Game theory is the mathematical study of strategy and conflict. It has wide applications in economics, political science, sociology, and, to some extent, in philosophy. Where rational choice theory or decision theory is concerned with individual agents facing games against nature, game theory deals with games in which all players have preference orderings over the possible outcomes of the game. This paper gives an informal introduction to the theory and a survey of applications in diverse (...) branches of philosophy. No criticism is reviewed. Game theory is shown at work in discussions about epistemological dependence, liberalism and efficiency, Hume’s concept of convention, morality and rationality, and distributive justice and egalitarianism. A guide to the literature provides hints at applications in collective intentionality, epistemology, ethics, history of philosophy, logic, philosophy of language, and political philosophy. (shrink)

Hobbes’s own justification for the existence of governments relies on the assumption that, without a government, our lives in the state of nature would result in a state of war of every man against every man. Many contemporary scholars have tried to explain why universal war is unavoidable in Hobbes’s state of nature by utilizing modern game theory. However, most game-theoretic models that have been presented so far do not accurately capture what Hobbes deems to (...) be the primary cause of conflict in the state of nature – which is uncertainty, rather than people’s egoistic psychology. Any game- theoretic model that does not incorporate uncertainty into the picture is, therefore, I claim, the wrong model. In this paper, I use Bayesian game-theory to show how universal conflict can break-out in the state of nature - even when the majority of the population would strictly prefer to cooperate and seek peace with other people - due to uncertainty about the other person’s type. Along the way, I show that the valuation of one’s own life is one of the central mechanisms that drives Hobbes’s pessimistic conclusion. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Theologian's Doubts:Natural Philosophy and the Skeptical Games of GhazālīLeor HaleviIn the history of skeptical thought, which normally leaps from the Pyrrhonists to the rediscovery of Sextus Empiricus in the sixteenth century, Abū Ḥāmid Muḥammad al-Ghazālī (1058-1111) figures as a medieval curiosity. Skeptical enough to merit passing acknowledgment, he has proven too baffling to be treated fully alongside pagan, atheist, or materialist philosophers. As a theologian defending certain Muslim (...) dogmas, Ghazālī has not met what historians consider the mark of the true skeptic, a mind doubting the possibility of all systems of knowledge. But what is fascinating about him is that he brought into practical operation the tools of what I call "functional skepticism."1He denied the claims to truth of Aristotelian physics—whose basis he showed to rest on groundless belief—then turned and argued for the possibility of the Resurrection tooth and nail. The scholarly debate on The Incoherence of the Philosophers (Tahāfut al-falāsifa) has concentrated on the extent to which Ghazālī qua Ashcarite theologian was seduced into Aristotelian philosophy despite himself.2 In my view this debate has been misguided in the attempt to distill the [End Page 19] essence of Ghazālī from the book's eclectic theology; I will argue for a different view of Ghazālī on the basis of a close reading of key passages. In the unusual sections where Ghazālī applies Aristotelian language to a world not following the ordinary laws of physics, some have found Ghazālī slipping, unconsciously perhaps, into an Aristotelian frame of mind. I will show that, as a skeptical theologian with a dialogic imagination, he was rather deconstructing Aristotelian discourse while playing a Wittgensteinian sort of language game.Natural Philosopher or Speculative Theologian?The disagreement about the extent to which philosophy infected Ghazālī is ancient. Ghazālī might have studied philosophy only in order to refute it. He himself defended his philosophizing with the claim that one cannot deconstruct a system of thought until one has understood it so deeply as to elaborate upon its fundamental principles.3 His Maqāṣid al-falāsifa was in fact received, especially in trans-Pyrenean Europe, as a philosopher's genuine summary of the object of philosophy.4 The book strikes me as suspiciously creative in its representation of philosophical discourse, but it appears in any case as an expert and surprisingly unbiased treatment.5 Arabic readers knew that Ghazālī had also written a polemical treatise against philosophy, Tahāfut al-falāsifa, but they still wondered about his engagement with the ideas he challenged. Abū Bakr Ibn al-cArabī, for example, commented that Ghazālī had been unable to extricate himself from philosophy.6 Other philosophers pondered whether or not he had been a closeted member of their charmed circle and sought in his writings traces of esoteric philosophy.7Averroës's own sober sense of distance between philosophy and theology was partially a reaction to what he perceived as Ghazālī's dangerous and carefree mixture of the two sciences.8 He attacked Ghazālī's book in The Incoherence [End Page 20] of the Incoherence to restore philosophy's sense of purity, an aim he sought to accomplish by separating religious concerns from the philosopher's field of inquiry.9 Ironically, such a separation is precisely what Ghazālī might have wished to provoke by crisscrossing and blurring the line between religion and philosophy.The modern debate on chapter 17 of Tahāfut al-falāsifa has concentrated on defining Ghazālī as either a natural philosopher or an occasionalist theologian. In his defense of the possibility of miracles Ghazālī presented two theories of causation, one denying the logical basis of Aristotelian notions of natural causality, and the other more or less adopting these notions. Jointly, the two theories have seemed incompatible, and for this reason scholars have attempted to sort Ghazālī out of the apparent confusion. In 1978 L. E. Goodman argued persuasively that Ghazālī exploited rather than denied the philosophers' ideas of causality. In two articles Michael Marmura challenged Goodman, contending... (shrink)

