In this article an epistemological framework is proposed in order to integrate the emergentist thought with systemic studies on biological autonomy, which are focused on the role of organization. Particular attention will be paid to the role of the observer's activity, especially: (a) the different operations he performs in order to identify the pertinent elements at each descriptive level, and (b) the relationships between the different models he builds from them. According to the approach sustained here, organization will be considered as the result of a specific operation of identification of the relational properties of the functional components of a system, which do not necessarily coincide with the intrinsic properties of its structural constituents. Also, an epistemological notion of emergence-that of "complex emergence"-will be introduced, which can be defined as the insufficiency, even in principle, of a single descriptive modality to provide a complete description of certain classes of systems.This integrative framework will allow us to deal with two issues in biological and emergentist studies: (1) distinguishing the autonomy proper of living systems from some physical processes like those of structural stability and pattern generation, and (2) 2 reconsidering the notion of downward causation not as a direct or indirect influence of the whole on its parts, but instead as an epistemological problem of interaction between descriptive domains in which the concept of organization proposed and the observational operations related to it play a crucial role.Keywords: autopoiesis; biological autonomy; complex emergence; downward causation; organization; pattern generation.
"We are inheritors of categorized knowledge; therefore we inherit a world view that consists of parts strung together, rather than of wholes regarded through different sets of filters" (S. Beer, 1980)
IntroductionThe biological processes of realization of a living unity that exhibits a certain degree of autonomy with respect to its environment are characterized by the production of a stableshape. An operation of self-distinction from the medium due to the generation of a physical boundary (Varela et al. 1974;Maturana and Varela, 1980) gives rise to a separation between the internal and the external environment of the organism.These, however, do not constitute the only phenomena of production of higher-level patterns-stable in time and with respect to external perturbations-that we can identify in the natural world. Similar properties are also exhibited by some physico-chemical systems like the processes of molecular self-assembly, Benard's cells and chemical clocks, explained by the thermodynamics of dissipative structures (Nicolis and Prigogine 1977;Prigogine and Stengers 1979). Similar results can be obtained also in the computational domain through appropriate simulations. For this reason, the very notions of pattern and of structural stability, although they constitute a relevant aspect 3 of the biological phenomenology, cannot ...