Unfold it on your lap, give directions to the driver, get lost, get into an argument. Repeat. Reading maps used to be a familiar way for us humans to get an often unnerving handle on our environment. To be fair, the game has constantly improved: from carrying a thick road atlas to printing turn-by-turn directions to the first simple arrow appearing in a car’s head unit to today’s always-on maps that tap into and tie together myriad online data sources.