Elon Musk unveils plans for humanoid robot that uses Tesla's artificial intelligence

Musk said building a humanoid robot is a logical next step for Tesla, since, he said, it's already "the world's biggest robotics company," with its cars basically robots. The humanoid robot will use all the tools in Tesla's vehicles -- sensors, cameras, neural networks, etc. -- to autonomously navigate the outside world. "We're making the pieces that would be useful for a humanoid robot, so we should probably make it. If we don't, someone else will -- and we want to make sure it's safe," Musk said. "I think this will be quite profound," Musk added, speculating that the robot could eventually change how the world works.