If you have to develop 100% accurate human detection and avoidance systems in order to avoid catastrophic tissue damage for users of a mild convenience, maybe y

If you have to develop 100% accurate human detection and avoidance systems in order to avoid catastrophic tissue damage for users of a mild convenience, maybe you should pack it in. Some things are worth the risk. Spaceflight, experimental cancer research, assassination of despots, hazardous waste storage technologies. Sometimes you really do need to crack a few eggs to advance humanity. But the 'advance' we're talking about here is the trivial convenience of not plugging in your phone.