In 2007, Chu Yun mounted a show at Vitamin Creative Space, then located in the depths of a bustling vegetable market in Guangzhou. Titled “Smile of Matter,” the exhibition featured works made from the detritus—and conjuring the atmosphere—of a sad-sack middle-class consumer’s day-to-day life: a cellphone, a light box advertising a new laptop, a bottle of Absolut Vodka, and a radio, to name just a few. The most notable works were Constellation, 2006, a dark room packed with electrical appliances in which one saw little more than flashing indicator lights recalling a starry sky, and Who Has Stolen