"To make matters worse, it is mathematically defined almost entirely by experimentally-determined mathematics. "
This is one of the stupidest sentences I have ever read. Any mathematical foundation must be experimentally determined. That is how theories are tested, revised, and proven.
"This last point is the true differentiator between those who only understand concepts, and those who can quantify what they are discussing. Truly, quantification is the real skill of the engineer. It is one thing to speak about qualitative issues (the what of the physical sciences); it is entirely another to quantify them (the how much and to what extent of the same). In grade school, students are first taught about closed form mathematics and then that these mathematics are typical of scientific expression. A good example of this is Newtons famed law of action and reaction, the mathematical expression of which is a succinct F=MA. So straightforward. So simple. Three variables in perfectly-defined harmony. Given any two of them, the third is easy to nail down. "
It is obvious that this guy is trying to sound smart, while making no point whatsoever.
"So the hot rodders adage more air = more power is proven correct. Figure out a way to stuff more air into the cylinder at any given RPM and throttle setting, and you can burn more fuel. Since burning fuel is what makes power, more air truly does create more power"
Right, this is why ram air works.
The basis for his argument is this...
"Below about Mach 0.5 (or about half the speed of sound), air is considered incompressible."
This is untrue. Why do toy styrofoam airplanes fly? Why do golfers put backspin on the dimpled golf balls to get more distance? Because of a difference in air density. Golf balls and toy planes don't go faster than Mach 0.5, but somehow the air under them is denser (compressed) than the air above them, creating lift.