Philippe Huneman

This paper proposes an interpretative framework for some developments of the philosophy of nature after Kant. I emphasize the critique of the economy of nature in the Critique of judgement. I argue that it resulted in a split of a previous structure of knowledge; such a structure articulated natural theology and natural philosophy on the basis of the consideration of the order displayed by living beings, both in their internal organisation and their ecological distribution. The possibility of a philosophical discourse on nature that is neither mathematical nor theological stemmed from this shift. I call “hermeneutics of nature” such a program, since it aims at unpacking an immanent meaning in nature that is not explicated by the sciences of nature, which are dealing with the laws of nature. The Naturphilosophie, undertaken by Schelling, as well as the philosophies of nature of Hegel and Schopenhauer, are several realizations of this program. I highlight the structural traits that they share, such as a pregnant sense of conflicts in nature, an emphasis on the riddles of gender, and above all a prominent status given to organisms as a clue to the meaning of nature. Finally, I try to sketch the ramifications of this hermeneutics of nature in contemporary philosophy, especially phenomenology, and argue that the coming philosophy of nature, as shown by the attempts of syntheses between phenomenology and ecology, seems to depart from this hermeneutical program.

Besides mechanistic explanations of phenomena, which have been seriously investigated in the last decade, biology and ecology also include explanations that pinpoint specific mathematical properties as explanatory of the explanandum under focus. Among these structural explanations, one finds topological explanations, and recent science pervasively relies on them. This reliance is especially due to the necessity to model large sets of data with no practical possibility to track the proper activities of all the numerous entities. The paper first defines topological explanations and then explains why topological explanations and mechanisms are different in principle. Then it shows that they are pervasive both in the study of networks—whose importance has been increasingly acknowledged at each level of the biological hierarchy—and in contexts where the notion of selective neutrality is crucial; this allows me to capture the difference between mechanisms and topological explanations in terms of practical modelling practices. The rest of the paper investigates how in practice mechanisms and topologies are combined. They may be articulated in theoretical structures and explanatory strategies, first through a relation of constraint, second in interlevel theories, or they may condition each other. Finally, I explore how a particular model can integrate mechanistic informations, by focusing on the recent practice of merging networks in ecology and its consequences upon multiscale modelling.

In questo articolo, dapprima presento una sorta di cartografia dei differenti significati e usi di “biodiversità”, facendo emergere alcuni temi ricorrenti. In secondo luogo, per introdurre alcuni di questi temi, metto in luce due o tre elementi rilevanti nel processo attraverso il quale il termine è venuto a rivestire un ruolo decisivo sia per gli scienziati dei diversi ambiti di studio legati all’ecologia, sia per i politici e i legislatori implicati nelle politiche che governano le conseguenze delle azioni dell’uomo sulla natura. Nelle conclusioni suggerisco che, nella stessa maniera in cui la cognizione viene ora vista come “cognizione situata” perché l’agente non è separato dal mondo dove la sua cognizione ha luogo ed effetto, la biodiversità è qualcosa come un “concetto situato”, un concetto che non ottiene la sua legittimità da modelli, elaborazioni teoriche e dati empirici, bensì dalla consapevolezza che qualcosa è alterato nel mondo biologico in quanto tale.

