Dirac called renormalization 'sensible math' — turns out rigor cost billions and 1,150 pages
alexbilz · x · 2026-11-04
Quoting Dirac's 1975 jab at renormalization — "sensible mathematics involves neglecting a quantity when it turns out to be small, not because it's infinitely great and you don't want it" — martinmbauer jokes about what Dirac would say knowing establishing renormalization as mathematically rigorous took a few billion dollars and a 1,150-page proof.
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