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Mathematics

Bayes' Theorem and Updating Beliefs

Quick fact

Bayes' theorem was discovered by Thomas Bayes in the 18th century, but only published posthumously. Today, it's a cornerstone of modern machine learning and artificial intelligence.

Why this is interesting

Have you ever updated your opinion about someone after a surprising event? Bayes' theorem is the mathematical heart of that intuitive process, and it powers everything from spam filters to medical diagnoses.