AI Invents New Swimming Stroke

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[@guymcguire1716]

AYYY It is an honor for the rag doll to be named after me :) I am very happy you liked the replicas. Thank you for your top notch videos keep up the amazing work! (my day is so great thank you for asking)

[@jjjameson3379]

This video was quite boring.. I don't know what you are talking about!

[@Ranamo_]

@jjjameson3379 The guy did very good work! And you perfectly know what the guy is talking about. And why are you leaved a comment?

[@jtiguy9375]

​@@jjjameson3379 none of b2 studios videos are boring 😮

[@Frau_Brotchen]

@@jjjameson3379 You are boring.

[@shmooters5599]

@@jjjameson3379bait used to be believable

[@ashleyberkowitz8772]

To be fair, this does look exactly like what someone swimming on 10 days of training with absolutely no guidance except a sphere of death would swim

[@OhLonesomeMe]

The ai doggy paddle

[@EEEEEEEE]

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[@tntobi80]

​@@EEEEEEEEE

[@jayantnema9610]

​@@EEEEEEEEE

[@snailcheeseyt]

@@EEEEEEEEE

[@KillyBesel]

I'm not sure it invented a swimming stroke so much as it's having a stroke swimming.

[@EEEEEEEE]

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[@crusher9z9]

its because the moving punishment being stupid and dumb just like this guy's head it should've been punished more for changing direction rapidly and punished less for longer strokes.

[@Alcatrazz21]

@@crusher9z9Jesus man people make mistakes 😭

[@crusher9z9]

@Alcatrazz21 nah man he's pumping out half baked slop glop because he won't take the decision to throw it in the bin and code it so it actually works, he knows the viewerbase doesn't care that much because 'silly red squares man seizure funny laoLOLOLOL.' low effort and low intelligence at the same time.

[@Cr1mson_Chains]

@@crusher9z9bro why are you so mad LET’S SEE YOU DO ALL THIS

[@retohaner5328]

Make him ride a horse, and the horse needs to learn how to walk at the same time

[@androcreer783]

Up

[@proudtiger2538]

this sounds amazing

[@aarnealplayzgames9580]

Next title: ai learns to ride ai horse

[@mmkf]

YES

[@crazybird199]

YESS

[@Izunundara]

Now this is exciting, because its entirely possible for someone to go test whatever swimming technique that ends up being made

[@Kero-zc5tc]

It’s def gonna go feet first.

[@Kero-zc5tc]

Realistically not gonna work sadly because a. The ai probably doesn’t have the correct muscles/muscle strength for a human and water doesn’t really work the same in software as in reality

[@fuery.]

​@@Kero-zc5tcthey never claimed it would work

[@b2stud]

You might be able to swim like this for 5 seconds

[@fuery.]

​@@b2stud worth it

[@marbeltoast]

I love how the racing AI basically looked and the human body and said "but what if you were actually a jellyfish?"

[@gray007nl]

I remember in the Spiderman video b2 said the AI has about the neural capacity of a jellyfish so it's only natural.

[@MollyHJohns]

Yep that's about it when the AI has no self-awareness (and at least a fully developed brain).

[@BackdoorBarnyard]

I think the AI would swim very differently if it had a set of nice buoyant lungs.

[@EEEEEEEE]

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[@horntx]

or if it was punished for acceleration of the limbs instead of motion. We swim in nice continuous strokes because IRL if you get your arm moving it is easier to keep it moving rather than whipping it in the other direction.

[@beanboy6934]

@@horntx A stamina system using data from the motion of the joints could help promote typical swimming by having the stamina "meter" go down based on the speed of movement of each joint, but would also have a constant but slow recharge to prevent stamina from running out entirely. Penalizing the ai for having stamina go lower than a certain point and substantially reducing movement speed when stamina drops to zero would encourage the ai to make more efficient and controlled strokes rather than violently vibrating.

[@lordhickory3322]

7:00 That's unfair... Anytime I try a swimming stroke like that the lifeguards at the pool drag me out and call an ambulance because appearently I am having "a stroke" or something...