This volume handles in various perspectives the concept of function and the nature of functional explanations, topics much discussed since two major and conflicting accounts have been raised by Larry Wright and Robert Cummins’s papers in the 1970s. Here, both Wright’s ”etiological theory of functions’ and Cummins’s ”systemic’ conception of functions are refined and elaborated in the light of current scientific practice, with papers showing how the ”etiological’ theory faces several objections and may in reply be revisited, while its counterpart became ever more sophisticated, as researchers discovered fresh applications for it. Relying on a firm knowledge of the original positions and debates, this volume presents cutting-edge research evincing the complexities that today pertain in function theory in various sciences. Alongside original papers from authors central to the controversy, work by emerging researchers taking novel perspectives will add to the potential avenues to be followed in the future. Not only does the book adopt no a priori assumptions about the scope of functional explanations, it also incorporates material from several very different scientific domains, e.g. neurosciences, ecology, or technology. In general, functions are implemented in mechanisms; and functional explanations in biology have often an essential relation with natural selection. These two basic claims set the stage for this book’s coverage of investigations concerning both ”functional’ explanations, and the ”metaphysics’ of functions. It casts new light on these claims, by testing them through their confrontation with scientific developments in biology, psychology, and recent developments concerning the metaphysics of realization. Rather than debating a single theory of functions, this book presents the richness of philosophical issues raised by functional discourse throughout the various sciences.​ Content Level » Research Keywords » Causal role theory of functions - Determination of content - Ecosystem selection - Etiological theory of function - Evolutionary biology - Functional explanations - Historical concepts in biology - Larry Wright - Neurosciences - New mechanism - Selected effects functions - Systemic theory of functions - William Wimsatt Related subjects » Anthropology & Archaeology - Epistemology & Philosophy of Science - Evolutionary & Developmental Biology - Neuroscience - Philosophy TABLE OF CONTENTS Introduction.- Section I. Biological functions and functional explanations: genes, cells, organisms and ecosystems.- Part 1.A. Functions, organization and development in life sciences.- Chapter 1. William C. Wimsatt. Evolution and the Stability of Functional Architectures.- Chapter 2. Denis M. Walsh. Teleological Emergence: The Autonomy of Evo-Devo.- Chapter 3. Jean Gayon. Does oxygen have a function, or: where should the regress of biological functions stop?.- Part 1.B. Functional pluralism for biologists? Chapter 4. Frédéric Bouchard. How ecosystem evolution strengthens the case for functional pluralism.- Chapter 5. Robert N. Brandon. A general case for functional pluralism.- Chapter 6. Philippe Huneman. Weak realism in the etiological theory of functions.- Section 2. Section II. Psychology, philosophy of mind and technology: Functions in a man’s world.- Part 2.A. 2A. Metaphysics, function and philosophy of mind.- Chapter 7. Carl Craver. Functions and Mechanisms in Contemporary Neuroscience.- Chapter 8. Carl Gillett. Understanding the sciences through the fog of ”functionalism.’.- 2.B. Philosophy of technology, design and functions.- Chapter 9. Fran¸ coise Longy. Artifacts and Organisms: A Case for a New Etiological Theory of Functions.- Chapter 10. Pieter Vermaas and Wybo Houkes. Functions as Epistemic Highlighters: An Engineering Account of Technical, Biological and Other Functions.- Epilogue.- Larry Wright. Revising teleological explanations: reflections three decades on.

ArgumentThis paper considers how certain ideas elaborated by the Montpellier vitalists influenced the rise of French alienism, and how those ideas framed the changing view of passions during the eighteenth century. Various kinds of evidence attest that the passions progressively became the focus of medical attention, rather than a theme specific to moralists and philosophers. Vitalism conceived of organisms as animal economies understandable through the transformations of the various modes of their sensibility. This allowed some physicians to define a kind of anthropological program, which viewed human beings as a whole, with no distinction betweenle physiqueandle moral. The passions in this context became a specific alteration of the animal economy. Such an anthropological program was the framework within which Pinel understood the various classes of madness as disease – those troubles being general disturbances of the animal economy, which presupposed a knowledge of the latter, to be addressed and cured. In this view, and departing from the vitalist writers with regard to the specificity of mental illness as such, Pinel proposed another conception of the relations between passions and madness, and elaborated a general view of their status in etiology and therapeutics; those views were taken up and systematized by Esquirol, who finally defined a new kind of continuity between passion and madness, demonstrated by the idea that some kinds of madness that he called “monomania” had as a principle a “ruling passion” that the alienist, this novel medical specialist, had to unveil and address.

