Most people in the United States are under coronavirus-induced lockdown orders. The retail economy is at a standstill. Grocery stores, hardware stores, and "essential" businesses of the like remain open, but practically every other enterprise from New York to Los Angeles is shuttered. Some states and municipalities have even cordoned off the areas of essential stores that are deemed inessential. The objective of these lockdowns, which was originally to reduce peak medical demand, has morphed into something more expansive: If a population stays inside long enough that there is no transmission and no new infections, eventually the virus will stop circulating within that given geographic area. Once the area reopens, there will be few to no carriers of the virus and, consequentially, little risk of a coronavirus surge. This thinking can be extended to the nation at large: If the entire country remains locked down and there are no entrants, eventually cases will peter out. Th...