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TIL That even if a drugtest is 99% sensitive and 99% specific despite the apparent accuracy of the test, if an individual tests positive, it is more likely that they do not use the drug than that they do.

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MeAN7 TIL Leonardo Da Vinci's Salvator Mundi was sold at a New Orleans art gallery for $10,000 in 2005 and ended up selling for $450,000,000 in 2017. It's the most expensive painting ever sold.
78o1x TIL: In many languages, the colors described in English as "blue" and "green" are expressed using a single term
yVlx8 TIL the net worth of Saudi Arabia's royal family, estimated at $1.4 trillion, is approximately 16 times greater than that of the British royal family, which has a net worth of $88 billion.
M7RaB TIL when Queen Margrethe II of Denmark abdicates on Jan 14, it will be the first time Europe hasn't had a Queen Regent since 1833
LQpQv TIL Doctors can't own hospitals. Wtf why?