This paper situates Wittgenstein in what is known as the causalism/anti-causalism debate in the philosophy of mind and action and reconstructs his arguments to the effect that reasons are not a species of causes. On the one hand, the paper aims to reinvigorate the question of what these arguments are by offering a historical sketch of the debate showing that Wittgenstein's arguments were overshadowed by those of the people he influenced, and that he came to be seen as (...) an anti-causalist for reasons that are in large part extraneous to his thought. On the other hand, the paper aims to recover the arguments scattered in Wittgenstein's own writings by detailing and defending three lines of argument distinguishing reasons from causes. The paper concludes that Wittgenstein's arguments differ from those of his immediate successors; that he anticipates current anti-psychologistic trends; and that he is perhaps closer to Davidson than historical dialectics suggest. (shrink)

In this essay, I will suggest ways of improving on Davidson’s conception of the explanatory autonomy of folk psychological explanations. For that purpose, I will appeal to insights from the recent theory of mind debate emphasizing the centrality of various forms of empathy for our understanding of another person’s mindedness. While I will argue that we need to abandon Davidson’s position of anomalous monism, I will also show that my account is fully compatible with Davidson’s non-reductive and interpretationist account of (...) meaning and mental content. Indeed, my account does more justice to the empathic capacities underlying our interpretive capacities, which Davidson himself has to acknowledge in thinking about the constitutive features of thought and meaning. More specifically, I will propose a new way of philosophically safeguarding the causal-explanatory autonomy of our ordinary action explanations by showing how our empathic capacities are involved in epistemically delineating the domain of rational agency. (shrink)

How do mental states come to be about something other than their own operations, and thus to serve as ground for effective action? This papers argues that causation in the mental domain should be understood to function on principles of intelligibility (that is, on principles which make it perfectly intelligible for intentions to have a causal role in initiating behavior) rather than on principles of mechanism (that is, on principles which explain how causation works in the physical domain). The paper (...) considers Dharmakīrti’s kāryānumāna argument (that is, the argument that an inference is sound only when one infers from the effect to the cause and not vice versa), and proposes a naturalized account of reasons. On this account, careful scrutiny of the effect can provide a basis for ascertaining the unique causal totality that is its source, but only for reasoning that is context‐specific. (shrink)

This article investigates the causal efficacy of social properties, which faces the following puzzle. First, for both intuitive and scientific reasons, it seems social properties have causal import. But, second, social properties are also characteristically extrinsic: to have some social property depends, in typical cases, on what one’s society is like around them. And, third, there is good reason to doubt that extrinsic properties make a genuine causal contribution. After elaborating on these three claims, I defend the following resolution (...) to the puzzle: social causation occurs at the level at which social properties are intrinsic. (shrink)

This paper explains what it is to believe something for a reason. My thesis is that you believe something for a reason just in case the reason non-deviantly causes your belief. In the course of arguing for my thesis, I present a new argument that reasons are causes, and offer an informative account of causal non-deviance.

We offer a model of moral reform and regeneration that involves a wrong-doer making two movements: on the one hand, he identifies with himself as the one who did the act, while he also intentionally moves away from that self (or set of desires and intentions) and moves toward a transformed identity. We see this model at work in the formal practice of contrition and reform in Christian and Buddhist rites. This paper is part of a broader project we are (...) undertaking on the philosophy of forgiveness. (shrink)

This paper investigates two puzzles in practical reason and proposes a solution to them. First, sometimes, when we are practically certain that neither of two alternatives is better than or as good as the other with respect to what matters in the choice between them, it nevertheless seems perfectly rational to continue to deliberate, and sometimes the result of that deliberation is a conclusion that one alternative is better, where there is no error in one’s previous judgment. Second, there are (...) striking differences between rational agents – some rational agents have most reason to pursue careers on Wall Street while others have most reason to take up a career in teaching, or scuba diving, or working for political causes. These differences aren’t plausibly explained by ‘passive’ facts about our psychology or their causal interaction with our environment; instead, these facts seem in some sense to ‘express who we are’. But what is this sense? These puzzles disappear if we adopt a novel view about the source of the normativity of reasons – some reasons are given to us and others are reasons in virtue of an act of will. We make certain considerations reasons through an act of will and thus sometimes make it true through an act of agency that we have most reason to do one thing rather than another. (shrink)

