Throughout our human existence, we have collectively accumulated concepts and information that an average person is typically supposed to be aware of, better known as general or common knowledge. Like, for example, the fact that the Earth revolves around the sun or that a week has seven days. However, due to our different backgrounds, upbringings, educations, professions, and many other factors, what we think encompasses common knowledge can hugely vary.Many people assumed the facts you’ll find below were common knowledge but were surprised to learn otherwise. Scroll down to see them for yourself, and be sure to upvote those that caught you off guard.
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Vaccines are safe and effective.
If, as a country you wanna play safe, you make them mandatory. People are idiots.
The on-ramp is for accelerating to highway speeds *before* you reach the highway.
Vaccinations do not cause autism and never did.
"Denmark, … removed thimerosal from childhood vaccines in 1992 … Researchers compared the rates of autism before and after thimerosal’s removal … studies demonstrated conclusively that thimerosal was not causing autism or neurodevelopmental harm" so of course "A federal vaccine panel, recently reshaped by US health secretary Robert F. Kennedy Jr., has voted to discourage the use of flu vaccines containing thimerosal" https://theconversation.com/thimerosal-discouraged-in-us-flu-vaccines-breaking-with-who-guidance-259609
In an academic environment, common knowledge refers to “information generally known to an educated reader, such as widely known facts and dates, and, more rarely, ideas or language,” according to Harvard University.
This information shouldn’t need a citation backing it up for the average educated reader to understand it. “Widely known scientific and historical facts—such as the molecular structure of water (H2O), or that Andrew Jackson was the seventh president of the United States—generally count as common knowledge. You can include such facts in your writing without citation and without fear of committing plagiarism,” the educational institution further instructs.
*Should have* / *would have* / *could have* = the contractions *should’ve* / *would’ve* / *could’ve*
It’s not *should of* / *would of* / *could of* - those word combos make no grammatical sense.
Not everyone's disability is visible. Just because someone parks in a handicap spot then gets out and walks in without you being able to tell why they're handicapped doesn't mean they don't deserve that placard.
Very true, and also young people can have disabilities (directed at all the older people who give them dark looks when they sit in public transport)
This! My little sister has chronic fatigue syndrome. She's thirteen and has issues walking (my mom won't let her use a cane/walking stick, she doesn't want her "accessorizing her disability") so when we went to the store, she used a motorized cart. She was so embarrassed and felt like people were judging and staring. I had to reassure her that she was fine and that her condition wasn't everyone's business and what mattered was her and her health.
Load More Replies...My best friend has multiple health conditions that boil down to her needing to sit or lie down after about 30 minutes walking from the pain. Just because you can walk in doesn't mean you are ok. Her condition means exercise is out of the question and people assume she's just lazy because she's overweight instead of being overweight because of her condition.
If you have the plate (or the placard), park in the space. If you don't, don't. I fail to grasp why this is difficult (and why Karens feel the need to interfere).
If the non disabled person wants the parking spot should also take the disability as well
A chain of supermarkets in France put up signs by the disabled parking that says exactly that.
Load More Replies...I am 70 and tall and slender who swims everyday. I look great. But I have five herniated disks in my spine and standing causes great pain. You cannot see that.
My 15m child is epileptic. Has a big siezure at least once a week. We use the handicap area because I have to carry him to the car if it happens while we are out.
Just because I don't use my cane to get to the store doesn't mean I don't need it to get back to my car.
Sometimes when I arrive at a store/mall, I feel great and park in a regular spot. Getting back to the car after shopping is another thing. Then I wonder why I didn't use the placard.
My father had COPD and couldn't walk more than a few metres. Not visibly disabled though.
My son has cystic fibrosis, it is a genetic condition that causes thick secretions within the body, there is no outward show of the disease apart from some mild clubbing of the fingertips and toes which is hardly noticeable
I have a placard for my dad, who uses a wheelchair. Although I never take the placard out of my car, I do not use handicap spaces if my dad is not with me. It is amazing the people who can’t believe I won’t take advantage of that.
