'Life in Shanghai was lived wholly within an intense present,' wrote JG Ballard in his childhood memoir, Empire of the Sun, about growing up in the war-torn city in the 1930s and 1940s. Arriving on the Bund, Ballard-style, in a chauffeur-driven Rolls-Royce, with the war over, Mao long dead, and the Communists open for business, I expected things to have calmed down by now. But there was a gigantic throng on the historic waterfront. 'Everybody from all over China is here for the Expo,' said the driver in broken English as we passed the banks and consulates on the left and the Huangpu river on the right. Sure enough, the local newspaper confirmed that 800,000 visitors, 99.9 per cent