Unitree Humanoid Robots Dance at Spring Festival [video]

That's so cool. I wonder what the battery life is like when doing that. It's amazing that a human can do all that on a mouthful of potato!

The safety aspects of such powerful and heavy limb moving so fast near humans is going to be an interesting one, and society is going to have to get used to it one way or the other. A single mistake like the robot spinning an arm 360 degrees due to a bad kinematic solution could be a very serious injury. Presumably normally a robot has static "no entry" zones to protect things that shouldn't be hit, but that's a lot harder in an uncontrolled space.

I have seen robot arms bolted to benches at trade shows where they could physically reach out and strike a passerby and wondered if they had soft limits on movements, and if they didn't, or they were wrong, how could I know not to approach

I’m pleased to see our new, dancing overlords wishing us a happy new year. They seem friendly enough, right?