature/GhostStory'' has a non-fatal example. Harry, who is a shade, is riding in a car. It occurs to him that, logically speaking, they don't exist, as a ghost, he is capable of moving through solid objects such as walls. This causes him to wonder what's keeping him in the wicked magician Snodrog's favorite trick.car -- and as soon as he starts thinking this, he immediately slides through and out of the car. Ghosts in the Dresdenverse get most of their abilities through perception; since Harry had seen other spirits move through walls it became something he associated with them being able to do. Cars, on the other hand, he thought of as solid, because he rode in them often when he was alive. As soon as he started doubting whether or not it was, it ceased to be to his spirit form.
* In [[Creator/MoWillems Mo Willems]]'s ''Edwina, the Dinosaur Who Didn't Know She Was Extinct'', the boy Reginald tries to [[InvokedTrope invoke]] this, presenting everyone with his arguments and studies about dinosaurs being extinct, apparently hoping that if he can convince everyone, then Edwina will just disappear in a puff of logic. Edwina doesn't disappear and the evidence of Edwina being right there for them to see is more convincing to people.
* In the ''Literature/FengshenYanyi'', a certain Bi Gan was coaxed by Daji to have his heart removed. Thanks to Jiang Ziya predicting the whole thing, he was given a charm and some instructions to counter his death. Bi Gan carved his chest open, pulled his heart and then, walks out the palace without looking back. He manages to survive like that until somebody said that no one can live without a heart. He then collapsed and died on the spot.



* In the ''Literature/{{Goosebumps}}'' book ''The Haunted Car'', the evil ghost possessing the car is destroyed when she realizes that she accidentally did a good deed by unknowingly saving the boy she was trying to kill. She had used mind control to force the boy to get into the car, but before she can finally kill him she sees that his house had caught fire and he would have been dead already without her actions.
* ''Franchise/TheHitchhikersGuideToTheGalaxy'':
** The TropeNamer, in which the Guide presents an argument against {{God}}'s existence. As the argument goes, God refuses to prove his own existence, because "proof denies faith, and without faith I am nothing." Man points out the Babel Fish as a "dead giveaway" - it's just too handy to have evolved naturally - causing God to vanish "in a puff of logic." The Guide then says that this argument has been universally rejected on the basis that it is [[UsefulNotes/LogicalFallacies profoundly stupid]]; just to start, the Babel Fish being made unnaturally doesn't mean God had to have made it. Of course, that doesn't stop in-universe writers such as Oolon Coluphid from cashing in on the argument.
** The second book in the trilogy explains that if you are able to learn the trick of flying,[[note]]Which the book specifically posits involves "falling but ''missing the ground''. Within the context of the story, Arthur trips, but during his short journey from standing to prone, he happens to notice a handbag that he had misplaced some time ago, and this distraction was what allowed him to miss the ground and take to the air.[[/note]] the first thing anyone who sees you is likely to say is something along the lines of "My God, you can't possibly be flying" and it is vitally important not to listen to these people or they will suddenly be right.[[note]]Similarly, while Arthur is aloft, he has to take pains to ''not'' acknowledge that he is flying, for the same reasons--to think about the fact that he is flying will cause him to think about the fact that he ''shouldn't be'' flying, and thus his flight would suddenly come to an end.[[/note]]
* Creator/NKJemisin's ''Literature/InheritanceTrilogy'': Godlings' power grows when they act according to their "[[OddJobGods affinity]]" and wanes when they act against it. When the God of Childhood learns that he's done something completely antithetical with childhood, [[spoiler:fathering a child of his own,]] he starts RapidAging to death.
* ''Literature/JourneyToChaos'' plays this trope for laughs. Eric has a VisionQuest and goes for over a week without eating or drinking anything. Once reunited with his team, TheMedic says that he should have died by now. Eric pretends to keel over as a joke, leading to {{dope slap}}s and shouts of [[invoked]] DudeNotFunny.
* In ''Literature/TheLostYearsOfMerlin'' series, Merlin has to deal with people using AntiMagic, [[spoiler: which only works if the magic user believes its effect is real.]]
* In his ''Literature/MeditationsOnFirstPhilosophy'', Descartes actually ponders this by noting that if he wasn't thinking, then perhaps he would not exist. He goes on to state that, regardless of what else he may be wrong about, he must at least exist in the capacity of an entity that is capable of being wrong; if he doesn't exist in at least that capacity, then [[BystanderSyndrome it's not his problem]].



