The Wisdom of Crowds - Not?

Great book. But people in a room together ... not so great. According to new research:

"Time and again research has shown that people think of more new ideas on their own than they do in a group. The false belief that people are more creative in groups has been dubbed by psychologists the "illusion of group productivity." But why does this illusion persist?

Bernard Nijstad and colleagues at the University of Amsterdam argue it's because when we're in a group, other people are talking, the pressure isn't always on us and so we're less aware of all the times that we fail to think of a new idea. By contrast, when we're working alone and we can't think of anything, there's no avoiding the fact that we're failing...

The researchers said "We suggest that working in a group may lead to a sense of continuous activity. This may provide group members with the idea that they are productive, because they feel that the group as a whole is making progress, even if they themselves are not contributing."

Is this the un-wisdom of crowds? Is there a bestselling book in here somewhere?

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H/t: Marginal Revolution