How Email Brings You Closer to the Guy in the Next Cubicle

As a columnist (which is fancy for "journalist in jammies"), I ought to personify the conventional wisdom that distance is dead: All I need to get my work done is a place to perch and a Wi-Fi signal. But if that's true, why do I still live in London, the second-most expensive city in the world?
If distance really didn't matter, rents in places like London, New York, Bangalore, and Shanghai would be converging with those in Hitchcock County, Nebraska (population 2,926 and falling). Yet, as far as we can tell through the noise of the real estate bust, they aren't. Wharton real estate professor Joseph Gyourko talks instead of "superstar cities," which have become the equivalent of luxury goods — highly coveted and ultra-expensive. If geography has died, nobody bothered to tell Hitchcock County.