[@Splarkszter]

lmaoooo

[@EEEEEEEE]

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[@masterlightningpanda8665]

Yeah, theres many types of strokes. Breaststroke, butterfly stroke, etc. Idk why the lifeguard would be worried. Maybe they're just jealous?

[@lordhickory3322]

@@masterlightningpanda8665 probably

[@sn7.7]

@@masterlightningpanda8665i love your humour

[@Chai_Rhythm]

"There aren't any characters in my videos who can swim" Literally all the fish patrons O_O

[@SomeGuyNamedDezecra]

I mean it's funny that they can't swim

[@EEEEEEEE]

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[@ethanwilde4716]

Yeah they swim in the air not swim in water.

[@marisakirisame1st]

its like the underwater ocean in spongebob

[@poggins4480]

thats the JOKE

[@invictus127]

"Here's the racing AI, it's fast and it can go straight" *shows clip of AI slowly derping along in a less than straight path*

[@user-ho2pp2pu1f]

4:26 "Information I found in Hannibal Lecter's cookbook" I had to rewind because such a great line in complete deadpan 😂 😂

[@b2stud]

I had to Google the info and I kept thinking "this is such a weird thing to research"

[@super-cylinder]

@@b2stud What are you guys talking about. Also how tf your Comment is 35 min Old, and his Comment 30 min. Neverthless I love your videos Edit: nevermind. I refreshed and it fixed

[@tiagogarcia4900]

This channel truly is something else.

[@mattybrunolucaszeneresalas9072]

What do you mean? ​@@b2stud

[@b2stud]

​@@mattybrunolucaszeneresalas9072 Googling how much space a human takes up / how much area the skin covers is something a serial killer would do

[@nathanb011]

I think this wouldn't have looked like Guy was exerting the maximum possible amount of energy to swim if you had minimized acceleration of limb movement instead of direct limb movement.

[@chemiczny_bogdan3467]

I think it would make the most sense to penalize physical work.

[@Qfeys]

I don't quite remember how it was implemented, but I believe that the velocity of the limbs is set by the brain. I would guess that the result would look much more natural if instead the force on the limbs was set, and the velocity derived from that.

[@erictheepic5019]

Rather than changing the AI reward system, he could also make Guy more realistic; Guy moves *way* faster than a human can. Real human muscles can't immediately produce the full force they're capable of, instead they start at zero force and take a moment to 'ramp-up'. I suspect that if Guy behaved more like this, the strategies found in many videos would look a bit different.

[@ferrishthefish]

​​​​@@Qfeys That would add another layer of complexity to the AI's task, which would likely increase training times drastically and provide little benefit. As long as the AI achieves human-like movement in the end, there's no problem allowing it to flail about inhumanly during training. So b2s ultimately had the right idea: let the AI flail about however it likes, but reward human-like behavior / punish inhuman behavior. There may just have been alternate ways of structuring the reward system. For instance, since force can be calculated from change in momentum divided by change in time (technically, this would be net force rather than applied force, but minimizing net force will also minimize applied force, so it's good enough for training purposes), let the AI control its limbs at will but punish it for exerting forces over a certain threshold for each joint.

[@kaybeeh3717]

i can't believe you got me to watch a furiously-jostling red guy jerk around underwater for almost ten minutes straight. excellent work.

[@ezkillguy8316]

I *wish* I could swim like Guy could, he’s an inspiration.

[@primmadonnagirls]

the amount of physics calculations and coding problem solving going on here is truly insane. I also really appreciate you giving us fun animations and visuals to look at on top of all the impressive AI stuff happening :)

[@b2stud]

Tyty

[@lpsp442]

@@b2stud Google translate offers to translate "Tyty" into English....

[@emdivine]

@@lpsp442 and it spits out that it means "Tyty" Thanks Google Translate

[@CodeF53]

I would like to see the swimming technique developed without punishing large movements.

[@childofnewlight]

I agree. This can't possibly be the "most efficient" method.

[@hystericalgd9497]

yesss

[@svensorensen7693]

"He can only hold his breath for 590 seconds" Ah, so Guy is short for Guybrush

[@heinrichagrippa5681]

Now that's a deep cut... the kind one might get after being told they fight like a milkmaid.

