i'm investing in a company called orthosensor.hey have a device when the surgeon finishes doing your knee, before he sewed up the wound, they put this device in and it assures the doctor of alignment. you'd be amazed the number of knee replacements that have to be redone. maria: wow. ken: who pays nar? there's a great opportunity because as i look at it, somebody's got to pay for the other operation if it's got to be redone. no way you can compensate the patient for the pain that comes with misalignment. there's a real opportunity. more people are getting new knees, new hips, i haven't had anything. maria: you haven't had anything. ken: i have a peasant's body. maria: you are very active. ken: active and i have good genes, that's a good start. what else do i see? i see great opportunities, appealing and catering to older people, we're living longer, we're living better quality lives, so anything that relates to helping older people enjoy their last years or their later years, there's a great opportunity there. you know, we slam he