Feedback for one, many industrial robots operate entirely open-loop. It was invented in 1927, so robotics has some catching up to do.

https://en.wikipedia.org/wiki/Negative-feedback_amplifier

Can you elaborate? I'm not seeing the connection.

Robotics could be much more efficient, require less maintenance and cause less havoc when malfunctioning. That alone reduces the amount of jobs required by a fair bit

What does this have to do with robots running "open loop?"