excretion, sleep, a robot has no irksome brain fluids or menstruation or libido or taste buds. You don’t have to fly fruit to it on a rocket or fill it with vitamins and antioxidants and sleeping pills and painkillers, nor build for it a toilet with funnels and pumps that requires a training course to use, nor a unit that recycles its urine into drinking water, since it has no urine and it needs no water and it wants and asks for nothing. But what would it be to cast out into space creations that had no eyes to see it and no heart to fear or exult in it? For years an astronaut trains in
