Last night a dinner engagement with an old friend fell through and my wife had her own dinner plans with former colleagues, leaving me in the city center with two hours of empty time--a precious commodity in Shanghai.  I decided to take advantage of the opportunity to reacquaint myself with the Shanghai nightscape.  From Xintiandi 新天地, where my wife and I had gone to have a cup of coffee, I strolled into the darkening evening, heading Bundward.