Facebook’s 4.74 Degrees of Separation

The old adage that strangers are connected by “six degrees of separation” may need to be updated, suggests a recent study of 721 million active Facebook users. This modern version of Stanley Milgram’s so-called small world experiment found that the average number of acquaintances separating any two Facebook users is currently only 4.74. The study also finds that people’s interconnectedness over Facebook is growing. In 2008, the average Facebook user was 5.28 degrees away

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