I accomplish two things in this paper. I explain the motivation for including experimental research in philosophical projects on epistemic reasons and the basing relation. And I present the first experimental contributions to these projects. The results from two experiments advance our understanding of the ordinary concepts of reasons and basing and set the stage for further research on the topics. More specifically, the results support a causal theory of the basing relation, according to which reasons are (...) causes, and a dualist theory of epistemic reasons, according to which reasons include both psychological and non-psychological items. (shrink)

this paper offers a new interpretation of Phaedo 96a–103a. Plato has devoted the dialogue up to this point to a series of arguments for the claim that the soul is immortal. However, one of the characters, Cebes, insists that so far nothing more has been established than that the soul is durable, divine, and in existence before the incarnation of birth. What is needed is something more ambitious: a proof that the soul is not such as to pass out of (...) existence. According to Socrates’s initial response to Cebes at 95e8–96a1, giving such a demonstration requires a thorough investigation into “the reason for coming to be and passing away in general” (ὅλως γὰρ δεῖ περὶ γενέσεως καὶ φθορᾶς τὴν αἰτίαν διαπραγματεύσασθαι 95e9–96a1). This leads Socrates to the passage with which this paper is concerned. He mentions several changes of different sorts and nominates some purported “causes” that he and other theorists used to accept, but which he now finds scarcely intelligible. He then expounds his own mature view that the Forms are causes. The existing literature on this passage is vast and highly sophisticated, so much so that one might reasonably despair of saying something new at this stage. Nevertheless, I think some of Socrates’s remarks on philosophical methodology in our passage have not yet been appreciated as deeply as they should be. In particular, there has been little work showing how well-integrated they are with his positive proposals about causes. I also think that there are metaphysical models available to modern philosophers, not merely coherent with but actually suggested by Socrates’s methodology, which give a more satisfactory picture of those positive proposals than others available in the contemporary literature. That, at any rate, is what this paper aims to provide. (shrink)

This chapter discusses some of Anscombe’s contributions to the philosophy of practical reason. It focuses particularly on Anscombe’s view of what it is to act for reasons. I begin by discussing the relationship between acting intentionally and acting for reasons in Anscombe's theory of action. I then further explicate her view by discussing her rejection of two related views about acting for reasons: causalism (the view that reasons are a kind of cause of actions) and psychologism (...) (the view that reasons are mental states like desires and beliefs). In the process, I try to show that Anscombe’s rejection of these theses does not leave us with mystery, but rather sheds light on an interesting and serious heterodox view of acting for reasons. I conclude by suggesting that though Anscombe's views have been taken sufficiently seriously by philosophers of action, they should be taken more seriously by philosophers of practical reason. (shrink)

Many theories in philosophy, law, and psychology, make no distinction in meaning between causing and enabling conditions. Yet, psychologically people readily make such distinctions each day. In this paper we report three experiments, showing that individuals distinguish between causes and enabling conditions in brief descriptions of wrongful outcomes. Respondents rate actions that bring about outcomes as causes, and actions that make possible the causal relation as enablers. Likewise, causers (as opposed to enablers) are rated as more responsible for (...) the outcome, as liable to longer prison sentences, and as liable to pay higher fines. Moreover, the more actors involved, the more blame volume there is psychologically to be apportioned between them. The implication is that theories and the law in practice, both criminal and civil, may dangerously mismatch the intuitions of those to whom they are supposed to apply. The findings are discussed in light of contemporary psychological theories of how people reason about cause. -/- The paper presents the extended findings supplementary to the conference paper: Frosch, C. A., Johnson-Laird, P. N., Cowley, M. (2007). Don’t blame me your Honor, I’m only the enabler. Proceedings of the Twenty–Ninth Annual Conference of the Cognitive Science Society, p. 1755, Mahweh, N. J: Erlbaum. Nashville, USA. *Main findings now cited in the Oxford Handbook of Causal Reasoning. (shrink)

