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TIL a genetic mutation can cause some people to have 4 cones that perceive color as opposed to the standard 3, which means they would be able to see 100 million colors while a normal person sees just 1 million.

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kVO5 TIL a Chinese beggar whose hands were ruined in an explosion spent a decade designing a new type of two-handed calligraphy. The result was so impressive that China’s largest font maker gave him a design contract with 50 years of royalties and helped to get him off the streets.
kJnb7 TIL Pamela Anderson declined to even read the letter from the actress portraying her (Lily James) asking for her blessing in the show Pam and Tommy
Ky09 TIL The slang term ‘Quid’ (for British pound sterling) which appeared in the late 16th century may have derived from the Latin phrase 'quid pro quo’ which loosely translates to 'this for that’
xVEZo TIL - The inventor of the USB had originally intended for it to be flippable, however that idea was scrapped due to the extra cost. Despite USB becoming the standard, he still regrets that decision. "In hindsight, we blew it," he said.
PNeL TIL During the OJ Simpson verdict, long distance call volume fell by 58%, stock trading fell by 41%, and water use declined as people avoided going to the bathroom