It's nighttime, but I blink as if blinded by the sun, trying to comprehend how this postmodern cosmopolitan overload—which didn't exist even five years ago— could have landed not two blocks from my little 1830s "Philadelphia-style" rowhouse. It costs more to fill up the Hummer than to heat my place for the winter, and I'm a little worried the wheeled beast is going to open its grill and swallow my happy home in one big bite.