True, but if you are fully ambulatory why do you need the close parking space.
Just because someone can walk, it doesn't mean they're walking easily (e.g., might be an amputee with pain around where the prothestic attaches), and even if they are walking easily right now, it doesn't mean they will still be walking easily in 5 minutes (e.g., chronic lung conditions can greatly reduce the distance a person can easily walk).
Load More Replies...Made a dumb comment due to not reading carefully, in case anyone's wondering.
Load More Replies...And not everybody, who looks relative young should jump to give up his/her seat on public transport, when you enter it at around 22.00 with your elderly -60-70 years old- group coming visibly from a nice evening out. laughing and chatting, but the moment you see me sitting, you starting gaving the side looks. Like Fck you, b.itch, I was standing 9 hours to prepare the food for your evening-out, so yes I'm tired. And I will be sitting the whole 12 minutes ride.
You self-entitled little p***k! How many hours do you reckon *they* stood and prepared food for the likes of you, when they were young? How many hours of abuse do you think they put up with, when they were young and working their fingers to the bone to feed their families? They've done their yards, they've earned some rest, respect, and consideration! Just remember... one day YOU will be old, forced to standing on public transport, looking askance at self-entitled little pricks like you, because "you're tired"! How do I know this? Because I'm 78, and been there... and done *that*! Trust me, it's not nice when some little self-entitled flibbertigibbet sits there staring insolently at you, while you stand! I DO so hope you're lucky enough to find out (/evil laugh: exits stage left)
Load More Replies...this isn't my problem. it's the other folks who have no applicable license plate, placard, or hang tag parking in handicapped spots. you're right that there's no way for us to really know why someone needs that spot if they indeed have those credentials. but folks who do not have them and hop right out of the car as if all of their limbs work? nope. i have relatives who really do need those spots and it burns me up when able-bodied folks are parking there "just for a second" or because "honestly who cares about these 'made up rules'".
Knowing whether something is common knowledge can be tricky. Therefore, Scribbr, a company that provides a range of academic services, suggests asking yourself a few questions before assuming something is common knowledge. Like, for example, ‘Who is my audience, and what can I assume they know?’ In case your audience has knowledge in the same field as you, you probably can get away with assuming they know more than an average person.
Basic Geography.
Not being able to point out Turkmenistan on a map is one thing.
Not being able to point out the Pacific Ocean on a map is another.
But thinking you can just rename of the Gulf of Mexico is whole different level of ignorance.
Africa is NOT a country, its a continent.
It’s amazing how many Americans think that New Mexico is part of Mexico and not a U.S. state.
That the IRS will never request payment via iTunes gift cards.
Ask yourself - what is the US Treasury going to do with iTunes gift cards?
If you think your addressee might be surprised by the information you present or question its accuracy, then it probably isn’t common knowledge. Another indicator of information not being known to everyone is if it can’t be easily verified with a quick Google search. No piece of common knowledge has to be dug out of the depths of the internet or other databases.
That using your blinker while driving a motor vehicle is helpful to indicate to other drivers where your dumb a*s may be going.
And it should come on *before* you change lanes or put on your brakes.
That you shouldn’t be rude to customer service or the cashier cuz it’s not their fault that the item is expensive.
How to use a d**n roundabout, apparently.
Knowing when a piece of information is common knowledge or not isn’t only useful in academic environments but also in everyday life. It can help you better communicate with others if you aren’t assuming they know everything you know. It’s easy to fall into this assumption trap, as we can possess a cognitive bias called ‘knowledge curse’ that makes it difficult for us to imagine others not knowing something we know and have learned.
That antibiotics k**l bacteria, but won't do anything against viruses. Everyone has the idea that if you get a cold, you see your doctor and get antibiotics. Take some acitaminophen/paracetamol and ibuprofen, and stay away from other humans for a while!
Correlation does not equal causation.
