There's also this (https://www.youtube.com/watch?v=_IqWal_EmBg https://www.youtube.com/watch?v=_IqWal_EmBg) famous recording of a Learjet 25 crew suffering hypo

There's also this (https://www.youtube.com/watch?v=_IqWal_EmBg https://www.youtube.com/watch?v=_IqWal_EmBg) famous recording of a Learjet 25 crew suffering hypoxia at 32,000 feet. I think it demonstrates quite well that you're _not_ going to lost consciousness within a few seconds at that altitude, although the danger is not to be understated.