We formulate an elementary statistical game which captures the essence of some fundamental quantum experiments such as photon polarization and spin measurement. We explore and compare the significance of the principle of maximum Shannon entropy and the principle of minimum Fisher information in solving such a game. The solution based on the principle of minimum Fisher information coincides with the solution based on an invariance principle, and provides an informational explanation of Malus' law for photon polarization. There is (...) no solution based on the principle of maximum Shannon entropy. The result demonstrates the merits of Fisher information, and the demerits of Shannon entropy, in treating some fundamental quantum problems. It also provides a quantitative example in support of a general philosophy: Nature intends to hide Fisher information, while obeying some simple rules. (shrink)

Hobbes’s state of nature is often analyzed in two-person two-action non-cooperative games. By definition, this literature only focuses on duels. Yet, if we consider general games, i.e., with more than two agents, analyzing Hobbes’s state of nature in terms of duel is not completely satisfactory, since it is a very specific interpretation of the war of all against all. Therefore, we propose a definition of the state of nature for games with an arbitrary number of players. (...) We show that this definition coincides with the strategy profile considered as the state of nature in two-person games. Furthermore, we study what we call rational states of nature. We show that in rational states of nature, the utility level of any agent is equal to his maximin payoff. We also show that rational states of nature always exist in inessential games. Finally, we prove the existence of states of nature in a class of symmetric games. (shrink)

This article contributes to the debate around the abilities of large language models such as GPT-3, dealing with: firstly, evaluating how well GPT does in the Turing Test, secondly the limits of such models, especially their tendency to generate falsehoods, and thirdly the social consequences of the problems these models have with truth-telling. We start by formalising the recently proposed notion of reversible questions, which Floridi & Chiriatti propose allow one to ‘identify the nature of the source of their (...) answers’, as a probabilistic measure based on Item Response Theory from psychometrics. Following a critical assessment of the methodology which led previous scholars to dismiss GPT’s abilities, we argue against claims that GPT-3 completely lacks semantic ability. Using ideas of compression, priming, distributional semantics and semantic webs we offer our own theory of the limits of large language models like GPT-3, and argue that GPT can competently engage in various semantic tasks. The real reason GPT’s answers seem senseless being that truth-telling is not amongst them. We claim that these kinds of models cannot be forced into producing only true continuation, but rather to maximise their objective function they strategize to be plausible instead of truthful. This, we moreover claim, can hijack our intuitive capacity to evaluate the accuracy of its outputs. Finally, we show how this analysis predicts that a widespread adoption of language generators as tools for writing could result in permanent pollution of our informational ecosystem with massive amounts of very plausible but often untrue texts. (shrink)

This 1997 work is a book-length treatment of the unique nature and development of Nietzsche's post-Zarathustran political philosophy. This later political philosophy is set in the context of the critique of modernity that Nietzsche advances in the years 1885–1888, in such texts as Beyond Good and Evil, On the Genealogy of Morals, Twilight of the Idols, The Antichrist, The Case of Wagner, and Ecce Homo. In this light Nietzsche's own diagnosis of the ills of modernity is subject to the (...) same criticism that he himself levelled against previous philosophies; that it is an involuntary symptom of the age it represents. Nietzsche is seen to be aware of his own decadence and of his complicity with the very tendencies that he dissects and deplores. By relating the political philosophy, the critique of modernity and the theory of decadence Daniel Conway has written a powerful book about Nietzsche's own appreciation of the limitations of both his writing style and of his famous prophetic 'stance'. (shrink)

Currents expositions of game-theoretical semantics two lines of interpretation are mixed. On the one hand, the theory provides a way of extending truht-conditions from atomic to non-atomic sentences. On the other hand, the theory analyze meaning by allowing us to describe a certain kind of compIex activities: verification games against Nature. In this paper, both inteperpretations are sorted out and their respective emphasized.

