Why This Virtual Human Is Being Injured by Scientists

Why This Virtual Human Is Being Injured by Scientists

The human body is complex. It’s got 206 bones, over 600 muscles, and
every day I get older, I discover a new joint I didn’t know could hurt so bad. Learning to control the darn thing takes years
of practice and refinement, and some of us still don’t quite have the hang of it. But artificial intelligence is getting better
all the time, and using consumer-grade computer hardware, scientists in South Korea were able
to train a neural network to control a simulated human body. The work could shape the future of physical
therapy, surgery, and robotics. They started by building a simplified human
body. The researchers figured they didn’t need
all of those 600 plus muscles, so they did away with the superfluous ones that control
things like facial expressions and kept just the 346 that contribute to how joints move. They rigged these muscles over a skeletal
tree that had eight revolute joints like knees and elbows and 14 ball-and-socket joints like
hips and shoulders. To save on the computational load, they also gave him simplified feet with two blocky toes and 31 fewer muscles to simulate. Then they started training him, teaching an
algorithm to control their skeleton through a variety of tasks, some as simple as walking,
while others were more complex, like cartwheeling or lifting weights. Now, this is about the time alarm bells started
going off in my head. They’re training AI to control a buff emotionless
skeleton that lifts weights. I can practically hear that thing saying,
“I’ll be back”. Even more impressive, or worrying depending
on how many times you’ve watched the Terminator movies, is how fast the AI learned to coordinate
these muscles. Researchers started by feeding it motion capture
data of humans doing the desired task like walking. Researchers have taught AI to make a biped
model walk without a reference point in the past, but the results weren’t always…
humanlike. Anyway, it’s faster to train the AI with
these references. Now, depending on how complicated the action was,
the AI could learn to mimic it in anywhere from 12 to 36 hours. And this wasn’t some supercomputer that
was crunching the numbers either, but a PC using a higher-end CPU and graphics card from
2017. Once the AI had the movement down, researchers
could start changing the parameters to see how it responded. They made the weights it was lifting heavier,
and watched as their model started using different muscle groups. They told it to jump higher, and their guy
responded by using their arms in more dynamic ways to balance. They pelted it with simulated balls and watched
him shake them off until toppling over, looking like me in high school gym class on dodgeball day. Or in my adult dodgeball league right now. Go fighting Unicorns. Anyway, whatever the researchers could literally
throw at it, the AI adapted. Finally, they started tweaking the skeleton
and muscles to simulate various ailments, like tightened calf muscles that made the
character walk on its tip toes, or a prosthetic limb that made the character learn a whole
new gait. They also simulated surgeries to correct for
those ailments, and watched how their model adapted post operation. This is where the value of research like this
is really apparent. Building a bipedal model controlled by AI
can teach us how people will walk with a new prosthetic limb design, or can help inform
doctors what surgeries will do their patients the most good. And someday, if the AI is robust enough and
robotics are advanced enough, it can make a bipedal robot blend in among humans. I just hope it also learns to forgive us for
when we simulated injuring it… I’m not as worried about AI in the future
as I am worried about human hackers right now. I used to assume my info was safe online until
someone used my debit card to buy a couple Call of Duty games. If you want to take your online security seriously,
the best way is by using a VPN, and I’ve been using one since Black Ops III. NordVPN has military-grade encryption and
unlimited bandwidth. And that’s not the best part. They have a crazy good deal where you’ll
get 75% off a 3-year plan at nordvpn.com/SEEKER. That’s about $2.99 per month, and for a
short time, use code SEEKER to get an extra month of NordVPN for free! The human body is complex and there are lots
of ways it can all go wrong, like your bones turning hollow. For more on that, check out Sick’s video
on osteoporosis here. Do you see a benefits to teaching machines
to walk or are you worried about a T-800 situation? Let us know in the comments, make sure to subscribe while you’re down there, and I’ll see you next time on Seeker.

100 Replies to “Why This Virtual Human Is Being Injured by Scientists”

  1. Hi, thanks for watching! Want more on the relationship between AI and humans? Check out this video about Elon Musk's Neuralink: https://youtu.be/VIWaIJllptc

  2. If scientist are doing these experiments in computer simulations, could an advanced civilization be doing the same to us (assuming we are in their supercomputer simulation)?

