Link: The Rise of the Ephemeral City | Metropolis Magazine.

Cities have always been about change. And as we plunge deeper into the millennium, we may now be witnessing the emergence of a new kind of urban place, populated largely by nonfamilies and the nomadic rich. This "ephemeral city" might become the prototype for advanced countries in the twenty-first century. San Francisco, Paris, Berlin, Vienna, and parts of New York already serve as ephemeral cities. Unlike the imperial capital, which administered a vast empire and extracted riches from it, or the commercial city, which thrived by trading goods, the ephemeral city prospers by providing an alternative lifestyle to a small sector of society.