Hamilton introduced two conceptions of social fitness, which he called neighbour-modulated fitness and inclusive fitness. Although he regarded them as formally equivalent, a re-analysis of his own argument for their equivalence brings out two important assumptions on which it rests: weak additivity and actor's control. When weak additivity breaks down, neither fitness concept is appropriate in its original form. When actor's control breaks down, neighbour-modulated fitness may be appropriate, but inclusive fitness is not. Yet I argue that, despite its more (...) limited domain of application, inclusive fitness provides a distinctively valuable perspective on social evolution. (shrink)

The notion that natural selection is a process of fitness maximization gets a bad press in population genetics, yet in other areas of biology the view that organisms behave as if attempting to maximize their fitness remains widespread. Here I critically appraise the prospects for reconciliation. I first distinguish four varieties of fitness maximization. I then examine two recent developments that may appear to vindicate at least one of these varieties. The first is the ‘new’ interpretation of Fisher's fundamental theorem (...) of natural selection, on which the theorem is exactly true for any evolving population that satisfies some minimal assumptions. The second is the Formal Darwinism project, which forges links between gene frequency change and optimal strategy choice. In both cases, I argue that the results fail to establish a biologically significant maximization principle. I conclude that it may be a mistake to look for universal maximization principles justified by theory alone. A more promising approach may be to find maximization principles that apply conditionally and to show that the conditions were satisfied in the evolution of particular traits. (shrink)

Can octopuses feel pain and pleasure? What about crabs, shrimps, insects, or spiders? How do we tell whether a person unresponsive after severe brain injury might be suffering? When does a fetus in the womb start to have conscious experiences? Could there even be rudimentary feelings in miniature models of the human brain, grown from human stem cells? And what about AI? These are questions about the edge of sentience, and they are subject to enormous, disorienting uncertainty. The stakes are (...) immense, and neglecting the risks can have terrible costs. We need to err on the side of caution, yet it’s often far from clear what ‘erring on the side of caution’ should mean in practice. When are we going too far? When are we not doing enough? The Edge of Sentience presents a comprehensive precautionary framework designed to help us reach ethically sound, evidence-based decisions despite our uncertainty. (shrink)

The hunt for a biologically respectable definition for the folk concept of innateness is still on. I defend Ariew’s Canalization account of innateness against the criticisms of Griffiths and Machery, but highlight the remaining flaws in this proposal. I develop a new analysis based on the notion of environmental induction. A trait is innate, I argue, iff it is not environmentally induced. I augment this definition with a novel analysis of environmental induction that draws on the contrastive nature of causal (...) explanation. Whether a trait is environmentally induced, I argue, depends on a context sensitive contrast class. I argue that a “Noninduction” analysis of innateness allows the concept an explanatory role in biology. I show how my proposal co-opts the successes of the Canalization account whilst avoiding its pitfalls, and I account for why biologists associate a range of disparate properties with innateness. (shrink)

Skyrms, building on the work of Dretske, has recently developed a novel information-theoretic account of propositional content in simple signalling systems. Information-theoretic accounts of content traditionally struggle to accommodate the possibility of misrepresentation, and I show that Skyrms’s account is no exception. I proceed to argue, however, that a modified version of Skyrms’s account can overcome this problem. On my proposed account, the propositional content of a signal is determined not by the information that it actually carries, but by the (...) information that it would carry at the nearest separating equilibrium of the underlying evolutionary dynamics. I show that this amended account yields reasonable ascriptions of false propositional content in a well-known formal model of the evolution of communication , and close with a discussion of the serious but perhaps not insuperable difficulties we face in applying the account to examples of signalling in the real world. (shrink)

Contemporary, technoscientific capitalism is characterized by the configuration of a range of “things” as assets or capitalized property. Accumulation strategies have changed as a result of this assetization process. Rather than entrepreneurial strategies based on commodity production, technoscientific capitalism is increasingly underpinned by rentiership or the appropriation of value through ownership and control rights, monopoly conditions, and regulatory or market devices and practices. While rentiership is often presented as a negative phenomenon in both neoclassical and Marxist political economy literatures—and much (...) in between—in this paper, I conceptualize rentiership as a technoeconomic practice and process framed by insights from science and technology studies. So, rather than a problematic “side effect” of capitalism, the concept of rentiership enables us to understand how different forms of value extraction constitute, and are constituted by, different forms of technoscience. This allows STS to contribute a distinctive analytical approach to ongoing debates in political economy about economic rents and rent-seeking. (shrink)

