It's a good thought exercise, but I suspect that's not the case. The plane will land and deposit you somewhere with nearby medical care, and except over the pac

It's a good thought exercise, but I suspect that's not the case. The plane will land and deposit you somewhere with nearby medical care, and except over the pacific or poles, you're not too far from an airport. There's also staff on hand that have more experience caring for most basic issues that might arise than the people around you ordinarily. There's also very good odds that a doctor is onboard, and of course, defibrillators will be onboard and at least in the US staff are trained to use them. Further the places you'd be that aren't a plane have plenty of their own safety risks, that people aren't checking for constantly as a matter of course. Whereas on a plane, there's very little that can hurt you, and your job is to, well, remain seated. A fairly safe activity, in moderation. Combined with the fact your risk of dying due to a fatal accident is about 500 in 9.4 billion, I stand by my rough assessment.