THE CORONAVIRUS PANDEMIC has offered a poignant reminder, as if we needed one, that the United States is a profoundly unequal country. Over the past year, the The Washington Post recently reported, nine tech billionaires saw their net worth increase by a total of $360 billion. Eight of the nine men made their fortunes at companies based in the San Francisco Bay Area or Seattle, where most of them still live. (The biggest winner, Elon Musk, recently decided to ditch California for Austin, the tech boomtown of Texas.) Their runaway wealth reflects not just the divide between the top earners and everyone else but the geographic clustering of prosperity in America. Read more..