Around 1960, leading figures in the international conservation circuit – such as Julian Huxley, Frank Fraser Darling and E. Barton Worthington – successfully propagated new visions about the value of undomesticated African mammals. Against traditional ideas, they presented these mammals as a highly efficient source of protein for growing African populations. In line with this vision, they challenged non-interventionist ideals of nature preservation, and launched proposals for active management through game ‘ranching’ and ‘cropping’. As such, they created (...) a new socio-technical imaginary for Africa's future, in which the consumption of wildlife meat took up a central position. This article explores the motivations of Western conservationists for this drastic rebranding. It argues that the rationale of considering African wildlife in terms of protein played an important symbolical role at various levels. It was crucial in the reorganization of the transnational networks of conservation, but also in the boosting of their scientific reputation, in the restructuring of their institutional ties, and in their attempts to maintain an authoritative position for Western ecologists in a rapidly decolonizing world. (shrink)

The view defended in this paper - I call it the No-Assertion view - rejects the assumption that it is theoretically useful to single out a subset of sayings as assertions: (v) Sayings are governed by variable norms, come with variable commitments and have variable causes and effects. What philosophers have tried to capture by the term 'assertion' is largely a philosophers' invention. It fails to pick out an act-type that we engage in and it is not a category we (...) need in order to explain any significant component of our linguistic practice. Timothy Williamson (2000) defends a theory of type (i). He says that a theory of assertion has as its goal "[…] that of articulating for the first time the rules of a traditional game that we play" (p. 240). Among those who think we play the game of assertion, there's disagreement about what the rules are. Some think it's a single rule and disagree about what that rule is. Others think the rules change across contexts. According to the No-Assertion view we don’t play the assertion game. The game might exist as an abstract object, but it is not a game you need to learn and play to become a speaker of a natural language. (shrink)

A variety of robustness objections have been made against evolutionary game theory. One of these objections alleges that the games used in the underlying model are too arbitrary and oversimplified to generate a robust model of interesting prosocial behaviors. In this paper, I argue that the robustness objection can be met. However, in order to do so, we must attend to important conceptual issues regarding the nature of fairness, justice, and other moral concepts. Specifically, we must better (...) understand the relationship between moral concepts and formal characterizations of games. (shrink)

The problem considered in the paper is whether the stereotype of zerosum games is applicable to present-day discussions on environmental threats. Decision theory could be considered as a tool to substantiate the philosophical notion of rationality of actions and in this aspect, it could be a good methodological instrument of philosophical economics. Decision theory can be used to assess positions in problem situations and predict possible solutions in terms of gains and losses. This can also be applied to human actions (...) in relation to nature. In the paper this theory is used to assess the moral and political validity of the positions of developing countries against the main claims of the forceful countries for unified solutions for protection of the natural environment. Justified solutions in the field of environmental security can be sought only by overcoming the economic and social imbalances and corporate interests. The most justified perspective for international relations and in searching for solutions of present-day social and ecological conflicts is to move from the form of a zero-sum game, in which the powerful countries win and the poor ones invariably lose, to a true non-zero-sum game suitable for implementing cooperative strategies. This type of development can become a reality only on the basis of a new social contract, based on pluralism and balance of interests, on the scale of all humanity. (shrink)

Most of the images evoked by the term shamanism are derived from the soul's field of experience. These images run the gamut of possibilities, from a disconcerting exoticism to the most intimate familiarity. Sometimes the shaman's role is limited to that of pathetic hero, struggling in solitude against hostile nature; sometimes he becomes the rudimentary model of the mystic or even of the psychiatrist of contemporary societies. These images, however, without being completely false, wrongly reduce the shamanic phenomenon (...) to the shaman's personality and limit his field of action to the individual psyche. This limitation hardly does justice to the realities of shamanistic societies. What is missing in the shaman-centered view is the collective's slumbering velleity of itself entering into shamanic experience. Each cure becomes an occasion for collective renewal and joy. The shaman's activities in séance, it is believed, are an expression of the direct contact he has established with the spirits and of his power over them; his duties are the realization of a ritual act carried out at the behest of the community. (shrink)

We present evidence against the standard assumptions that social preferences are stable and can be measured in a reliable, nonintrusive manner. We find evidence that measures of social preferences can affect subsequent behavior. Researchers often measure social preferences by posing dictator type allocation decisions. The social value orientation (SVO) is a particular sequence of dictator decisions. We vary the order in which the SVO and a larger stakes dictator game are presented. We also vary the form of the (...) dictator game. In one study, we employ the standard dictator game, and in the other, we employ a nonstandard dictator game. With the standard dictator game, we find that prosocial subjects act even more prosocially when the SVO is administered first, whereas selfish subjects are unaffected by the order. With the nonstandard dictator game, we find evidence across all subjects that those who first receive the SVO are more generous in the dictator game but we do not find the effect among only the generous subjects. Across both dictator game forms, we find evidence that the subjects who are first given the SVO were more generous than subjects who are given the SVO last. We also find that this effect is stronger among the subjects with a perfectly consistent SVO measure. Although we cannot determine whether the order affects preferences or the measure of preferences, our results are incompatible with the assumptions that social preferences are stable and can be measured in a reliable, nonintrusive manner. (shrink)