[@schm1596]

Just about died when you deleted the sand castle and vowed to refund the patreon lol

[@superfalconpunch2]

Don't let the swimming AI distract you from the fact that this man just committed cold-blooded murder at 5:36. Remember, it's not a crime if it happens in international waters and there are no immediate witnesses.

[@SgtSupaman]

Well, it's harder to be caught in international waters, but it is still a crime. If not committed on a vessel registered to a specific country, you are practically opening yourself up to being charged by any and every country that wants to charge you.

[@akidafloof]

​@@SgtSupamanDo I need mention the king of mars and therefore mars pirate

[@ZaTimou]

The Stroke stroke is the way to go apparently

[@SuperM789]

"there aren't any characters in my videos who can swim" already off to a great start

[@EEEEEEEE]

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[@Ethan_zox]

The patrons:

[@atruepanda1782]

“There aren’t any characters in my videos who can swim.” What… about the fish?

[@ezkillguy8316]

The fish are cheating. Natural talents don’t count.

[@nuclearmedicineman6270]

Majestic. Like watching a dolphin surfing the bow wake of a boat.. then having a stroke, and getting sucked into the propellers.

[@user-nj1qc7uc9c]

perhaps try a penalty for jerk in future videos? to force the AI to make, umm, smoother movements?

[@davidt01]

Giving a tiny penalty for any movement, so it learns to optimize energy is a good idea.

[@Jamlord2061]

it’s only flapping it’s feet. very fast

[@Ana_Ng]

5:25

[@marinellovragovic1207]

​@@Ana_Ngthis is literally the problem. instead he should have punished high acceleration of the limbs and not their speed

[@Ana_Ng]

@@marinellovragovic1207 sure, that makes sense

[@Kaitri]

The banjo Kazooie transition into the deep sea cavern... beautiful

[@b2stud]

I appreciate my fellow banjo kazooie fans

[@Kaitri]

@b2stud my favorite series to this day

[@tiagogarcia4900]

2:44 A fire breathing kangaroo?!? Honestly, I never get tired of the non-sequiturs in your videos. Though nothing will ever top the space kangaroos from the trajectories video.

[@Orangekid65]

is he Australian or something?

[@spiritmonarch]

"Anyway... here's the racing AI, it's fast and it goes straight." 0_0

[@literallynoone9705]

*violent hip thrusting* yeaaaaap. just how I swim fast.

[@oscaranderson5719]

_slowly veers to the right_

[@arflopped]

5:28 him starting to shout and go out of character outta nowhere made me laugh really hard 😭

[@Harmfulgorgon]

I sure hope you added an air factor so I don't drown trying these

[@Gobbler.]

i think you'd break every bone in your body if your limbs moved like this

[@Cryptik_Midas]

@@Gobbler.you are assuming that they would have bones

[@interstellarsurfer]

AI is wonderful at probing out and exploiting any defects in the physics simulation. ❤

[@kaden-sd6vb]

He's just like me fr

[@Wizzkidwas]

There's so many cool little details in this video, so much effort going into too many things I especially like the return of the evolving speedy fish bois at 12:00 RIP Verzart of Vhonowslend he was a real one

[@LendriMujina]

2:46 Nice of one of the Space Kangaroos to step out of their ship instead of blasting from afar like they usually do. Guess even they can't resist the allure of an Earth swimming hole.

[@lpinf]

When guy came back up, i started hearing the sonic drowning countdown music in the back of my head

[@loopienooper]

Thats a long time without an oxygen tank, guy is built different

[@spysappinmysentry000]

his chest is all lung and nothing else

[@juliettbullock2152]

“Built different” is a very apt way to describe a fellow who swims like *that*

[@TheLittleMako]

This went from "haha funny wiggly man" to "nail-biting primal anxiety" in record time.

[@mandowarrior123]

When you realise the death was preprogrammed and the timer is post production the anxiety slips away =)

[@SmolFemboyShark]

Bro is having a stroke while swimming

[@breakdancebdan]

AI invents the stroke stroke

[@Tylorean]

You are saying this like you were surprised

[@brodywilson6874]

This seems more like a seizure

[@andyoye9230]

why do you think they call it back strokes?

