Italian author of 'The Name of the Rose', Umberto Eco, signing his new book 'The Prague Cemetery' this evening at Kulturhuset. (http://bit.ly/pg5cNI) An erudite scholar, he told the audience that, in human chemistry, "I'm not interested in geniuses." I took the occasion to ask him about a mystery I've long harbored: why the Kabbalah text in Hebrew was printed upside-down on opening page of the Swedish translation of 'Foucault's Pendulum'. "Since no one seems to have noticed it, was it entirely intentional, with some hidden religious meaning to be inferred perhaps?" "No, no, it appears so only after the Dutch version made a mistake ..."