Since the 1960s, a group of researchers, including Donald Campbell and Dean Simonton, has been pursuing the idea that at a cultural level the process of developing new ideas looks a lot like the process of developing new species. The evolutionary process can be summed up in four words: “Blind variation, selective retention.” Blind variation is the process by which mutations and accidents change genetic code, and it’s blind because it’s chaotic—it’s variation that doesn’t know where it’s going. There’s no intent behind it, nowhere in particular that it’s headed—it’s just the random recombination of genes. Selective retention is the process by which some of the results of blind variation—the offspring—are “retained” while others perish. When problems become acute enough for enough people, the argument goes, the random recombination of ideas in millions of heads will tend to produce a solution. In fact, it’ll tend to produce the same solution in multiple different heads around the same time.