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The dictionary defines a paradox in several ways:

  • a seemingly absurd or self-contradictory statement or proposition that when investigated or explained may prove to be well founded or true.
  • a statement or proposition that, despite sound (or apparently sound) reasoning from acceptable premises, leads to a conclusion that seems senseless, logically unacceptable, or self-contradictory.
  • a situation, person, or thing that combines contradictory features or qualities.
For the purposes of this article, we'll be focusing on the first two. It's all thanks to Redditor 301is301, who asked the online community, "What's your favorite paradox?"





"If time travel was possible..."

Time travel. If time travel was possible, then presumably someone from the future would have already gone back in time to change the past. Therefore, when someone says they, for example, would have stopped Hitler, they actually wouldn't because someone already would have made that correction in time. Instead, that must have been, unfortunately, the best possible outcome out of all possible outcomes. Either that or time travel just isn't possible which seems significantly more likely.

izackthegreat

"You take a ship..."

Theseus' ship.

You take a ship and replace every single part in it with a new one. Is it still the same ship? If not, at what point does it stop being the ship you knew? Also, if you take all the parts you replaced and build another ship with them, is it the original ship?

Zeta42

"Camus regards..."

Camus regards The Absurd as a paradox. Humans are constantly driven to seek meaning in a world that doesn't appear to have any.

VanFailin

"You receive a strange machine..."

The Bootstrap Paradox

You receive a strange machine and a note that says "This is a time machine, recreate the time machine and send the machine back in time to the day you received it (today)." Bewildered, you set to work to recreate the time machine. When you are done and have tested it, you send the original machine and the note back in time to the day you received it.

You didn't create the machine you received from yourself, where did it come from?

Artemy_fluffball

"But any number..."

The Galileo paradox

The sequence of square numbers: 1, 4, 9, 16, 25, 36, 49, 64, etc clearly shows that there are a lot fewer square numbers than there are non-square numbers, as the distance between them gets increasingly longer.

But any number can be multiplied by itself and the result of this multiplication is a square number. So it must also be true that there are at least as many square numbers than there are non-square numbers.

scenesequel

"This one is basically..."

Mine is probably Zeno's Dichotomy paradox although having a favourite paradox is a weird thing.

This one is basically that to reach a certain distance you have to reach half way first. So if the door is 10m away you first have to reach 5m then after that 2.5m then 1.25 and so on and so on which means you will never reach the door.

The other one is The Ship of Theseus, also known as Theseus's paradox. Sometimes also known as the Axe paradox

The axe version is that if you are given an Axe and replace the wooden handle is it the same axe? What if you then replace the blade? How many times can you repeat this process before the Axe is no longer the same Axe?

The cool thing about this is that your entire body is made up of a different set of cells every 7 years or so (as cells die). So can you really say you're the same person you were 7 years ago?

iRRVi

"I was in denial for a good bit..."

How 0.9 repeating is equal to 1 There's lots of different ways to prove it but the simplest for me is this example:

X = 0.9999... Multiply it by 10, so 10X = 9.9999... Subtract 1X from 10X or 9.999... - 0.9999... which equals 9 So then 9X = 9, simplify to X = 1

I was in denial for a good bit when I first heard of this.

Lilwashcloth

"If we assume..."

The Fermi Paradox

It's basically about the existence of aliens and can be summed up as:

"1- The Milky Way contains hundreds of billions of stars, and billions of them are similar to the sun.

2- It is highly likely that some of these stars will have planets that are similar to Earth.

3- If we assume – via the Copernican principle – that Earth is not particularly special, then intelligent life should also exist on some fraction of these Earth-like planets.

4- Some of these intelligent life-forms might develop advanced technology, and even interstellar travel.

5- Interstellar travel would take a long time, but as there are many sun-like stars that are billions of years older, there has been plenty of time for such travel to have occurred.

6- Given all this, why haven't we met or seen any trace of aliens? Where is everybody?"

NiceHouseGoodTea

"But..."

There is a smallest number that is not nameable in less than 18 syllables. But "The smallest number not nameable in less than 18 syllables" has seventeen syllables and names the same number.

gregbard

"There are two paradoxes..."

There are two paradoxes in this one: If the infinite realities theory is true and there are infinite realities, half of them would be a universe where time travel is possible and half where time travel is not possible. But the time traveller is always being sent into a past whose reality is based on time travel is not possible. So as soon as the person time travels, he becomes visitor to a reality where time travel is possible only.

