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We go through life and learn each day, but sometimes we can be factually wrong in what we believe. Research shows that we tend to embrace information that supports our beliefs, even when it's wrong, and scientists call this "confirmation bias." Sifting through what's true and not can be especially hard online; luckily, there are communities that help debunk common misconceptions and myths.

The "Learned Wrong" is a subreddit dedicated exactly to that, with a mission of "Clearing up misconceptions and outdated information you might have been taught across history, science, [intimacy], health, and more."

From serious science stuff like myths about the ozone layer, to more light-hearted ones like our teachers telling us we won't always have a calculator in our pockets or how periods really work, here are the most interesting things people have unlearned thanks to this online community.

More info: Reddit

#1

Most Women Probably Won't Care Either

Text conversation discussing male privilege related to wearing the same outfit multiple times versus women's dress choices

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    #2

    Some Of Y'all Learned Wrong That Society Totally Forgot About The Hole In The Ozone Layer

    Tweet explaining ozone layer recovery from chlorofluorocarbons

    unlearning_myths Report

    Blix
    Community Member
    15 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I've yet to hear Matt Walsh say something smert.

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    #3

    I Learned Wrong That Everyone's Forgotten After 3 Generations

    Text about being forgotten in three generations with a comment on a family legal anecdote

    unlearning_myths Report

    David
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    well some people just leave that big of an impact on society. My Great-Great-great-great grandmother is written up in some history books. She left an impact in her time, and scholars writing on that period of that place, need to mention her

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    #4

    How To Never Work A Day In Your Life

    Graduates in purple gowns at ceremony with caption about choosing a major and job market

    unlearning_myths Report

    David
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Sadly too many people choose degrees that have few or no jobs. Do a practical degree with a second major in what you like. We graduate 2x more english majors than jobs that require it, 8x more gender studies than jobs for it, while a shortage of engineers, math, PA, NP, etc. Unless you plan to go to law school or med school (doing the pre-reqs), do a degree that will lead to a job. Or go into the wonderful world of the Trades where we need and can earn well as a welder, Plummer, electrician, etc. We have a 1.1 million deficit in the US for the skilled trades. Most can be done in 14-24 months, with much lower costs and debt than college.

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    #5

    I Learned Wrong That "News" Stands For "Notable Events, Weather, And Sports"

    Tweet debunking that NEWS stands for notable events weather and sports

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    #6

    I Learned Wrong That Puerto Rico Isn't Technically Part Of The US

    Tweet listing non-US citizen Super Bowl halftime performers

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    LakotaWolf (she/her)
    Community Member
    Premium
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Puerto Rico is an unincorporated territory of the United States. "Under the Jones-Shafroth Act of 1917, all individuals born in Puerto Rico are granted natural U.S. citizenship, entitling them to American passports and the same rights as those born in the 50 states." As an American growing up in the 80s/90s, I remember that Puerto Rico was sometimes jokingly and affectionately called "the 51st state". It's saddening to me that some of my fellow Americans refuse to acknowledge that people born in Puerto Rico are American citizens just like they are.

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    #7

    I Learned Wrong That Botox Makes You Look Younger

    Tweet about botox making one look similar to others of the same age

    unlearning_myths Report

    LakotaWolf (she/her)
    Community Member
    Premium
    13 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    My mom is 82 and has been getting Botox for years. She looks exactly like an 82-year-old who has gotten Botox and many many other plastic surgeries XD

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    #8

    This Isn’t How You Should Be Washing Your Face???

    Person splashing water on face showing facial cleansing with Neutrogena

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    #9

    People Didn't Only Live Until They Were 30 In The Past

    Life expectancy myth and infant mortality in ancient Rome

    candcaviar Report

    David
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    If you lived past 10, average age in ancient Rome or Medieval period was 58-63. Average age in the poorest parts of the developing world today is 63. And yes, old people were around, even people hitting 100 happened, but it was rare. Basically most people lived to late 50s to mid 60s back then.

