Sublime

Such environments can promote the stability and continuity necessary for the pursuit of more speculative research and development or for extreme specialization,

we have found new routes for understanding cities as (approximate) spatial equilibria, for deriving their structural complexity in terms of professions and neighborhoods, for understanding the first cities and their “urban package” of technologies and institutions, and for demystifying the microscopic foundations of learning

In short, Erik was able to translate his vision for improving the sustainability of the waste business into a new, highly disruptive—and highly profitable—business. The conversation around reimagining capitalism is sometimes framed in terms of a tension between profits and purpose. NG’s case illustrates why this conversation is missing the point.

there is a minimum population size threshold necessary for the advantages of population connectivity to tell.

neighborhoods are ideal environments that make community organization possible and natural and that consequently can create practical Politics for human sustainable development.

The flip side of the observed constancy and stability of growth rates in American cities is that extant wage disparities between urban areas become extremely slow to reverse.

This brings up a question of cause and effect: Do costs go down because cumulative production goes

We would now like to account for the behavior of collective growth in a system of cities and the pattern of relative fluctuations. Specifically, we would like to understand at a fundamental level the slowness and persistence of these deviations from scaling as well as get a handle on their typical magnitudes.

the nature of interactions changes at short distances and all kinds of problems ensue.