Folks, yes there is air resistance! All bodies in the unity game engine have a setting for "Drag" to simulate fluid resistance. Gravity is set to -9.81. There is inertia and friction as well. The ragdoll's limbs have limited DOF (degrees of freedom) to simulate the human body. The only thing missing is energy cost and fatigue, which even-though sounds really cool, is extremely hard to implement in practice in reinforcement learning. This is primarily why the AI looked explosive towards the end despite having normal joint strength. During my experimentation with energy cost functions, the resulting locomotion is either: [1] almost non existent where the AI resorts to saving energy infinitely or [2] drunk/slow limb movement to save energy. I hope this clarifies any doubts you may have. Cheers!

@S.I.M.P

13 күн бұрын

Did i just read FREEDOM?

@joyul8216

13 күн бұрын

Now test this in real life.

@LuisSilva007

13 күн бұрын

You also made it more explosive than any human

@acenovaYT

13 күн бұрын

i mean he might have ran it faster but if he expends 3x more energy it kinda dosent count, if i had wheels for legs and a v8 for mucles i would "run" faster too. If the energy (useable and how much it can output via any movement) was considered and working the ai wouldnt be flailing its arms and doing wierd steps that are most likely wastefull (or its really the optimal way and we should all run like that though i think most would not be able to and would rip something via that way of running even if it is more efficient).

@sferaefdeer3465

12 күн бұрын

Why is he running on two legs, maybe on all fours will be faster? A doll should love to experiment and test her abilities. People have tried various techniques to find the perfect one. Why is there only one doll? Several hundred dolls will increase the learning rate by the same number of times.

Bro I didn’t expect the -0.0005 penalty to actually make the AI run like a serial killer is behind them

@brunomcleod

24 күн бұрын

It also consequentially made it scarier than how any serial killer could run Like I would not want to turn around and see that coming towards me

@ViceZone

24 күн бұрын

So essentially, this AI is running for its life

@daryladhityahenry

20 күн бұрын

Yeah right. I don't understand the logic behind this. How it is actually work? In theory, it just like reducing the reward right? How the AI know they must finished faster so they don't get pinalized since it's not even succeed in finish the race in the first place? Thanks.

@me-cm8or

19 күн бұрын

@@daryladhityahenrybecause they have real Neural network... they have feelings... Fears... they’re trying to live longer and exist more and “survive”.

@manateeproductions5031

17 күн бұрын

@@me-cm8or nope not true, theres no emotions at all. the AI just goes faster because it learnt from previous runs that it gets a lower reward if it doesnt hurry up.

Finally, AI can show us the optimal way to run.

@LetFenrirSoloHer

25 күн бұрын

Optimal also takes into account the ammount of injuries you get. The Ai is fast because 1. it has no strength/endurance cap, nor does it experience pain.

@captaincode4380

24 күн бұрын

😂👍👍👍👍

@faaz12356

23 күн бұрын

How funny if we all run Like this

@qpnnio

22 күн бұрын

Almost cried when I saw this.

@lpc9929

22 күн бұрын

gggghjj tthff Exit keyboard

8:49 this is proof all of us learned running wrong. To do it the right way, we need to stagger and flail our arms.

@everesthines2228

25 күн бұрын

Don't forget the part where you collapse at the end of the run cycle.

@MRJakeyBro

25 күн бұрын

facts

@JeLeff.

24 күн бұрын

don't forget to shake your head and body

@tetra6354

23 күн бұрын

you also need to shake yourhead and body as if you're crazy

@JeLeff.

23 күн бұрын

@@tetra6354 that's what I said

Usain Bolt needs to adapt this technique

@Topsalesman1981

10 күн бұрын

Did someone say adapt? With this treasure, I summon...

@toututu2993

10 күн бұрын

He already retired with big cash and think his age isn't gonna make him faster

@SpamtonWhitKROMERS

10 күн бұрын

​@@Topsalesman1981Eight-Handled Sword Divergent Sila Divine General Mahoraga!

