Sorry, your limit is 150
Have you heard about Dunbar’s number – the theory that your brain can only manage “stable social relationships” with 150 people?
Robin Dunbar, a professor* at Oxford University, developed this theory in the 1990s. He theorizes that the size of our neocortex limits us to managing social circles of about 150 friends – that’s 150 friends that you contact each year and can remember how they relate to each other.
Of course, the study was in the news this week in relationship to Facebook. There are many articles out there saying even though we amass hundreds of friends on Facebook, our brains are only capable of managing that core 150. Dunbar is revisiting his study to see how it relates to Facebook. From the UK Times article:
Dunbar is now studying social networking websites to see if the “Facebook effect” has stretched the size of social groupings. Preliminary results suggest it has not.
“The interesting thing is that you can have 1,500 friends but when you actually look at traffic on sites, you see people maintain the same inner circle of around 150 people that we observe in the real world,” said Dunbar.
“People obviously like the kudos of having hundreds of friends but the reality is that they’re unlikely to be bigger than anyone else’s.
“There is a big sex difference though… girls are much better at maintaining relationships just by talking to each other. Boys need to do physical stuff together.”
So, what do you think of his theory? How many friends do you have on Facebook? Do you know who they all are and keep in touch with them all? Do you think you stick to the core 150? Do you think he is right about the “sex difference”?
I have 112 friends on Facebook. I try to keep it limited. And I still don’t keep in touch with about 25% of my “friends.” The thing is, it doesn’t matter if you don’t keep in touch with people on Facebook. I don’t think that’s the point! It’s more for “networking.” They are not relationships you absolutely have to maintain.
I suppose I am just naive in hoping that some relationships are not ONLY maintained on Facebook.
After reading these articles, I really started to think about how the 150 rule may relate to reading blogs. I mean, how many blogs can you really keep track of? I subscribe to about 350 (and believe me, that number is WAY down!) but can only keep straight the ones I keep in my “daily read” folders, which is probably close to 150 or 200. To me, it just means so much more to read a blog and feel like you know who the person is, even if you don’t have a real life relationship with them. So, one more set of questions:
Do you think the 150 relationships theory could apply to reading blogs? How many blogs do you keep track of?** Do you think you could manage more than 150?
*Of Evolutionary Antrhopology
**As always, my apologies for the prepositions.





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