Sean Gorman proposes a corollary to Waldo Tobler’s well-known First Law of Geography (“everything is related to everything else, but near things are more related than distant things”). Inspired by developments in mobile applications, he adds a temporal element: things that are near for a long period of time are more related than things that are near for a short period of time. This is interesting, but probably less universally applicable.

Previously: Waldo Tobler.