[–] mratsim 6y ago ↗ 3.5% of the population needed apparently (Academic study):- https://www.bbc.com/future/article/20190513-it-only-takes-35...
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[ 0.22 ms ] story [ 13.1 ms ] thread- https://www.bbc.com/future/article/20190513-it-only-takes-35...