Hobbes believed that the state of nature would be a war of all against all. Locke denied this, but acknowledged that in the absence of government, peace is insecure. In this paper, I analyse both accounts of the state of nature through the lens of classical and experimental game theory, drawing especially on evidence concerning the effects of punishment in public goods games. My analysis suggests that we need government not to keep wicked or relentlessly self-interested (...) individuals in line, but rather to maintain peace among those who disagree about morality. (shrink)

We examined here whether people believe consumers of natural foods are more virtuous than consumers of unnatural foods. In Study One we asked student participants (n = 84; 77 female, M age = 19.5) to form an impression of another person based solely upon whether they ate natural or unnatural foods, these being determined in a pilot survey. On an open response format, participants reported more positive moral and health traits in consumers of natural foods. These findings were further confirmed (...) using rating-based evaluations. In Study Two we determined if this belief in the virtuousness of natural food consumers translated into behaviour. Student participants (n = 40; 25 female, M age = 20.2) played a trust game, exchanging tokens with a fictitious player. Incidental diet information about the fictitious player was provided, with participants in one group playing against a natural food consumer and those in another against an unnatural food consumer. Participants who played against a natural food consumer behaved as if they trusted this person more, and their performance on the game was predicted by how moral they felt the fictitious player was, but not by other attributes such as health. These findings suggest that people believe consumers of natural food are more virtuous, and we suggest this is driven by the altruistic attitudes that people believe to be associated with natural food consumption. (shrink)

Despite frequent calls by players, managers and fans, FIFA's resistance to the implementation of goal-line technology (GLT) has been well documented in national print and online media as well as FIFA's own website. In 2010, FIFA president Sepp Blatter outlined eight reasons why GLT should not be used in football. The reasons given by FIFA can be broadly separated into three categories; those dealing with the nature and value of the game of football, those related to issues of (...) justice, and those concerned with the practical implementation of GLT. This paper intends to evaluate these eight reasons in order to assess whether there are, indeed, any good arguments against GLT in football. (shrink)

The goal of this paper is to defend the theory of generalized evolution (GE) against criticisms by laying down its theoretical principles and their applications in a unified way. Section 2 develops GE theory and its realization in biological evolution (BE) and cultural evolution (CE). The core of GE theory consists of the three Darwinian principles together with the models of population dynamics (PD). Section 3 reconstructs the most important differences between BE and CE. While BE is predominantly based (...) on the replication of genes, CE is based on the reproduction of memes. Memes are understood as the informational “software” of human brains transmitted through social learning processes. The ontology of memes and the concept of cultural fitness is carved out and refined. Finally, section 4 articulates the minimal ontological assumptions of GE theory and the quantitative principles of generalized PD that unify biological PD and evolutionary game theory. (shrink)

In his writings Jim Marshall has helpfully emphasized such Wittgensteinian themes as the multiplicity of language games, the deconstruction of ‘certainty,’ and the contexts of power that underlie discursive systems. Here we focus on another important legacy of Wittgenstein's thinking: his insistence that human activity is rule‐governed. This idea foregrounds looking carefully at the world of education and learning, as against the empirical search for new psychological or other facts. It reminds us that we need to consider, in Peter (...) Winch's words, ‘what it makes sense to say’ about certain educational phenomena, and how these meanings stand against understanding a wider form of life. This insight has important implications for doing educational research, and we examine some of these. (shrink)

This book attempts to create an evolutionary theory of fairness. Sharing food is commonplace in the animal kingdom because it ensures animals that share against hunger. Anthropologists report that hunter-gatherer societies which survived into the 20th century shared on a very egalitarian basis. What can such information tell us about the sense of fairness with which modern man is born? Using game theory as a basic tool, the book argues that fairness norms should be seen as a device (...) for selecting an efficient equilibrium in the human game of life. Evolutionary arguments are then used to argue that the deep structure of this device resembles the original position formulated by John Rawls in his Theory of Justice. Such an evolutionary framework allows problems over welfare comparison and norm enforcement to be tackled in a manner that resolves the long debate between utilitarianism and egalitarianism. (shrink)

We examine the relationship between dependence logic and game logics. A variant of dynamic game logic, called Transition Logic, is developed, and we show that its relationship with dependence logic is comparable to the one between first-order logic and dynamic game logic discussed by van Benthem. This suggests a new perspective on the interpretation of dependence logic formulas, in terms of assertions about reachability in games of imperfect information against Nature. We then capitalize on this (...) intuition by developing expressively equivalent variants of dependence logic in which this interpretation is taken to the foreground. (shrink)

