that in the room and osmosis would cause the water to flow through the pig's bladder. 7 billion people is barely okay. 9 billion people, we will not make it. not enough food or water. >> reporter: the desalinated water is incredibly intensity. >> instead of pushing the water with the amount of energy, let's draw it to the membrane with the solution. >> we don't get rid of all of the electricity, but 23/4 of it. if we can show that, the big guys get interested. then this thing will start taking off. >> elon. evolution. a rare glimpse into the mind of a visionary. brought to you by s.a.p. s.a.p. helps companies run more