In this paper, I examine Wittgenstein’s conception of reason and rationality through the lens of his conception of reasons. Central in this context, I argue, is the image of the chain, which informs not only his methodology in the form of the chain-method, but also his conception of reasons as linking up immediately, like the links of a chain. I first provide a general sketch of what reasons are on Wittgenstein’s view, arguing that giving reasons consists (...) in making thought and action intelligible by delineating reasoning routes; that something is a reason not in virtue of some intrinsic property, but in virtue of its role; and that citing something as a reason characterises it in terms of the rational relations it stands in according to context-dependent norms. I then argue that on Wittgenstein’s view, we misconceive chains of reasons if we think of them on the model of chains of causes. Chains of reasons are necessarily finite, because they are anchored in and held in place by our reason-giving practices, and it is in virtue of their finitude that chains of reasons can guide, justify and explain. I argue that this liberates us from the expectation that one should be able to give reasons for everything, but that it limits the reach of reasons by tying them to particular reasoning-practices that they cannot themselves justify. I end by comparing and reconciling Wittgenstein’s dichotomy between chains of reasons and chains of causes with seemingly competing construals of the dichotomy, and I clarify its relation to the dichotomy between explanation and justification. (shrink)

This paper proposes a new explanation for the paradoxes related to anthropic reasoning. Solutions to the Sleeping Beauty Problem and the Doomsday argument are discussed in detail. The main argument can be summarized as follows: -/- Our thoughts, reasonings and narratives inherently comes from a certain perspective. With each perspective there is a center, or using the term broadly, a self. The natural first-person perspective is most primitive. However we can also think and express from others’ perspectives with a theory (...) of mind. A perspective’s center could be unrelated to the topic of discussion so its de se thoughts need not to be considered, e.g. the perspective of an outside observer. Let’s call these the third-person perspective. First-person reasoning allows primitive self identification as I am inherently unique as the center of the perspective. Whereas from third-person perspective I am not fundamentally special comparing to others so a reference class of observers including me can be defined. It is my contention that reasonings from different perspectives should not mix. Otherwise it could lead to paradoxes even independent of anthropic reasoning. The paradoxes surrounding anthropic reasoning are caused by the aforementioned perspective mix. Regarding the sleeping beauty problem the correct answer should be double halving. Lewisian halving and thirding uses unique reasonings from both first and third-person perspectives. Indexical probabilities such as “the probability that this is the first awakening” or “the probability of me being one of the first 100 billion human beings” also mixes first- and third-person reasonings. Therefore invalid. Readers against perspectivism may disagree with point 1 and suggest we could reason in objective terms without the limit of perspectives. My argument is compatible with this belief. Objective reasoning would be analytically identical to the third-person perspective. My argument would become that objective reasoning and perspective reasonings should not mix. In the following I would continue to use “third-person perspective” but readers can switch that to “objective reasoning” if they wish so. (shrink)

