Excerpt: As a young man worrying about the fundamental questions of philosophy, metaphysics, and epistemology, McCulloch set himself the goal of developing an “experimental epistemology”: how can one really understand the mind in terms of the brain? More particularly, he sought to discover “A Logical Calculus Immanent in Nervous Activity.” The present paper will seek to provide some sense of McCulloch’s search for the logic of the nervous system, but will also show that his papers contain contributions to experimental epistemology which provide great insight into the mechanisms of nervous system function without fitting into the mold of a logical calculus. Moreover, McCulloch was not only a scientist but also a storyteller, poet, and memorable “character. ” I will thus interleave a number of characteristic anecdotes into the more objective attempts at scientific history that follow.

This paper is a discussion of the sustainability of a concept of “world” compatible with the “operative constructivism” and the operative conception of observation of systems theory of according to Niklas Luhmann. The paper scrutinizes the concepts of observation of H. von Foerster, H. Maturana, G. Günther and N. Luhmann, providing the general framework of “operative constructivism.” Particularly, the paper will focus on N. Luhmann’s understanding of the role of observation in the constitution of the self-reference of the social systems of the modern society. The case of the “systems of art” will be briefly inspected. What place shall we concede to the idea of an “objective” world, according to the systems theory? Are systems “objective”? According to N. Luhmann, for the description of systems only operations are “objective.” However, an operation is not an entity, which means that we need to depict a new kind of “objects,” very different from the ’thing-objectivity” of the ancient metaphysics and different from the Cartesian concept of “res.” What does objectivity mean according to systems theory? This question was at stake in the formulation of N. Luhmann’s Die Gesellschaft der Gesellschaft: Society is “weder Subjekt noch Objekt.” This paper attempts to address this formula. Relevance: The paper deals with the epistemological explanation of second-order observations in social systems according to Niklas Luhmann’s systems theory. It clarifies the world vision of the constructivism movement.

The course on nature coincides with the re-working of Merleau-Ponty’s breakthrough towards an ontology and therefore plays a primordial role. The appearance of an interrogation of nature is inscribed in the movement of thought that comes after the Phenomenology of Perception. What is at issue is to show that the ontological mode of the perceived object – not the unity of a positive sense but the unity of a style that shows through in filigree in the sensible aspects has a universal meaning, that the description of the perceived world can give way to a philosophy of perception and therefore to a theory of truth. The analysis of linguistic expression to which the philosophy of perception leads opens out onto a definition of meaning as institution, understood as what inaugurates an open series of expressive appropriations. It is this theory of institution that turns the analysis of the perceived in the direction of a reflection on nature: the perceived is no longer the originary in its difference from the derived but the natural in its difference from the instituted. Nature is the “non-constructed, non-instituted,” and thereby, the source of expression: “nature is what has a sense without this sense having been posited by thought.”\\The first part of the course, which consists in a historical overview, must not be considered as a mere introduction. In fact, the problem of nature is brought out into the open by means of the history of Western metaphysics, in which Descartes is the emblematic figure. The problem consists in the duality at once unsatisfactory and unsurpassable – between two approaches to nature: the one which accentuates its determinability and therefore its transparency to the understanding; the other which emphasizes the irreducible facticity of nature and tends therefore to valorize the viewpoint of the senses. To conceive nature is to constitute a concept of it that allows us to “take possession” of this duality, that is, to found the duality. The second part of the course attempts to develop this concept of nature by drawing upon the results of contemporary science. Thus a philosophy of nature is sketched that can be summarized in four propositions: 1) the totality is no less real than the parts; 2) there is a reality of the negative and therefore no alternative between being and nothingmess; 3) a natural event is not assigned to a unique spatio-temporal localization; and 4) there is generality only as generativity.

The interactivist model has explored a number of consequences of process metaphysics. These include reversals of some fundamental metaphysical assumptions dominant since the ancient Greeks, and multiple further consequences throughout the metaphysics of the world, minds, and persons. This article surveys some of these consequences, ranging from issues regarding entities and supervenience to the emergence of normative phenomena such as representation, rationality, persons, and ethics.

