Elon Musk

You know, you could disassemble or assemble a car.

The hands are...

incredibly versatile instruments.

Most of the muscles of the hand are actually in the forearm.

Your hand is kind of like a puppet.

It's mostly a puppet.

The muscles are coming from the forearm and they're pulling the tendons.

Also, human tendon design or human tendon evolution is incredibly good.

So you've got this web of tendons, you've got, I think the human hand is something like, depending on how you count it, 27 or 28 degrees of freedom in the hand.

It's amazing.

In order to create a robot that can be a generalized humanoid, you must solve the hands problem.

It's got hands, these hands.

Yes, we could not actually buy the actuators for any amount of money.

They simply didn't exist.

Even though there are, I don't know, 10,000, 20,000 electric motors out there of various sizes and shapes, we've had to design every electric motor, gearbox, and the controlling electronics from scratch, basically from physics first principles.

It's harder than any of those things.

Yes.

Harder than Starship?

Starship's harder.

Okay.