The IGL is the kind of basic science, like e=mc2, that's taught in high school. Or, it used to be, at least. OTOH, I was recently shocked to learn that ****ens is considered 8th-grade level reading now. ****ens was pretty standard in 6th grade when I was a kid.
Anyway, it's something that pretty much anyone with a science degree "knows", although people working in fields who seldom need to refer to it (e.g., "astrophysics") are probably a little rusty about using it. It's a basic tool, though, so people who design refrigeration systems, or maybe airliner cabins, would likely use it in their work more often and, thus, have more "expertise".
But the people who work with tires apply IGL principles every day, all day long, and implicitly understand the effect of temperature on the pressure of inflated objects. They would know almost immediately that Tyson's original calculation was incorrect. My own mechanic did, and he's not a Patriots fan.
