We grow up in different circumstances, and it's impossible for everyone to develop the same worldview. Still, for society to function, we expect certain stuff to be universally understood — fundamental facts that people can agree on and rely on. But that isn't always the case.
Reddit user JustBeingElara recently asked the platform what common knowledge they realized wasn't so common.
Thousands replied, sharing etiquette rules, marketing tricks, basic biology, and much more, teaching each other all sorts of useful things. So we decided to collect the most interesting ones for those who love to learn!
#41
That the UK has not left the European continent, just the European Union. The amount of people who genuinely think we’re not part of Europe anymore shocks me.
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36points
#43
I was an anatomy teacher and I had a student that didn’t know the meat we eat is muscle from animals until I was using a steak to demonstrate connective and muscle tissues.
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36points
#44
That’s it’s not up for debate whether we landed on the moon. Now you might debate whether the first landing was faked. But we went 5 more times (manned landings). There is a lot of equipment left there that can be seen from earth. Even a mirror you can hit with a laser.
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34points
#45
The only things you should flush down the toilet is TP and human waste. It doesn’t matter if the wipes or the cat litter says it’s flushable. It’s not!
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34points
#46
How to spell 'definitely'. There are a finite number of ways to spell de-FINITE-ly.
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32points
#47
Grapes, onions, garlic, chocolate, corn cobs, xylitol are all harmful for dogs to consume. I hate seeing people giving their dog a protein of whatever they cooked for dinner knowing that there’s onion in it. Yeah, a lot of dogs won’t get seriously sick, but I will hurt their stomach. And some do get very sick. Don’t give your pets human food.
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31points
#48
Getting an IV does not mean a needle is left inside you while that IV is in place.
While I don't expect everyone to know this, I continue to be surprised that people who actively have IVs in place do not know this.
hotdiggity75:
I didn’t know this and now I feel stupid.
LegCompetitive6636:
The needle has a plastic tube, a catheter, on it which is left inside the vein when the needle itself is removed
Edit: just to clarify more, the needle pierces the vein then the catheter is advanced further into the vein and the needle is removed, that long needle isn’t going all the way in your vein.
While I don't expect everyone to know this, I continue to be surprised that people who actively have IVs in place do not know this.
hotdiggity75:
I didn’t know this and now I feel stupid.
LegCompetitive6636:
The needle has a plastic tube, a catheter, on it which is left inside the vein when the needle itself is removed
Edit: just to clarify more, the needle pierces the vein then the catheter is advanced further into the vein and the needle is removed, that long needle isn’t going all the way in your vein.
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26points