[@astar1147]

I stroked to this comment

[@magnus0017]

So, guy did get back before drowning with the coins, but i feel compelled to say his butt first technique was probably not the right way to get back to breathable air.

[@kilojuliet4]

OH! I think swimming is an idea i threw out during the community post for "worst video ideas" lmao. I'm excited for this one

[@Teo-ey9qg]

"there aren't any characters in my videos that can swim" as he says with fishes as side characters

[@seeinggrey7945]

You need to do an AI Olympics where different AI compete in categories for the gold silver and bronze medal

[@azzilan]

3:45 I've never felt so betrayed

[@scottbotgo4218]

Bro has THE lung capacity, he took all of everyone else's. 🗿

[@burner_394]

Why bother swimming into the hole when there's always money in the banana stand? 🍌

[@sirsamiboi]

How didn't we discover this swimming stroke earlier? Even babies can do this! ...once.

[@mmhmnms]

therapist: the red michelin man isnt real and cant hurt you the red michelin man: 3:48

[@anothrnoml]

isnt this the most ironic of the 'ai learns how to' videos because your characters are literally all fish

[@Deftempura]

it seems the vast knowledge of the AI that human minds cannot comprehend has decided that seizures are the ultimate technique for any and every sport imaginable.

[@rhysprescott8992]

As a matter of fact, I *do* want to see more ragdoll swimming. You have 24 hours to meet my demands

[@Ed-1749]

I see the AI has adopted the spiral propellor stroke, where one twists and turns their limbs to drill through the water and using the remaining unimportant limbs to create drag to turn.

[@HunterEklund-yr4wh]

Next time on AI: ai learns how to skydive

[@BrownFoxWarrior]

"Now, unfortunately, there aren't any characters in my videos who can swim..." *Pans over all the fish.* I love this channel.

[@youtubeuniversity3638]

Any chance of a future A. I. that looks at a situation and has to select one of your previous A. I.s to assign to dealing with it? An A. I. selector A. I.?

[@chisenchou]

Basically Guy became a jellyfish.

[@JakAttack12345]

I like how in one of your first videos, a bunch of people got upset that you didn't show enough of the AI doing its thing, and it seems like every new video has been an escalation of you responding "oh, you want to see the AI? Well fuck you here's half an entire video of AI flopping around" And you know what? It's great! Keep up the good work.

[@minheepark4896]

The ultimate swimming strat: squid stroke

[@skylure7124]

I love your little guys, their solutions to problems always make me smile. I think one thing that makes their approach so different to real-life ones might be the lack of punishment for "jittering," as in, changing movements rapidly? As anybody who has ever tried to punch like they're in Jojo's Bizarre Adventure can tell you, it's actually REALLY hard in real life to jerk around like that, and expends a lot of energy. If they were rewarded for more elegant movements, I bet they'd end up looking a little more like, for example... swimming, lol

[@sam_stack]

I’d like to see an australian version of guy who is running for his life from crocs, white sharks and jelly fish

[@MasterColeX2]

Got soo excited. Then saw premieres in 11 hours

[@crystalian965]

It is now 11 hours since

[@jorgesaxon3781]

18:47 look at our boy getting brillant sponsors, so proud of you buddy!

[@cchhey3812]

his stroke looks like hes having a stroke

[@DESTROY_THE_UTTP]

Guy is doing things in the water at 0:38

[@cobalt2672]

That buoyancy approximation was an impressively elegant solution! Given how fun and detailed your animations are, I'm doubly impressed that you can get these videos out on such a relatively short schedule. Guy's swimming technique reminds me of the way some bacteria move by waving hair around. Interesting how AI imitates nature in that way!

[@LazyCatAnims]

Sounds like guy was drowning while underwater, I respect his dedication to get those coins, while also definitely not being threatened

[@Cloud-nu4js]

Imagine diving in a dark cave and you see Guy.

[@jannikheidemann3805]

You would feel the jittering in the water.

[@user-fd5qz6nv7g]

"a fire breathing kangaroo" is my new favorite shape

[@schm1596]

Also I absolutely love how you stepped this video up with an awesome video game style challenge at the end. I’ve liked your other “level challenge” ones too but this had an extra cool vibe to it. Nice work!!

