In the next few years, the nation’s wealth will either stagnate or shrink. The fiscal squeeze will grow severe. There will be fiercer struggles over scarce resources, starker divisions along factional lines. The challenge for the next president will be to cushion the pain of the current recession while at the same time trying to build a solid fiscal foundation so the country can thrive at some point in the future.

We’re probably entering a period, in other words, in which smart young liberals meet a stone-cold scarcity that they do not seem to recognize or have a plan for.

In an age of transition, the children are left to grapple with the burdens of their elders.