Finally he finds a doctor who treats his dizziness with a controlled video treatment that helped re-establish his brain's connection with his otolith -- the problem spot. And boom -- it worked. But it requires an Epley chair, of which there are only about 20 in the country. None in Dallas where Cuban lives. So Cuban created a facsimile of the Epley chair experience with his Samsung VR goggles, a product he purchased to learn more -- as an investor -- about Virtual Reality. It worked, so Cuban and his doctor (Dr. Mango) are now patenting the process.