Cities, noted René Descartes, should provide “an inventory of the possible,” a transformative experience—and a better life—for those who migrate to them. This was certainly true of seventeenth-century Amsterdam, about which the French philosopher was speaking. And it’s increasingly true of Texas’s fast-growing metropolises—Houston, Dallas–Fort Worth, Austin, and San Antonio. In the last decade, these booming cities have created jobs and attracted new residents—especially young families and immigrants—at rates unmatched by coastal metropolitan areas. Approximately 80 percent of all population growth in the Lone Star State has been in the four large metropolitan areas since 2000. Texas now boasts two of the nation’s five largest metros, the first time any state has enjoyed that distinction. At its current rate of growth, Houston could replace Chicago as the nation’s third-largest city by 2030, and the Dallas–Fort Worth region could surpass Chicagoland as the nation’s third-largest metropolitan area by the 2040s.