Hamilton’s theory of kin selection is the best-known framework for understanding the evolution of social behavior but has long been a source of controversy in evolutionary biology. A recent critique of the theory by Nowak, Tarnita, and Wilson sparked a new round of debate, which shows no signs of abating. In this overview, we highlight a number of conceptual issues that lie at the heart of the current debate. We begin by emphasizing that there are various alternative formulations of Hamilton’s (...) rule, including a general version, which is always true; an proximate version, which assumes weak selection; and a special version, which demands other restrictive assumptions. We then examine the relationship between the neighbor-modulated fitness and inclusive fitness approaches to kin selection. Finally, we consider the often-strained relationship between the theories of kin and multilevel selection. (shrink)

This book is about the liberation of the concept of life from the bondage fashioned by the interpreters of life ever since biology began, and about the liberation of the life of humans and non-humans alike from the bondage of social structures and behaviour, which now threatens the fullness of life's possibilities if not survival itself. It falls into a tradition of writings about human problems from a perspective informed by biology. It rejects the mechanistic model of life dominant in (...) the Western world and develops an alternative 'ecological model' which is applicable to the life of the cell and the life of the human community. For the first time it brings together in one work the insights of modern biology with those of a modern holistic philosophy and a liberal theology in a way which challenges conventional approaches to science, agriculture, sociology, politics, economics, development and liberation movements. (shrink)

Human neural organoid research is advancing rapidly. As Greely notes in the target article, this progress presents an “onrushing ethical dilemma.” We can’t rule out the possibility that suff...

In debates about animal sentience, the precautionary principle is often invoked. The idea is that when the evidence of sentience is inconclusive, we should “give the animal the benefit of the doubt” or “err on the side of caution” in formulating animal protection legislation. Yet there remains confusion as to whether it is appropriate to apply the precautionary principle in this context, and, if so, what “applying the precautionary principle” means in practice regarding the burden of proof for animal sentience. (...) Here I construct a version of the precautionary principle tailored to the question of animal sentience together with a practical framework for implementing it. I explain and defend the key features of this framework, argue that it is well-aligned with current practice in animal welfare science, and consider and reject a number of influential counterarguments to the use of precautionary reasoning in this area. (shrink)

The article attempts to show some limitations to reductive accounts in science and philosophy of body-mind relations, experience and skill. Extensive literature has developed in analytic philosophy of mind recently due to new technology and theories in the neurosciences. In the sporting sciences, there are also attempts to reduce experiences and skills to biology, mechanics, chemistry and physiology. The article argues there are three fundamental problems for reductive accounts that lead to an explanatory gap between the reduction and the conscious (...) experience. First, reductive accounts deal with objective observations; conscious experiences are subjective. Second, subjective experience seems difficult to identify with physical events described by chemistry, biology, mechanics or neurophysiology. Finally, sport involves knowing how and knowing how is also difficult to reduce to propositional knowledge, which is the reductive scientific/philosophical project. The article argues that sport provides an excellent platform to better understand what is wrong with reductive analysis in body-mind relations, since both conscious experience and knowing how are fundamental to sport performance. (shrink)

From mitochondria to meerkats, the natural world is full of spectacular examples of social behaviour. In the early 1960s W. D. Hamilton changed the way we think about how such behaviour evolves. He introduced three key innovations - now known as Hamilton's rule, kin selection, and inclusive fitness - and his pioneering work kick-started a research program now known as social evolution theory. This is a book about the philosophical foundations and future prospects of that program. [Note: only the Introduction (...) is available to download.]. (shrink)

One key aim of Grafen’s Formal Darwinism project is to formalize ‘modern biology’s understanding and updating of Darwin’s central argument’. In this commentary, I consider whether Grafen has succeeded in this aim.

