Math Pessimism, Edited: Carry the One
Forgetting to carry the one is edited into proof of mastery: you noticed.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2016-02-03-math-pessimism-edited-carry-the-one/ (CC BY-NC 4.0)Transcript
[Before] "I forgot to carry the one! I'm such an idiot."
[After] "I ^have mastered arithmetic operations to the extent that if I forgot to carry the one, I immediately recognize the oversight; I'm such a ~~n idiot~~ pro."