six degrees of separation

Some of you are probably familiar with a little game that was popular in the 1990's -The Six Degrees of Kevin Bacon. It was a fun parlor game where one player picks an actor or director or maybe even a hairdresser or whatever and then the other player tries to connect that person to Kevin Bacon...

This is something I've been thinking about a lot recently, it's the idea that everyone in the world is linked together through 5 other people. While this is probably a very rough estimate and obviously the degrees of separation between people may be vast, it's an interesting concept to think...