quote 22:23:06 Consider the recent installation of a completely virtual store by Korean supermarket Home Plus, a division of Tesco, in a Seoul subway station. At this store, life-sized images of food, milk cartons, and other groceries appear on a screen, as if placed on shelves. Busy commuters use their mobile phones to snap QR codes on the ersatz sundries to quickly order the real products online. The groceries are delivered by the time they reach home. Home Plus has reported that during a recent trial run of the virtual store, the company saw a 130 percent increase in online sales.