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.

Ideas are the currency of the new economy.

Economies and societies invariably remake themselves in the wake of a crisis. It's a necessary component of rebound and recovery. Outmoded industries and tired consumption habits make way for new goods and services, new careers and forms of employment, and population realigns itself in the landscape. All these developments are connected to lifestyle changes.

I call the age we are entering the creative age because the key factor propelling us forward is the rise of creativity as the primary mover of our economy.

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.

We need to find ways to transform the more than 60 million service jobs, which make up 45 percent of U.S. employment, in the same way - rewarding workers financially, encouraging and empowering creative participation, creating professional communities, and so on. We can look to any number of new companies - from Zappos, to Starbucks, to American Apparel - for examples of how this idea might play itself out. We need to do more to make service jobs into higher-paying family-supporting jobs of the future.

Builders need to take their preeminent position back from the traders for the economy of the future to flourish.