Good point. I guess if there must be a cage since the robot will injure any person coming close, including other people working around it, then that could cause

Good point. I guess if there must be a cage since the robot will injure any person coming close, including other people working around it, then that could cause some problems. At some points, large companies were developing robots that could work alongside humans on assembly lines etc since they had sophisticated safety features. I don't know if they ever were commercially successful.