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TIL: Facebook made about $90 per user in the US and Canada last year

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wK4o TIL despite sharing the same oral language, British, Irish, Australian and American sign language are all completely different languages.
6EpVw TIL Gray goo is a hypothetical global catastrophic scenario involving molecular nanotechnology in which out-of-control self-replicating machines consume all biomass on Earth while building more of themselves
W7eJo TIL after the attack on Pearl Harbor, three sailors were trapped underwater for 16 days before succumbing.
N7pY8 TIL in the South Korean town of Daesong-dong, residents are exempt from taxes and the mandatory military service in an effort by the government to keep people there despite being only 350m from the N Korean border. However, for security reasons, there is a curfew and headcount at 11pm every night.
Eykw TIL Coca Cola once had a water brand, Dasani, which they claimed was “as pure as bottled water gets”. It ended up being tap water.