Consequently, an analysis is necessary to understand how to interpret these'facts .'Pepper does so by developing the " [ root metaphor method, . . . ] and outlines what he considers to be four basically adequate world hypotheses ( world views or conceptual systems ) : formism, mechanism, contextualism, and organicism . " He identifies the strengths and weaknesses of each of the world hypotheses as well as the paradoxical and sometimes mystifying effects of the effort to synthesize them.