(The psuedoscience of planning seems almost neurotic in its determination to imitate empiric failure and ignore empiric success.)

I have been dwelling upon downtowns. This is not because mixtures of primary uses are unneeded elsewhere in cities. On the contrary they are needed, and the success of mixtures downtown (on in the most intensive portions of cities, whatever they are called) is related to the mixture possible in other part of cities.

The ballet of the good city sidewalk never repeats itself from place to place, and in any one place is always replete with new improvisations.

There are two ways you encounter things in the world that are different. One is everything that comes in reinforces what you already believe and everything that you know. The other thing is that you stay flexible enough or curious enough and maybe unsure of yourself enough, or may be you are more sure of yourself - I don't know which it is - that the new things that come in keep reforming your world view.

Innovating economies expand and develop. Economies that do not add new kinds of goods and services, but continue only to repeat old work, do not expand much nor do they, by definition, develop.

Expanding the Toronto Island Airport will undermine the downtown's economy and liveability and intensify pollution and smog from Oshawa to Oakville. I urge Torontonians to close down this dangerous Trojan horse and get on with planning constructive and delightful ways of using our magnificent lakeside assets.

Automobiles are often conveniently tagged as the villains responsible for the ills of cities and the disappointments and futilities of city planning. But the destructive effect of automobiles are much less a cause than a symptom of our incompetence at city building.