Number of degrees by which everyone in the world was thought to be separated, according to a famous 1967 study; hence the phrase, "six degrees of separation"
Number of degrees by which everyone in the world is actually separated, according to a new study of 721 million active Facebook users
THE WEEK'S AUDIOPHILE PODCASTS: LISTEN SMARTER
- Rise of the machines
- How to be the most productive person in your office — and still get home by 5:30 p.m.
- 3 horrific inaccuracies in Homeland's depiction of Islamabad
- Gamergate has backfired spectacularly on its nincompoop perpetrators
- 43 TV shows to watch in 2014
- The uncomfortable truth in The Giving Tree
- 6 things the happiest families all have in common
- It's time to kill school picture day
- The real story behind Deliver Us From Evil
- 10 things you need to know today: October 19, 2014
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