Andy Bromberg: The wisdom of crowds is giving way to the “wisdom of communities.” In a world of ever-greater complexity, no one person can possibly make sense of all the signals and all the noise — from a single, static vantage point. A networked group is required to adapt to this new world... People are no longer being polled in isolation but... See more
The size of the effect is astounding. Cross-class friendships are a better predictor of upward mobility than school quality, job availability, community cohesion or family structure. If these results are true, then we have largely ignored a powerful way to help people realise the American dream.