This brings up an interesting question: how should city planners make decisions about long term infrastructure if their populations are unstable?

Will the trend of working for many companies for shorter periods of time, and therefore perhaps moving more often, make certain city populations less stable than others?

It seems the key point is here: "It’s kind of counterintuitive, but maybe you can actually do more projects that are less related to each other. Normally in a business, you think about, "What’s the adjacent thing that I can do?" because that’s where you must have experts."

I wonder if we'll see more companies doing the same, growing by moving into areas orthogonal to their first successful product?

It may be the exception that proves the rule.

Capitalism, Socialism, and Democracy by Joseph Schumpeteer and Small is Beautiful by Schumacher are two classic, heterodox economic works. People outside the field rarely read them, which is a shame. Both have very high S/N ratios, and will make any reader more thoughtful about the world.