Key words: metaphysics, process, supervenience, emergence, normativity, function, representation, action, rationality, modality, persons, ethics

Open peer commentary on the article “Towards a PL-Metaphysics of Perception: In Search of the Metaphysical Roots of Constructivism” by Konrad Werner. Upshot: I disclaim the need for a metaphysics for perception, in the sense of a general metaphysics, and suggest that the motivations for embarking on that project can be satisfied in an interesting way without any general metaphysical stock-taking, by appeal to phenomenological and enactive accounts of perception.

This article praises the development of second-order cybernetics by von Foerster, Maturana and Varela as an important step in deepening our understanding of the biopsychological foundation of the dynamics of cognition and communication. Luhmann’s development of the theory into the realm of social communication is seen as a necessary and important move. The differentiation between biological, psychological and socialcommunicative autopoiesis and the introduction of a technical concept of meaning is central. Furthermore, Varela’s development of Spencer Brown’s ‘Laws of Form’ from a dual to a triadic categorical basic structure is considered vital. Finally the paper shows that second-order cybernetics lacks explicit and ontological concepts of emotion, meaning and a concept of signs. C. S. Peirce’s theory is introduced for this purpose. It is then shown that both theories are triadic and second order, and therefore can be fruitfully fused to a cybersemiotics.

Key words: second-order cybernetics, cybersemiotics, philosophy of science, metaphysics, epistemology, ontology, autopoiesis, semiotics, information, cognition, observer

Luhmanian sociocybernetics is an observation of socio-communicative systems with a specific difference. It is a second order observation of observations understanding society as being ‘functionally differentiated’ into autonomous autopoietic subsystems or meaning worlds in the symbolic generalized media such as money, power, truth, love, art and faith. Only communication communicates and the social is communication. The social system creates products of meaning which do not represent an aggregation of the content of individuals’ minds. The bioand psychological autopoietic systems only establish boundary conditions for the sociocommunicative systems, they do not control the socio-communicative system in any way. Somehow the socio-communicative systems seem to develop on their own (by will?) although they have no body and no subject. The psychic system in Luhmann’s theory is thus not a Kantian or Husserlian transcendental ego in spite of Luhmann’s use of aspects of Husserl’s phenomenology (while at the same time destroying its philosophical frame). On the other hand, Luhmann works with an open ontology, combined with Spencer-Brown’s philosophy that making distinctions is what creates the difference between system and environment. Thus observation is basic to the theory-but where is the observer in the theoretical framework of system theory? The inspiration from Hegel is hidden here, where distinction, creation and evolution merge. Also, Hegel has been taken out of his metaphysical frame while Luhmann never took the time to finish his own. On the other hand, the father of the pragmatic triadic semiotic C. S. Peirce-also inspired by Hegel-explicitly confronted some of these problems. Like Bataille, Peirce sees a continuity between mind and matter and his Firstness contains pure feeling, meaning that there is also an inner experience aspect of matter. The article compares Luhmann’s and Spencer-Brown’s strategies with Peirce’s, the latter of whom built an alternative transdisciplinary theory of signification and communication based on a Panentheistic theory of knowing. Surprisingly it fits well with Spencer-Brown’s metaphysics, which makes it possible to establish a consistent foundation for system theory.

Review of: Andy Clark (1997) Being There: Putting Brain, Body and World Together Again. MIT Press: Cambridge, Massachusetts. xiii+267pp. ISBN 0-262-03240-6. Price: $US12 pbk.

Key words: artificial intelligence, dynamical systems theory, embodiment, autonomous agents, artificial life, mental repesentation, metaphysics.

Open peer commentary on the article “Towards a PL-Metaphysics of Perception: In Search of the Metaphysical Roots of Constructivism” by Konrad Werner. Upshot: In his target article, Werner proposes a metaphysical foundation for a radical constructivist epistemology that is nonetheless claimed to reconcile constructivism with some sort of realism. While acknowledging his success in demonstrating that constructivism without an external/internal dualism is suitable for his purposes, I shall argue that rejecting a distinction between epistemological and ontological issues makes it questionable whether PL-metaphysics can make constructivism compatible with realism.

Considers some of the puzzles and inconsistencies associated with Maturana’s metaphysics. We argue that such puzzles and inconsistencies largely arise out of difficulties of method and that the clue to their resolution is to be found in Aristotle’s solution to the same problem. Maturana’s claims are reconstructed in this light and in a way which does not materially affect their underlying theoretical grounds, i.e. autopoiesis theory, and dissolves the puzzles and inconsistencies referred to.

Key words: Cybernetics, Philosophy