Some crystal formations maybe.

Tree trunks with respect to the horizon.

Excellent question. And yet another reason for sick building syndrome ;)

A male erection?

angle of dangle = heat of meat?

Yes. Nature creates economists who are congenitally incapable of taking chalk to blackboard and drawing anything other than a right angle (an X/Y axis).

At least that is what they must do first in order to continue breathing. After that, they then proceed to mark up their neat right angle with a lot of chicken-scratch gibberish demonstrating how supply and demand interact.

Do economists major in Gibberish?

That seems to be all we ever get from them.

Even their explanations of "what went wrong" are fraught with undeciferable nonsense. Or maybe they major in nonsense.