Against Nature – Chapter Abstracts Chapter 1. A Transdisciplinary Approach. In this short book you will find philosophy – metaphysical and political - economics, critical theory, complexity theory, ecology, sociology, journalism, and much else besides, along with the signposts and reference texts of the Information Systems field. Such transdisciplinarity is a challenge for both author and reader. Such books are often problematic: sections that are just old hat to one audience are by contrast completely new and difficult to (...) another. My hope is that in the interconnections, arguments and thrust of this polemic, readers will discover both interest and insight, alongside a range of new avenues to explore. This introductory chapter sets the scene – today’s digital world of Tech Giants and Fake News, its roots in the philosophical arguments of the 1920s, and the book’s key claims: (i) that the early 20th century philosophical grounding of today’s digital revolution is culpable in digital’s (growing) contribution to the ecological catastrophe unfolding in the 21st century; (ii) that process philosophy offers a new way to rethink that philosophical grounding, and reshape the digital revolution to support strategies to counter that catastrophe. Chapter 2. The Problem with Digital. This chapter begins with a brief overview of the research approaches in information systems as an academic field, before turning to the deeper roots of its malaise, in individualism, and its looming consequences. The three branches of Information Systems research, in academia, prove to be a useful lens through which to understand the field: Positivism, Interpretivism, and the Critical stance taken by this book. The ‘scientism’ at the root of positivism is examined, and the positivism in Information Systems critiqued as a historically contingent response to the ascendancy of a new brand of economics in Business Schools after the Second World War. But the computational market-fundamentalist form of economics sponsored in the 1950s (and applied by governments since the 1970s) centred around notions of the individual rational actor as an information processor. The philosophical underpinning of methodological and possessive individualism in this approach is exposed, and its influence upon the development – long before computing – of the science of ecology, and our notion of ecosystems, introduced. Chapter 3. The Future Does Not Exist. The philosophical core of the book, this chapter introduces process philosophy. Through an examination of the irreversible reality of subjectivity, Bergson’s famous notion of the durée reélle, and Whitehead’s critique of the bifurcation of subject and object, are introduced. The causally closed ‘time’ of positive science determines existence from the beginning to the end of the universe, be it three seconds or three trillion years. But the reality, of course, is that the future does not exist: our choices are real, and only one of myriad potential futures comes into being at each moment. As Bergson insists, durational succession exists, I am conscious of it; it is a fact. Bergson’s star – once the brightest of any living philosopher in the world – faded almost as quickly as it rose, under the onslaught from the logical positivists whose verificationism insisted that any proposition has no factual meaning if no evidence of observation can count for or against it: all ethics, aesthetics, romance, and metaphysics – and the very subjectivity with which duration is experienced - were thus closed down and dismissed. In this chapter it is reintroduced, to a new audience. Chapter 4. The World in a New Light. Many fundamental problems in the world can be seen as resulting from the false philosophy of bifurcation, fixity, and the reification of abstractions critiqued by process philosophy. Being – with all the isolation and focus upon the individual that it entails – must, if we are to address these problems, be seen as secondary to Becoming, with all the connection, interrelatedness, and complex collectivity that it implies. Choices become clearer, between positivism and interpretivism, between accents upon individualism or collectivism, between reductionist and complex adaptive systems approaches. The systemic individualism in Anglo-American societies can be regarded as actually harmful: the Tech Giants severing ties and bonds rather than connecting us; algebraic ecological models actually breaking the co-dependencies and co-requisites upon which real – complex - ecological health depends. Positivism, built as it is upon methodological individualism, seen in the light of process philosophy, becomes a danger to personal psychological balance – cutting us off from one another; a danger to the social fabric – undermining and impoverishing our civic life; and a danger to the ecological health of the planet – ignoring the immense (eco)systemic impact of our activities over the last centuries upon everything around us in the natural world. Chapter 5. A Theoretical Manifesto for Green IT. We are not islands, and in a process-relational social organisation much must be held in common. We are individuals, but we cannot survive alone. Four different perspectives on individualism show it to be little more than greed. An ecological economics reintegrating the household, the social, the supportive State, and – crucially – the life-giving earth into our polities is introduced and promoted. I introduce the concept of ‘Infomateriality’ – a non-bifurcated digital world where the physical bodies of people - fingers touching keyboards and eyes scanning screens - are as much ‘hardware’ as cabling, circuitboards and haptic interfaces, and the social practices, power relations, and embedded politics within IT artefacts define all such techné as fundamentally social. Abstract divisions are false, and whole, socially embedded systems should be the focus of IS, and from a philosophically and sociologically much deeper perspective. ‘Tech for Good’ is held up as movement in the right direction. My hope is that this book will help promote action, in the field of information systems, toward a better world, where Green Tech for Good is deployed for Nature, rather than against it. (shrink)

