We could do some household and neighborhood or town wind energy. But even this will run up eventually against the problem of needing an underlying fossil fuel economy to fabricate the hardware. Same with photovoltaic (solar) energy. We're going to be disappointed by what these things can do for us.

The two elements of the suburban pattern that cause the greatest problems are the extreme separation of uses and the vast distances between things

I do not believe we will get to Ray Kurzweil's proposed "singularity" in which human minds meld with machines to produce, in effect, synthetic human evolution. Our basic problems with maintaining the electric grid argue against that fantasy.

I was not a hard-liner against nuclear, because I viewed that as perhaps the only way we might keep the lights on another 25 years. But lately I am on board with Nicole Foss's argument that we will not have the capital or even the social cohesion to build anymore nuke plants.

It is true that we need a consensus to go forward with restoring passenger rail in America, and often a consensus is formed by political action, via government. That is all true. But we have no such consensus, and no one in government or politics these days has the will or the force of personality or perhaps even the understanding of the situation to get on with job of forming a consensus supporting rail.

The ideas of [ Le Corbusier ] that actually found their way into practice were deeply destructive - for instance, the tower-in-a-park, which mutated into the vertical slums of the late 20th century.

The twentieth century was about getting around. The twenty-first century will be about staying in a place worth staying in.