I’ve been reading—or, as Bill Kristol likes to say, “reading in”—Jane Jacobs’ classic treatise on urban development, The Death and Life of Great American Cities. Maybe Jacobs is old hat to professional city planners and architects, but to a hobbyist like me she came across as incredibly profound. To pick just one example of her insight (among a great many): Neighborhoods cannot be redeveloped all at once because they need a diversity of building stock. New buildings carry higher rents. Only certain kinds of businesses can afford them: They tend to be established chains with high margins and low volatility. That’s why, whenever you pass through a recently redeveloped urban neighborhood you see a lot of frontage dominated by banks and national-chain pharmacies. Old, crappy buildings have cheaper rents. Which allows all sorts of different businesses to set up shop: Ethnic restaurants, used book stores, cafes, comic book shops! The kind of borderline businesses which are undercapitalized and risky and may not last—but which make living in the neighborhood pleasant. Naturally, you don’t want to live in a crumbling urban neighborhood where everything is falling apart. But neither do you want to live in an all-new neighborhood where everything has recently been bulldozed and replaced by a series of symmetrical, concrete boxes. What you want, ideally, is a neighborhood which is in the process of slow, perpetual, piecemeal renewal. Which brings us to Scott Alexander’s recent essay on James Scott’s much-acclaimed Seeing Like a State. Here’s a sample: Scott starts with the story of “scientific forestry” in 18th century Prussia. Enlightenment rationalists noticed that peasants were just cutting down whatever trees happened to grow in the forests, like a chump. They came up with a better idea: clear all the forests and replace them by planting identical copies of Norway spruce (the highest-lumber-yield-per-unit-time tree) in an evenly-spaced rectangular grid. Then you could just walk in with an axe one day and chop down like a zillion trees an hour and have more timber than you could possibly ever want. This went poorly. The impoverished ecosystem couldn’t support the game animals and medicinal herbs that sustained the surrounding peasant villages, and they suffered an economic collapse. The endless rows of identical trees were a perfect breeding ground for plant diseases and forest fires. And the complex ecological processes that sustained the soil stopped working, so after a generation the Norway spruces grew stunted and malnourished. Yet for some reason, everyone involved got promoted, and “scientific forestry” spread across Europe and the world. And this pattern repeats with suspicious regularity across history, not just in biological systems but also in social ones. Natural organically-evolved cities tend to be densely-packed mixtures of dark alleys, tiny shops, and overcrowded streets. Modern scientific rationalists came up with a better idea: an evenly-spaced rectangular grid of identical giant Brutalist apartment buildings separated by wide boulevards, with everything separated into carefully-zoned districts. Yet for some reason, whenever these new rational cities were built, people hated them and did everything they could to move out into more organic suburbs. And again, for some reason the urban planners got promoted, became famous, and spread their destructive techniques around the world. Even if you’re not going to read Scott’s entire 500-page book (no judgment, I probably won’t read the whole thing either) Alexander’s essay on it strikes me as pretty useful. And not just because the stuff on Le Corbusier alone is insane: The Soviets asked him to come up with a plan to redesign Moscow. He came up with one: kick out everyone, bulldoze the entire city, and redesign it from scratch upon rational principles. For example, instead of using other people’s irrational systems of measurement, they would use a new measurement system invented by Le Corbusier himself, called Modulor, which combined the average height of a Frenchman with the Golden Ratio. The Soviets decided to pass: the plan was too extreme and destructive of existing institutions even for Stalin. Undeterred, Le Corbusier changed the word “Moscow” on the diagram to “Paris”, then presented it to the French government (who also passed). Some aspects of his design eventually ended up as Chandigarh, India. But the big take-away for me about Scott is the portrait of the importance of traditions. For example, Scott describes pre-colonial farming practices in Tanzania, where farmers would grow “dozens of crops together in seeming chaos.” Colonists forced them to grow just a single crop at a time. Which was the state of agricultural science in Europe, but turned out to be a very, very bad idea in Tanzania, because: The multistoried effect of polyculture has some distinct advantages for yields and soil conservation. “Upper-story” crops shade “lowerstory” crops, which are selected for their ability to thrive in the cooler soil temperature and increased humidity at ground level. Rainfall reaches the ground not directly but as a fine spray that is absorbed with less damage to soil structure and less erosion. The taller crops often serve as a useful windbreak for the lower crops. Finally, in mixed or relay cropping, a crop is in the field at all times, holding the soil together and reducing the leaching effects that sun, wind, and rain exert, particularly on fragile land. Even if polyculture is not to be preferred on the grounds of immediate yield, there is much to recommend it in terms of sustainability and thus long-term production. The Tanzanians couldn’t explain this in technical terms and the colonists couldn’t understand it until they did a post-mortem of the disaster they caused. But the point here isn’t about cultural miscommunication. It’s that highly evolved systems are incredibly complicated and interrelated in ways which insiders can only intuit and outsiders cannot even see, let alone understand. And that describing these systems using formal rules is a fool’s errand. You monkey with them at your peril and can only minimize the unintended negative consequences by proceeding slowly, and in an iterative manner. And if this is true for farming practices in Tanzania, just imagine how true it is for large components of entire civilizations. Like, oh . . . I don’t know . . . let’s just pick a topic at total random. How about marriage? You take an institution which is the product of literally thousands of years of evolution. With an unfathomable set of implicit and explicit traditions. That is the basic building block of human organization. And in the span of a single generation a few elites disentangle it from reproduction, make its contract highly soluble, redefine it to include same-sex unions, and then start pushing polyamory. How is this not like Le Corbusier bulldozing Moscow and re-engineering it according to an invented system of measurement? And the answer, of course, is that it’s exactly like that. And we are now dealing the consequences at every level. Well that got out of hand fast. There’s a new Substandard podcast coming tomorrow! We talk about the new Beauty and the Beast and gay Lefou and Disney movies in general. I rank the Disney animated movies—because that’s my move—and I’ll give you a small spoiler: The worst Disney film ever is The Little Mermaid. Download the show tomorrow and you’ll hear why. And if you haven’t already, then subscribe on iTunes or Google Play. It’s great. Best, JVL |