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On Facebook, users average a separation of only 3.74 people!


Updating the theory thought by Frigyes Karinthy and popularized by the “6 degrees from Kevin Bacon theory,” that there is a separation of 6 degrees between any two people in the world, Facebook data scientist Lars Backstrom discovered the separation is almost half as small!


After scanning through Facebook's 721 million users and excluding celebrity/miscellaneous fan pages, Backstrom was able to come up with 3.74 people. 99.6% of all random user pairs were connected by 5 people while 92% were connected by 4 people. To read more on the math of separation, click the source below!


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