  An interesting hypothesis was recently formulated by Eva Hedfors (2006), who critically evaluated Fleck’s competencies in the history of medicine. She claims that the chief role in the development of his thought was played by the interdisciplinary journal Die Naturwissenschaften, where on the turn of the 1920s and 1930s scientists and philosophers carried out a philosophical debate about the relativistic and quantum revolution in physics. According to Hedfors this debate inspired Fleck, who wrote on the “physics of tomorrow”: