Path integrals Memes

The top panel shows "Path integrals in quantum mechanics" with "Prerequisite: none" looking deceptively simple, with a relaxed, carefree expression. Then BAM! The bottom panel hits you with the Campbell-Baker-Hausdorff formula and a flurry of exponentials, integrals, and momentum states that would make Feynman himself do a double-take. It's that moment when you realize you've been catfished by a textbook. The chapter title said "no prerequisites" but suddenly you need three PhDs and a time machine to understand what's happening. Classic physics textbook betrayal in its natural habitat!