Coffee and convexity: a researcher explains Jensen's inequality and why it always bites
aminkarbasi · x · 2026-11-12
Researcher aminkarbasi explains Jensen's inequality with coffee: if health penalty scales with the square of intake, alternating between 0 and 10 cups is worse than a steady 5 daily. Foundational to statistics, optimization and information theory, it "always goes the wrong way" in his research. Includes a linked explainer video.
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