Gulfstream

http://www.nature.com/nsu/030804/030804-10.html Milgram’s “Six Degrees of Separation” experiment replicated with email: “Of more than 24,000 chains started, only 384 found their target. Successful chains were, on average, about four steps long, although this number was biased by the greater likelihood of shorter chains being completed. A typical chain length was indeed between five and seven, consistent with Milgram’s earlier findings.” 12:36