8 October 2016
When Benedict Paten stares at his computer monitor, he sometimes gazes at what looks like a map of the worst subway system in the world. The screen is sprinkled with little circles that look like stations. Some are joined by straight lines — sometimes a single path from one circle to the next, sometimes a burst of spokes radiating out in many directions. And sometimes the lines bend into sweeping curves that soar off on express routes to distant stations.
A rainbow palette of colors makes it a little easier to digest the complexity. But if you stare a little too long, vertigo sets in.
This map is not a guide to any city on Earth. It is a sketch of the human gene pool.