mashable: "No doubt in a 19-year time frame there will be more robots doing physical jobs," said Gates at the Code Conference on Wednesday. by Lance Ulanoff
'As robots and AI take over repetitive tasks, there will be an excess of labor resources.
'"How do you retrain?" said Gates and added that the other concern, long-term, is question of purpose and control.
'Even those concerns did not dampen Gate's enthusiasm for AI. He called it the holy grail as he envisions a future "with machines that are capable and more capable than human intelligence."'