@mewhenthe1

10 күн бұрын

​@@Topsalesman1981the jjk brainrot im gonna explode

@Iegduejbdjskehjd

9 күн бұрын

he is swinging his arms and is tilted

I hope athletes will use this new technic of running at the next Olympics…

@wsg1231

12 күн бұрын

Serial killers will make a fortune

@johnsonfromml8662

11 күн бұрын

nah this simulation the dumbest thing I've seen in my life

@TacticalWalmartBag

11 күн бұрын

Technically it realistic if it was a race with robots, tgis wouldnt be possible for humans because we have pain and we get exhausted​@@johnsonfromml8662

@christianodaley4813

11 күн бұрын

​@@johnsonfromml8662what did u expect?

@ordinarynoob.

10 күн бұрын

@@johnsonfromml8662you have yet to see even dumber things than this video

9:03 Footage of me running to my bedroom after turning off the lights downstairs

@StillBeingSad

12 күн бұрын

Oh my god I'm dying

@mauricemotoman3305

12 күн бұрын

5:24 he runs in sync with the beat

@Davisthedudeedits

11 күн бұрын

​@@StillBeingSad I can relate with everything

@Wizz18822

10 күн бұрын

Overused joke not funny

@Sharmal96

8 күн бұрын

12 year old joke from a 12 year old kid​@@komodo420.

A lot more people would watch running competitions if this was how contestants ran. Also a lot of reason why it runs like that is that it can't shift its joints or flex its upper torso.

@LeoLau-ip9bv

25 күн бұрын

ahh ok that makes more sense thanks

@rodrigomendes1980

25 күн бұрын

Also it has insane stregth too. Nobody can flail their arms that hard nor for that long. Shoulders aren't very strong and have low endurance

@liam8370

22 күн бұрын

I don't like sports but if they ran like that I'll be the first in line to watch that sht

@lememz

20 күн бұрын

crackhead olympics

@nemovulture

12 күн бұрын

I also think that because when people run, they swing their arms by the side of their body, opposite to their leg to cancel the rotational force created by a leg swinging when running, and the AI even with limited range of motion, doesn't have a preference for what is "comfortable" in a sense for arm positions and learned that by swinging the arms above its head, required less speed by the arms to cancel out the rotational force, as the distance from the center of mass to where the arm is swinging is larger, it creates a larger torque on the body, better canceling the rotational force required to pull your leg forward for the next stride. However for most people, raising your arms above your head to run is uncomfortable and the marginal benefit to the AI isn't justified for actual people to use

He's not running, he's falling. He didn't (just) beat Bolt, he set the world record for longest stumble before a fall.

@ellenoresmith6504

17 күн бұрын

XD

@crossbo5345

11 күн бұрын

A run can be described as a controlled fall

@ellenoresmith6504

11 күн бұрын

@@crossbo5345 why does that make sense O.o

@Thatbikingchannel101

10 күн бұрын

Running is just catching yourself from falling

@Bocchi-the-Rock_

9 күн бұрын

Furthermore regular walking is learning how to almost but not quite fall - I'm sure many of us have seen babies and toddlers learning to walk

6:49 penatly for existing *i feel u bro* XD

@StaticMarblesChannelouioui

26 күн бұрын

same

@live_destin-3408

26 күн бұрын

fr, bro's just copying real life

@liam8370

22 күн бұрын

bro is as unlucky as me

@Bushman06

11 күн бұрын

😐

in the end it looked like it was actually running from a serial killer

7:42 bro took "now imagine youre being chased by a serial killer" to heart

6:46 New achievement unlocked: Suicidal

The end is basically Sisyphus but with running.

