Math meme: e = Σ1/n! vs 2e = Σ(n+1)/n!, same number wildly different reactions

pickover · x · 2026-11-09

A math meme making the rounds: the calm face pairs with e = Σ 1/n!, while the shocked face pairs with 2e = Σ (n+1)/n! — the exact same constant, just rewritten by splitting and shifting the series terms. A classic joke about how notation alone can make an identical identity look mind-blowing.

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