Amazon patented a way to ship a package toward you before you order it, and Walmart learned that a hurricane warning sells strawberry Pop-Tarts. The episode closes the argument: retail moved from reacting to demand to predicting it. It gives a verdict on 250 years, where speed and price were real gains and market power the recurring bill, and leaves open who decides what is on the shelf.
The Pop-Tarts and Target stories rest on executives' statements to reporters rather than independent documentation. Amazon's patent does not show whether unaddressed shipping occurs at scale, and concentration data can support both the series' thesis and its counterargument.