How A.I. Is Making Supermarkets Less Exhausting

Take AmazonGo, the A.I.-powered convenience mart that opened 10 locations in cities including Seattle and Chicago last year, with plans to evangelize New Yorkers next. Cutting errand time back considerably, the store offers "JustWalkOut" shopping for groceries and meals. How it works: Download the free app, scan a QR code at the entrance, grab items off the shelves and exit through the turnstiles. By the time you receive a receipt in the AmazonGo app, you're halfway to the car. At less intelligent stores, you might soon be able to grab a cart that lets you checkout and bag items without a wait.