* In the ''Literature/FengshenYanyi'', a certain Bi Gan was coaxed by Daji to have his heart removed. Thanks to Jiang Ziya predicting the whole thing, he was given a charm and some instructions to counter his death. Bi Gan carved his chest open, pulled his heart and then, walks out the palace without looking back. He manages to survive like that until somebody said that no one can live without a heart. He then collapsed and died on the spot.
* ''Literature/TheDresdenFiles: Literature/GhostStory'' has a non-fatal example. Harry, who is a shade, is riding in a car. It occurs to him that, as a ghost, he is capable of moving through solid objects such as walls. This causes him to wonder what's keeping him in the car -- and as soon as he starts thinking this, he immediately slides through and out of the car. Ghosts in the Dresdenverse get most of their abilities through perception; since Harry had seen other spirits move through walls it became something he associated with them being able to do. Cars, on the other hand, he thought of as solid, because he rode in them often when he was alive. As soon as he started doubting whether or not it was, it ceased to be to his spirit form.

to:

* In Creator/LarryNiven's short story "The Nonesuch", the ''Literature/FengshenYanyi'', human settlers of a certain Bi Gan was coaxed planet inhabited by Daji to have his heart removed. Thanks to Jiang Ziya predicting a telepathic predator solve the whole thing, he was given a charm and some instructions to counter his death. Bi Gan carved his chest open, pulled his heart and then, walks out the palace without looking back. He manages to survive like problem by [[spoiler: convincing themselves (and future generations) that until somebody said the creature does not exist. When the creature tries to attack someone who sees it and refuses to believe that no one can live without a heart. He then collapsed and died on the spot.
* ''Literature/TheDresdenFiles: Literature/GhostStory'' has a non-fatal example. Harry, who is a shade, is riding in a car. It occurs to him that, as a ghost, he is capable of moving through solid objects such as walls. This
it's real, psychic feedback causes him it to wonder what's keeping him in disappear until the car -- and as soon as he starts thinking this, he immediately slides through and out of would-be victim moves on.]]
* In ''Literature/ThePedantAndTheShuffly'' by Creator/JohnBellairs, persuading hapless passersby that, logically speaking, they don't exist, is
the car. Ghosts in the Dresdenverse get most of their abilities through perception; since Harry had seen other spirits move through walls it became something he associated with them being able to do. Cars, on the other hand, he thought of as solid, because he rode in them often when he was alive. As soon as he started doubting whether or not it was, it ceased to be to his spirit form.wicked magician Snodrog's favorite trick.



* In ''Literature/TheLostYearsOfMerlin'' series, Merlin has to deal with people using AntiMagic, [[spoiler: which only works if the magic user believes its effect is real.]]
* In [[Creator/MoWillems Mo Willems]]'s ''Edwina, the Dinosaur Who Didn't Know She Was Extinct'', the boy Reginald tries to [[InvokedTrope invoke]] this, presenting everyone with his arguments and studies about dinosaurs being extinct, apparently hoping that if he can convince everyone, then Edwina will just disappear in a puff of logic. Edwina doesn't disappear and the evidence of Edwina being right there for them to see is more convincing to people.
* In the 1951 short story ''Built Down Logically'' by Howard Schoenfeld, two students come to the conclusion that their lecturer can't possibly exist. He instantly disappears, very nearly naming the trope as he does so:
-->No sooner had he uttered these words than Hooper disappeared. His body became opaque, then transparent. Then there was a puff of smoke, and he was gone, the fact of his existence wiped out by the logical thinking of the two students.
* ''Literature/JourneyToChaos'' plays this trope for laughs. Eric has a VisionQuest and goes for over a week without eating or drinking anything. Once reunited with his team, TheMedic says that he should have died by now. Eric pretends to keel over as a joke, leading to {{dope slap}}s and shouts of [[invoked]] DudeNotFunny.
* In Creator/LarryNiven's short story "The Nonesuch", the human settlers of a planet inhabited by a telepathic predator solve the problem by [[spoiler: convincing themselves (and future generations) that the creature does not exist. When the creature tries to attack someone who sees it and refuses to believe that it's real, psychic feedback causes it to disappear until the would-be victim moves on.]]
* In the ''Literature/{{Goosebumps}}'' book ''The Haunted Car'', the evil ghost possessing the car is destroyed when she realizes that she accidentally did a good deed by unknowingly saving the boy she was trying to kill. She had used mind control to force the boy to get into the car, but before she can finally kill him she sees that his house had caught fire and he would have been dead already without her actions.
* Creator/NKJemisin's ''Literature/InheritanceTrilogy'': Godlings' power grows when they act according to their "[[OddJobGods affinity]]" and wanes when they act against it. When the God of Childhood learns that he's done something completely antithetical with childhood, [[spoiler:fathering a child of his own,]] he starts RapidAging to death.