[@evergreenthetree32]

9:39 this is where the most relaxing few minutes of my life started

[@trwn87]

2 more important physics: - higher pressure at lower depths - timer runs quicker the more energy is exerted

[@tombouley1773]

Maybe caping the power and force output of the joints could make it learn some more natural movements?

[@mooki-forever]

5:05 why have i suddenly have the urge to hold my breath and count to ten. Idk why i remembered this after 7 days from when i watched this but it did

[@theenceladuschannelcool5777]

He wasnt kidding when he said it was a swimming *stroke*

[@penguin_king2759]

The end part reminded me of octodad. Especially the crazy movements and the weird close corner camera angles.

[@3possumsinatrenchcoat]

"there aren't any characters in my videos that can swim" bowling alley fishtank inhabitants: 😰

[@slimestudios9748]

love how progressively more unhinged you're getting - the friend in pool bit - murder of the screaming fish - drowning this poor Guy so fun to watch •^•

[@slimestudios9748]

15:14 opportunistically slipping in the Patreon advert

[@derealgod]

The background music in the montage is greatly appreciated

[@Henry00]

The amount of forces required to move limbs _that_ fast would be staggering! This is already more than any human could keep up in the air, let alone in the water 😂😂 I would love to see this again but with more realistic drag. How does it even propel the ragdoll? Can one real stroke cause realistic forward movement?

[@JohnnyZ3710]

"The AI will receive a small punishment for moving its limbs" AI: "Say less"

[@melatonin1371]

You should add a fatigue meter so that the ai is forced to learn the most efficient way to swim. Like how someone would get tired spazzing in the water vs if they learned how to do compound movements

[@danq_]

You should try rewarding the AI for consuming as little energy as possible

[@vinx312]

lil bro was angy 5:20

[@stealthdrifter4556]

the poor mans getting deleted for attempting to communicate

[@joelmontgomery1834]

Watching B2 slowly become more unhinged

[@user-un2zm1fx6y]

0:56 godaim that's some impressive pelvis thrusting

[@Zedryx69]

Congrats! You recreated a jellyfish’s brain as an AI.

[@lukepalmieri9346]

Epileptic Michael Phelps when he forgets to take levetiracetam

[@omgtntlol]

i like how the volleyball game in the background may be foreshadowing another vid or just a random side project

[@SirHuman01]

oh, so the AI can hold its breath for about as long as anyone in a movie, I see

[@MrJakeValle]

I’ve been watching this dude since the first few teaching ‘ai videos’ and game devs NEED this man

[@MajkaSrajka]

"Slowly closing circle that kills". I swear I have seen it somewhere before... You sir just have created an AI battle royale.

[@belodie]

RIP Guy. Collected the coins, but perished seconds after reaching the surface.

[@Random2]

Ah yes, spasmic stroke. I can see the olympics adopting it as a competition in the near future.

[@azhtenz]

"Cursed technique: Infinte Backshots, Swimming style.

[@felipearrais5415]

I'm actually impressed at how efficient he is at turning to different directions

[@Kae6502]

Wow, that was one of my guesses, but it was a remote call at best. You'd have to deal with buoyancy, fluid dynamics, respiration.... This should be epic!

[@probablynotdanny4384]

Fantastic video as always! I love your stuff, it's funny and educational. My only idea for the format is, maybe commentary on the finished product? I'd love to hear what you're thinking while Guy struggles not to drown, or faceplant on a frozen mountain, or such things! Your banana fish cult ad came up while I was typing this and I thought you were reading it right off my screen

[@SteinGauslaaStrindhaug]

That's how I swim too! Unfortunately every time I swim around other people, someone will pull me out of the water and give me anticonvulsants for some reason.

[@lucash5487]

"AI learns to play volleyball"

[@thethunderstone3072]

I like how even when Guy surfaces, his head is still stuck underwater, still drowning. At least he's rich.

[@zanderwinters4255]

"There are no characters who can swim." Says the man who has a pirate and an army of fish to rival that of Posiden and Neptune

[@Tylorean]

That fish food hunt simulation is such a cool detail to include!

[@CloudtheCool]

Imagine this is a new Olympic level stroke 💀