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Robert Playter

๐Ÿ‘ค Speaker
See mentions of this person in podcasts
1121 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

I've seen it land in different configurations and it still manages to stabilize itself.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And so, you know, what this model predictive control means is, again, in real time, the robot is projecting ahead, you know, a second into the future and sort of exploring options.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And if I move my arm a little bit more this way, how is that gonna affect the outcome?

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And so it can do these calculations, many of them,

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

and basically solve where, given where I am now, maybe I took off a little bit screwy from how I had planned, I can adjust.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

Adjust on the fly.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

So the model predictive control lets you adjust on the fly.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And of course, I think this is what people adapt as well.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

When we do it, even a gymnastics trick, we try to set it up so it's as close to the same every time, but we figured out how to do some adjustment on the fly.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And now we're starting to figure out that the robots can do this adjustment on the fly as well, using these techniques.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

Well, that's sort of the, you talked about underactuated, right?

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

So when you're in the air, there's some things you can't change, right?

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

You can't change the momentum while it's in the air because you can't apply an external force or torque.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

And so the momentum isn't going to change.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

So how do you work within the constraint of that fixed momentum to still get from A to B where you want to be?

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

Can't hover.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

You're going to impact soon.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

Be ready.

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

that's wild but like uh well we definitely broke a few robots trying but that but that's where the build it break it fix it you know uh strategy comes in you gotta be willing to break and what ends up happening is you end up by breaking the robot repeatedly you find the weak points and then you end up redesigning it so it doesn't break so easily next time you know

Lex Fridman Podcast
#374 โ€“ Robert Playter: Boston Dynamics CEO on Humanoid and Legged Robotics

Well, I think the courage to do a backflip in the first place and to not worry too much about the ridicule of somebody saying, why the heck are you doing backflips with robots?