Sometimes I look at the battered exteriors of apartment buildings in New York and think how these sorry shells have housed such a long procession of styles. The money! The effort! One tenant mirrors everything, the next panels the walls, the third lines them with mylar, the fourth turns to toile de Jouy, the fifth to pegboard or handblocked rice paper. The expensive if often shoddy interiors installed only to be dismantled, the exterior left untouched as it turns yet another shade sootier - this transience seems a fitting emblem for the way we stay up-to-date without ever changing.