Aristotle distinguishes between four causes (Phy., B, 3; PsA, B, 11, 94a20-24): a) Material cause: that from which; the antecedent out of which a thing comes to be and persists. E.g. the bronze of the statue; the silver of the bowl b) Formal cause: essence; the form or the archetype, i.e. the statement of the essence and its genera and the parts in definition; the whole and the co-positing. E.g. the relation 2:1 and generally number as cause of the (...) octave c) Efficient cause: the primary source of the change or coming to rest. E.g. The seed, the advisor and the father; generally: what makes of what is made and what causes change of what is changed. d) Final cause: cause in the sense of end or the good or that for the sake of which a thing is done. E.g. health as the cause of walking about The four causes are causes of the thing as it is itself. As the word cause has several senses, there are several causes of the same thing as that thing and not merely in virtue of a concomitant attribute: ‘Both the art of the sculptor and the bronze are causes of the statue. These are causes of the statue qua statue, not in virtue of anything else that it may be- only not in the same way.’ (Phy., B, 3) 1) Other senses of cause Aristotle distinguishes proper from accidental cause: while it is its sculptor who is the proper cause of a statue, Socrates, the sculptor, is the accidental cause. (Phy., B, 3) Moreover, he distinguishes potential from actual cause, the ‘house builder’ from ‘house-builder building.’ (Phy., B, 3) In Physics (B, 3) Aristotle makes three distinctions between causes by their multiplication he achieves twelve sorts of causes: ‘All these various uses, however, come to six in number, under each of which again the usage is twofold. Cause means either what is particular or a genus, or an incidental attribute or a genus of that, and these either as a complex or each by itself; and all six either as actual or as potential.’ In Metaphysics (Λ, 1069b32-34) he distinguishes between three causes: ‘The causes and the principles, then, are three, two being the pair of contraries of which one is formula and the form and the other is privation, and the third being the matter.’ 2) Cause and knowledge A question is indeed a search for the cause. (e.g. PsA., B, 11, 94a36-38) Knowing the cause is the necessary condition of scientific knowledge (PsA., B, 11, 94a20-21) In fact, ‘men do not think they know a thing till they have grasped the ‘why’ of (which is to grasp the primary cause).’ (Phy., A, 1) ‘To know the essential nature of a thing is the same as to know the cause of a thing’s existence.’ (PsA., B, 8, 93a4-5) ‘Where demonstration is possible,’ Aristotle says, ‘one who can give no account which includes the cause has no scientific knowledge. If, then, we suppose a syllogism in which, though A necessarily inheres in C, yet B, the middle term of the demonstration, is not necessarily connected with A and C, then the man who argues thus has no reasoned knowledge of the conclusion, since this conclusion does not owe its necessity to the middle term: for though the conclusion is necessary, the mediating link is a contingent fact.’ (PsA., A, 6, 74b) . (shrink)

Recently, many have argued that there are certain kinds of abstract mathematical explanations that are noncausal. In particular, the irrelevancy approach suggests that abstracting away irrelevant causal details can leave us with a noncausal explanation. In this paper, I argue that the common example of Renormalization Group explanations of universality used to motivate the irrelevancy approach deserves more critical attention. I argue that the reasons given by those who hold up RG as noncausal do not stand up to critical (...) scrutiny. As a result, the irrelevancy approach and the line between casual and noncausal explanation deserves more scrutiny. (shrink)

This chapter will discuss Spinoza’s critique of free will, though our brief study of this topic in the first part of the chapter will aim primarily at preparing us to address the main topic of the chapter, which is Spinoza’s explanation of the reasons which force us to believe in free will. At times, Spinoza seems to come very close to asserting the paradoxical claim that we are not free to avoid belief in free will. In the second part (...) of the chapter I will closely examine Spinoza’s etiological explanation of how we come to form the belief in free will. In the third part, I will raise and respond to a crucial objection to Spinoza’s explanation of the formation of our belief in free will. I will then turn to examine Fichte’s intriguing claim that Spinoza’s position on the issue of free will suffers from an internal contradiction, as evinced in Fichte’s suggestive remark: “Spinoza could not have been convinced of his own philosophy. He could only have thought of it; he could not have believed it [Er konnte seine Philosphie nur denken, nicht sie glauben].”. (shrink)

