If you've ever had a really deep, mind-blowing shower thought (ie, the brain named itself), then surely you know what's coming next.

Reddit user jcvks curiously asked:

Whats a "Let that sink in" fun fact?

Here are some of the impossible answers.

Reusable Honor

The United States hasnt minted any new Purple Heart medals since World War II. Weve been using the stockpile that was prepared in anticipation of a ground invasion of Japan. sperrymonster

Supernova Girl

There is, on average, a supernova explosion every fifty years in the Milky Way.

On average, there are thirty every second in the observable universe. dank_lemons


That's No Moon...

The Moon orbits us from the west to the east, but we see it move across the sky east to west because of the rate of the Earths rotation - our observation is like being in a faster car watching a slower car (heading in the same absolute direction) fall further and further behind us. kippersmoker

Behind The Times

The first electric car was invented at the end of the nineteenth century and it went 65 mph. redwiseman

Tigers Down South

There are more tigers privately owned in Texas than tigers in the wild. Dillardsspringsale

The Bare Necessities

Next to the US army, Disney world is the largest buyer and importer of explosives in the USA. ThisIsTheArbour


Only Mushrooms Can Prevent Forest Fires

There was a time in history when trees existed but the fungi which causes wood to rot had not yet evolved to digest wood.

Dead trees and plants would pile up and the 35% oxygen atmosphere caused massive fires. This is also the time where petrified wood came from. Trees would sit in mud for 1000's of years and not rot while minerals slowly replaced the wood structures. LinearPie

Twice Shy

Over the space of three days, an estimated 165 people survived both the Hiroshima and Nagasaki nuclear bomb attacks.

Tsutomu Yamaguchi is one of the more famous ones, who was only two miles from ground zero when the bomb was dropped on Hiroshima. It hit when he was walking to work on the last day of a work trip. After he heard the drone of a plane, he looked up at it and the sky lit up. He was then plucked from the ground, spun around and tossed into a nearby potato field.

Miraculously he survived, despite being covered in burns, soaked in radiation, and with two blown ear drums. He spent a night in an air shelter then took an overnight sleeper train home to Nagasaki to see his family. When he made it to a hospital in Nagasaki he was so burnt a childhood friend didnt recognise him. Neither did his family.

Despite his wounds he made it to work the next day. He started giving his boss a rundown on what happened, and his boss thought he was crazy. There was no way one bomb could destroy a city. Suddenly, a bright light lit up the room. He panicked and dropped to the floor of the office seconds before the shock wave smashed out the office windows. He had just been hit twice by a nuclear blast in the space of three days.

At the age of 93 he was given the title nijyuu hibakusha, or twice bombed person. He died the next year.

So next time you think youre having a sh*tty week at work... yeah. -Kiwi-Man-

Rock Lobster

Lobsters dont die of old age. Taking into consideration that humanity has only explored a small percentage of the ocean: there could very well be a BIG F***ING LOBSTER just chilling out there. [deleted]


Dontcha Wanta?

Fanta started as a Coca-Cola substitute in 1940s Nazi Germany. matthattar

The Final Frontier

If the earth was the size of a marble you would need seven miles of space to build a scale model of the solar system.  groorgwrx

Infinity And Beyond

Due to the way the speed of light works, combined with our current understanding of the expansion of the universe, there are areas of the universe that are both impossible for us to visit or even observe. The fabric of the universe expands faster over that distance than light can travel so it never reaches us.

When you combine that with the bit where scientists currently think there's roughly a trillion visible galaxies (four times more stars than exist in the milky way)... Sevcode


Don't Even Drop The Bass

Neutron stars have such strong gravity that if you dropped a marshmallow into one, it would be like dropping a 3-megatonne nuclear warhead on Earth. PM_ME_WHOLESOMEMES

I'm Dreaming

Bing Crosby advocated for salmon conservation in the North Atlantic against Denmark's overfishing in the early 1970s. The Danish government banned everything Bing Crosby in Denmark, but because he was so popular there, the Danish people protested the government, making them overturn the Bing Crosby law and even to enact salmon conservation legislation.