This work is an attempt to lay foundations for a theory of interactive computation and bring logic and theory of computing closer together. It semantically introduces a logic of computability and sets a program for studying various aspects of that logic. The intuitive notion of computational problems is formalized as a certain new, procedural-rule-free sort of games between the machine and the environment, and computability is understood as existence of an interactive Turing machine that wins the game against (...) any possible environment. The formalism used as a specification language for computational problems, called the universal language, is a non-disjoint union of the formalisms of classical, intuitionistic and linear logics, with logical operators interpreted as certain—most basic and natural—operations on problems. Validity of a formula is understood as being “always computable”, and the set of all valid formulas is called the universal logic. The name “universal” is related to the potential of this logic to integrate, on the basis of one semantics, classical, intuitionistic and linear logics, with their seemingly unrelated or even antagonistic philosophies. In particular, the classical notion of truth turns out to be nothing but computability restricted to the formulas of the classical fragment of the universal language, which makes classical logic a natural syntactic fragment of the universal logic. The same appears to be the case for intuitionistic and linear logics . Unlike classical logic, these two do not have a good concept of truth, and the notion of computability restricted to the corresponding two fragments of the universal language, based on the intuitions that it formalizes, can well qualify as “intuitionistic truth” and “linear-logic truth”. The paper also provides illustrations of potential applications of the universal logic in knowledgebase, resourcebase and planning systems, as well as constructive applied theories. The author has tried to make this article easy to read. It is fully self-contained and can be understood without any specialized knowledge of any particular subfield of logic or computer science. (shrink)

We extend Gurevich-Harrington's Restricted Memory Determinacy Theorem), which served in their paper as a tool to give their celebrated “short proof” of Robin's decision method for S2S. We generalize the determinacy problem by attaching to the game two opposing strategies called restraints, and by asking “which player has a strategy which is a refinement of the restraint for the player and such that it wins the game against the restraint of the opponent?” We give a solution for (...) the Determinacy with Restraints Problem in the class of strategies with restricted memory for the GH games. The solution includes a criterion for the winning player and an explicit class of winning strategies. A determinacy result which includes similar information was first discovered by Büchi and Landweber and extended by Büchi . However, these pioneering works do not consider the determinacy with restraints. Also, the explicit presentation of winning strategies in these insightful papers does not emphasize their modular construction as do GH's and our proofs. In our view, this is a source of a difficulty in understanding these papers. Games with restraints and modular construction of winning strategies have applications to the semantics, development and verification of concurrent programs. A concurrent program can be viewed as a strategy in a certain game and a program specification can be regarded as a combination of a winning condition and restraints for the game , A. Yakhnis and V. Yakhnis ). The modularity of a winning strategyfor the game helps to generate a concurrent program from the strategy that satisfies the specification ). It turns out that such program specification requirements as mutual exclusion and an absence of a lockout or a deadlock are naturally represented as Büchi's or Gurevich-Harrington's winning conditions. The present paper can be read independently of the paper by Gurevich and Harrington. (shrink)

Each of us has a story which we can think of as a set of beliefs, hopefully consistent. We make our decisions in view of our beliefs which may be probabilistic, in the general case, but simple yes or no as in this paper. Our beliefs are our envelope just as the shell of a tortoise is its envelope. Decision theory—or single agent game theory tells us when to make the best choice in a game of us (...) class='Hi'>against nature. But nature has no desire to further or frustrate our efforts. Nature is mysterious but not malign. Things change when there are other agents involved. Then the best thing for us to do will depend on what they do. And they will think the same. And we predict their actions in terms of what we think their beliefs are. But how do we coordinate with others whose beliefs are different? This paper addresses the issue of working together despite different beliefs. (shrink)

In evolutionary models of indirect reciprocity, reputation mechanisms can stabilize cooperation even in severe cooperation problems like the prisoner’s dilemma. Under certain circumstances, conditionally cooperative strategies, which cooperate iff their partner has a good reputation, cannot be invaded by any other strategy that conditions behavior only on own and partner reputation. The first point of this paper is to show that an evolutionary version of backward induction can lead to a breakdown of this kind of indirectly reciprocal cooperation. Backward induction, (...) however, requires strategies that count and then cease to cooperate in the last, last but one, last but two, … game they play. These strategies are unlikely to exist in natural settings. We then present two new findings. (1) Surprisingly, the same kind of breakdown is also possible without counting. Strategies using rare golden opportunities for defection can invade conditional cooperators. This can create further golden opportunities, inviting the next wave of opportunists, and so on, until cooperation breaks down completely. (2) Cooperation can be stabilized against these opportunists, by letting an individual’s initial reputation be inherited from that individual’s parent. This ‘inclusive reputation’ mechanism can cope with any observably opportunistic strategy. Offspring of opportunists who successfully exploited a conditional cooperator cannot repeat their parents’ success because they inherit a bad reputation, which forewarns conditional cooperators in later generations. (shrink)

