The story of Susan Boyle like that of Paul Potts before her is, except to the most jaded and curmudgeonly among us, completely irresistible. Fished, seemingly, from the bottom of the troll pond by Britain’s Got Talent, these two humble, working-class, physically ill-favored souls were suddenly found to be capable of creating things of astonishing beauty. People reacted as if vast quantities of treasure were discovered in the trunk of a broken-down Hyundai abandoned on their street