Cities like Detroit exist because they occupy important sites. In the case of Detroit, it sits on a river between two great lakes - very important and strategic.

The economy of the 21st century will come to center on agriculture. Life will be intensely and profoundly local in ways that we can't conceive of today. Economic growth, as we have known it in a cheap energy industrial paradigm, will cease.

At the heart of our misunderstanding and infantile behavior is the wish for a miracle cure.

There is not going to be a "hydrogen economy," and no combination of alternative energy systems or fuels will allow us to continue the suburban pattern. It's finished. We will, however, desperately need to grow more of our food closer to home, and so the preservation of agricultural hinterlands is of great importance. But don't expect the fiesta of suburban construction to continue more than a few more years.

Despite the obvious damage now visible in the entropic desolation of every American home town, Wal-Mart managed to install itself in the pantheon of American Dream icons, along with apple pie, motherhood, and Coca Cola.

Two decades from now, I doubt that the home building industry, so called, will even exist as we have known it.

The American house has been TV-centered for three generations. It is the focus of family life, and the life of the house correspondingly turns inward, away from whatever corresponds beyond its four walls.At the same time, the television is the families chief connection to the world. The physical envelope of the house itself no longer connects their lives to the outside in any active way; rather it seals them from it.The outside world has become an abstraction filtered through television, just as the weather is an abstraction filtered through air conditioning.