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TIL the saying "Perfect is the enemy of good" means to go with what works well rather than trying for perfection. Sir Watson-Watt who developed radar in WW2 Britain had a “cult of the imperfect” saying "Give them the third best to go with; the second best comes too late, the best never comes.”

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v1mR8 TIL of Forrest Bird, the creator of some of the first reliable mass-produced mechanical ventilators. He sold his first units to the army, and they were made of strawberry shortcake tins and door knobs.
P14VG TIL that my favorite Halloween song, "Thriller," was written by an Englishman named Rod Temperton. The list of popular songs that he wrote blew me away. I really enjoyed listening to all of those songs on the radio when I was growing up and I'd never heard his name. "The Invisible Man" indeed!
O4Yg TIL of Mr Walter Tull. A soldier who was born in 1888 and died in 1918. He was the first ever black officer to lead white British soldiers in battle. He also played soccer for the professional London Club Tottenham Hotspur.
ep4jg TIL there is a population of 100+ wild Hippos in Colombia, first introduced by druglord Pablo Escobar for his private zoo
dox7 TIL McD’s founder Ray Croc and Walt Disney both lied about their age to serve in WWI and served in the same ambulance.