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    #10

    This Guy Learned Wrong That Menstrual Pain Is A Myth

    Twitter conversation dismissing menstrual pain as a myth

    unlearning_myths Report

    #11

    I Learned Wrong Back In Elementary School That Christopher Columbus Was A Hero Who Did Nothing Wrong

    Meme about menstrual pain myth highlighting misconceptions in American textbooks

    unlearning_myths Report

    Roman Arendt
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Upvote for Mona-Lisa! Oh, and the Columbus stuff, of course. 😅

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    #12

    Dinosaurs Weren't All Scaly Reptiles. Some Actually Had Feathers Or Feather-Like Coverings

    Text discussing the discovery of feathered dinosaurs and paleontology myths

    SomeEpicName Report

    Catlady6000
    Community Member
    13 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Just picturing a T-rex strutting his tail feathers

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    #13

    Today I Learned White Claws Aren’t Energy Drinks

    Tweet about misunderstanding White Claw as energy drink with DUI pun

    unlearning_myths Report

    Jo Kidd
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Sounds like an alcoholics excuse to consume his favorite tipple!

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    #14

    Nobel Prize Winning Economist Paul Krugman

    Paul Krugman quote on internet's limited economic impact in 1998

    lilbasedgsus Report

    David
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    to be fair, his Nobel Prize work was all stuff published between 1989 and 1995, and he hasnt published in a tier 1 or 2 journal since 2002, and is considered a joke in his profession as the guy who was a has been in his 40s. His work was also derivative of Jagdish Bhagwati, whom members of the Nobel committee admitted he should have had to share it with, but for political reasons gave it solo to Krugman, and then Krugman in his acceptance speech didn't even recognize or thank Bhagwati.

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    #15

    "You Won't Always Have A Calculator In Your Pocket"

    Meme showing 90s teacher quote about calculators and current reaction

    SomeEpicName Report

    David Paterson
    Community Member
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Going back one generation before mine. "Children must be taught to write on slates because there won't always be paper around to write on".

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    Never miss a story that brings joy to the world. Follow on Google News

    #16

    Being Cold Won't Directly Give You A Cold. Colds Are Caused By Viruses, Not By Temperature

    Text explaining common cold causes, debunking cold weather myth

    unlearning_myths Report

    Remi (He/Him)
    Community Member
    13 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    A recent study showed that cold nose means weaker immune system in the area, so you might be more right saying, people catch colds easier when the air is cold. Also cold weather means people spend more time indoors coughing at each other

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    #17

    People Do Not Swallow 8 Spiders A Year While Sleeping

    Text debunking the myth about spiders crawling into sleeping humans' mouths

    unlearning_myths Report

    Xandra
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I, for one, am very glad this is just a myth!

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    #18

    Shaving Doesn't Make Hair Grow Back Thicker. This Was Disproven Almost A Hundred Years Ago. This Myth Might Exist Because Newly Grown Hair Can Look Thicker

    Myth of hair regrowth being thicker after shaving explained

    unlearning_myths Report

    LakotaWolf (she/her)
    Community Member
    Premium
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I remember hearing this all the time as a girl/teen. Expected to shave my legs as a female because leg hair on girls is gross, but also don't shave it because it'll grow back in thicker! XD

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    #19

    Til The Great Wall Of China Is Not Actually Visible From Space, It's Just A Myth

    Aerial view of mountainous landscape with snow patches and valleys

    Guilty_Writer3165 Report

    Bob Brooce
    Community Member
    9 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Kind of ironic that this one uses what's presumably a (zoomed in) satellite image showing the great wall.

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    #20

    I Learned Wrong That Bats Are Blind. Bats Do Use Echolocation To Locate Prey, But It's Supplementary To Their Vision (Which Works Quite Well) Rather Than A Replacement

    Text explaining bats are not blind and have vision advantages

    nlearning_myths Report

    Cintya T
    Community Member
    11 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Probably people assume echolocation replaces sight, but bats can see up to three times better than humans in low light and even detect ultraviolet wavelengths invisible to us.