It would be unwise to dismiss the possibility of human brain organoids developing sentience. However, scepticism about this idea is appropriate when considering current organoids. It is a point of consensus that a brain-dead human is not sentient, and current organoids lack a functioning brainstem. There are nonetheless troubling early warning signs, suggesting organoid research may create forms of sentience in the near future. To err on the side of caution, researchers with very different views about the neural basis of (...) sentience should unite behind the “brainstem rule”: if a neural organoid develops or innervates a functioning brainstem that regulates arousal and leads to sleep-wake cycles, then it is a sentience candidate. If organoid research leads to the creation of sentience candidates, a moratorium or indefinite ban on the creation of the relevant type of organoid may be appropriate. A different way forward, more consistent with existing approaches to animal research, would be to require ethical review and harm-benefit analysis for all research on sentience candidates. (shrink)

Miller, Truog, and Brock have recently argued that the “dead donor rule,” the requirement that donors be determined to be dead before vital organs are procured for transplantation, cannot withstand ethical scrutiny. In their view, the dead donor rule is inconsistent with existing life-saving practices of organ transplantation, lacks a cogent ethical rationale, and is not necessary for maintenance of public trust in organ transplantation. In this paper, the second of these claims will be evaluated. (The first and third are (...) not addressed.) The claim that the dead donor rule lacks a cogent ethical rationale will be shown to be an expression of the contemporary rejection of the moral significance of the traditional distinction between killing and allowing to die. The moral significance of this traditional distinction, and the associated norm that doctors should not kill their patients, will be defended, and this critique of it shown to be unsuccessful. (shrink)

A crucially important part of the biosphere – the virosphere – is too often overlooked. Inclusion of the virosphere into the global picture of protein structure space reveals that 63 protein domain superfamilies in viruses do not have any structural and evolutionary relatives in modern cellular organisms. More than half of these have functions which are not virus‐specific and thus might be a source of new folds and functions for cellular life. The number of viruses on the planet exceeds that (...) of cells by an order of magnitude and viruses evolve up to six orders of magnitude faster. As a result, cellular species are subject to a constitutive ‘flow‐through’ of new viral genetic material. Due to this and the relaxed evolutionary constraints in viruses, the transfer of domains between host‐to‐virus could be a mechanism for accelerated protein evolution. The virosphere could be an engine for the genesis of protein structures, and may even have been so before the last universal common ancestor of cellular life. (shrink)

This is a response to the nine commentaries on our target article “Unlimited Associative Learning: A primer and some predictions”. Our responses are organized by theme rather than by author. We present a minimal functional architecture for Unlimited Associative Learning that aims to tie to together the list of capacities presented in the target article. We explain why we discount higher-order thought theories of consciousness. We respond to the criticism that we have overplayed the importance of learning and underplayed the (...) importance of spatial modelling. We decline the invitation to add a negative marker to our proposed positive marker so as to rule out consciousness in plants, but we nonetheless maintain that there is no positive evidence of consciousness in plants. We close by discussing how UAL relates to development and to its material substrate. (shrink)

The Evolution of the Sensitive Soul is a landmark attempt to make progress on the problem of animal consciousness. Ginsburg and Jablonka propose a general cognitive marker of the presence of consciousness: Unlimited Associative Learning. They use this marker to defend a generous view about the distribution of consciousness in the natural world, on which a capacity for conscious experience is common to all vertebrates, many arthropods and some cephalopod molluscs. They use this inferred distribution to defend a view about (...) the evolution of consciousness, on which it has evolved at least three times, first evolved at around the time of the Cambrian explosion, and was in fact the driving force behind that explosion. In this essay review, I reflect critically on the book’s central idea: the proposal that Unlimited Associative Learning provides a general marker of consciousness. (shrink)

A conversation between three characters: Credulus, who thinks conscious mental states can and should be attributed to other animals without any need for scientific inquiry; Skepticus, a critic with behaviorist leanings; and Moderus, who sees a middle path in the emerging science of animal consciousness.

