On January 31, 2008, Swiss curator, critic and historian Hans Ulrich Obrist conducted a "marathon" of conversations in Beijing, after the example of his famous Serpentine Gallery marathons. This marathon called on artists, cultural producers and media practitioners to discuss the post-Olympic state of the city. Participants included internationally renowned artists Ai Weiwei and Cao Fei, writer and publisher Hung Huang, fashion designer Zhang Da and...