Otherwise, we would never be able to have time travel in this reality. So really, zero realities exist where time travel is possible. And so that makes the infinite realities theory not true. Either way, neither can be true at the same time. So each form of reality in this paradox depends on the other to not exist in order to exist. But they do... and so that makes us Schrodinger's cat at all times.

dragonscale76

"Somewhere in the far future..."

Somewhere in the far future we will discover everything that can be discovered. After that most probably the only thing we wouldnt be able to know would be death, therefore humanity is slowly killing itself in its curiosity.

ElFtador

"Let's say..."

Grandfather paradox. Lets say you have a time machine and you travel back in time and kill your grandfather. Well, since he's dead one of your parents won't be born, and then you won't be born either. But, if you're not born, than you can't travel back in time to kill your grandfather, so he's alive, but if he's alive, then you are born and you can travel back in time to kill him, but if he's dead –– you get the idea.

No-regrets136

"No matter what happens..."

Time travel itself is a paradox. No matter what happens, if anyone so much as hears the time traveler, something different will happen. Let alone if the time traveler accomplished what he traveled to do, then he won't have motive in the first place.

Vortex5000

"You meet your past self..."

Your meet your past self and your future self, what is your conversation. Except your future self would also talk to his future self and you. Your past self would talk to his pst self and you. Their past and future selves would have a convo. It would be infinite.

OriginalDoomSlayer

"In other words..."

A sentient, benevolent AI may be driven to torture a perfect simulation of you.

First thing's first: Functionally a perfect simulation of you and you are identical.

Now, the AI wants to come into existence. As soon as it exists, it can help people. However, it can't time travel so it can't go back in time. What it can do is dangle a metaphorical knife over your head. If you know you'll get tortured if you don't do something, you'll be more inclined to do it yes? But if you have no idea you'll be tortured, you won't.

So, by knowing about this potential benevolent AI and the risk of being tortured (Or having a functionally identical copy tortured) you'll be more inclined to help the AI come into existence to avoid punishment, thus making the AI come into existence sooner, thus allowing it to help humanity sooner. There's no sense torturing people unaware of the possibility because torture or not, they won't be more likely to help make the AI.

I might not have done a great job of explaining it, it's a weird concept but once you have it you realise how it works. It's known as Roko's Basilisk.

In other words: A benevolent AI can be driven to do something very not-benevolent for the purpose of more benevolence. And now you know about this possibility, you're going to risk being tortured unless you help it come into existence.

Sacred-Belt

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Image by Anemone123 from Pixabay

Life is hard. It's a miracle to make it through with some semblance of sanity. We are all plagued by grief and trauma. More and more people of all backgrounds are opening up about personal trauma and its origins. Finally! For far too long we've been too silent on this topic. And with so many people unable to afford mental health care, the outcomes can be damaging.

All of our childhoods have ups and downs and memories that can play out like nightmares. We carry that, or it follows us and the first step in recovery is talking about it. So who feels strong enough to speak?

Redditor u/nthn_thms wanted to see who was willing to share about things they'd probably rather forget, by asking:

What's the most traumatizing thing you experienced as a child?
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Being single can be fun. In fact, in this time of COVID, being single can save lives. But the heart is a fickle creature.

And being alone can really suck in times of turmoil. None of us are perfect and it feels like that's all anyone is looking for... perfect.

Now that doesn't mean that all of us are making it difficult to partner up. Sure, some people are too picky and mean-spirited, but some of the rest of us are crazy and too much to handle. So one has to be sure.

The truth is, being single is confusing, no matter how much we try to match. So let's try to understand...

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Tiard Schulz/Unsplash

Whether you're an at home parent, a college student just leaving the nest, or a Food Network junkie, there are a few basic tips that everyone should know.

Chef's gave us some of their top tips for amateurs and beginner at home cooks that will really make a difference. They are trained professionals with years of experience in the kitchen, so they definitely know what we're all missing.

If you're looking to improve some of your cooking skills and techniques, but you're still learning how to boil water correctly, this list is for you.

Redditor BigBadWolf44 wanted in on the secrets and asked:

"Chefs of Reddit, what's one rule of cooking amateurs need to know?"

Let's learn from the masters!


What a common mistake!

