Let’s give them something to talk about

Is it true that all you need is a handful of influential people to get a good buzz going about your idea, a la Malcolm Gladwell?

Social network theorists wanted to know.

Duncan J. Watts of Columbia University and Peter Sheridan Dodds of the University of Vermont in Burlington put the notion to the test. The results are extremely interesting:

More important than the influencers, the researchers found, were the influenced. Once an idea spread to a critical mass of easily influenced individuals, it took hold and continued to spread to other easily influenced individuals. In some networks, it was far easier to get an idea established this way than in others. The entire structure of the network mattered, not just the few influential people.

Dodds compares the spread of ideas to the spread of a forest fire. When a fire turns into a conflagration, no one says that it was because the spark that began it was so potent. “If it had been raining,” Dodds says, “that same match wouldn’t have had an effect.” Instead, a fire takes off because of the properties of the larger forest environment: the dryness, the density, the wind, the temperature.

The upshot of the study, Dodds says, is that “in the end, you don’t have control over how people spread your message.” The best way to increase the odds of person-to-person transmission of an idea is to make it a good idea and to give it “social worth,” he says. “Some things are just fun to talk about.”

Read the article at Science News.

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