### Veritasium

- 30
- 1 169 086 762
- 73
- Beigetreten 21 Jul 2010

An element of truth - videos about science, education, and anything else I find interesting.

### Video

### How a slinky falls in slow motion #shorts

Vor 15 Tage

### The Biggest Myth In Education

Vor 22 Tage

### Risking My Life To Settle A Physics Debate

Vor 2 Monate

### Math Has a Fatal Flaw

Vor 2 Monate

### How An Infinite Hotel Ran Out Of Room

Vor 2 Monate

### This Unstoppable Robot Could Save Your Life

Vor 3 Monate

### The Secret of Synchronization

Vor 4 Monate

### This is why we can't have nice things

Vor 4 Monate

### The Discovery That Transformed Pi

Vor 4 Monate

### Why Robots That Bend Are Better

Vor 5 Monate

### I Asked Bill Gates What's The Next Crisis?

Vor 5 Monate

### Q&A + Giveaway for 10 Years on YouTube

Vor 6 Monate

### The Illusion Only Some People Can See

Vor 7 Monate

### These are the asteroids to worry about

Vor 8 Monate

### Why No One Has Measured The Speed Of Light

Vor 9 Monate

### Do You Expand With The Universe?

Vor 9 Monate

### How One Supernova Measured The Universe

Vor 9 Monate

### Why Gravity is NOT a Force

Vor 9 Monate

### The Infinite Pattern That Never Repeats

Vor 10 Monate

### How Kodak Exposed The Atomic Bomb

Vor 10 Monate

### Is Success Luck or Hard Work?

Vor 11 Monate

### Is Dust Mostly Dead Skin?

Vor 11 Monate

## KOMMENTARE

## MaoItsMe

2:55 "So you can continue shrinking a file down until what you're left with is totally random" I am very confused by this sentence, you don't shrink it until it's random, you shrink it until it there are no patterns left

Vor 19 Stunden## Joshua Tabac

i just tried this without watching the whole video and tried to do negative and found a loop and i thought i was a genius and i was commenting "how to reach derek muller" but then i watched it again and saw that there is really a loop in negative i was shocked cause i tried -25 and hit a loop first try lmao

Vor 19 Stunden## Guss Gipfelder

Not interested in Bitcoin Thank You very much..

Vor 19 Stunden## Joonas Ata Saks

3x+1= 3x+1

Vor 19 Stunden## Rabbit 1423

i somone also thinking after watching this video about mosquitoes that you are get biten, but if you look at you there is nothing to wory about?

Vor 19 Stunden## Stronk Vodka

Teacher: cmon guys, this is algebra 1, the final is not that hard. The Final: 3x + 1

Vor 19 Stunden## Michael Tuohy

Dumb question but why 3X+1? Is that somehow unique? Are there other equations (e.g. 5x+1) that produce similar results where every number eventually falls to the same infinite loop? Although did some research (i.e 20 mins on a calculator) and already found two infinite loops for 5x+1 (using numbers 5 and 8) but maybe the solution overall would be to look at the behaviour of NX+1 in general? ***Strokes beard***

Vor 19 Stunden## Mathys Mvondo

Is it 3?

Vor 19 Stunden## Enoch's Adventures

NOT WATCHING. I SWEAR TO GOD THIS GUY JUST MAKES THESE VIDEO TO PISS ME OFF.

Vor 19 Stunden## Jon's Design

This is why we need quantum computers

Vor 19 Stunden## Dean Collins

10?

Vor 19 Stunden## momishka7

at 8:23 the 2nd row all blue numbers coming from all the odd numbers are ALL 6 numbers apart from each other, what does that mean?!!!!???? I suck at math, but they didnt mention it???? crap! lol

Vor 19 Stunden## LEO

answer is -1

Vor 19 Stunden## Gacha Blue girl

De answer for de thumbnail is 10 3x is 9 and +1 is 10

Vor 19 Stunden## Huo Shing

Oh well I guess there is too much resolution of maths at the larger scale and the laminar can't do it's rounding cheat to even exist. Watch as a solitary tear runs down my pale cheek in sympathy for the Laminarians!

