Duncan Watts' research is challenging the theory that a small group of influential people are responsible for triggering trends as explained in Malcolm Gladwell's The Tipping Point.
"If society is ready to embrace a trend, almost anyone can start one--and if it isn't, then almost no one can," Watts concludes. To succeed with a new product, it's less a matter of finding the perfect hipster to infect and more a matter of gauging the public's mood. Sure, there'll always be a first mover in a trend. But since she generally stumbles into that role by chance, she is, in Watts's terminology, an "accidental Influential."
Perhaps the problem with viral marketing is that the disease metaphor is misleading. Watts thinks trends are more like forest fires: There are thousands a year, but only a few become roaring monsters. That's because in those rare situations, the landscape was ripe: sparse rain, dry woods, badly equipped fire departments. If these conditions exist, any old match will do. "And nobody," Watts says wryly, "will go around talking about the exceptional properties of the spark that started the fire."
I've previously covered some of what Clive talks about in the article.