This essay examines the contemporary approaches to systems theory, the strengths and limitations of these approaches, and how communication researchers can apply them creatively. It points out that using system approaches requires communication scholars to study the mutual interaction of both information inputs and matter/energy inputs. Overloads of these inputs coupled with storage problems could engender positive feedback loops and move the system away from the linear region of stability toward the edge of chaos. It could then self-organize as a (...) more complex system in a new phase space of its trajectory. This complexity approach could be used to trace the trajectory of the global mass communication system or to conduct empirical research on all or any of the information-processing subsystems within the eight hierarchical levels of nested systems ranging from cell to supranational systems. Although systems thinking is writ large in the onto-cosmology of Eastern philosophies, its epistemological and methodological refinements did not occur until quantum physics challenged the ‘atomism’ of the dominant Newtonian-Cartesian model. (shrink)