History Main / NinetyPercentOfYourBrain

13th Feb '18 4:21:21 AM JackG
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* [[https://news.avclub.com/what-if-lucy-spawned-other-movies-about-stupid-common-m-1798270319 This spoof]] of ''Film/{{Lucy}}'' suggests Hollywood should make other movies based on inane common beliefs.
2nd Feb '18 12:33:23 AM jormis29
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* In ''My Stepmother Is An Alien'' the alien Celeste explains that "We use 104% of our brain capacity, as opposed to your 36%."

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* In ''My Stepmother Is An Alien'' ''Film/MyStepmotherIsAnAlien'' the alien Celeste explains that "We use 104% of our brain capacity, as opposed to your 36%."
14th Jan '18 12:55:18 AM Melkior
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** An old joke goes: An Englishman decides that he wants to become a naturalised Irishman, but he's told that in order to do so, he must have 10% of his brain cut out, leaving 90%. He goes ahead with the operation but when he wakes up, a doctor tells him, "I'm terribly sorry but we made a mistake. Instead of cutting out 10% of your brain, leaving 90%, we accidentally cut out 90% of your brain, leaving 10%." The man thinks about this for a minute, then replies, "She'll be right, mate!"[[note]]Said using an Australian Accent[[/note]]


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** An old joke goes: An Englishman decides that he wants to become a naturalised Irishman, but he's told that in order to do so, he must have 10% of his brain cut out, leaving 90%. He goes ahead with the operation but when he wakes up, a doctor tells him, "I'm terribly sorry but we made a mistake. Instead of cutting out 10% of your brain, leaving 90%, we accidentally cut out 90% of your brain, leaving 10%." The man thinks about this for a minute, then replies, "She'll be right, mate!"[[note]]Said using an Australian Accent[[/note]]
14th Jan '18 12:45:33 AM Melkior
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* A Silver Age ''{{ComicBooks/Superman}}'' story involved a computer which was supposed to be designed like a human brain (but was the size of a small room). Its creator explicity laments there being no power source "powerful enough to activate all its circuits at the same time" and wonders what it might be capable of if there were. Then he decides to program it with a human personality... by hooking it up to [[SecretIdentity Clark Kent's]] brain...


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** An old joke goes: An Englishman decides that he wants to become a naturalised Irishman, but he's told that in order to do so, he must have 10% of his brain cut out, leaving 90%. He goes ahead with the operation but when he wakes up, a doctor tells him, "I'm terribly sorry but we made a mistake. Instead of cutting out 10% of your brain, leaving 90%, we accidentally cut out 90% of your brain, leaving 10%." The man thinks about this for a minute, then replies, "She'll be right, mate!"[[note]]Said using an Australian Accent[[/note]]
10th Dec '17 6:48:40 PM gophergiggles
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This trope name comes from the oft-repeated but false assertion that humans only use 10 percent of their brains. In RealLife, we use ''all'' of our brains, just not all at the same time -- in much the same way you don't have every electronic/mechanical item in your home running at all times; you only turn things on when you need to use them. If you ever do find yourself with every part of your brain "on" at once, congratulations, ''you're having a seizure!'' [[note]]More precisely, seizures occur because parts of the brain start firing off randomly. In some general seizures, the entire brain can have neuronal activity at once for brief moments.[[/note]]

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This trope name comes from the oft-repeated but false assertion that humans only use 10 percent of their brains.brains, a misquote of ''How To Win Friends And Influence People''[[note]]"The average person develops only 10 percent of his latent mental ability"[[/note]]. In RealLife, we use ''all'' of our brains, just not all at the same time -- in much the same way you don't have every electronic/mechanical item in your home running at all times; you only turn things on when you need to use them. If you ever do find yourself with every part of your brain "on" at once, congratulations, ''you're having a seizure!'' [[note]]More precisely, seizures occur because parts of the brain start firing off randomly. In some general seizures, the entire brain can have neuronal activity at once for brief moments.[[/note]]
2nd Dec '17 10:06:46 AM SparkPlugTheTroper
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* Parodied in ''WesternAnimation/LesShadoks''. The Shadoks use their brain plenty, but they only have four boxes in their brain, and they can only know how to do up to four activities as a result; for example, if a Shadok knows how to ride a bike, and doesn't know how to read, and if their brain is already full, they'll have to unlearn how to ride a bike if they want to learn how to read.
21st Nov '17 11:33:51 PM PaulA
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* In the ''Series/DoctorWho'' [[Literature/DoctorWhoNewAdventures New Adventures]] novel ''All-Consuming Fire'', a character with psychic abilities (pyrokinesis, specifically) is discovered to have suffered a major head trauma that destroyed a large chunk of his brain. Bernice mentions the 90% thing, and speculates that the man's brain, in the course of rerouting around the damage, started using a previously unused part of the brain and activated the pyrokinesis.

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* In the ''Series/DoctorWho'' [[Literature/DoctorWhoNewAdventures New Adventures]] novel ''All-Consuming Fire'', ''[[Recap/DoctorWhoNewAdventuresAllConsumingFire All-Consuming Fire]]'', a character with psychic abilities (pyrokinesis, specifically) is discovered to have suffered a major head trauma that destroyed a large chunk of his brain. Bernice mentions the 90% thing, and speculates that the man's brain, in the course of rerouting around the damage, started using a previously unused part of the brain and activated the pyrokinesis.
12th Oct '17 11:00:51 PM johnsmithxxi
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* ''Series/MyFavoriteMartian'': Cited by "Uncle Martin" as one of the reasons Martians are so much more advanced and intelligent than human beings. Martians use all of their brains, while earthlings only use a small percentage of theirs.
11th Sep '17 7:38:26 PM Siggu
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[[folder:Music]]
* In the Music/LesLuthiers play ''Manuel Darío'', one of the people that is interviewed about the titular character is a psychologist. He has a theory in that people waste 50% of their mental capacity, and that [[StealthInsult Manuel Darío was mentally gifted]] ([[UnreliableNarrator or at least it's what Manuel Darío thought he said]]) because he wasted '''100%''' of his mental capacity.
[[/folder]]
18th Aug '17 6:21:12 PM ZerroDefex
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** It was not a railroad spike but a tamping rod, something much bigger and the explosion literally caused it to rocket through his skull and land on the ground some distance away. His coworkers assumed that he was dead until he started talking and tried to get up like nothing had happened.
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http://tvtropes.org/pmwiki/article_history.php?article=Main.NinetyPercentOfYourBrain