> This data is much more powerful than large retail outlets have with their store brands: “I can’t just walk into a store and say, ‘Excuse me, did you look at t

> This data is much more powerful than large retail outlets have with their store brands: “I can’t just walk into a store and say, ‘Excuse me, did you look at this brand of cereal this morning and decide not to buy it?’ They definitively can, and are. Granted, it's a fairly new development.