Niklas Luhmann is considered one of the most influential sociological theorists of the 20th century, known primarily for developing a comprehensive social systems theory. Drawing on cybernetics, biology, and the work of Talcott Parsons, Luhmann formulated a radically constructivist and autopoietic model of society, in which communication—not individuals or actions—is the fundamental element of social systems. His theory explains how complex societies maintain stability and manage contingency through functionally differentiated subsystems such as law, politics, economy, and science. Luhmann’s writings are characterized by their abstract language, recursive logic, and ambition to describe society as a self-referential system. His approach continues to influence sociology, legal theory, organizational studies, and political science, particularly in German-speaking academia.
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