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    #21

    Vikings Didn't Actually Wear Horned Helmets. That Image Was Based Off 19th Century Art Rather Than Actual Archaeological Findings

    Horned helmets predate Vikings and likely originated in the Bronze Age Mediterranean

    unlearning_myths Report

    David Paterson
    Community Member
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    According to QI, most Viking raiders didn't wear helmets at all. They wore beanies.

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    #22

    Breakfast Isn't The Most Important Meal Of The Day For Everyone. It Only Might Be For People Who Need Extra Energy In The Mornings. Research Shows That Overall Nutrition Is More Important Than When You Eat

    Text discussing benefits of eating breakfast supported by studies

    unlearning_myths Report

    Remi (He/Him)
    Community Member
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    A kid skipping breakfast might do so because the parent(s) aren't providing one. If that's true, the kid is also less likely to have parental help with studying which leads to poorer test scores.

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    #23

    Wydm People Irl Don’t Go From Dorky To Hot Just From Taking Off Their Glasses??

    Tweet about 90s teen television and makeover montages disappointment

    SomeEpicName Report

    Little Bit
    Community Member
    58 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    When I take my glasses off, I don't look hot. I look stupid because I can't see what the hell I'm doing.

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    #24

    I Learned Wrong That The Moon Has No Gravity

    Online discussion debunking moon gravity myth with detailed explanations

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    #25

    Turkey May Not Have Actually Been Eaten At "The First Thanksgiving" In 1621

    Turkey myth origin in Thanksgiving history and Sarah Josepha Hale's influence

    unlearning_myths Report

    Nicky
    Community Member
    12 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Popcorn is an indigenous dish so anyone who can't cook can bring it to Thanksgiving! (I have a Ph.d in American history btw so this is true!)

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    #26

    I Learned Wrong That Marie Antoinette Said "Let Them Eat Cake" About The French Working Class. The Actual Line Was "Let Them Eat Brioche" And Written By Philosopher Jean-Jacques Rousseau In His Autobiography Who Attributed It To An Unnamed Princess

    Text explaining the myth about Marie Antoinette's quote and historical misattributions

    unlearning_myths Report

    Apatheist
    Community Member
    6 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    There's no evidence that she said the brioche thing either.

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    #27

    Just One Space Is Fine

    Tweet explaining two spaces after periods is outdated for typewriters

    unlearning_myths Report

    Blix
    Community Member
    15 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I disagree with this, only because reading a multi-sentence paragraph is easier (less dense) if there are spaces between sentences. No one likes a wall of text.

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    #28

    I Learned Wrong From Nintendo That Mario And Peach Are Just Friends

    Image of Mario and Peach with caption denying they are a couple

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    #29

    I Learned Wrong That Forgetting Your Password Is Weakness

    LinkedIn post on intentional reset and mindset shift for password forgetting

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    Gail Lott
    Community Member
    Premium
    11 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I keep telling my mom that she’s lived a long time and experienced a lot of stuff. That’s data. The more data you have the more likely it is it will take longer to find that specific piece of data. Plus she’s always been a little lala and forgetful. Her absentmindedness is not new. lol

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    #30

    Sugar Doesn't Directly Make Kids Hyper. Eating Sugary Foods Is Associated With Activities Where Kids Are Typically Hyper, Such As Birthday Parties

    Scientific text on the myth that sugar causes hyperactivity in children

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    Geoffrey Scott
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I know from experience though, that 'fruit' punch (red), does wind them up a bit.

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    #31

    Eating Carrots Won't Help Improve Your Vision. Carrots Help Maintain Overall Eye Health, But Won't Make You See Better In The Dark

    Vitamin A in carrots helps in vitamin A deficiency but doesn't improve general healthy vision

    unlearning_myths Report

    Gavin Johnson
    Community Member
    14 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Propaganda to cover up our development of radar. The RAF put it about that night fighter pilots had a carrot rich diet to help them see German night bombers. In reality they had radio contact with WAAF members who directed them onto the incoming bomber stream. Later the radar systems were smaller and fitted to the aircraft. Carrots are very nice though, especially dipped in hummus.

