The Galleria then turned to diversity to increase revenues. Hotels and office buildings were incorporated to attract more people and more revenues. The mixed use was more efficient. If everything was in one place, you maximized convenience and people came. The market may produce new cities as exciting as the old ones.
Cities are always products of the existing technology.
Today's defining technology is the combination of the automobile, the jet plane, and the computer. All of these combine for incredible mobility and rapid communication of the products of the information age. The office not the factory is the work site of the future. Cities have always represented nodes where raw materials are transformed into products that are then shipped to the rest of the market. Edge Cities perform this function in a world where the main product is information and decisions.