Anywhere that’s a candidate to become high density is low or medium density first. Crossroads becomes village becomes town becomes city becomes megapolis. Incumbents were not consulted about these changes; they were economically inevitable. Then progressivism took hold, institutions got more democratic and accountable, we stopped letting economics run roughshod over the hapless little people. Plus the high modernists did some incredibly tone-deaf fuckups which prompted every community to develop a hair-trigger immune system against sweeping changes from above. Heavy consultations and veto points mean a handful of motivated people can kill any project.
The first time a place is developed it’s almost always going to be low density. And once a place is developed the first time, the only way it can be substantially changed is with near-unanimous consent. There are enough people with an innate distrust of change that this consent is not forthcoming. So the initial conditions are permanent. Cities can’t evolve anymore.
> There are enough people with an innate distrust of change that this consent is not forthcoming.
No amount of 'trusting change' will transform the millions of spread out homes already constructed over 80 years into densely packed apartment buildings without tearing the houses down and putting the apartment buildings up. Pre-car cities were built high-density from the beginning. They were never low-density.
Even New York started out looking like a small town. There are lots of places that look like this in California today, and are under comparable economic pressure to grow. They're just choosing not to respond.
The first time a place is developed it’s almost always going to be low density. And once a place is developed the first time, the only way it can be substantially changed is with near-unanimous consent. There are enough people with an innate distrust of change that this consent is not forthcoming. So the initial conditions are permanent. Cities can’t evolve anymore.