They can't understand this real oxgen and nitrogen
blanket because they don't have gravity, they don't have gravity because they don't have «real» gases subject to gravity, with volume,
weight, attraction etc., and in its place have subsituted the imaginary massless hard dot of nothing «
ideal» gas not subject to gravity without these real gas properties.
Our full atmosphere of real greenhouse gases, which are not
ideal gases but have volume,
weight, attraction and subject to gravity, act as a
blanket weighing down a ton per square foot around the Earth keeping the heat from the Sun's warming of the Earth from escaping too quickly before the Sun again heats the surface.