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		NotYourLawyer on Feb 17, 2024 \| parent \| context \| favorite \| on: The seventh most popular easily understood unsolve... As one example, number theory was considered pure math with no real-world applications for a long time. But then cryptography became a thing…

eru on Feb 17, 2024 [–]

Cryptography and coding theory.

Cryptography and coding theory and compression are three sides of the same (generalised) coin. Claude Shannon dabbled in all of them.

See eg https://www.dpmms.cam.ac.uk/~twk/Shan.pdf

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