Elon Musk claimed this week that Tesla’s humanoid robots will be “the biggest product ever of any kind” — sparking a lively debate over when and whether he’ll manage to put a robot in every house. The ...

The walking, talking Optimus robots that stole the show during Elon Musk’s splashy “Cybercab” event in Hollywood last week were operated in part through remote control by humans, according to a report ...