“This year’s Guangzhou Triennial, the city’s third attempt to lure the art world, is a fair too far. Never mind that it runs at the same time as the triennials in Nanjing and Yokohama or the Taipei and Singapore Biennales. Those it could probably cope with. But Beijing and Shanghai have also just held flagship art shows. Even in the nation’s gravity-defying contemporary art market, there are only so many collectors to go round.”