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The tiny bugs are marketed as a quick fix, but the body of evidence is miniscule.

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bO47 TIL a Philadelphia man on a business trip to Boston noticed paper curling out from behind his office blinds. He flipped the blinds and saw a giant photo of his identical twin brother staring back at him. His twin had worked in the same office in the same building years earlier.
nZxb TIL Pope Innocent waged a massacre against the Cathars, when asked how to tell Cathars from Catholics the papal legates reply was “Kill them all, the Lord will recognise His own”.
nWvB TIL it may be possible to colonize the three farthest gas giants with floating cities in their atmospheres.
MeyWW TIL in 1987 Ruthie Mae McCoy was murdered by assailants hiding in her apartment walls that crawled out of her bathroom mirror cabinet.
vPXeB TIL of Helen, a Macaque monkey who was instrumental in the study of a condition in humans known as blindsight. Helen's primary visual cortex was removed, effectively blinding her. However, she blinked at motions that threatened her eyes and could navigate through environments as if she could see.