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    #32

    I Learned Wrong That Hip Dips Are Caused By Weight Or Are A Deformity. Turns Out They're Pretty Normal, Common, And Can't Be "Fixed" By Workouts

    Close-up of woman wearing blue leggings with circles drawn on hips

    unlearning_myths Report

    cerinamroth
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I can't understand why anyone would be bothered about such a thing. Your body tells a story, and everyone's story is different. Don't judge your own body, or anyone else's. Thank it every day for getting you through life, and treat it with kindness.

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    #33

    I Learned Wrong That Bulls Charge At Matadors Because The Flag They Wave Is Red. The Color Doesn't Matter, Only The Motion

    Matadors holding red and yellow capes facing a bull in an arena with audience

    TIL that Bulls don’t actually hate the colour red. In Bull fights, they don’t charge at the cape because of its colour, but because of the motion it makes when the matador waves it. The cape is just red to mask the bloodstains from the fight.

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    #34

    The Pilgrims Didn't Actually Wear Black Clothing With Buckles On The Regular. They Usually Wore Colorful Clothing. The Black Clothing Mainly Came From How They Were Depicted By The Victorians

    Pilgrim clothing myths debunked with insights from Ripley's Believe It Or Not

    unlearning_myths Report

    Nicky
    Community Member
    12 hours ago (edited) Created by potrace 1.15, written by Peter Selinger 2001-2017

    Puritans liked red clothes. They also used a bundling bed to allow couples to get aquainted before marriage. "Oh she is fair, and oh so chaste, though she is bare from her head to her waist."

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    #35

    The English Spelling Rule "I Before E Except After C" Doesn't Hold Up As Much As You Were Taught It Does. There's A Ton Of Exceptions: Science, Height, Their, Protein, Caffeine, Vein, Beige, Neighbor, Weird, Seize, And Many Others Break This

    Common spelling exceptions explained from Merriam-Webster dictionary etymology

    unlearning_myths Report

    Geobugi🇰🇷🇰🇭
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Oh please, stop it! I struggle with correct spelling allready! 😩

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    #36

    The First Thanksgiving In 1621 Wasn't Just A Celebration Of Gratitude And Friendship Between The Indigenous Folks (Wampanoag) And The Pilgrims. The Wampanoag Were Mainly Motivated By Securing An Alliance For Self-Defense

    Text debunking the myth of a peaceful First Thanksgiving and colonial Wampanoag relations

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    #37

    Still Eating Your Halloween Candy? The Chances Of It Being Poisoned Are Way Lower Than What You’ve Probably Been Taught, But Not Zero

    Tweet humorously linking Halloween candy to Microsoft Teams logo

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    #38

    Jesus Might Not Have Actually Been Born On December 25. No Official Record Of His Birth Has Been Found. There Are Multiple Theories As To Why December 25 Was Chosen

    Origins of December 25 as Christmas date from biblical archaeology and early Christian traditions

    unlearning_myths Report

    Jo Kidd
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    The bible is only an interpretation&some interpretations get lost in translation

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    #39

    The Pilgrims May Not Have Initially Landed At Plymouth Rock In 1620. The Actual Landing Place Hasn't Been Found Yet

    Historical evidence lacking for Plymouth Rock as Pilgrims landing site

    unlearning_myths Report

    AndyR
    Community Member
    6 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    So critical thinking was looking a bit sorry for itself as far back as 1741...

    #40

    The Indigenous Mexica People Did Not Believe That Spanish Explorer Hernán Cortés Was A God

    Misinterpretation of Aztec words causing belief they thought Spanish were gods

    unlearning_myths Report

    Geoffrey Scott
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Ahhhh...THAT'S where the MAGAtics got it from. Though being that is from what they deem 'inferior races', I doubt it.

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    #41

    You’ve Been Buying IKEA Furniture Wrong

    Funny tweet about avoiding IKEA furniture by emailing for missing pieces

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