Bing Crosby single-handedly managed to create a piece of Danish law. AscendingSnowOwl

Black Hole Mole

As you get closer to black hole, time goes slower. This means that everthing farther away would experience time faster and faster as you get closer and closer to the black hole. A second for you could be a billion years for those outside of it. Thus, if you fell into a black hole and looked outside, you would see the universe die with you. gavinoba

Waka Waka

Maine is the closest US state to Africa. dwrussell96

Eastern Exposure

The entire continent of South America is east of Florida. Conspiracy__



Schizophrenia's hallucinations are shaped by culture. Americans with schizophrenia tend to have more paranoid and harsher voices/hallucinations. In India and Africa people with schizophrenia tend to have more playful and positive voices. Thatdamnalex

The Unsinkable Woman

The Titanic had two sister ships, the Britannic and the Olympic. There was a woman called Violet Jessop, a nurse and a cruise liner stewardess that worked on all three.

The Olympic crashed into a warship whilst leaving harbor but was able to make it back.

She was on the Titanic as it sank and is referenced in the Titanic film, a stewardess that was told to set an example to the non english speaking passengers as the ship sank. She looked after a baby on lifeboat 16 until being rescued by the Carpathia the next day.

It's not known what exactly caused the sinking of the Britannic but the lifeboats hit the water too early. As the ship sank, the rear listed up and a number of the lifeboats were sucked into the propellers. Violet had to jump out of the lifeboat she was in and sustained a serious head injury, but survived.

She was on board for all three incidents in the space of 5 years.

She went back to continue to work at sea for another thirty years before retiring in 1950. She died of Heart failure in 71. MissKrimson


Alpha Chess

Google's Deepmind self learning AI "AlphaZero" spent 4 hours learning chess, and proceeded to beat the top chess engine in the world.

The particularly interesting part is that it wins by playing in a very "human" way. Chess engines tend to run algorithms to assess a board after a move is chosen (looking at millions of moves every second) and decide who's better based on a set of parameters, making their play very direct. AlphaZero seemed to develop a far more human playstyle, somehow seeing something less quantifiable that led to an advantage in a position. Over the past 200 years, numerous chess masters studied a style of play similar to AlphaZero.

That means that in 4 hours, AlphaZero developed a better understanding of the game than we could over the 1000+ years it has been studied. Senior_CXC

Java Roach

Scientists who work with cockroaches often develop allergies towards cockroaches. At the same time, they also develop allergies to pre-ground coffee. PM_ME_LEGAL_PAPERS

Odd Timelines

It took humanity approximately 4 times longer to switch from copper swords to steel swords than it took to switch from steel swords to nuclear bombs. rahajaba

Holy Romans, Batman!

The Holy Roman Empire existed until 30 years after the United States was founded (1776-1806). pyrhho

Cluck Cluck

There are more chickens in America than people on the planet. Concept_D

Giant Milky Way

If the sun were scaled down to the size of a white blood cell, the Milky Way galaxy would be the size of the continental United States. The vastness of space is mind boggling. EZKL_V


Unlikely Elders

The University of Oxford (informally Oxford University or simply Oxford) is a collegiate research university located in Oxford, England. It has no known date of foundation, but there is evidence of teaching as far back as 1096, making it the oldest university in the English-speaking world and the world's second-oldest university in continuous operation.

It grew rapidly from 1167 when Henry II banned English students from attending the University of Paris. After disputes between students and Oxford townsfolk in 1209, some academics fled north-east to Cambridge where they established what became the University of Cambridge. The two "ancient universities" are frequently jointly referred to as "Oxbridge".

The Aztec Empire, or the Triple Alliance, began as an alliance of three Nahua "altepetl" city-states: Mexico-Tenochtitlan, Texcoco, and Tlacopan. These three city-states ruled the area in and around the Valley of Mexico from 1428 until the combined forces of the Spanish conquistadores and their native allies under Hernn Corts defeated them in 1521. 

Oxford is older than the Aztecs. Traspen

White Bread

Betty White was born January 17, 1922.

Sliced bread was first sold in 1928, advertised as "the greatest forward step in the baking industry since bread was wrapped". Traspen


Behind Blue-Eyes

Every person with blue eyes has one common ancestor. Original_name18

Unlikely Safety

Your computer is much more likely of contracting a virus by surfing legitimate church sites than by surfing porn sites.

Porn sites generally have experts combating viral stuff, while church sites are maintained by lower-tech volunteers, as a rule. TheRealTinfoil666

CW: Suicide

There is so much to learn in life.

And once you acquire certain things mentally, you regret it.

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Yeah, not possible.

Knowledge is power and sometimes it's a nightmare.

Don't we have enough to keep us up at night?

Damn curiosity.

Well let's do some learning.

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But sometimes, refusing to believe the truth could have serious consequences, up to and including climate change, the effectiveness of masks, and the disproportionate amount of gun violence in the US.

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