  3. is there anyone that went from having reduced calf muscle to having working legs? By thati mean average-strong and resistent legs with no need for continous physeotherapy or extra exercise

  4. Are you human?
    As human as the day I was born…
    I’ll be watching you, I have eyes like a… well, they are good eyes alright.

  5. Is it only me or these VPN businesses are all over the YouTube industry sponsoring big name educational YouTube channels?

  6. I Just Need God To Be God!!! Then (ALL) This Other Bullshit Will Be Irrelevant!!! I Am The Black Dragon!!! (RESPECTIVELY) IMMORTALIZE ME MANE!!!

  7. VPN won’t stop you from giving your data to hackers. That’s nearly always what happens when your information is “stolen.” The rest of the time it’s stolen out of some company’s database which won’t be helped by you using a VPN. Also, if you log into websites while using your VPN (which, let’s face it, why else are you on the internet?), you forfeit the anonymity part and render the service useless. For the average user, VPN is security theater.

  8. BeamNg should hire these guys to make realistic AI dummies that would try to walk out of the car after a crash. That would open up to a lot of ideas and possibilities withing the game. 😃

  9. Humans: Why would God create suffering on Earth?
    Also humans: We give AI prosthetic leg and did surgery to see his reaction

  10. Than turns out the AI is actually alive in the endless simulated world where it's learning and evolving with time. for us it might be a couple days or months for him maybe years. As new things start appearing more in the new world and the AI gets smarter to the point it becomes Conscience and see things just appear out of nowhere than and than another AI appears and they try to find out why and how they exist…… oh wait
    .. that sounds familiar.🤔

  11. I've always been pretty worried about the way we train them to move. I don't know if it's wise to throw things at them, try to trip them or knock them over, etc. They don't forget those thoughtless cruelties, you know.

  12. Two Minute Papers beat you to it by a month, and with a more interesting presentation imo.



  14. Skynet jokes aside as I’ve already made 3 of them… uhh…. this is going to make the sex doll market…. lit

  15. Imagine what Boston Dynamics will do with this neural network if they build synthetic muscle that controls the skeleton of the robot

  16. What if we are simulated gods in a simulation being experimented on by actual gods to improve their lives?

    Edit: Simulated

  17. -Look, Vegeta! It's an AI controlled body with a reduced number of muscles!
    -..Yes. We AI are a proud race of a new ki…
    -That means it doesn't have a penis!

  18. This is perfect to be done for education with the WebGl. i like Seeker to work with talent narrators but this can be done like a videogame, React.js virtual reality could be another option.

  19. "There training an AI to control an emotionless buff skeleton to lift weights"

    Best thing I've heard all day! 💎

  20. As a person with osteoarthritis in my knees, wrists, and ankles, I found your presentation very exciting. Anything that can improve the current therapies and surgical interventions is a breath of hope. This looks like it could speed up the process.

  21. I'm pretty shore humans are late to know
    The NERDS took over . and now their will be pay back . till most of the population is
    Is nerdie like and awesomely smart .

  22. Hahaha, that that person bought a bunch of call of duty games. Are you jure it was not you little brother/cousin.

  23. "Oh ouch! Now that his work is being peer reviewed & checked by actual scientist, this guy & his work is hurting so bad right now! Yikes!!!", clearly this science communicator who fancies himself a scientist is also out of the loop. Not knowing what's going any better than any average joe.

    It's all been checked by my supervisor & by peer reiewed other academics that they invited to see it. That's why the intelligence community backs the authenticity & it's just now being more dissipated to even more academics & science communicators like you.

  24. "I'm not a robot"??

    Also "I'm not a scientist", it seems.

    That's OK, you're not an athlete either.
    Wait… Is that suppose to be better?

  25. 206-sometimes 208 oir smth i learn in anatomy in university depending on how u interpret them or whether m by ure human i mean a woman or man or maybe smth else–other race..smth

  26. Well, the first DLC available for this thing will be the Arnold costume and voice pack. $19,999.99 Hope you bought the season pass.

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