Around the world, practitioners and academics are engaging in the rise of regenerative farming. On the margins of the predominant farming system, and often with little support and acknowledgement, regenerative farming is surprisingly persistent and represents a radical response to industrialization, ecological crises and alienation. This study uses feminist theories to grasp farmers’ regenerative experiences and explores how dialogical methodologies can create collective thinking among farmers and between academia and practice. The study is based on dialogues and iterative writing between (...) three female researchers and two female regenerative farmers in Denmark in which we explore regenerative farming practices, female perspectives, feminist (more-than-human) care, and the sustainability crises we are facing today and in the future. The exchange of thoughts provides insights into what it is to be human in farming, including more-than-human relationships, as well as reflections on composting as a reproductive practice, and the (quiet) revolutionary potential of regenerative farming. Thus, we experience how creating collective thinking about common concerns across academia and practice can entail feelings of being part of a community as well as involve actual consequences and risks. Finally, it reminds us that sharing fragility by laying bare our work (and thoughts) as both researchers and practitioners allows for careful dialogues and valuable insights. (shrink)

Various results show the ‘formal equivalence’ of kin and group selectionist methodologies, but this does not preclude there being a real and useful distinction between kin and group selection processes. I distinguish individual- and population-centred approaches to drawing such a distinction, and I proceed to develop the latter. On the account I advance, the differences between kin and group selection are differences of degree in the structural properties of populations. A spatial metaphor provides a useful framework for thinking about these (...) differences: kin and group selection may be conceptualized as large, overlapping regions of K - G space. I then consider some implications of the account, defend it from possible objections, and further argue that the structural features characteristic of both kin and group selection may recur at multiple levels of biological organization. (shrink)

This corrects a single typographical error in the article "Science and policy in extremis: the UK’s initial response to COVID‑19".

We should distinguish between the apparent source of a norm and the scope of the norm's satisfaction conditions. Wide-scope social norms need not be externalised, and externalised social norms need not be wide in scope. Attending to this distinction leads to a problem for Stanford: The adaptive advantages he attributes to externalised norms are actually advantages of wide-scope norms.

The paper observes the relation of fictional/figural discourses to language-games that are active in reality. The starting point for the discussion is the "theory of two contexts" by Arne Merilai, the basic idea of which is distinguishing between fictional and factual speech acts on the basis of their different contexts of truth value. It seems to be justified to expand it to the whole sphere of figurality. After that the paper views John Gibson’s Wittgensteinian theory of fiction as an archive (...) of standards/etalons of languagegames and a laboratory of reshaping and creating these standards. The fictional/figural sphere can be described as the area of possibility that creates language-games of reality via poiesis. The article describes some cases where the logic of figural sphere is introduced directly into real political discourse, forcing the reality to act according to the rules of art, but thus excluding the ethical freedom of our real-life language-games. It means that there exists a certain principle of metonymy between the figural sphere as archive and laboratory of standards, on the one hand, and the language-games of reality, on the other hand, while violation of that principle involves a danger of losing the reconciliatory power of fictionality/figurality that, according to Jaak Tomberg, is a significant function of literature as a human practice. There are several possibilities for further analysis: the cases where the danger can be turned into something positive; the problems and gains of art forms that use techniques of intrusion into reality; the question if such violation of the "principle of metonymy" is specifically connected with modernist avant-gardism or not. (shrink)

Annotation. "What is life? What does it means to be alive? Is the Earth a super-organism? Is God necessary? In Biology and the Riddle of Life Charles Birch confronts these fundamental questions at a time when such topics as genetic engineering, cloning and ecology have been prominent in the news. Birch confronts the impression that modern biology has answers to all that there is to be known about life. We need to move towards an understanding of living creatures (...) as subjects, and not only as objects, in order to probe life's hidden secrets - what it is to be alive, what it is to experience pain, and what it is to be in love. The answer must include the meaning of life for us as individuals. Birch proposes a new perspective to bring subject and object together. This is the black box he has opened."--BOOK JACKET. Title Summary field provided by Blackwell North America, Inc. All Rights Reserved. (shrink)

A book for thinkers young and old, Befuddled is a journey back in time to explore the lives, legends and ideas of ancient philosophers. Theories on the origin of the universe, the nature of the mind, and much more are presented alongside bizarre stories of mad emperors and talking skulls. Featuring an array of iconic figures, including Socrates, Pythagoras and the Buddha, Befuddled superbly illustrates how lives devoted to confusion and wonder not only give rise to fascinating ideas about reality, (...) they also brim with wild moments and remarkable tales. Author David Birch invites you to add your own life to the collection. With questions and activities designed to start you on your own extraordinary explorations, Befuddled will help you discover your own powers of thought while you experience for yourself the freaky thrills of befuddlement. (shrink)

