Review of On the Internet by Berkeley philosopher Hubert Dreyfus, who argues that the belief in the adequacy of interactions on the Internet shares the problems of Cartesian mind-body dualism. He invokes a number of (pre-electronic) philosophers, including Kierkegaard, Nietzsche and phenomenologists such as Merleau-Ponty, to argue for the importance of not leaving the body behind in interactions; he is especially concerned about distance learning over the net. Taking pains, however, to establish that he is no Luddite himself, he notes that he has recorded his lectures on .mp3 and even broadcast one of his courses on the web. Chronicle of Higher Education