Tesla CEO Elon Musk has said there is ‘no real limit’ to the value of the ‘humanoid robots’ his company is building, and has suggested that one billion of his cyborgs could soon be in circulationTesla CEO Elon Musk has said there is ‘no real limit’ to the value of the ‘humanoid robots’ his company is building, and has suggested that one billion of his cyborgs could soon be in circulation