Ideas are the currency of the new economy.

Denser cities are smarter and more productive

Ideas are the currency of the new economy.

Too much of what led up to the crisis in the old bubble days—the conspicuous consumption, the latter-day Gatsbyism—was fueled by a need to fill a huge emotional and psychological void left by the absence of meaningful work. When people cease to find meaning in work, when work is boring, alienating, and dehumanizing, the only option becomes the urge to consume—to buy happiness off the shelf, a phenomenon we now know cannot suffice in the long term.

We are the only major developed nation that isn't investing meaningfully in high-speed rail, and I believe we're making a mistake. Transportation systems that are fast and efficient and environmentally clean are going to enable the formation of these new mega-regions, the heart of the spatial fix. We need to be able to accelerate the movement of people, goods, and services - the very movement of ideas, knowledge, and creativity - between our major population centers. We have to build these links.

There's no getting around the fact that some cities face long odds, and governments and societies are going to be confronted with some hard decisions. Most importantly, cities have to recognize that in times of crisis they have to help themselves. Governments, no matter how well intentioned, can only do so much, especially when they themselves are so strapped for cash, as the U.S. is now. Government money will probably flow to cities and regions with good prospects for the future, so as not to risk money even further by pouring it into stalled economic models.

Already, new forms of short-term and long-term rental housing are popping up in some metro areas. You can take on a house or apartment for a few months or even a year or two in developments that are striving to provide critical elements of community - schools, healthcare, social and cultural institutions - even for people who are living there only temporarily. People invested in a home, mortgage, or community are less likely to move to more economically vibrant locales. That kind of entrenchment is going to be an impediment to the coming spatial fix.