It seems some people are still confused about how autonomous the Optimus bots were at the Tesla event. This clip is from another video Tesla released a while ago. It shows how the bots are controlled remotely using a haptic suit, kind of like puppets. Also, during the event, the operators were speaking through a microphone. None of the bots were talking on their own. In short, all the hand movements and speaking were done remotely, but the walking was autonomous.