This is so lost on people in the US that even reputable news outlets, journalists, academics, and politicians forget it, and they will cite statistics without adjusting for variables. So, whenever I hear something like, "Mortality rate of Black pregnant women is higher than white women," I want to hear, "after adjusting for other variables such as income and address" (which very sadly happens to be true). But very, very often, there is no adjusting.
That there are no tigers in Africa. I was on safari in Tanzania and two others in the truck were discussing how excited they would be to see tigers. I told them there weren't any and they looked all disbelieving and crestfallen, like I was spoiling their fun. They had to check with the guide.
Ironically, the curse of knowledge makes it difficult for people to share their knowledge because they fail to empathize with their level of knowledge. It significantly affects how information is communicated, which can be an issue for educators and experts in particular. They might struggle to convey complex concepts to their audience because they struggle to imagine what it’s like for others not to have the depth of knowledge they do.
Just because eggs are sold in the dairy section doesn’t make them a dairy product.
I’ve heard people say they don’t eat eggs because they don’t eat dairy.
Tell me, you are from the USA, without telling me, you are from the USA.
That whales are mammals that used to be on land but evolved to swim instead.
I had an art teacher that just didn't believe me when I told her that they're not fish.
Pakicetus was the last land based ancestor. The transitional fossils show, that over time, the nostrils slowly migrated from the tip of the nose, to where they are seated on modern whales. It's one of our best examples of evolution over time.
Fortunately, the curse of knowledge can be overcome. The first step toward it is to embrace empathy. Practicing perspective-taking and putting ourselves in others’ shoes can help us gauge how to communicate and explain information to others better. Next is simplifying and clarifying the way we communicate with others. Complex ideas should be broken down into smaller, more manageable chunks and illustrated with examples.
That narwhals exist/are real. People have thought that I was trolling them by talking about a mythical unicorn-whale.
A potential terrorist attacker in London was thwarted by a fella who grabbed a narwhal tusk and fought him off
If your wipers are on, your headlights should be on.
To be fair. ALL CARS...no matter the country should have DRL - AKA: DayTime Running Lights....AKA: ALL CARS should just run their lights all the time automatically. The Safety completely out weighs the cost of any bulb replacement. And modern LEDs last a long time.
That a lot of people didn't know what a tariff was.
To ensure that the communicated information was clear, the speaker should also encourage questions and feedback from their audience. If there are any knowledge gaps left, the person can then clarify the information, providing the missing puzzle pieces. Remember, clear, concise, and accessible communication can bridge people’s knowledge levels, which can result in an environment where information, inclusivity, and innovation can thrive.
That something being "organic" doesn't mean it is extremely healthy.
Not extremely healthy. But most likely the strawberries from an "organic" farm will be healthier than strawberries from a farm that uses pesticides. And "organic" farming will be way better for soil and ground water, thus for living beings (like humans) on the long run.
Taking out your credit/debit card / cash out before you are asked to by the cashier / checkout staff saves time for everyone, rather than looking shocked that you have to pay for your shopping.
It is so nerving. You are staying in that freaking check-out line for at least 1 minute. Planty of time to be not shocked, that you have to pay.
Tax brackets. You won't end up paying more in taxes than the extra income if you go up a bracket. Only the income ABOVE the cutoff is taxed at the higher rate, not your total income.
I had to explain this to a guy in his sixties, literal years away from retirement.
Don't pet service dogs. I used to think everyone knew this, until I got one.
Don't pet them, talk to them, make kissy noises, bark at them (grown a*s adults barking at service dogs is shockingly common), whistle, clap, none of that s**t. Do not do anything to deliberately draw the dog's attention.
If they are distracted, the handler could get hurt or even die. Not exaggerating. If a medical alert dog misses an impending medical emergency, the person doesn't have time to get into a safe position or take rescue medications. If they have a seizure or slip into a diabetic coma or something because you distracted their service dog *it is your fault.*.
Service dogs are working. Chat them up only when they're on their cigarette breaks.
How to stay in one's own lane when turning from one street to another.