* In Creator/LSpragueDeCamp's novella ''The Undesired Princess'', a logic expert is transported to a parallel world where only black and white logic applies to battle a dragon with logic. The dragon proposes the "cat of nine tails" paradox: no cat has nine tails; most cats have one more tail than no cat; thus most cats must have ten tails. As the hero deconstructs the fallacies within the paradox, the dragon slowly evaporites, literally disappearing in a puff of logic.
** The same character goes on to argue paradoxes with [[spoiler:the Greek philosopher Xeno]] who controls this world.

to:

* In Creator/LSpragueDeCamp's novella ''The Undesired Princess'', a logic expert is transported to a parallel world where only black and white logic applies to battle a dragon with logic. The dragon proposes the "cat of nine tails" paradox: no cat has nine tails; most cats have one more tail than no cat; thus most cats must have ten tails. As the hero deconstructs the fallacies within the paradox, the dragon slowly evaporites, literally disappearing in a puff of logic.
**
logic. The same character goes on to argue paradoxes with [[spoiler:the Greek philosopher Xeno]] who controls this world.
Is there an issue? Send a MessageReason:
Addition

Added DiffLines:

* In Creator/LSpragueDeCamp's novella ''The Undesired Princess'', a logic expert is transported to a parallel world where only black and white logic applies to battle a dragon with logic. The dragon proposes the "cat of nine tails" paradox: no cat has nine tails; most cats have one more tail than no cat; thus most cats must have ten tails. As the hero deconstructs the fallacies within the paradox, the dragon slowly evaporites, literally disappearing in a puff of logic.
** The same character goes on to argue paradoxes with [[spoiler:the Greek philosopher Xeno]] who controls this world.

Changed: 180

Removed: 774

Is there an issue? Send a MessageReason:
That's just Reality Breaking Paradox as it wasn't noticing the impossibility that caused it. No YMMV under non YMMV pages.


* ''Website/SCPFoundation'':
** The [[FridgeHorror horror]] behind [[Website/SCPFoundation SCP-]][[http://www.scp-wiki.net/scp-946 946]] is that it can do this - potentially [[spoiler: on a massive scale]], like [[spoiler: changing the laws of physics]].
** [[https://scp-wiki.wikidot.com/scp-3088 SCP-3088]] (a phenomenon where a small town's laws became more like laws of physics) was neutralized when the town's KnightTemplar mayor passed a law (that the MTF team the Foundation sent to investigate the anomaly were to be expelled from town for being troublemakers and trying to get him voted out) that directly contradicted a previous law (that no one in the town could leave). The paradox resulted in the entire town and its people (except for the mayor's house) vanishing off the face of the Earth.

to:

* ''Website/SCPFoundation'':
**
''Website/SCPFoundation'': The [[FridgeHorror horror]] horror behind [[Website/SCPFoundation SCP-]][[http://www.[[http://www.scp-wiki.net/scp-946 946]] SCP-946]] is that it can do this - potentially [[spoiler: on a massive scale]], like [[spoiler: changing the laws of physics]].
** [[https://scp-wiki.wikidot.com/scp-3088 SCP-3088]] (a phenomenon where a small town's laws became more like laws of physics) was neutralized when the town's KnightTemplar mayor passed a law (that the MTF team the Foundation sent to investigate the anomaly were to be expelled from town for being troublemakers and trying to get him voted out) that directly contradicted a previous law (that no one in the town could leave). The paradox resulted in the entire town and its people (except for the mayor's house) vanishing off the face of the Earth.
physics]].
Is there an issue? Send a MessageReason:
An example from hysteria already exists.


