https://www.cameronmoll.com/journal/abraham-wald-red-bullet-holes-origin-story (opens in new tab)

Covers TIL during WWII statistician Abraham Wald realized that bullet holes on returning aircraft showed where planes could survive damage, so he recommended reinforci...

Let's set the record straight: if you've seen this image a bunch of times you have me to blame. Here's the backstory.

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