The passing lane is for PASSING, not for your leisurely drive under the speed limit.
That WWI and WWII were real and separate events that really happened, not just movies. Talking to her was deeply painful.
That birth control is not 100% effective, even an IUD. Even your tubes being tied or a vasectomy.
THAT BIRTH CONTROL DOES NOT PROTECT FROM STI'S.
Yes you can get pregnant having s*x on your monthly.
No formula is not better for the baby than breast milk.
And my mother in-law takes the cake: Yes, women do in fact create and birth boys.
(To clarify - we were driving one day and she very seriously and flat out said to me that she was confused how she made a son because she's a woman.).
🤷🏻♀️ If women don't create boys and guys can't get pregnant, where do boys come from? She kind of hadn't thought it though...
That the vast majority of telecommunications traffic between countries is carried via undersea fiber optic cables.
Russian commercial ships and tankers love dragging their anchors along the sea bottom exactly where these cables are in Finnish Gulf. Silly coincidence.
I work in IT and I’m constantly helping people who:
•Don’t know what the Windows key is.
•Don’t know Internet Explorer/Chrome/Firefox are web browsers.
•Making your password your name is a really poor choice.
My pal, Pete Tzsecmerntispwwkeski. disagrees about the password one.
Everyone seems to get close to wild animals for pictures and think it’s ok. We are not all one with nature and animals like their space and don’t trust you.
Also, pissing off the Queen's Guard horses, is also not a good idea. They would bite and kick the soul out of you. And they are trained. But not for stupid tourists.
The Guinness book of world records is actually made by the beer company. It started out as something they gave for free to pubs who stocked guiness to help resolve pub bets between friends.
Alcohol has calories.
I had to be the one to tell my friend when she was in her mid-20s that the vodka she loved has calories. She was so shocked and said, "What!! I thought since it was clear like water it didn't have any calories.".
And vodka can be smelled on the breath. You can think that drinking some clear alcoholic drink won't be detectable, that others can't smell it, but it does have an odor, just not as strong as, say, whiskey or gin or beer. And your sweat smells like alcohol too
You have to look at the toilet paper after wiping to determine how much p*o is left on your butt.
You also have to touch your b******e with the paper.
No, it is not "gay" to clean yourself.
Once, I was speaking with a 85% blind man about this issue (don't ask, how it became a subject of conversation). He said, at first, when gradually lost his vision, he went with "the feeling" and further experience of his own. Today, he installed a bidet in his bathroom, after some bad experiences.
When my 50 year old sister was asking how the stars can reflect sunlight at night when the earth should be blocking it.
I have never recovered from that question.
P.S. I study astrophysics as a hobby my entire life.
That margarine isn’t butter...it hurts my soul when people refer to margarine as butter.
Also, margarine is not "one molecule away from plastic" and I don't care what that Facebook post told you.
That all cows are female. Male animals don't have milk-producing udders, *Sean*. The male version of a cow is called a bull.
Incidentally, I recently learned there's no common genderless word for a member of that species. There's "cattle" for a group of them, but nothing for an individual.
Last year i was walking home with a friend at night when my friend says " woa look at that star, it shines brighter then the rest" so i say, "yeah, it is probably a planet". He refused to belive me when i said you can actually se other planets from earth. The next day he would not stop talking about it. Apparantly he had been googling it all night.
Well that's really cool that he went and educated himself instead of doubling down!
I've seen some Jimmy Kimmel skits where people are asked where certain well-known places in the world are, like "Where is Australia? Where is Africa?" And they literally can't point to them on a map; or they think Africa is a country. I just don't understand how people don't know this stuff.
"War is God's way of teaching Americans geography." - Ambrose Beirce
A surprising number of people don't realize you SHOULD NOT flush hygienic products down the toilet. If it doesn't eventually back up your own pipes it will create massive blockages in the public sewer. I had to explain this to a friend in her mid-20's, I was like "Why do you think there's little trash cans on the wall of every women's stall!?!?"
