the oxygen so he can breathe but control the pressure so he doesn t go through decompression. bill: so long as all the tools hold up at that altitude and that amount of force too. you say on one level this is the ultimate, because i can. there were numerous firs on this. what are they. it s an incredible daredevil stunt. it s the highest man balloon jump, highest person without a spacecraft to break the sound barrier. he s chuck yaegar without an airplane. this is tpurbing what the human body can understand. bill: do you think he can pull it off? i think he can. he did an 18-mile space jump. he s got basically the pwefrs the air force and nasa on board and red bull. bill: and a lot of cameras on this. we ll watch and see how it all unfolds. thank you, corey. corey powell.