Amazon just launched a cashier-free convenience store

Amazon just unveiled a grocery store without lines or checkout counters. Amazon Go, a retail space located in the company’s hometown of Seattle, lets shoppers just grab the items they want and leave; the order gets charged to their Amazon account afterwards.
Amazon Go works by using computer vision and sensors to detect what items you’re taking out of the store. You start by scanning an app as you enter the Amazon Go shop. As you leave, the sensors at the door identifies the items in