David Yanofsky created a clever series of maps illustrating the average “destination” of international flights originating from a particular country. The average destination for U.S., for example, is somewhere in northeastern Quebec.
What’s more important in these maps than the destination—and what goes unsaid in Yanofsky’s article—are the length and direction of the vectors. I suspect they’re telling us something about real-world international relations. Not the diplomatic sort, but who everyday people are interacting with.