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TIL it would take about 3000 years to send a message and hear a reply if SETI discovered intelligent life at KIC 8462852.

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d57 TIL that Judge Doom’s freeway idea in “Who Framed Roger Rabbit” was a reference to a real conspiracy in which General Motors bought up trolley car companies in order to replace them with buses.
neWn7 The most popular artificial material on Earth isn’t steel, plastic, or aluminum — it’s concrete. Thousands of years ago, we used it to build civilizations, but then our knowledge of how to make it was lost. Here’s how we discovered concrete, forgot it, and then finally cracked the mystery of what makes it so strong.
XAAj TIL when 3 people tried to sell Coca Cola secrets to Pepsi, Pepsi informed Coke and the FBI.
m1LDR TIL A 46,000-year-old worm found in Siberian permafrost was brought back to life.
oPJK TIL John Lithgow played the William Shatner role in the Twilight Zone remake of “Nightmare at 20,000 feet.” Years later when Shatner appears on 3rd Rock from the sun he says “It was a horrible flight! There was a man on the wing of the plane!”; Lithgow responds, “The same thing happened to me!”