6 gradi di separazione, o giù di lì.Secondo alcuni dati: ci sono 7,4 miliardi di persone al mondo; questo significa 3,64 miliardi…
How small is the world, really?Last week’s finding by a team of data scientists at Facebook that everyone in the social network is connected by an average of 3.5 “intermediaries” has renewed interest in the longstanding “Six Degrees of Separation” hypothesis: that everyone in the world is connected by some short chain of…
