Groupthink: The Brainstorming Myth - The New Yorker →
Interesting claims about brainstorming:
The first empirical test of Osborn’s brainstorming technique was performed at Yale University, in 1958. Forty-eight male undergraduates were divided into twelve groups and given a series of creative puzzles. The groups were instructed to follow Osborn’s guidelines. As a control sample, the scientists gave the same puzzles to forty-eight students working by themselves. The results were a sobering refutation of Osborn. The solo students came up with roughly twice as many solutions as the brainstorming groups, and a panel of judges deemed their solutions more “feasible” and “effective.”
… and about unplanned meetings being the most efficient ones:
“At first, I thought this was the most ridiculous idea,” Darla Anderson, a producer on several Pixar films, told me. “I didn’t want to have to walk all the way to the atrium every time I needed to do something. That’s just a waste of time. But Steve said, ‘Everybody has to run into each other.’ He really believed that the best meetings happened by accident, in the hallway or parking lot. And you know what? He was right. I get more done having a cup of coffee and striking up a conversation or walking to the bathroom and running into unexpected people than I do sitting at my desk.”
I can only agree, and note that many of my most efficient colleagues seem to use unplanned meetings quite systematically (although I’m not sure they are aware of it themselves).