I wish I could show this to my father-in-law, but he’s in his 80s, speaks little English, and it would take a long time to even get the meme history built up with him to actually follow the humor. If I could get him to understand the humor, though, he’d probably love it; he taught this for decades at a university.
"Joke" isn't complete without some shear diagrams too.
The "without eigenvectors" being uttered by lunatics is exactly how I felt about some of my professors, so maybe this joke is a little too realistic. 😅