Tencent-backed Meituan Dianping is already handling millions of food orders every day and expects daily orders to climb 3 to 4 times in next five years. Xia Huaxia, chief scientist at the company, says the food-delivery platform is counting on A.I. as well as robot couriers to help cope with the surge. He spoke exclusively to Bloomberg's Tom Mackenzie in Beijing. (Source: Bloomberg)