The above BBC documentary examines the urban myth that everyone on earth is connected to everyone else in just a few steps of association. However, this is no myth. The proof comes from network theory, a new science with implications for everything from cancer research to pandemic control.
Sadly, the BBC’s experiment went pear shaped. Forty envelopes were given to people around the world with the instruction they had to pass it to someone they knew by their first name to someone (etc) who knew the addressee. However, only three packets made it.