Interesting Snippets

Looking at the network of US cities, it’s been remarkable to see how groups of them form clusters, with strong connections locally but few contacts outside the cluster. For example Columbus, OH and Charleston WV are nearby as the crow flies, but share few connections, with Columbus clearly part of the North, and Charleston tied to the South: Columbus Charleston Some of these clusters are intuitive, like the old south, but there’s some surprises too, like Missouri, Louisiana and Arkansas having closer ties to Texas than Georgia.