As production becomes increasingly clean and knowledge-based, as our urban economies tip dramatically to service industries, as racism and ethnic animosities ebb, and as the model of mixed use becomes more and more persuasive and visible, cities are in a position to dramatically rethink zoning as a medium for leveraging and usefully complicating difference, rather than simply isolating it.
Raskin, in his essay on variety, suggested that the greatest flaw in city zoning is that it permits monotony. I think this is correct. Perhaps the next greatest flaw is that it ignores scale of use, where this is an important consideration, or confuses it with kind of use.
Work uses suggest another bugaboo: reeking smokestacks and flying ash. Of course reeking smokestacks and flying ash are harmful, but it does not follow that intensive city manufacturing (most of which produces no such nasty by-products) or other work uses must be segregated from dwellings. Indeed, the notion that reek or fumes are to be combated by zoning and land-sorting classifications at all is ridiculous. The air doesn’t know about zoning boundaries. Regulations specifically aimed at the smoke or the reek itself are to the point.
Lying somewhere between a club and a loosely defined set of friends, the SMALL GROUP is a repeated theme in the lives of the successful. Benjamin Franklin had the Junto Club, Tolkien and C.S. Lewis had The Inklings, Jobs and Wozniak had Homebrew.
Around a dozen members is the sweet spot of social motivation: small enough to know everyone, yet large enough that the group won’t collapse if one or two members’ enthusiasm wanes; small enough that you are not daunted by competing with the whole world, yet large enough that you still need to be on your toes to keep up.