for this report we interviewed philosophers and scientists around the world. we talked to german philosopher thomas metzinger who advocates the use of ethics guidelines for ai development in the e.u. . physicist max tegmark who warns about the development of an all powerful ai and a totalitarian surveillance state. and that german computer scientist you're going to schmidt who who predicts that ai will spread from the earth into the cosmos. we met professor schmidt who at a business conference in zurich. he often speaks at such of em's where he outlines his vision of the role that artificial intelligence may play in our future. she. his presentations are wide ranging and thought provoking.