. >> test pilots like amanda boxtel and jason geezer, how have they helped you advance this technologyy have helped tremendously. everything is unpredictable once you introduce a human into the situation. 38 ph.d.es had a different idea how to control something. without people like amanda and jason we would be at a standstill because we couldn't test anything. >> the robot still has its limitations. right now it can only be used in a rehabilitative setting with a trained physical therapist. then there's the being cost. between $110,000 and $130,000. they hope the food and drug administration can help. >> i don't get enough of these, heart to heart hugs. >> if you need another heart to heart, i'm your man. >> thank you. >> the emotional impact of this is obvious. but are the there other associated health benefits with being able to walk? >> absolutely. all the doctors and all the patients using this agree, standing up that much, helps how they digest, lowers their pain, and the amount of infections they get. >> can it be used for stroke victims and other applications? >> absolutely. tha