6 Degrees of Facebook Separation? Try 4 | News & Opinion | PCMag.com
Approximately 99.6 percent of any given pair of Facebook users can be connected via five degrees (or six hops, as Facebook put it), but 92 percent can be linked via four degrees, or five hops, Facebook said. "And as Facebook has grown over the years, representing an ever larger fraction of the global population, it has become steadily more connected. The average distance in 2008 was 5.28 hops, while now it is 4.74," the team found.