The essay attempts to delineate how Maurice Merleau-Ponty’s phenomenology of perception can be applied to theories of sign processes, and how it reworks the framework of the phenomenalist conception of communication. His later philosophy involved a reformulation of subjectivity and a resolution of the subject/object dualism. My claim is that this non-reductionist theory of perception reveals a different view of nature as we experience it in an expressive and meaningful interaction. The perspective that another living being has and communicates entails (...) a form of depth, the invisible dimension of the visible or audible. These two aspects of perception and dialogue are intertwined in a dialectic of presence and absence, so that sense arises in the perceptual field rather than in subjectivity. This, I argue, is the most fundamental result of his theory. The origination of meaning in the workings of the chiasm of visible and invisible in perception opens up an objective sense of intersubjective nature. The essay also deals with the role of the phenomenological reduction; a suspension of beliefs and existence claims in experience. The reduction enables us to take a step back and look more closely at our understanding of nature in light of the historical and cultural influence on our thinking. (shrink)

This essay was prompted by the question of how Hathayoga, literally 'the Yoga of force', acquired its name. Many Indian and Western scholars have understood the 'force' of Haṭhayoga to refer to the effort required to practice it. Inherent in this understanding is the assumption that Haṭhayoga techniques such as _praṇayama_ are strenuous and may even cause pain. Others eschew the notion of force altogether and favor the so-called 'esoteric' definition of Haṭhayoga and moon in the body). This essay examines (...) these interpretations in light of definitions of _haṭhayoga_ and the adverbial uses of _haṭha_ in Sanskrit Yoga texts that predate the fifteenth-century _Hathapradipika_. (shrink)

I briefly present and motivate a ‘skill hypothesis’ regarding the evolution of human normative cognition. On this hypothesis, the capacity to internally represent action-guiding norms evolved as a solution to the distinctive problems of standardizing, learning and teaching complex motor skills and craft skills, especially skills related to toolmaking. We have an evolved cognitive architecture for internalizing norms of technique, which was then co-opted for a rich array of social functions. There was a gradual expansion of the normative domain, with (...) ritual playing an important role in bridging the gap between concrete, enacted norms and general, abstract norms, such as kinship norms. I conclude by stating nine predictions arising from the skill hypothesis. (shrink)

One of the central, abiding, and unresolved questions in environmental ethics has focused on the criterion for moral considerability or practical respect. In this essay, I call that question itself into question and argue that the search for this criterion should be abandoned because (1) it presupposes the ethical legitimacy of the Western project of planetary domination, (2) the philosophical methods that are andshould be used to address the question properly involve giving consideration in a root sense to everything, (3) (...) the history of the question suggests that it must be kept open, and (4) our deontic experience, the original source of ethical obligations, requires approaching all others, of all sorts, with a mindfulness that is clean of any a priori criterion of respect and positive value. The good work that has been doneon the question should be reconceived as having established rules for the normal, daily consideration of various kinds of others. Giving consideration in the root sense should be separated from giving high regard or positive value to what is considered. Overall, in this essay I argue that universal consideration—giving attention to others of all sorts, with the goal of ascertaining what, if any, direct ethical obligations arise from relating with them—should be adopted as one of the central constitutive principles of practical reasonableness. (shrink)

How does consciousness vary across the animal kingdom? Are some animals ‘more conscious’ than others? This article presents a multidimensional framework for understanding interspecies variation in states of consciousness. The framework distinguishes five key dimensions of variation: perceptual richness, evaluative richness, integration at a time, integration across time, and self-consciousness. For each dimension, existing experiments that bear on it are reviewed and future experiments are suggested. By assessing a given species against each dimension, we can construct a consciousness profile for (...) that species. On this framework, there is no single scale along which species can be ranked as more or less conscious. Rather, each species has its own distinctive consciousness profile. (shrink)