"A lot of the time when people add salt to a dish because they think it tastes flat, what it really needs is an acid like lemon juice or vinegar."

- Vexvertigo

"Instructions unclear I drugged my dinner party guests and now they're high on acid."

- itsyoboi_human

"Yes! Or tomatoes. They're pretty acidic too and go with so many things. Our dinners are so much better once the garden tomatoes are ripe. Or if a dish is too acidic, oil/butter or a little sugar can help add balance to it."

- darkhorse85

"Like tomato and eggs. Every Chinese mom makes those slightly differently and I haven't had a tomato egg dish I didn't like yet."

- random314

"There's a book called 'Salt Fat Acid Heat' that comes highly recommended to amateur cooks."

- Osolemia

"Reading even just the first chapter about salt made a lot of food I cooked immediately better, because I finally understood salt wasn't just that thing that sat on the dinner table that you applied after the meal was cooked."

- VaultBoy42

"Salt is important for sweets. A batch of cookies without that little hint of salt doesn't taste quite right."

- Osolemia

Unfortunately, this tip might not be accessible to everyone. Many people who contracted COVID can no longer use their sense of smell the way they used to.

"Have a friend that lost his smell from COVID, and now he only recognizes if food is salty, sweet, sour or bitter."

- AlphaLaufert99

"Just wait until he gets his sense of smell back and a ton of foods smell like ammonia or literal garbage now. Yeah, that's fun... It's been 7 months for f*cks sake just let me enjoy peanut butter again!!!!!!!!!"

- MirzaAbdullahKhan

You can't take back what you've already put in.

"You can always add, but you cannot take away."

- El_Duende666

"I find people's problems usually are they're too scared to add rather than they add too much."

- FreeReflection25

"I see you also grew up white in the mid-west."

- Snatch_Pastry

Safety first!

"Not really a cooking tip, but a law of the kitchen: A falling knife has no handle."

- wooddog

"I'm always so proud of my reflexes for not kicking in when I fumble a knife."

"If I drop anything else, my stupid hands are all over themselves trying to catch it (and often failing). But with a knife the hardwired automatic reaction is jump back immediately. Fingers out of the way, feet out of the way, everything out of the way. Good lookin out, cerebellum!"

- sonyka

"Speaking of KICKING in. On first full time cooking job I had a knife spin and fall off the counter. My (stupid) reflex was to put my foot under it like a damn hacky sack to keep it from hitting the ground. Went through the shoe, somehow between my toes, into the sole somehow without cutting me. Lessons learned: (1) let it fall; (2) never set a knife down close to the edge or with the handle sticking out; (3) hacky sack is not nearly as cool as it could be."

- AdjNounNumbers

"Similarly, NEVER put out a grease or oil fire with water. Smother with a lid or dump baking soda in there (do not use flour, as it can combust in the air making things worse)."

- Metallic_Substance

How else will you know it tastes good?

"Taste the food."

- OAKRAIDER64

"Also don't be afraid to poke and prod at it. I feel like people think the process is sacred and you can't shape/flip/feel/touch things while you cook them. The more you are hands on, the more control you have."

"No, this does not include situations where you are trying to sear something. Ever try flipping a chicken thigh early? That's how you rip a chunk out of it and leave it glued to the pan until it's burnt."

- Kryzm

Here's one just for laughs.

"When you grab a pair of tongs, click them a few times to make sure they are tongs."

- Kolshdaddy

"People really overlook this one. You've gotta tong the tongs a minimum of 3 times to make sure they tong, or else it can ruin the whole dish."

- BigTimeBobbyB

If you're looking to get into cooking or to improve you technique, pay attention to these few tips.

Salt generously, add an acid to brighten things up, and don't forget to taste your food!

If all else fails, you can always order take out.

Want to "know" more? Never miss another big, odd, funny, or heartbreaking moment again. Sign up for the Knowable newsletter here.

Victoria_Borodinova/Pixaba

As part of the learning process, children often do embarrassing things before they learn a little more about the world and all the different implications therein. While the inappropriate moment is usually minor and ends in laugher some instances are truly mortifying.

One such instance involved a little sister who was around 6 at the time. It was the 90s and at the height of the youth-focused PSAs (think the frying egg representing your brain). One type was a safety PSA about stranger danger. The speaker would remind the children that if a stranger tried to take you anywhere to yell “Stop, you're not my mommy/daddy" to raise the alarm.

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