http://www.newsweek.com/tesla-optimus-robot-human-explained-elon-musk-earnings-call-2022-prototype-1673466 > Tesla boss Elon Musk said "the most important product development" the company plans for 2022 is its humanoid robot. > Musk commented on Tesla's fourth-quarter earnings call, held on Wednesday afternoon. He described last year as a "breakthrough" period for the company and for electric vehicles more generally.