Flags of Mathematical Nations: Tesseractia
Tesseractia's flag keeps vanishing and reappearing as it flutters in the four-dimensional wind.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-02-22-flags-of-mathematical-nations--flags-of-mathematical-nations-tesseractia/ (CC BY-NC 4.0)Transcript
The Hyper-Republic of Tesseractia [a tesseract flag] "Why does your flag keep vanishing and reappearing?" "Oh, it's just fluttering in the four-dimensional wind."