Slashdot Mirror
Human Brain Places Limit On Twitter Friends
Hugh Pickens writes "Back in early '90s, British anthropologist Robin Dunbar began studying human social groups, measuring the number of people an individual can maintain regular contact with, and came up with 150 — a number that appears to be constant throughout human history — from the size of neolithic villages to military units to 20th century contact books. But in the last decade, social networking technology has had a profound influence on the way people connect, vastly increasing the ease with which we can communicate with and follow others, so it's not uncommon for tweeters to follow and be followed by thousands of others. Now Bruno Goncalves has studied the network of links created by three million Twitter users over four years. After counting tweets that are mutual and regular as signifying a significant social bond, he found that when people start tweeting, their number of friends increases to a saturation point until they become overwhelmed. Beyond that saturation point, the conversations with less important contacts start to become less frequent and the tweeters begin to concentrate on the people they have the strongest links with. So what is the saturation point? The answer is between 100 and 200, just as Dunbar predicts. 'This finding suggests that even though modern social networks help us to log all the people with whom we meet and interact,' says Goncalves, 'they are unable to overcome the biological and physical constraints that limit stable social relations (PDF).'"
What's interesting is how this affects other interactions. For a modern example, imagine a World of warcraft player with an active player group of say 40 people. If the brain has a hardwired limit of 150, then that dos not leave much room for "real" social interaction.
Such a person might not be antisocial per-se they just might have hit a stack overflow.
The Dunbar hypothesis isn't a limit on group size. It argues that an individual can maintain only some 100-200 regular social contacts. Yet if, as the article suggests, a Twitter user stabilizes at a maximum of 150-200 regularly-maintained contacts, they're using up most, if not all, of their Dunbar-space on Twitter alone. So does this mean that people with 150-200 regular Twitter contacts must lose their pre-Twitter real-world regular contacts, or that their pre-Twitter contacts must become Twitter contacts? That seems a bit much to assume without evidence.
I suppose further research will explore how the real-world-and-non-Twitter social life of the twitterati changes as they near their Dunbar limit on Twitter. Perhaps, as the article boldly suggests, "social networks [do] not change human social capabilities" (Conclusions, 7) and the Dunbar limit is indeed resistant to technological circumvention. But this article doesn't make that clear. By not examining the full social space of its subjects, the study does not actually address the possibility that Twitter has increased the number of regular contacts - of all types - that an individual can maintain.
You count your postman and butcher and 50 people at work that significantly? If they count against that number, then it seems you're probably investing FAR too much in these people who are essentially on the fringe of your life.
As for Twitter... nobody on there should count toward anything. Twiter is about whoring yourself out just like all the other social networks. It's about spreading yourself around to boost your ego (or your business). It's not about listening or having a bi-directional friendship.