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TIL Einstein proved that past events are not knowable with certainty [PDF]

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M7Eom TIL that, before the Space Shuttle Challenger exploded, NASA management genuinely believed that the chances of a catastrophic failure to the Space Shuttle was 1 in 100,000. By the time the Space Shuttles were retired, they had a catastrophic failure rate of 1 in 67.5
GP5Q TIL Most of Sony’s total global revenue comes from selling life insurance in Japan
0deAL TIL The Flintstones was the most financially successful and longest-running network animated television series for three decades, until The Simpsons surpassed it in 1997.
5YBaR TIL The trivia (singular trivium) are three lower Artes Liberales: grammar, logic, and rhetoric. These were the topics of basic education, foundational to the quadrivia of higher education, and hence the material of basic education and an important building block for all undergraduates.
J0J4 TIL that David II, King of the Scots was four years old when he married Joan of the Tower, King Edward II of England’s daughter, who was seven