Between now and February 18, 11 Gagosian galleries worldwide are exhibiting British superstar Damien Hirst's iconic grid canvases, in which the artist reduces "painting" to a series of uniform pigment deposits, placed not by his own hand, but by paid minions. Is it art? Is it cheating? You decide. The exhibition represents a rare opportunity to ponder these questions, plus determine if the paintings have a physical presence that transcends the coldly conceptual.