@Juanao-nk3vu

25 күн бұрын

One must imagine Sisyphus’s happy

@galacticlava1475

25 күн бұрын

Also the bot is in eternal pain for just existing, which was definitely the intent for Sisyphus’s punishment

@AppuYoutubeGuy

13 күн бұрын

One has to imagine Sisyphus sweating

7:23 sounds like real life

@stargazzer9166

13 күн бұрын

Sounds like Mr meeseeks

I think what it needs is a reference for how to run to help it train better. It kinda reminds me of a baby, but it learns how to move around by watching the ones who raised it. Like feral children move like dogs. Also, it doesn't have to conserve energy and minimize physical damage to its body

@dwsel

22 күн бұрын

Indeed I feel this model has different body parts weights and doesn't contain muscle model at all. It wouldn't be able to run in the real life.

@TooHarshForYou

15 күн бұрын

But if we teach it how to run we will be defeating the purpose of the experiment. What we want to gather from this video is a new method to run which is seemingly undiscovered by humans but seems to be more efficient that humans run

@xenaisu

3 күн бұрын

@@TooHarshForYou Nobody said this video is about finding a new way to run bro, no offence. We are talking about a game engine here if you read the authors comment right under his video you will even catch a glimpse of him saying that there are a lot of things that are out of his control/too hard to replicate in the engine. If this was real life the AI would face-plant just like at the beginning of this video, and say this was real life, and you could stick a human in it's position to do that exact run with all the same forces and movements. You would probably finish that run with both ankles dislocated and more than likely a few muscles pulled if not worse. Although I did notice the same thing that you have watching this video, I'm pretty sure that humans even at their peak would miss some really fine details that could improve ANYTHING that they are trying to accomplish. That is the human limit. Otherwise we would probably be watching a vertical aerodynamic beyblade with limbs that can push itself to the speed of light.

Petition to make an AI to train entirely as a ninja. Do different scenarios, like: shuriken throwing at a targets, katana targets to cut (or just hit) and doing parkour above pillars

@liam8370

22 күн бұрын

where do I sign?

1:20 uh did i see what i just see?

@Smile_Void_Smile

12 күн бұрын

yep. Ai weinor

@Pixelsnake-uo4vy

11 күн бұрын

No ai butt

@UwU-fx7md

5 күн бұрын

Why is it that small?

the ai's whole life goal was run, get treat, run faster, more treat, beat usain bolt

This is me learning to walk again after standing up to fast and everything goes black for 10 seconds

@abhir7823

7 күн бұрын

Postural hypotension

I swear I felt every bone crack in that ai’s body when he beat Usain bolt 😖🤣

@lazy_lepord

22 күн бұрын

You made roling 😂

I almost died laughing at 7:33 💀

@mr.titanicman4571

25 күн бұрын

Same

@andderson1024

24 күн бұрын

The AI: I almost died today and you're laughing?

@GoldBaconHair

12 күн бұрын

Not even lying a chocked on my spit💀

@DVnc_

4 күн бұрын

​@@andderson1024The Ai: I amost died

this is seriously cool, I love these videos where they train AI to do random stuff

@vergilasgard4845

19 күн бұрын

Yeah same

You should penalize for using its muscles to get more efficient moving and less flailing

@patrickstening

26 күн бұрын

the person that made the ai wants the ai to go as fast as possible. the person that made the ai doesen't care if it looks unnatural.

@Kaepsele337

26 күн бұрын

@@patrickstening Then why not give it wheels? My point was to give it realistic constraints. A human would not be faster with that kind of movement, so the AI did not find a faster way to run.

@NyothanZurc

26 күн бұрын

@@Kaepsele337the title is "Ai learns to run faster than usain bolt" the ai has succeeded in this. There is no lie

@it_will_be_ok.

