the city is split by the huangpu river, a tributary of the yangtze, into the older section, which features the bund, and the newer, built-up section of pudong. the one thing i know for sure about china is that we'll never know china. it's too big, too old, too diverse, too deep. there's simply not enough time. that's, for me, the joy of china -- facing a learning curve that impossibly steep. the certain knowledge that even if i dedicated my life to learning about china, i'd die mostly ignorant. that's exciting. it's too much. and it's changing so fast. china has a population of around 1.3 billion people. and the number of them who are joining an explosive middle-class, demanding their share of all that good stuff -- infrastructure, the clothes, the cars, the gas to fuel them --