Biological individuals are usually defined by evolutionists through a reference to natural selection. This article looks for a concept of individuality that would hold at the same time for organisms and for communities or ecosystems, the latter being unaffected by natural selection. In the wake of Simon’s notion of “quasi-independence,” I elaborate a concept of “weak individuality” defined by probabilistic connections between sub-entities, read off our knowledge of their interactions. This formal scheme of connections allows one to infer what are the individuals in the domain addressed by the theory of the interactions. The article argues that if ecosystems do not have strong individuality, they still possess a weak individuality, ecological theories providing the values of the variables in the formula for individuality.

I challenge the usual approach of defining emergence in terms of properties of wholes “emerging” upon properties of parts. This approach indeed fails to meet the requirement of nontriviality, since it renders a bunch of ordinary properties emergent; however, by defining emergence as the incompressibility of a simulation process, we have an objective meaning of emergence because the difference between the processes satisfying the incompressibility criterion and the other processes does not depend on our cognitive abilities. Finally, this definition fulfills the nontriviality and the scientific‐adequacy requirements better than the combinatorial approach, emergence here being a predicate of processes rather than of properties. †To contact the author, please write to: Institut d'Histoire et de Philosophie des Sciences et des Techniques (CNRS/Université Paris I Sorbonne), 13 rue du Four 75006, Paris; e‐mail: [email protected].

This paper uses formal Darwinism as elaborated by Alan Grafen to articulate an explanatory pluralism that casts light upon two strands of controversies running across evolutionary biology, viz., the place of organisms versus genes, and the role of adaptation. Formal Darwinism shows that natural selection can be viewed either physics-style, as a dynamics of alleles, or in the style of economics as an optimizing process. After presenting such pluralism, I argue first that whereas population genetics does not support optimization, optimality can still be taken as a default hypothesis when modeling evolutionary processes; and second, that organisms have an explanatory role in evolutionary theory, since they are involved in the economic perspective of optimization. Finally, in order to ask whether the Modern Synthesis can indeed provide a theory of organisms, I apply a Kantian-inspired theoretical view of organisms (underlying much developmental modeling), according to which they are both designed entities and subjects of intrinsic circular processes involving the whole organism and its parts. I first show that the design aspect is accountable for in terms of the Modern Synthesis understood in the formal Darwinism framework. I then question whether the latter aspect of organisms can also be ultimately captured in the same framework, and to this purpose devise an empirical test relying on an assessment of the relative weight of genetic elements in developmental and functional gene regulatory networks.

This paper interprets the two pages devoted in the Critique of Pure Reason to a critique of Leibniz’s view of organisms as infinitely organized machines. It argues that this issue of organisms represents a crucial test-case for Kant in regard to the conflicting notions of space, continuity and divisibility held by classical metaphysics and by criticism. I first present Leibniz’s doctrine and its justification. In a second step, I explain the general reasoning by which Kant defines the problem of the Antinomies, and then I specify the case of the Second Antinomy. Then, I ask why the organism raises specific issues for Kant’s solution of the Second Antinomy, and why it sheds light on the nature of Leibniz’s metaphysical assumptions about organisms. The last section considers this critique of Leibniz from the perspective of Kant’s future theory of organisms in the third Critique, specifying its role in the development of a Kantian view of organisms with regard to the changes occurring at the same time in the life sciences.

I investigate the relationship between adaptation, as defined in evolutionary theory through natural selection, and the concept of emergence. I argue that there is an essential correlation between the former, and “emergence” defined in the field of algorithmic simulations. I first show that the computational concept of emergence (in terms of incompressible simulation) can be correlated with a causal criterion of emergence (in terms of the specificity of the explanation of global patterns). On this ground, I argue that emergence in general involves some sort of selective processes. Finally, I show that a second criterion, concerning novel explanatory regularities following the emergence of a pattern, captures the robustness of emergence displayed by some cases of emergence (according to the first criterion). Emergent processes fulfilling both criteria are therefore exemplified in evolutionary biology by some so-called “innovations”, and mostly by the new units of fitness or new kinds of adaptations (like sexual reproduction, multicellular organisms, cells, societies) sometimes called “major transitions in evolution”, that recent research programs (Maynard-Smith and Szathmary 1995 ; Michod 1999 ) aims at explaining.

