Happily for those who have never lived abroad, this creativity boost can also happen for people who live in unusual frames of mind, rather than exotic locales. In a small study, Rodica Damian, an assistant psychology professor at the University of Houston, and her colleagues had college students engage in a virtual-reality exercise in which the laws of physics didn't apply. In this virtual world, things fell up instead of down. When compared with another group that performed an exercise in which the laws of physics functioned normally, those who had the physics-warping experience were able to come up with more creative answers to the question "What makes sound?"

Chris Crandall, a psychology professor at the University of Kansas, told me that people who are on the periphery of society tend to be freer to innovate and change social norms. "Fashion norms come from the bottom up," he said. Outsiders are less concerned with what the in-crowd thinks of them, s...