25 күн бұрын

but he doesnt run faster than usain bolt he runs faster than usain bolt simulation in a simulated world

@NyothanZurc

25 күн бұрын

@@it_will_be_ok.this is irrelevant. No one has said the robot can run faster than usain bolt irl. (Because it doesnt exist irl) though it could if it did. So no lie has been told

The 2nd training session was actually such a smart way to force the AI to use both legs

8:28 I want to see someone do this at the Olympics!! 😂

@SticK0o

12 күн бұрын

🤣🤣

@Xalitis

10 күн бұрын

I guess with this technique the runner reaches results of 15 secs for 100m

5:37 me off my third bottle of cough syrup outside the gas station

@ldb45

10 күн бұрын

💀

this is one of the first AI training videos where it feels like the creator actually knows what they are doing

8:02 seing him run like that really make me understand the serial killer Metaphor 😂

*That is how I run to the toilet when getting home, after driving for hours and not stopping..* 🏃🏼💨

Imagine you release this video and wake up tomorrow to the running community losing their minds about the new technique that was discovered by AI.

Really nice video. Can't wait to see the next one 👏🏻

1:42 dang i feel smart now

@Smile_Void_Smile

12 күн бұрын

Keep dreaming buddy (this is a joke)

bro i cant take this shit serious with that running

Great video all around! Keep it up!

He definitely looks like a serial killer is following him. Loved the video btw! Very educational too

You'd likely get more natural movement, eventually, if you could penalize joint and tendon strain appropriately.

8:36 me omw to greet the woman walking alone at night (I'm such a good person)

Great choice in the montage music. Also very cool video👏

this is insanely interesting to watch, its like watching a new life learning how to walk and run but in a youtube video, this might be a top 10 youtube video ive ever watched

**trains the AI how to walk** **proceeds to change the AIs body, and now it has to learn to walk again** bruh.

give it more reward for exceeding the target velocity

Man i hope you model your future videos on this format. This was so much fun to watch, compared to your earlier videos. Hope this video blows up and you get a ton of subscribers soon

nobody gonna talk about this dudes edits? shits so fire for 10k subs bro is working hard

My dad every night 3:25

@DVnc_

4 күн бұрын

Boogie😂

70kg for 6ft is genuinely so underweight, bro should go on a bulk

@MLG4TheWin

10 күн бұрын

I am 58 kilos and 6 ft lol

@IronOre33

10 күн бұрын

@@MLG4TheWin twig lol

@MLG4TheWin

10 күн бұрын

@@IronOre33 that's crazy

@IronOre33

10 күн бұрын

@@MLG4TheWin bro im jk

@IronOre33

10 күн бұрын

@@MLG4TheWin chill

6:00 me walking to the fridge to get another beer

it literally just teaches itself to fuck with the engine's physics to go freakishly faster

doesnt count. You should add heat generated from muscles, overall energy efficiency and probably a few more things to make this belivalbe new word record

@aaz.2007

20 күн бұрын

he is faster tho

@me-cm8or

19 күн бұрын

@@aaz.2007more like a car

@placek7125

18 күн бұрын

@@aaz.2007 if people didnt need to worry about heat from myscles, speed of delivering energy to the cells and all this stuff, they too would probably be just as fast as this AI

@martinkrenk

17 күн бұрын

Yup, there are hardly any constraints tethering this experiment to the real world. Kinda meaningless tbh.

@Dexuz

14 күн бұрын

Too complex, also even if we did simulated all human limitations on the program, what would we base these limitations on? After all no matter how much some people train, they'll never surpass Usain Bolt, as their limitations are greater than him's. So at that point, you'll just be making an AI that has Usain's limitations (impossible to accurately know and thus code), which would mean the AI would beat him comfortably given enough time.

Hes walking like A baby from first steps❤ 5:15

@stkboi

2 күн бұрын

It looked adorable 😭

I’m just mad I didn’t get to see a final race between the two 🤣

Very informative and entertaining!

Not trying to hate but....this is just silly.

Please don't use generative slow motion fps increase thing, it doesn't look good. It just makes it harder to understand what's going on. Besides that, beautiful video. Now I will use this new running technique to go to work everyday. Hop I don't fall off :D

You earned my subscription

30 old me laughing his ass off while being amazed, confused, astonished and everything else at the same time while my wife sits next to me smiling and my son sleeping.

