 In Feyerabend’s autobiography, we are told a little about Popper’s lectures and his famous LSE seminar. The lectures began with the claim that there is no method in science, but that there are some simple and helpful rules of thumb. Popper tried to show “how simple ideas that were derived from equally simple requirements brought order into the complex world of research” (pp. 88–9). Having being convinced by Popper’s and Pierre Duhem’s critiques of inductivism (the view that science proceeds through generalisation from facts recorded in experience), Feyerabend considered falsificationism a real option, and, he says, “fell for it” (p. 89), applying falsificationism in his papers and lectures. This is not his first admission that he was a falsificationist, but it is notable that he did not see it as entailing his having been a Popperian. Feyerabend was (usually) a fairly liberal falsificationist, always emphasising the tenacity with which scientists should defend their theories, and allowing that scientific theories can start by being untestable. Faithful Popperians like John Watkins and Joseph Agassi, he emphasises, continually ticked him off for being unorthodox (he was later accused, by Agassi, of plagiarising from Popper). Instead he later saw this interlude as an example of the dangers of abstract reasoning. Rationalism is already dangerous, since it “paralyses our judgment” (p. 89) and is invested with “an almost superhuman authority” (p. 90). But Popper added a further dangerous element: simplicity. Such a philosophy, complains Feyerabend, “may be out of touch with reality… [that is], with scientific practice” (p. 90).