* An episode of ''WesternAnimation/{{Histeria}}'' has the kids annoying Rene Descartes so much he cries out that he can't think. The second he realizes this, he disappears.
Is there an issue? Send a MessageReason:
None


** The second book in the trilogy explains that if you are able to learn the trick of flying, the first thing anyone who sees you is likely to say is something along the lines of "My God, you can't possibly be flying" and it is vitally important not to listen to these people or they will suddenly be right.

to:

** The second book in the trilogy explains that if you are able to learn the trick of flying, flying,[[note]]Which the book specifically posits involves "falling but ''missing the ground''. Within the context of the story, Arthur trips, but during his short journey from standing to prone, he happens to notice a handbag that he had misplaced some time ago, and this distraction was what allowed him to miss the ground and take to the air.[[/note]] the first thing anyone who sees you is likely to say is something along the lines of "My God, you can't possibly be flying" and it is vitally important not to listen to these people or they will suddenly be right.[[note]]Similarly, while Arthur is aloft, he has to take pains to ''not'' acknowledge that he is flying, for the same reasons--to think about the fact that he is flying will cause him to think about the fact that he ''shouldn't be'' flying, and thus his flight would suddenly come to an end.[[/note]]
Is there an issue? Send a MessageReason:
None


** The TropeNamer, in which the Guide presents an argument against {{God}}'s existence. As the argument goes, God refuses to prove his own existence, because "proof denies faith, and without faith I am nothing." Man points out the Babel Fish as a "dead giveaway" - it's just too handy to have evolved naturally - causing God to vanish "in a puff of logic." The Guide then says that this argument has been universally rejected on the basis that it is [[LogicalFallacy profoundly stupid]]; just to start, the Babel Fish being made unnaturally doesn't mean God had to have made it. Of course, that doesn't stop in-universe writers such as Oolon Coluphid from cashing in on the argument.

to:

** The TropeNamer, in which the Guide presents an argument against {{God}}'s existence. As the argument goes, God refuses to prove his own existence, because "proof denies faith, and without faith I am nothing." Man points out the Babel Fish as a "dead giveaway" - it's just too handy to have evolved naturally - causing God to vanish "in a puff of logic." The Guide then says that this argument has been universally rejected on the basis that it is [[LogicalFallacy [[UsefulNotes/LogicalFallacies profoundly stupid]]; just to start, the Babel Fish being made unnaturally doesn't mean God had to have made it. Of course, that doesn't stop in-universe writers such as Oolon Coluphid from cashing in on the argument.
Is there an issue? Send a MessageReason:
None


* ''Doonesbury'' had two men, apparently identical twins, who were advocates for an unusual drug. In an interview, one of them says that one of its side effects was it that could "make your alter-ego visible". The other says "Wait - you're saying I'm only a side effect?" In the next panel, the first man says "the effects are only temporary," and the second has vanished.

to:

* ''Doonesbury'' ''ComicStrip/{{Doonesbury}}'' had two men, apparently identical twins, who were advocates for an unusual drug. In an interview, one of them says that one of its side effects was it that could "make your alter-ego visible". The other says "Wait - you're saying I'm only a side effect?" In the next panel, the first man says "the effects are only temporary," and the second has vanished.
Is there an issue? Send a MessageReason:
None

Added DiffLines:

* An episode of ''WesternAnimation/{{Histeria}}'' has the kids annoying Rene Descartes so much he cries out that he can't think. The second he realizes this, he disappears.
Is there an issue? Send a MessageReason:
None

Added DiffLines:

* ''WesternAnimation/ThePatrickStarShow'': In "[[Recap/ThePatrickStarShowS2E5MovieStarsDrSmartScience Dr. Smart Science]]", Patrick goes into space. Once Sandy tells him there's no water in space, he shrivels up.

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