Dismissing criticisms that Leonard Peikoff's book, The DIM Hypothesis, is unscientific, deterministic, or rationalistic, this essay focuses on problems with the logical framework of Peikoff's study of Western culture. In particular, Peikoff has conflated two different kinds of rationalists and empiricists and has completely overlooked combinations of the Platonist and so-called “Kantian” modes. As a result, his three pure integration “modes” actually produce not just two “mixtures” but a total of six. Furthermore, without absolving Kant of very serious philosophical errors, (...) the author marshals evidence that the real culprit responsible for the culturally disastrous “Disintegration” mode was one of Kant's predecessors. (shrink)