Did you know that if you compress air and then rapidly release it, the air temp drops and fog forms? vapor?
It makes me sad how many fellow anons are so fucking ignorant of basic physics and how the world works.
So when water vapor forms at 30,000 feet where the air temp is about 50 below zero, it then dissipates in minutes? Seems like the extreme cold temps would cause it to linger, perhaps for hours depending on conditions.