 Dewey’s critique and reconstruction of the reflex arc presaged other important developments in his pragmatism. His argument that psychology needed to pay greater attention to context and function was applied, in time, to all the sciences, as well as to logic and mathematics. The methodological lesson was, in effect, a warning not to mistake eventual outcomes of analysis for existents already  there.[5]  Theoretical distinctions which are meaningful in specific situations depend upon a wider context that is both retrospective and prospective.