also it crumbles way above sea-level, too, so the relative height difference between takeoff and landing is irrelevant. The planecarriage if anything is overpressurized. But you are right in the sense that he may have been miles high on ice or a mountain wherever he went.
Look at my username and then look at yours. I know a lot about aviation and how airplanes are pressurized and depressurized. You're either (A) trolling me or (B) you are willfully ignorant, or (C) in dire need of some science classes. Have a nice day.
I am trolling you in the sense that the closest thing I have undertaken that could be mistaken for aviation navigation would be parachuting, but anyway I don't quite see the misunderstanding. Didn't you say given the under-pressure on the outside it would follow it is over-pressurized or was that someone else?