Friedman identifies an 80-year "institutional cycle" and a 50-year "socio-economic cycle" that has seen the formation of the industrial classes, baby boomers, and the middle classes. These two major cycles are converging on the late 2020s -- and the world will have to endure upheaval and possible conflict. He outlines upcoming challenges, shifts in corporate structures, and new trends resulting from longer life expectancy. As the role of the United States changes, will it lead to increased strength and stability, or critical crises?