April 3rd, 2008
There are lots of people trying to make sense of social networks for a number of reasons: monetization, information collection, spotting trend data and surveys just to name a few!
My take is that it’s actually a process of going back in time to the really old days and combining observed behaviour from society then with some theories on human evolution. A bit of such consideration can clarify the phenomenal success of social networks, the roots and successes of user engagement in general on the Internet and point to the future, not just to the web, but of human behaviour.
I’ve been looking at a few areas: language, culture, environmental factors and demographic context, but in this post I’ll concentrate on group size and cognitive constraints and some interesting articles I’ve found (well I think they are interesting anyway!).
Most of you would have heard of the Dunbar number which is given to the number that Robin Dunbar proposed; being the “limit imposed by neocortical processing capacity is simply on the number of individuals with whom a stable inter-personal relationship can be maintained”. This limit has been researched as being an amazingly round 150. Beyond 150 and the human brain must resort to other non empathic methods to understand people such as stereotyping, heirarchies and so on. In fact, it turns out that even sustaining 150 relationships is quite remarkable in evolutionary terms. Sociality needs a bigger brain and bigger brains in evolutionary terms are expensive. Brain size is constrained by metabolic cost, and 20% of our metabolic rate is used up simply keeping our brains going which compares with about 8% for chimps! For most species this is simply not worth it and it’s better being a bit less intelligent but more focused. Us humans obviously have not taken this approach, but there still seems to be a limit on number of relationships that can be maintained properly.
Prosociality is another interesting factor that humans exhibit i.e they cooperate. The puzzle here is how humans sustain cooperation between large numbers of individuals. Cooperation requires a degree of altruism, which benefit the group but are often personally costly. (The Puzzle of Prosociality)
Social exchange and determination of cheats within a group is also quite an interesting area. Experiments have been done to determine how we humans discriminate the differences between cheating and simple rule-breaking (Professor Leda Cosmides). Experiments show that only 25% of people can manage the logical reasoning which would enable them to detect rule-breakers. However 75% detect correctly when it comes to cheating in social exchanges in which the logic is the same. So humans must have specialised and highly tuned social and emotional mechanisms for detecting cheats in comparison with logical mechanisms!
So considering these different areas, it seems to me that social networks provide a means for humans to exceed the Dunbar number and manage relationships without resorting to non empathic methods we use to understand people such as stereotyping or forming hierarchies.
Social networks assist us in managing more relationships by:
1. Aggregating news about your friends into bite size chunks, saving us from spending brain energy from trying to get information about an increasingly large friend base.
2. The provision of “bite size” communication and emotional assistance e.g. pokes, newsfeed and applications attached to various emotional states and contexts (in contrast to the non-emotional paradigm exhibited by email for example).
3. Social networks provide assistance and transparency which induces cooperation rather than individual behavior.
4. Helping us with our finely tuned empathic cheat detection systems by being able to assist in identifying fraudsters outside a face-to-face environment. My hypothesis here is that our cheat detection systems fall apart when confronted by distance and volume (of people), and then our logical brain kicks in which has already been proved to be pretty bad in comparison.
Social networking, as far as our cunning genes are thinking, is actually allowing us to break through certain evolutionary limits, by providing assisted communications with social context and emotion, and points to the continuation and acceleration of the social web. It’s also important to note that the web itself is just an evolution in communication support, again driven by this need as humans to be social, and this will continue to be one of the driving forces behind our evolution and social change.
So, social networking could finally be the death of the horrible publishing and broadcast metaphor that people still apply to the web, and maybe the start of a “relationship focus” breakthrough with how we build “websites” and web apps - the social web. After all, we can’t fight our genes, and they want us to have lots of friends!
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