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TIL The song "Runaway Train" by Soul Asylum increased the awareness of runaway minors, resulting in 26 missing person cases mentioned in the music video to be closed as of right now.

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jNnJM TIL of the sunk cost fallacy. It is the general tendency for people to continue an endeavor, or continue consuming or pursuing an option, if they’ve invested time or money or some resource in it, which becomes a fallacy if it’s pushing you to do things that are making you unhappy or worse off.
jNaOn TIL that some Inuit groups used ridicule in the form of song duels as a means of conflict resolution. Two men who had failed to resolve a conflict by other means would secretly compose derisive songs about their adversary. The whole camp gathered in a large igloo to observe the song duel.
wgko TIL that as of April 2010, Bill Gates had donated over $36,854,000,000 in his lifetime, which is more than half of his current net worth of $61 billion.
l7KdK TIL that some people can voluntarily contract their tensor veli palatini—a muscle near the ear and throat—which opens the eustachian tube (normally closed), making a clicking sound (same as when you swallow or yawn) which equalizes the pressure in the middle ear. This is useful for freedivers.
rNOj0 TIL The feeling of falling while you're asleep happens because your muscles become very relaxed and enter into temporary paralysis. The brain misinterprets this as falling and sends signals to your muscles to jerk upright which leads you to startle awake.