Self-Reference: Frying Brains Since 1901
A character short-circuits over the liar sentence, under a slogan dating self-reference's brain-frying to 1901 (Russell's paradox).
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2016-01-01-self-reference-frying-brains-since-1901/ (CC BY-NC 4.0)Transcript
[Sign] "This sentence is false." A (sweating): "but if it's true… then it's false…"
[Caption] "Self-reference: Frying Brains Since 1901."