Cool idea, well explained concepts without going too in dept, ngl my friend you have everything in order to be a great content creator

Millions of years of developing and we finally found the most optimal way to run.

This video is a great mix of funny and educational. Less than 6 thousand subscribers?! I hope your channel blow up.

I love relearning what a neural network is every time I watch an ai video

It’s late at night and I burst out laughing at the ai flailing around while running with the dramatic music in the background

He really took the “is like you are followed by a serial killer” too personal.

A whole new meaning to "existence is pain."

this experiment would be so much more interesting if you could limit the force the ai can apply on each joints, to the same strength as usain bolt, so the ai as to really use the technic instead of pure strength

The wild flailing with the arms seems accurate in your story about a serial killer chasing the poor AI

Bro I thought your channel would have millions of subs with this level of quality

8:49 The run I do when there are dogs chasing me 👟💨

Now if somebody ran like a maniac like the ai irl, could the physics be true to beat Usain Bolt?

I will begin my training with this new optimized technique!

Really hoped the Ai will at some point use perfect sprinting technique. Nice video man!

New subscriber unlocked

Can you make it follow a Usain Bolt Run First then train it to run faster? This way the running will look human

The first training session had me dying 😂

Think this thing is gonna chase me in my dreams when I go to sleep. It’s oddly terrifying and hilarious at the same time.

The ai could be a boxer with those flailing arms. Very good technique.

@ldb45

10 күн бұрын

Underrated comment 😂

Well I love those videos, where AI learns to do something in record time. But to be fair. For a real competition, there should be a physical simulation, with mass and inertia, as well as simulated muscle power and an energy budget for the AI to spend on movement.

7:31 Bro is running for his dear life after being punished for existing.

love how you forced him to stand stock straight to start, seems really optimal

He's litteraly running for his life while forcing his heart to beat by slamming it with his fist as he goes

now add air resistance and it will optimize its running technique

Hi! I'm Mr. Meeseeks! -Mr. Meeseeks, outrun Usain Bolt. You betcha!

So, as i understood, to beat Usain Bolt you have to: 1 - Run with your hands up in the air 2 - Right arm should periodically smack your face or chest 3 - Run slightly leaning to the left 4 - Do not lean forward only, run leaning back sometime 5 - Do microjumps sometime too

I'm definitely giving this a try next time I'm running for any reason

Thumbnail: Usain Bolt & Ai My brain: QWOP!!!!!!!!!!!!!!!!! Legendary

Can you show behind the scenes of how this is coded if someone wants to try it?! Please

Will definitely adapt this technique next time I run

bolt got dem lego hands

Imagine Terminator with Arnold. I would die of laughter. His weapon is his body language. "I'll be back" 😂

Cool, can't wait until someone actually makes an accurate running simulation for an ai

Sprinting coaches need to see it and learn this revolutionary running style.

I need to learn that olympic floppy fish running running technique.

An interesting factor is that some competitive sprinters have recently began trying to run using both arms and legs, and many biomechanics PhDs speculate that in the near future with improvements to technique, that a quadrupedal sprint will be faster than a bipedal one. So in other words, the original demand that the AI stay upright actually prevented it from learning the fastest method. It's interesting how the thinking of these AI models is completely limited by their design. Makes you reflect on how bad we are at explaining our goals to a robot.

6:48 "We're now going to penalize the AI for simply existing." Hey, just like real life!

maybe this is a future world record that will actually never get broken

The -0.0005 penalty struck absolute terror into that AIs run.

I'll be sure to use this running technique.

genuine question, do u mind educating me how do u use the same AI for those 3 training sessions? Like u fine-tune the first version to become a second version or what?

Almost seems like there's an unneeded joint. Course maybe that's the secret joint for speed.

Seems you could incorporate an energy efficiency model as well. Assigning energy expenditure to movements based on length of movement verses distance traveled.

The record remains unbroken until the robot with the AI runs that 100 meters physically