Literally hours ago I was looking through Google Maps documentation for a way to plot a route with waypoints that I needed in a specific order (I'm plotting shipment updates in the order they occur, which may not be in the most efficient path order). I saw that there is a flag to optimize waypoints, which Google described as an implementation of the traveling salesman problem. A few hours later I just happened to see this article on HN. This seems to happen to me on HN too often to be coincidence. Has anyone else noticed this phenomenon?