Luca Perugini » dunbar http://www.lucaperugini.it My digital life, my real work Sat, 04 Feb 2012 13:43:27 +0000 en hourly 1 How many friends on your SN do you really know? http://www.lucaperugini.it/2010/03/17/how-many-friends-on-your-sn-do-you-really-know/ http://www.lucaperugini.it/2010/03/17/how-many-friends-on-your-sn-do-you-really-know/#comments Wed, 17 Mar 2010 11:40:29 +0000 luca http://www.lucaperugini.it/?p=311 You have hundred or thousand friends on your SN, do you really know them?
Do you really need them?

Watch this video of Robin Dunbar and you’ll find, maybe, the answer.

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