This is a little bonkers. Out of the 7.5 billion people living on the planet, give or take a few hundred million, 2 billion visit Facebook at least once a month. On a conservative estimate, that's 1 out of any 4 people alive right now... any 4 humans, be it newborns, kids, teenagers, adults, elderly people, those without internet access, those in war-torn countries, those sick and unconscious, those living in the hidden nooks and crannies of our planet... literally one out of any four persons.

Mark Zuckerberg announced the news on his Facebook feed and it was later followed up by a post on the official Newsroom blog with more stats and a couple of new things.

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