Every so often one can feel a perceptible shift in the center of the artworld. “And it is, so the received wisdom has it, about to happen all over again; for there is a country that can – and does – boast 3,000 years of culture, dizzying rates of economic growth and a long-suppressed determination to engage the outside world in its inexorable rise as a global power. Little wonder that all eyes were on China…”