This is the second post in our series on the future of display advertising. Today, Neal Mohan looks at how new technology can power creativity in the years ahead - Ed. Imagine you own a popular coffee chain in Denver that you want to promote. On Monday afternoon, it's warm and 80 degrees in the city. You run a display ad campaign online that offers Denverites a discount coupon for an iced cold latte, with a searchable map embedded in the ad to show local branches,