Meme of two women fighting while a man smokes from a pipe in the background.
The women fighting are labeled “mathematicians defining pi” and “engineers just using 3 because it’s within tolerance”
The man smoking is labeled “astrophysicists” and the pipe is labeled “pi = 1”
Also how you get classical physics from relativity.
And you only see the error in classical physics is the very fast orbit of mercury or the precision of GPS satellites