The most critical aspect of pi is never taught or mentioned. And that is the fact of how strictly conditional pi is. The C/D ratio of 3.14 is only valid if the rotation is 2D. Physical entities, whether mass or field, are 3D. Physical entity rotations, such as orbits or particle rotations are non-pi rotations.
Pi has helped keep us ignorant for 100 years. Giving us false velocity and momentum measurements. And leading to false dynamics. This is why we can't stir plasma in a pot. Modern science can not quantify or describe the flow of plasma, mathematically.
Time and length are not variables, but the C/D ratio is.