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TIL that hand and arm transplants are a thing in lieu of prosthetics

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oBd8E TIL Of the pareto principle also known as the 80/20 rule. Which states that for many events, roughly 80% of the effects come from 20% of the causes. ex. Microsoft has noted that by fixing the top 20% of the most-reported bugs, 80% of the related errors in a given system would be eliminated.
odO7 TIL that, in 1948, a psychologist gave a group of his students a test that he said could summarise their personalities. Upon receiving their summaries one week later, the students gave them an average accuracy score of 85.2%. In reality, the students had all received the exact same summary.
KYG5E TIL New Zealand isn't depicted on many world maps (including ones used in NZ itself)
awAGZ TIL about the Norwegian Lundehund, one of the world's rarest and oldest dog breeds, which has six toes, extremely flexible joints and was bred specifically to fetch puffin eggs.
wxGY TIL The First 3D-Printed Drug Has Been Approved in the US