It's noon. You're starving, and you need some food now—right now. Back in the old days, if you ordered some delivery, that food might come from a driver or bicycle delivery person. But this is the age of the drone. Therefore, your takeaway might not come with a knock at the door, but with a drone hovering outside your window. Drone delivery hasn't advanced to the point that it will fly up to your 14th floor office window, but in Shanghai's Jinshan Industrial Park, drone delivery has already started. There, online retail giant Alibaba directs the service through its Ele.me food delivery brand. Drones fly along 17 specific routes. Customers can order from any one of 100 restaurants operating in the park. After the order is received and made, a member of the restaurant staff places the meal in the drone. It then flies to a delivery point nearest the customer. It is then picked up by an Alibaba employee and carried the rest of the way. All of this takes just 20 minutes. Ele.me says the drone delivery method greatly reduces operating costs. If it's faster and cheaper, what's not to love about flying food?