James Richards, still from “Rosebud”, 2013Courtesy of the artistThe announcement of the shortlist for the 30th Turner Prize was made last week, and, as ever, it was met with a strident wall of comment. First and foremost on the critical agenda was the fact that nowhere among the contenders could be found a “traditional” artist, with neither painting nor sculpture having a representative. Who knows what this “means for British art” but what is clear is that, as technology advances...