Thinking in groups, thinking alone

Where do good ideas come from? A recent issue of the New Yorker offers up a few answers, in a fascinating article on the science of groupthink by Jonah Lehrer, who debunks some widely cherished notions about creative collaboration. Lehrer suggests that brainstorming—narrowly defined as a group activity in which a roomful of people generates as many ideas as possible without pausing to evaluate or criticize—is essentially useless, or at least less effective than spirited group debate or working alone. The best kind of collaboration, he says, occurs when people from diverse backgrounds are thrown together in an environment where they can argue, share ideas, or simply meet by chance, and he backs this up with an impressive array of data, ranging from studies of the genesis of Broadway musicals to the legendary Building 20 at MIT, where individuals as different as Amar Bose and Noam Chomsky thrived in an environment in which the walls between disciplines could literally be torn down.

What I love about Lehrer’s article is that its vision of productive group thinking isn’t that far removed from my sense of what writers and other creative artists need to do on their own. The idea of subjecting the ideas in brainstorming sessions to a rigorous winnowing process has close parallels to Dean Simonton’s Darwinian model of creativity: quality, he notes, is a probabilistic function of quantity, so the more ideas you have, the better—but only if they’re subjected to the discipline of natural selection. This selection can occur in the writer’s mind, in a group, or in the larger marketplace, but the crucial thing is that it take place at all. Free association or productivity isn’t enough without that extra step of revision, or rendering, which in most cases requires a strong external point of view. Hence the importance of outside readers and editors to every writer, no matter how successful.

The premise that creativity flowers most readily from interactions between people from different backgrounds has parallels in one’s inner life as well. In The Act of Creation, Arthur Koestler concludes that bisociation, or the intersection of two unrelated areas of knowledge in unexpected ways, is the ultimate source of creativity. On the highest plane, the most profound innovations in science and the arts often occur when an individual of genius changes fields. On a more personal level, nearly every good story idea I’ve ever had came from the juxtaposition of two previously unrelated concepts, either done on purpose—as in my focused daydreaming with science magazines, which led to stories like “Kawataro,” “The Boneless One,” and “Ernesto”—or by accident. Even accidents, however, can benefit from careful planning, as in the design of the Pixar campus, as conceived by Steve Jobs, in which members of different departments have no choice but to cross paths on their way to the bathroom or cafeteria.

Every creative artist needs to find ways of maximizing this sort of serendipity in his or her own life. My favorite personal example is my own home library: partially out of laziness, my bookshelves have always been a wild jumble of volumes in no particular order, an arrangement that sometimes makes it hard to find a specific book when I need it, but also leads to serendipitous arrangements of ideas. I’ll often be looking for one book when another catches my eye, even if I haven’t read it in years, which takes me, in turn, in unexpected directions. Even more relevant to Lehrer’s article is the importance of talking to people from different fields: writers benefit enormously from working around people who aren’t writers, which is why college tends to be a more creatively fertile period than graduate school. “It is the human friction,” Lehrer concludes, “that makes the sparks.” And we should all arrange our lives accordingly.