The realm of the animated is different. It’s vastly interconnected. In this coming world a head of lettuce carries its own identity and price, displayed perhaps on an LED slab nearby, or on a disposable chip attached to its stem. The price changes as the lettuce ages, as lettuce down the street is discounted, as the weather in California changes, as the dollar surges in relation to the Mexican peso. Traders back in supermarket headquarters manage the “yield” of lettuce prices using the same algorithms that airlines use to maximize their profits from airline seats.