WILLIAM KAUFMAN—This bubble is a cloistered biosphere of Teslas and beach houses, of con artists, kleptocrats, and financial sorcerers. It is rigorously insulated from the dolorous real economy inhabited by the 99 percent: declining living standards; stagnant real hourly wages; lousy service-industry jobs; debilitating consumer and student debt peonage; soaring medical insurance premiums and deductibles that render many people’s swiss-cheese policies unusable; crumbling cities and infrastructure; climate disasters of biblical proportions; and toxic food, water, and air.