@Finn dAbuzz,
What are my credentials bub?
That I don't think R$ was being funny or that I don't think he was telling a joke?
All in all I'm of the opinion is that R$ couldn't find his way around a classical physics problem--something that I spent a career around as an engineer.
Take your pick; opening a window on a passenger jet at 500 mph at 35,000 feet is an unfunny joke or an indication of a fundamental ignorance of natural science.
Those are my credentials, bub--what are yours?
Rap