This paper argues that besides mechanistic explanations, there is a kind of explanation that relies upon “topological” properties of systems in order to derive the explanandum as a consequence, and which does not consider mechanisms or causal processes. I first investigate topological explanations in the case of ecological research on the stability of ecosystems. Then I contrast them with mechanistic explanations, thereby distinguishing the kind of realization they involve from the realization relations entailed by mechanistic explanations, and explain how both kinds of explanations may be articulated in practice. The second section, expanding on the case of ecological stability, considers the phenomenon of robustness at all levels of the biological hierarchy in order to show that topological explanations are indeed pervasive there. Reasons are suggested for this, in which “neutral network” explanations are singled out as a form of topological explanation that spans across many levels. Finally, I appeal to the distinction of explanatory regimes to cast light on a controversy in philosophy of biology, the issue of contingence in evolution, which is shown to essentially involve issues about realization

This paper investigates the conception of causation required in order to make sense of natural selection as a causal explanation of changes in traits or allele frequencies. It claims that under a counterfactual account of causation, natural selection is constituted by the causal relevance of traits and alleles to the variation in traits and alleles frequencies. The “statisticalist” view of selection (Walsh, Matthen, Ariew, Lewens) has shown that natural selection is not a cause superadded to the causal interactions between individual organisms. It also claimed that the only causation at work is those aggregated individual interactions, natural selection being only predictive and explanatory, but it is implicitly committed to a process-view of causation. I formulate a counterfactual construal of the causal statements underlying selectionist explanations, and show that they hold because of the reference they make to ecological reliable factors. Considering case studies, I argue that this counterfactual view of causal relevance proper to natural selection captures more salient features of evolutionary explanations than the statisticalist view, and especially makes sense of the difference between selection and drift. I eventually establish equivalence between causal relevance of traits and natural selection itself as a cause

‘Statisticalists’ argue that the individual interactions of organisms taken together constitute natural selection. On this view, natural selection is an aggregated effect of interactions rather than some added cause acting on populations. The statisticalists’ view entails that natural selection and drift are indistinguishable aggregated effects of interactions, so that it becomes impossible to make a difference between them. The present paper attempts to make sense of the difference between selection and drift, given the main insights of statisticalism; basically, it will disentangle the various kinds of indistinguishability between selection and drift that happen within biology, by examining the epistemological and metaphysical nature of the distinction between selection and drift. It will be based on a ‘difference-making account’ of selection. The first section will explicate the inscrutability of selection and drift, its various types in the statisticalist writings, and its implications. The second section specifies concepts of natural selection and drift in the difference making account of selection I am using, and shows that one can derive from this the statistical signatures of selection and drift. On this basis I focus on one sort of indistinguishability issue about selection and drift, which I call epistemic opacity, and explain why it mostly affects small populations. The last section explains why epistemic opacity does not raise an genuine epistemic problem for evolutionary biology

This chapter surveys the philosophical problems raised by the two Darwinian claims of the existence of a Tree of a life, and the explanatory power of natural selection. It explores the specificity of explanations by natural selection, emphasizing the high context-dependency of any process of selection. Some consequences are drawn about the difficulty of those explanations to fit a nomological model of explanation, and the irreducibility of their historic-narrative dimension. The paper introduces to the debates about units of selection, stating the compelling force of genic selectionnism but highlighting some critiques. Then it addresses the limits of selectionist explanations : the compared status of selection, drift and phylogenetic inertia are investigated, and the debates over adaptationism are presented, with the aim of defining the varieties of adaptationisms as research programs. In order to assess the scope of natural selection, the chapter addresses weak and strong challenges to the Synthetic theory of evolution, both from paleontology (punctuated equilibria, Gould’s contingency thesis) and evolutionary theory of development. We finally sketch some consequences of evolutionary theory concerning philosophical questions about human nature, on the basis of the hypothesis of the universality of selectionist explanations: this part deals mostly with epistemology and psychology.