Vor 19 Stunden## Bambino Vlogs

i’m growing up.

Vor 19 Stunden## konroth rec.

for me it's just numbers

Vor 19 Stunden## quietrioter

Send this to Gregori Perlman. He can figure it out. If we are not disturbing him because he is collecting mushrooms

Vor 19 Stunden## Z

and why would you want to multiply by 3 or divide by 2, this is not a math problem. thats not the definition of a math problem.

Vor 19 Stunden## XAlex PlaysX

Its 19

Vor 19 Stunden## Joshua Rennig

that would mean there is a stand alone loop in the number line that says "there is no proof that this is on the number line"

Vor 19 Stunden## Astrid The sämst

why am i watching this at 14 years old??

Vor 19 Stunden## Shaun Saayman

I think it is irresponsible to assume that there is a possibility that light/signals can be "instantaneous". Think about it, instantaneous means here now, gone now as well. Light is a source of energy. And energy cannot be destroyed.

Vor 19 Stunden## Isaac A

It’s 4x

Vor 19 Stunden## Sean Gillanders

We ought to take a page out of Ace Combat's book and built gigantic railgun networks to combat the threat.

Vor 19 Stunden## Wolfs

Isent it 3x+1 = 10 ?

Vor 19 Stunden## Mike D

30 minutes, a healthy mix of pain and pleasure.

Vor 19 Stunden## MisterBhodisattva

Ze mind is blown again!

Vor 19 Stunden## Theodor Hansen

Regarding the diagonalization proof isn't there an infinite amount of real numbers? So the number you created with the diagonal has to occur anyways. Also it's still a number meaning that it still occurs between 0 and 1 so why could it not be identified as a natural number?

Vor 19 Stunden## AQWorlds PvP

12:34 pretty funny

Vor 19 Stunden## Marisol Garcia

It is still very interesting even if you do not understand it. (I understand it) 😃

Vor 19 Stunden## Ernest Camps

God did it, you are fired.

Vor 19 Stunden## MrSupasonics

Why does no one talk about the jobs? I mean, this technology is the end of all drivers, especially bus, truck, and other mass land transportations... Sure, some driving jobs will survive, but more than ~80% of driver jobs will be eliminated.

Vor 19 Stunden## Veri Shervendra

You have such a high reach into person to person intereogation using interphase ,the best stock according to facts .have a famous .

Vor 19 Stunden## Dome _97

I dont konw if it was mentioned earlier in this comment section. But could it be possible to use quantum entanglement to sync the clocks ? Or is then there a problem to know if the sync is instant ?

Vor 19 Stunden## Kuga _

And whats the use of all that? 3x+1

Vor 19 Stunden## Chogiwoah

math class : 2×2 the test : 3n+1

Vor 19 Stunden## Aadishree Diwakar

Why is 27 such a chaotic number. Not to forget the infamous Club 27

Vor 19 Stunden## BooperDooper DooperBooper

What about that one In 2019? If you talk about it vuz I'm not even a third of the way into this video

Vor 19 Stunden## MXT_LX

Me: It’s 6

Vor 19 Stunden## currican

Even x Even = Even and Odd x Odd = Odd. By adding the 1 (if odd), you're forcing the equation to result in an even number making it so 66.66∞% of all numbers will end up even and 33.33∞% odd. This will always result in the 4-2-1 loop if the number is in that 99.99x∞ percentile. Find that 0.11∞% number to prove it wrong. I don't understand what the conjecture is trying to solve. (honestly)

Vor 19 Stunden## The Two

Ay Bill, just give $5 billion, and feed all the hungry in the world,that’s all it takes.. how about it Bill ?