I have a plumber friend. He can tell horror stories. But the worst are not the tampons or diapers flushed down. They are the oil. Yes, the oil, what you are using for cooking.
That properties in monopoly go up for auction if the person who landed on it doesn't want to or can't afford to buy it.
And the person who landed on it is eligible to participate in that auction.
Basic principles of finance (budgeting, interest, debt, saving, etc).
(!) Don't buy anything with your credit card that you can't pay off in full when the statement arrives. (2) Buy a car you can afford, not one that looks good. You won't see the outside when you're driving, and all the insides basically look alike. (3) Your house is an investment, but choose one you'd live the rest of your life in. (4) "Compound interest is the most powerful force in the universe." - Albert Einstein
A "screen saver" is the animation (or blankness) that pops up on your computer when you don't use it for a while, to **save** your **screen** from getting burned-in.
The background picture that wallpapers your desktop is the "wallpaper".
"Righty tighty, lefty loosy". A 35 year old man had never heard of it.
I only heard that mnemonic fairly recently and I'm a lot older than 35. I'm also a Brit. 😁
North is a fixed direction, not just the way you happen to be facing at any given moment.
That generic products are generally made in the same factory as the namebrand.
But not always to the same standards. Store brands are also made on the basis of a "price point" - the amount the store chain is willing to pay for it, which can effect quality.
The flu is not just another cold, and you can’t use the words interchangeably. Many people have never had the flu, or felt that unwell. The flu will knock you on your a*s.
Many people have never had the flu? That sounds extremely unlikely. In Europe: "It is estimated that up to 20% of the population are infected with seasonal influenza each year." That would mean that if it was distributed equally, you'd have it once every 5 years. So surely there can't be many people who've never had it. Also, it doesn't have to knock you on your a*s at all, in fact you might not even notice you have it: "it has been estimated that around 65-85% of people with flu do not show any symptoms at all."
There is gravity everywhere. On the ISS the gravity is only a bit less than it is on the surface of the earth. The reason the astronauts float around isn’t because there’s no gravity; it’s because they’re in a state of free fall.
"For all intents and purposes" being b*********d into "For all intensive purposes".
My friend had his address written on a a keychain with his house key. I explained to him that this was a bad idea and everyone around me thought I was a wizard.
…why?! If you loose it maybe someone with not-so-good intentions might enter! Omg i sound like my mother-
A girl at my work was talking about her bucket list. Near the top was "I want to visit all the ancient wonders of the world."
She was *crushed* when I told her all but one have been destroyed.
You're allowed to start a sentence, even a paragraph, with a conjunction for the sake of emphasis.
I've had multiple people try to correct that, and then I'll show it to a professor and be like "This is grammatically correct, right?" and they'll say "Of course.".
Same with the so-called rule against ending a sentence with a preposition. It's a lot of nonsense up with which you should not put.
Money disappears when you spend it it’s not magic.
Also, just because you still have available credit on your card doesn't mean you should keep putting things on it. That how you get in to massive debt. Ask me how I know! Luckily I was able to get myself out of it and I currently live completely debt free. It was a hard lesson though and took a long time to fix.
That you had to finish antibiotics even if you feel better or you risk bacteria coming back stronger and more resistant. Glad I warned my friend, didn't want her to get even sicker or cause a pandemic.
That in order for an aspirin to help 'save your life' while having a heart attack, you need to chew it.
Aspirin is a minor blood thinner with a slight calming effect on the heart. If you are having a heart attack, it's way too late for aspirin! Depending on the circumstances nitrostat may help buy you a few minutes, but to have that, you have to already be a cardiac patient. If you are over 40, see a cardiologist annually. Much better to prevent a heart attack than to have one! I learned the hard way.....
