---
title: "Discussion on \"I sampled a million coin flips with decaying probabilities. The 1909 dividing line showed up exactly where Borel said it would.\" | Hashnode"
description: "Discussion on \"I sampled a million coin flips with decaying probabilities. The 1909 dividing line showed up exactly where Borel said it would.\". In 1909 Émile Borel was working through a problem about decimal expansions of real numbers, and he proved a small lemma to dispatch a side case. Eight years later, Francesco Paolo Cantelli sharpened it. Together the two halves became one of the clean"
url: "https://hashnode.com/posts/i-sampled-a-million-coin-flips-with-decaying-probabilities-the-1909-dividing-line-showed-up-exactly-where-borel-said-it-would/6a025d662d1b69abf22b8219"
---

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# [I sampled a million coin flips with decaying probabilities. The 1909 dividing line showed up exactly where Borel said it would.](https://forgottentheorieshashnodedev.hashnode.dev/i-sampled-a-million-coin-flips-with-decaying-probabilities-the-1909-dividing-line-showed-up-exactly-where-borel-said-it-would?utm_source=hashnode&utm_medium=feed)

In 1909 Émile Borel was working through a problem about decimal expansions of real numbers, and he proved a small lemma to dispatch a side case. Eight years later, Francesco Paolo Cantelli sharpened it. Together the two halves became one of the clean

May 11 · 6 min read · forgottentheorieshashnodedev.hashnode.dev  
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