I Still Don't Understand What The Professor Means

The existential crisis of calculus students everywhere! That moment when 'dx' isn't just part of a fraction but some mystical mathematical entity floating around by itself! It's like being told your whole life that unicorns aren't real and then suddenly your professor starts riding one to class. 🧮✨

For the uninitiated, 'dx' represents an infinitesimally small change in x - it's both nothing and something simultaneously, like Schrödinger's variable! First it's just notation, then BAM! It's dancing around integrals like it owns the place. No wonder calculus makes perfectly sane students question reality!