It is interesting. There are also wearable robots that augment humans not replace them: http://www.wearablerobotics… and http://www.springactive.com (Full disclosure I am a founder and an investor of both)There are many ethical questions as she points out. When we go to West Point and Aberdeen Proving Grounds in addition to physicians, physical therapists, and physiologists, there also is a Colonel in charge of ethics. What are the ethics of these things, if you knew you could run faster would you willingly amputate a good leg?? Should you be allowed to??Tough question.When working in warehouses like Fedex or Amazon what are the ramifications. These are questions we discuss. Which is why we started the conference.