Reflects on the content and arguments of the series as a whole, emphasizing that high-speed rail drives urban and suburban development, provides major economic stimulus, and involves changes in life-style and culture. Discusses American freight rail as the international gold standard of efficiency and productivity and light rail as a priority, even in “second-tier” American cities. Considers figures on increased passenger rail ridership and their implications for high-speed rail systems serving appropriate markets. Projects that, by circa 2040, the nation will have a high speed network to serve the vast production hubs of the Texas triangle, the Great Lakes megapolis, and California.