Vor 19 Stunden## Aiden Kimmerling

At 5:02 he suggests to do this, but that wouldn’t work as there’s an INFINITE amount of people which means an infinite amount of combinations/names which means the No Room name would eventually be taken. This video is SOOO flawed in SOOOO many ways lol Edit: and when I say he suggests to do “this” I mean he suggests to do what the video is saying/showing

Vor 19 Stunden## Veri Shervendra

A hospital bed hell no !! Hotels ! Less comfortable and more urging recovery. Dont quote me

Vor 19 Stunden## Hello Taco

4 it to easy

Vor 19 Stunden## Cardinal Sin

the speed of light has nothing to do with speed and everything to do with time.

Vor 19 Stunden## Jerome Garcia

The future futuristic flower dimensionally cycle because stop coherently transport near a alluring gender. handy, lavish trail

Vor 19 Stunden## Viktor Dozsa

I remember watching a Veritasium video a couple weeks ago where I learned that there are mathematical problems which are known to be true but they can't be proven to be true. Also there is the indirect proving method: let's say this problem is false. If it is so hard to prove it true, try to prove that it is false. If you can't prove that it is false, you've proven it to be true. Good luck. :)

Vor 19 Stunden## monkey boy

I'd like to see the test done with more controls. Diet, blood type, and amount of sweat and other scents, such as cologne on the person. Also, what about clothing ? I have read flies are attracted to blue for instance.

Vor 19 Stunden## Corgi Messy Eater

Same walking speed might caused the bridge to wiggle. Crowded space caused ppl to follow the same walking speed infront of them. Hence, everyone will walk the same pace eventually.

Vor 19 Stunden## Vivian l.

4

Vor 19 Stunden## Richard Kan

Jeez it's bloody dangerous to create liquid gas like that. You could have an accidental spill and lose your feet to severe frostbite

Vor 19 Stunden## 1991dmj

wait this channel became a maths channel

Vor 19 Stunden## SomeoneCommenting

9:14 Isn't this the proof? This is the _counterexample_ that the bald guy is talking about. Instead of trying to run the function and look at its behavior as it goes, you are doing it rising *backwards* from the root that you want to prove that every number will end up reaching. It is *OBVIOUS* that every single number in existence can be tied to the directed graph, because you can go in reverse up from every single node that appears in it, and all numbers *MUST* appear in it because there is no way in this world that an even number cannot be divided by two and that an odd number cannot be multiplied by three and added one (we are of course excluding the root's initial straight line). And the next number up *MUST* either end up being even or odd, and the thing will repeat. These mathematicians need to learn that not all solutions have to be done with equations and variables, human logic is also capable of bringing proof to stuff. For me, this graph is the proof. No one can prove that the graph will not include a certain integer, because IT IS IMPOSSIBLE to skip any integer in it. There's no way that you can come up with any equation proving that some integer will not appear in the directed graph.

Vor 19 Stunden## Adrian Godinez

The problem is the problem

Vor 19 Stunden## Skuldwyrm

The Math problem is flawed in my opinion. For positive numbers you do "(7x3)+1" which equals 22, but for -7 you need to do "(-7x3)-1". If you are to use negative numbers you have to mirror (invert?) the sign of the math. You would then get mirror "fantastic fibrous trees". Also note that of all the numbers, only base 2/twos complement binary always divides down towards 1 (i.e 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1). Just be aware the slight integer storage issue where you have a integer range of -128 to +127. But since the rule prevents you reaching 0, I guess you can say the range is -128 to +128 but "skipping" the 0 in the middle. Or maybe look at it as shifting it by +0.5 so the range is really -127.5 to +127.5, I mean, who is to say a integer of 1 actually is a 1, it could be a 0.5 or 1.5 rounded to 1. Unless we live in a simulation few if any things in nature are exact integers. Example: If you have an apple and a friend gives you an apple, how many apples do you have? Most would say 2 (even me) but are both apples of equal size/mass? If not then what would qualify as being "1 apple", apple A or apple B? Or maybe neither, is there a template apple out there somewhere? The concept of 1 and 2 etc. is a very human construct (or more hopefully a universally sentient construct). I wonder what a 3D plotted cube would look like if the positive odd and positive even and negative mirror odd and negative mirror even was used as x,y,z coordinates. I'm not sure how one would anchor two of them into a single coordinate though. Maybe the fourth value could be used to set the brightness of the dots somehow. Not sure how to visually represent 4D in a 3D way for representation on a 2D display. OR maybe link time with the 4th value? Have attempts been made to take number sequences and translate those into a spiral (similar to how you can with pi)? I'm curious. (this comment will self-destruct possibly in the near future)

