Null Island appears in databases, map layers and fitness heat maps as one of the busiest places on Earth, yet at zero degrees latitude and zero degrees longitude there is only open Atlantic water in the Gulf of Guinea, roughly 600 kilometers off West Africa above a seabed nearly 5,000 meters deep. This episode explains the software mechanics behind the phantom: the difference between a NULL value and zero, how strict map rendering engines coerce missing coordinates into 0,0, and why billions of glitched data points wash up at the same spot.

The conversation covers how the Natural Earth dataset formalized Null Island around 2010 as a one-square-meter polygon with a scale rank that keeps it invisible, why developers cannot simply delete 0,0 data without losing real ships and tagged sharks, and the 2018 Bellingcat analysis of Strava heat maps  ...