The "Kevin Bacon" stuff was about degrees of separation (Does the expression "Six degrees of separation" ring a bell ?).
Not long ago, Facebook made that 4.74 degrees of separation on its networks. Meaning a maximum of only 4.74 persons are necessary to connect any two random persons on the network.
Not long ago, Facebook made that 4.74 degrees of separation on its networks. Meaning a maximum of only 4.74 persons are necessary to connect any two random persons on the network.
https://www.facebook.com/notes/facebook-data-team/anatomy-of...
You can also find an article on Wikipedia about the "Kevin Bacon" reference.