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TIL 95 percent of Mongols are lactose intolerant yet eat a diet that consists heavily of dairy products

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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
7rvJM TIL That the Titanic had only about 2/3 of its maximum capacity of people when it sank and more than 1000 extra people could have died had it been at maximum capacity
Y49d TIL the Seinfeld theme song was re-recorded every episode to work perfectly with the opening monologue
8eEga TIL that the use of the name 'John Doe' as a placeholder / average name can be traced back to as early as the 1300s
YpPGW TIL: Grocery store shelves are rented by companies to put their products out. Eye level and the perimeter are the most expensive