When people say “drink the kool aid,” and don’t know where the expression came from.
https://en.wikipedia.org/wiki/Drinking_the_Kool-Aid. Reports state that the Jonestown cult murder-suícide event involved drinking Flavor Aid. https://en.wikipedia.org/wiki/Jonestown#Deaths_in_Jonestown
There are 5 oceans. People around my age and older (25+) only seem to think there are 4. Atlantic, Pacific, Indian, and Arctic. Well guess what? In the year 2000 they decided they were gonna name another ocean. So the Southern Ocean is the 5th ocean.
The ocean that no one told us about.
There really is just one ocean, but we like to give parts of it a name.
Don't p**s on a jellyfish sting.
Edit: If you don't know where I got this from, people trusted that episode of *Friends* as knowledge. Also, you are supposed to do it for a Portuguese Man o' War as a second option if you don't have vinegar or something else. Also, a Man o' War is not a type of jellyfish. That should help explain what I mean.
**Extra: Don't p**s on a jellyfish, sting.**.
The difference between than and then. I seriously thought that when I heard people using the wrong one it was just due to their accent.
Considering that many people pronounce them more or less the same, “hearing” someone use the wrong one strikes me as an infrequent occurrence.
When I mentioned wanting a hard-drink as opposed to a soft-drink. They did not know the correlation between alcoholic and non-alcoholic beverages.
That's why you see Mike's Hard Lemonade, which is lemonade with alcohol in it. And alot of Hard Seltzers now. Idk the alcohol content, and I know some of them are malt liquor not spirits like vodka and rum
If you're entering a venue that requires a ticket to be scanned for entry, someone without a scanner can't let you enter.
That in the American tax system, getting a raise and going into the next tax bracket will not result in less income for you.
Edit: To clarify, I'm not talking about situations where a benefits cliff might exist.
Alaska and Hawaii are not part of the contiguous US.
A person I knew thought they were both in the southwestern US because that where they were always placed on the map.
They thought Socal was north of Alaska...
That people believe sending humans to Mars is going to happen soon. Sorry to burst your bubble, but humans will NOT be going to Mars within the next ten to fifteen years. We've only been saying we're going to Mars since the 1960s, and it's always been "How soon? Oh, five years, maybe ten, tops.". Yes, we've got the robots there, but getting people there (it's a six to nine month trip, minimum) is next to impossible with current technology. And once there it's a good two years before the return trip window opens. It is impossible, IMPOSSIBLE, to carry four or five years worth of life support necessities in any space craft currently conceivable for even as few as a half dozen people. But what is the constantly marketed fantasy? Hundreds of people, babies included, will SOON be colonizing Mars. Just. Pure. B.S.
That mass majority of items on Etsy are actually wholesale items from Aliexpress. You really have to spend time finding that legitimate hand crafted item.
Not really common if you have to go digging, now is it, Tiffany?
Load More Replies...In human beings, XX is a woman and XY is a man; only XX has the genetic capability to get pregnant. If a human being is pregnant, that human being is a woman. If a human being does not have the genetic capability to get pregnant, it is a man.
That people believe sending humans to Mars is going to happen soon. Sorry to burst your bubble, but humans will NOT be going to Mars within the next ten to fifteen years. We've only been saying we're going to Mars since the 1960s, and it's always been "How soon? Oh, five years, maybe ten, tops.". Yes, we've got the robots there, but getting people there (it's a six to nine month trip, minimum) is next to impossible with current technology. And once there it's a good two years before the return trip window opens. It is impossible, IMPOSSIBLE, to carry four or five years worth of life support necessities in any space craft currently conceivable for even as few as a half dozen people. But what is the constantly marketed fantasy? Hundreds of people, babies included, will SOON be colonizing Mars. Just. Pure. B.S.
That mass majority of items on Etsy are actually wholesale items from Aliexpress. You really have to spend time finding that legitimate hand crafted item.
Not really common if you have to go digging, now is it, Tiffany?
Load More Replies...In human beings, XX is a woman and XY is a man; only XX has the genetic capability to get pregnant. If a human being is pregnant, that human being is a woman. If a human being does not have the genetic capability to get pregnant, it is a man.
