"It might not be all that surprising that the Internet affords different — closer? — relationships than those of the earliest 20th century Hungary. Indeed, according to Facebook’s data team, the connections it now affords are actually much closer than the “six degrees of separation” maxim. Between Facebook relationships, there are only 4.74 degrees (“hops” it calls them)."
There are less than six degrees between you and Kevin Bacon
(the Facebook post available here)