depressurization. but those will run out, too. only the crew oxygen in the cockpit will sustain. it sounds like you re saying, you believe that this was not just purposeful in terms of someone taking over the jet, but the decision to go up to 45,000 feet, which emphasize is a general altitude, because it s coming from radar on the ground, but you re saying that altitude, that choice to go above the approved altitude is very purposeful? yeah, i m staying when you look we don t know, obviously. we really don t know, we re just speculating. but with these facts on the table, if they are, in fact, facts, they make sense in a very twisted way. and that s the problem. you would not have that kind of of ascent to 45,000 unless there was a specific purpose for it. spider, what do you think happened? do you think that was a pilot