 By the summer of 1953, when Popper had to apply for extra funds to allow Feyerabend to work as his assistant, Feyerabend had decided to leave the Popperian church and return to Vienna. Although the assistantship was soon approved, Feyerabend “felt quite uncomfortable. I couldn’t put my finger on it; I only knew that I wanted to remain in Vienna” (p. 99). 