Vor 20 Stunden## S T

I wonder if the histogram looks like benford's law because the rule coins something that is "nature" like, or if it's simply because we multiply by 3 which may statistically lead to more 1's than 9's.

Vor 20 Stunden## Theodor Hansen

I read that meth has a fatal problem

Vor 20 Stunden## Peter Cross

The universe is a riddle. These unsolvable questions are the reason I believe in God. Somethings are just unsolvable by our tiny worm monkey brains

Vor 20 Stunden## Jellybean

If you could prove every even number would diverge… isn’t that your answer? Cause all odd numbers become even after one step and if all even numbers diverge then that’s your answer.

Vor 20 Stunden## Jellybean

Sorry. I’m not great at this whole logic thing. Lemme know if something is off about this.

Vor 20 Stunden## X89V

It’s 4

Vor 20 Stunden## Frisk Dreemurr Boy

"Ferb, I know what we're gonna do today"

Vor 20 Stunden## Doctor Jawline

I really don't understand where the problem should be? That it always ends up in a 4-2-1-4-2-1.... loop? Why should this be a "problem"? The initial situation are 2 artificial rules. Applied to any number it will eventually end up in this loop. Again: Why should this be a "problem"? If you know this, then you got the solution: Those 2 rules applied to any starting number will eventually end up in a 4-2-1-4-2-1-.... loop. Can someone explain what iam missing since it wasn't displayed/explained in the video? Thanks in advance! EDIT: I can come up with some other random rules and say: There is no pattern OR there is this pattern. Because the numbers increase or decrease or end up on another loop (i bet there surely is another loop if you get the "correct" artifical and initial rules).

Vor 20 Stunden## Estrella Vega

OK, finished the video, and I'm really disappointed: I could have told you the same thing. I was expecting more unusual findings, but you're just saying that you need to look at maps to learn geography and listen to music to learn music....uh, obviously?

Vor 20 Stunden## Shreenath A

I came to know about the Collatz theorem around 10 years ago ... this is an awesome video ... thanks a lot for this

Vor 20 Stunden## FV215B 183 - WoT Blitz

Let's be honest. This video was recommended to you

Vor 20 Stunden## Geno Asprejugh

Yeaah.. with no face like open loop. Kahkahkah. :D

Vor 20 Stunden## The Platonic Simp Pimp 2020

5:40am, this is what I resort too

Vor 20 Stunden## Erik

Someone just came up with arbitrary rules for some math puzzle and we're acting as if we stumbled upon some ancient wisdom.

Vor 20 Stunden## Noss the Boss

So how would I use this? Like I get it, its simple mathematics but what's the point of this equation, if you can't use it. It can't imagine that it would get to a point where were trying to get to the number infinity. Because if that's the case then... 10 divided by 0 = 10. For my account, if Division is the opposite of Multiplication | 10*0=0. --- It baffles me that this 3x+1 is going to be used to solve a mathematic problem if their is no solution. Could it be that 3x+1 ending in 1-4 loop be the answer.

Vor 20 Stunden## Paula Gonzalez

MOSQUITOS 1 CORONAVIRUS 0

Vor 20 Stunden## Rude_Boi

Just wait until the asteroid _"Wormwood"_ hits Earth.

Vor 20 Stunden## Gregorio

Welcome to Hotel Hell. Check in time is now, check out time is never. I am the manager and my salary is $80,000 a year

Vor 20 Stunden## The champs of Gaming

Well I the point of evolution I’m pretty sure all evolutions are by accident

Vor 20 Stunden