"Davis already had slums on his mind, since he was midway through the manuscript that became Planet of Slums, out next month. The book's opening paragraph shows off his hyperbolic streak, predicting the birth of a baby who will mark 'a watershed in human history, comparable to the Neolithic or Industrial revolutions.' Davis isn't talking about the second coming of Jesus but a huge epochal shiftâ€"the moment when the planet's urban population outnumbers the rural."