It has recently been argued that the concept of natural kinds should be eliminated because it does not play a productive theoretical role and even harms philosophical research on scientific classification. We argue that this justification for eliminativism fails because the notion of ‘natural kinds’ plays another epistemic role in philosophical research, namely, it enables fruitful investigation into non-arbitrary classification. It does this in two ways: first, by providing a fruitful investigative entry into scientific classification; and second—as is supported by (...) bibliometric evidence—by tying together a research community devoted to non-arbitrary classification. The question of eliminativism then requires weighing off the benefits of retaining the concept against its harms. We argue that the progressive state of philosophical work on natural kinds tips this balance in favour of retaining the concept. (shrink)

Some environmental views characterise the human abuse of nature as an offence against nature itself. What conception of nature would best fit that characterisation? To focus upon such a conception, aesthetic offences against nature are examined and distinguished at the outset from moral offences. Aesthetic offences are divided into those internal to our cultural outlook and external to it. The external outlook, conceiving nature as a thing wholly apart from us, is shown to (...) be necessary to any view of nature being offended against. Central to the external outlook is a conception of nature as the victim of offence without ever being itself an offending agent. Best fitting this is the notion of nature as primordially innocent. Given this metaphorical extension, the awkward consequence arises that any human use of nature constitutes thereby an abuse of it from the external standpoint. (shrink)

Argues that the tradition of critical theory has had significant problems dealing with the concept of nature and that their solutions require taking seriously the idea of nature as socially constructed.

Debates about the moral and political acceptability of particular sexual practices and new technologies often include appeals to a supposed imperative to follow nature. If nature is understood as the totality of all phenomena or as those things that are not artificial, there is little prospect of developing a successful argument to impugn interference with it or sinning against it. At the same time, there are serious difficulties with approaches that seek to identify "proper" human functioning. An (...) alternative approach is to understand interference with nature as acting in a manner that threatens basic background conditions to human choice. Arguably, the theory of background conditions helps explain much of the hostility to practices and technologies that allegedly sin against nature. The theory does not, however, entail that appeals to nature are relevant or rational. Such appeals should be subjected to sceptical scrutiny. Indeed, the theory suggests that arguments against practices and technologies that can be seen as contrary to nature sometimes exercise a psychological attraction that is disproportional to their actual cogency. (shrink)

Since Kant limits knowledge to phenomena and espouses a Newtonian model for science, he came into conflict with a biological or organic model of nature that animated the aesthetic attitude of romanticism. The focus of the opposition was his former pupil Herder – “the father of German historicism” – who lived in the Weimar of Goethe and Schiller. Kant's speculations go beyond nature to the noumenal to ground ethics. He justifies this "rational faith" by assuming God has a (...) teleological program in nature that ultimately brings progress in culture in a republican form of government that represents the noumenal ethical law. This opposes Herder’s doctrine of organic culture and political nations, each distinct in their creative determinants. (shrink)

In this paper, I argue that Scott Soames’ theory of naturalized cognitive propositions faces a serious objection: there are true propositions for which NCP cannot account. More carefully, NCP cannot account for certain truths of mathematics unless it is possible for there to be an infinite intellect. For those who reject the possibility of an infinite intellect, this constitutes a reductio of NCP.

The problem -- Specific natures -- Local natures -- Universal natural laws -- The passions of the unnatural -- The very idea of order -- The plenitude of orders -- Saving the phenomena.

Pure nature, the nature that we distinguish from grace, spirit, nurture, society, history, culture, and the supernatural is an abstract fiction. A genealogy of the idea of pure nature reveals its source in the problematic theological idea of a purely human nature. But it was subsequently transformed and expanded by Rousseau into the idea of a state of nature from which all else derives. This all-encompassing nature stifles thought by dehistoricizing. Adorno’s “The Idea of (...) a Natural History” and Sartre’s offer a dialectical approach that returns us to the concrete. (shrink)

While there is good reason to think that Mendelssohn's Morgenstunden targets some of the key claims of Kant’s first Critique, this criticism has yet to be considered in the appropriate context or presented in all of its systematic detail. I show that far from being an isolated assault, Mendelssohn’s attack in the Morgenstunden is a continuation and development of his earlier criticism of Kant’s idealism as presented in the Inaugural Dissertation. I also show that Mendelssohn’s objection was more influential on (...) Kant than has previously been suspected; not only did Kant respond to it in a brief review and a set of remarks published along with a disciple’s examination of Mendelssohn’s text but, as I will suggest, Kant’s Refutation of Idealism is intended (at least in part) to undermine the Cartesian starting-point Mendelssohn had presumed throughout his campaign against Kantian idealism. (shrink)

