This Derek Thompson interview with Ryan Avent is interesting throughout. Here is one bit:
It is ironic that liberals, who in the abstract support more inclusive immigration and shared wealth, often live in coastal metros areas that are exclusive by design—they are built around water, limit housing height, and declare certain zones out-of-bounds for further construction. As you point out in the book, one of the tallest buildings in New York City is a residential tower on Park Avenue that is home to a stack of billionaires who, although they could live in any ZIP code on the planet, have chosen to live on top of each other, like candies in a Pez dispenser.
And this (on life after automation):
The very rich will still want people, their own personal shoppers and assistants. Being able to retain human labor would be a sign that you’re wealthy. So even in a future city that had a lot of laborers replaced with technology, you might still have artisanal service sector workers.