six degrees of separation

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six degrees of separation

A term referring to the observation that any person on Earth is, on average, six “steps” away from knowing any other person, such that a chain of "a friend of a friend" statements can be made to connect any two people in no more than 6 steps. This social and mathematical conundrum was formulated in the mid-1960s, and characterises the interwoven webs of acquaintances among friends, neighbours, colleagues and relatives.
References in periodicals archive ?
6 DEGREES OF SEPARATION BBC2, 10.00pm Hosted by Professor Brian Cox (below), with the help of Hugh Dennis and Ben Miller, this panel show sees scientists competing to find the connections between six unlikely objects.
CHOICE Professor Brian Cox 6 Degrees of Separation BBC2, 10pm Not content with giving our brains a Monday night work out with the double bill of University Challenge and Only Connect, BBC Two is now bringing us a new panel show so mentally stimulating, it threatens to make QI look like Celebrity Juice.
6 Degrees of Separation exploits that old idea that everyone or everything on the planet is six or fewer steps away from any other person.