>“We tend to think that there are lots of contextual aspects that affect the way we move, such as the transportation system, the morphology of a given place, an

>“We tend to think that there are lots of contextual aspects that affect the way we move, such as the transportation system, the morphology of a given place, and socioeconomic aspects. This is true to some extent, but what this shows is that there are some robust laws that apply everywhere.” I'm no computational social scientist, but this analysis doesn't make sense. In fact it would seem to me that if the study took those variables into account the model would become more predictive. It's idealizing the analysis.