Over the last 25 years, evolutionary game theory has grown with theoretical contributions from the disciplines of mathematics, economics, computer science and biology. It is now ripe for applications. In this book, Daniel Friedman---an economist trained in mathematics---and Barry Sinervo---a biologist trained in mathematics---offer the first unified account of evolutionary game theory aimed at applied researchers. They show how to use a single set of tools to build useful models for three different worlds: the natural world studied by (...) biologists; the social world studied by anthropologists, economists, political scientists and others; and the virtual world built by computer scientists and engineers. The first six chapters offer an accessible introduction to core concepts of evolutionary game theory. These include fitness, replicator dynamics, sexual dynamics, memes and genes, single and multiple population games, Nash equilibrium and evolutionarily stable states, noisy best response and other adaptive processes, the Price equation, and cellular automata. The material connects evolutionary game theory with classic population genetic models, and also with classical game theory. Notably, these chapters also show how to estimate payoff and choice parameters from the data. The last eight chapters present exemplary game theory applications. These include a new coevolutionary predator-prey learning model extending rock-paper-scissors; models that use human subject laboratory data to estimate learning dynamics; new approaches to plastic strategies and life cycle strategies, including estimates for male elephant seals; a comparison of machine learning techniques for preserving diversity to those seen in the natural world; analyses of congestion in traffic networks and the. (shrink)

Lorraine Daston's "Against Nature" seeks to explain why, in spite of compelling objections to the contrary, human beings continue to invest nature with moral authority. More specifically, she claims that our propensity to moralize nature is traceable in part to human nature. Though I criticize Daston for not paying adequate attention to John Stuart Mill's narrow sense of 'nature', I also highly recommend her book.

Scholars have long debated the nature of the Roman frontier. From linear defense systems designed to hold back barbarian tides to arteries of communication and exchange, rivers have been at the forefront of this discussion. This paper focuses on the Lower Danube frontier and argues that Rome’s most enduring enemy in the Balkans was not a barbarian tribe, but the river itself. The Danube frequently froze in wintertime facilitating the passage of massive raiding parties. Indeed, the most devastating attacks (...) recorded by ancient observers took place during the dead of winter, when the ice on the Danube was hard enough to allow the crossing of large number of horsemen. These attacks set in motion events and long-term processes that forever changed the cultural fabric of the region. Unable to contain the threat, early Roman emperors led campaigns north of the Danube and ultimately conquered Dacia, which allowed them to control both sides of the river. In Late Antiquity, Constantine and Justinian dramatically altered the cultural landscape with their massive programs of fortification designed to finally secure the Balkan provinces. Centuries after the fall of Rome, Byzantine emperors still relied on a combination of brute force, consolidation and diplomacy in order to prevent winter attacks. In the end, all attempts at devising a permanent solution failed and the frozen Danube remained a barbarian ally slowly eroding the empire’s control in the Balkans. (shrink)

This paper makes an argument for greater consideration of negativity in queer engagements with biological or natural systems. Focusing on one particular paper by Karen Barad – “Nature’s Queer Performativity ” – I argue that this work tends to under-read the negativity and confusion that queer entails, and so it renders nature, and the politics we might extract from it, more palatable than perhaps they should be. What interests me is that Barad’s argument about nature’s queer performativity (...) begins and ends with sodomy. While it has been a highly cathected site of analysis for some early and influential work in queer theory, sodomy has been little discussed in feminist and queer science studies where Barad’s work has been so influential. I argue that sodomy spoils any identitarian queer politics that attempt to depathologize or reaffirm the natural world. (shrink)

This short book by Lorraine Daston is a classic essay: she identifies an intellectual conundrum—why do humans across cultures and history look to nature for models for cultural norms and orders?—an...

Recent obituaries for traditional non-naturalistic approaches to rationality are not just premature but demonstrably self-defeating. One such prominent obituary appears in the writings of W. V. Quine, whose pessimism about traditional epistemology stems from his scientism, the view that the natural sciences have a monopoly on legitimate theoretical explanation. Quine also offers an obituary for the a priori constraints on rationality found in “first philosophy”, resting on his rejection of the “pernicious mentalism” of semantic theories of meaning. Quine’s pronouncements of (...) the death of traditional conceptions of rationality in epistemology and in the theory of meaning are, we contend, but misguided wishes for their death, wishes that face severe problems of self-defeat. In addition, Quine’s naturalistic epistemology is subject to damaging skeptical worries, the force of which one cannot escape by ignoring them. A non-naturalistic approach to rationality is here to stay, whether friends of Quine’s naturalism like it or not. Any sweeping claim that non-naturalistic accounts of rationality are dead will face insurmountable obstacles from unavoidable questions about its own rational justification. Such questions will keep non-naturalistic epistemology and first philosophy alive forever, or at least as long as philosophers endure. (shrink)