We Fell For The Oldest Lie On The Internet

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“Your blood vessels stretch a staggering 100,000 kilometers, enough to wrap around Earth twice!" Sounds amazing, right? We spent over a year trying to confirm this claim,
and let's just say – things aren't as they seem. Join us on our year-long journey that uncovered outdated science, speculation, and a lot of dead ends.

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The Soundtrack of this video:

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0:00 Start
10:36 80,000h Sponsorship
11:55 Become a part of kurzgesagt

[Vinxian]

One thing that is still true is that if you take someone's blood vessels and lay them out in a straight line, they'll die

[DataIsBeautifulOfficial]

Next up: debunking how many spiders you eat in your sleep.

[yannck]

Gotta love how the wikipedia article for blood vessel has already been edited with the more correct estimates.
They even linked this video in the view history

[Walter_]

O god this is foreshadowing to how hard it will be to track down sources in an internet full of AI-generated information.

[universona]

Last night I told my mother that our blood vessels could wrap around the earth 3 times. Guess what pops up on my feed right now. Wonderful

[montyeverest]

Good to see nothing's changed. When I was at University (35 years ago) I heard a great quote... "It takes 3 years to introduce a new "fact" in to a textbook... and 3 decades to remove it once it's been disproved"

[Lucas-kydc]

In a nutshell, this is a video about accountability and commitment to truth.

I love it.

[rigfiercemen]

The fact you called yourself out makes me trust your information a lot more than I already did

[Cryo_Cross]

Applying the animations to real life is actually really cool-it feels even more fitting since you guys also put in direct sources instead of illustrating it alone

[aFISHlememes]

One thing that’s true is that if you take out all of your veins and lay them on a basketball court, the game would be canceled.

[horabfibslager]

"it couldn't be that hard to find the source, right?"

CGPGrey sends his regards

[soul.joao_pedro]

My favorite false fact I was taught at school is that the different areas of the human tongue detect different flavors.

[zennakashima]

I’m a long-time fan of Kurzgesagt, usually just watching quietly. But today, I had to speak up, this video was absolutely incredible! The style felt so fresh and engaging. Loved every second of it!

[UltimatePostman]

"We only use 10% of out mind" is one of my favorite false facts.

[larsegholmfischmann]

Now, THIS is scientifically beautiful! It really leaves one wondering how much else we repeat in academia that is incorrect or inaccurate, and how better knowledge and data could change things.

[BigLittleJan]

This is gold! Now everyone can reference the source. It may not seem like much, but as a guy that worked as archeologyst, I know A LOT of people is gonna thank this at some point.

[_ata_]

This is why we need the Internet Archive. Please support it!

[IronMan]

This reminds me of CGPgrey going down weird historical rabbit holes only to discover a complete lack of primary sources

[Bobalotlk]

1:59
Number: **acting all suspicious**
Kurzgesagt: "And I took that personally"

[adrianbrionez]

¡Gracias! La animación sobre fotos reales siempre me ha gustado mucho, y la dedicación y calidad en cada video es increible!