Americans are suffering so much from being in unrewarding environments that it has made us very cynical. I think that American suburbia has become a powerful generator of anxiety and depression.

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.

I generally avoid over-population arguments. But there's no question we're in population overshoot. The catch is we're not going to do anything about it. There will be no policy. The usual suspects: starvation, war, disease, will drive the population down. There's little more to say about that really, and it's certainly an unappetizing discussion, but it's probably the truth. In any case, we're in overshoot and we face vast resource scarcities.

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.

We will have to make new arrangements, or revive bygone ones. We may, for another example, see the return of the boarding house.

Detroit right now is virtually abandoned at its core to the degree that a lot of what had been slums thirty years ago are now wildflower meadows. The rebuilding of Detroit will occur a much smaller scale. It remains to be seen what will become of Detroit's vast suburbs.

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.