Over the last two decades there has been a growing interest in the transcendental dialectic of Critique of Pure Reason in Germany. Authors, however, often do not pay enough attention to the fact that Kant’s theory of reason (in the narrow sense) and the concept of ideas derived from it is not limited to this text. The purpose of this article is to compare and analyze the functionality of mind as a subjective ability developed by Kant and Fichte with the (...) Hegelian expansion of the mind to the idea of universal rationality. The relevance of such a comparison is connected with the need to demonstrate how the Hegelian paradigm of absolute rationality causes either the subsequent rejection of reason as a philosophical principle in the 19th and´20th centuries counter-discourse, or reduction of reason to the concept of pragmatic rationality. In the first part of this paper, the author intends to differentiate between at least 7 different types of ideas and their functions in Kant’s works. In the second part, he demonstrates how Fichte tries to systematize them beginning with reason, which at first creates an idea of itself. Special attention is paid to the way that Fichte categorizes them with the help of 5 spheres of action or 5 worldviews. The third and final part of the article discusses how Hegel goes beyond the frame of the transcendental philosophy of consciousness using different demands linked to the concepts of “reason” and “ideas”. Although these requirements are not found in Kant and Fichte, they entail a set of difficulties, which the author considers in conclusion. The author’s interpretation of the theory of ideas and their functions in Kant, Fichte and Hegel demonstrates the dynamic character of the theories of reason in classical German philosophy, as well as the relevance of the 7 types of ideas that retain their significance for philosophy of the 21st century. Keywords: Kant and German idealism, types of ideas, functions of reason, worldviews, the problem of different demands. В Германии на протяжении последних двух десятилетий возрос интерес к трансцендентальной диалектике «Критики чистого разума». Однако авторы часто не обращают внимания на то, что кантовская теория разума (в узком смысле), в которой разворачивается работа с идеями, не ограничивается этим текстом. Целью данной статьи является сравнительный анализ разработанной Кантом и Фихте функциональности разума как субъективной способности с гегелевским расширением разума до идеи всеобщей разумности. Актуальность такого сравнения связана с необходимостью продемонстрировать то, каким образом гегелевская парадигма абсолютной разумности вызывает либо последующий отказ от разума как философского принципа в контрдискурсе XIX–XX вв., либо редукцию разума к понятию прагматической рациональности. В первой части данной статьи вводится различение по меньшей мере семи различных видов идей и связанных с ними функций в философии Канта. Во второй части демонстрируется попытка Фихте их систематизировать исходя из утверждения том, что разум должен сначала создать идею о самом себе. Проанализировано также предложенное Фихте распределение идей на пять сфер действенности или типов мировоззрения. В третьей, итоговой части статьи рассмотрен выход гегелевской мысли за рамки трансцендентальной философии сознания. Автор статьи связывает этот процесс с выдвижением не осуществимых в контексте философии Канта и Фихте требований к понятиям «разум» и «идея» и анализирует ряд сложностей, вызванных этими требованиями. Таким образом, интерпретация учения об идеях и их функциях у Канта, Фихте и Гегеля демонстрирует динамический характер теорий разума в классической немецкой философии и актуальность семи видов идей, которые сохраняют свое значение для философии XXI в. Ключевые слова: Кант и немецкий идеализм, виды идей, функции разума, мировоззрение, проблема различных требований. (shrink)

Some opponents of abortion claim that fetuses are persons from the moment of conception. Following Berg (2017), let us call these individuals “Personhood-At-Conception” (or PAC), opponents of abortion. Berg argues that if fetuses are persons from the moment of conception, then miscarriage kills far more people than abortion. As such, PAC opponents of abortion face the following dilemma: They must “immediately” and “substantially” shift their attention, resources, etc., toward preventing miscarriage or they must admit that they do not actually believe (...) that fetuses are persons from the moment of conception (or, at least, they must recognize that they are not acting in ways that are consistent with this belief). In this essay, I show that Berg’s argument fails at each step. Specifically, after outlining her argument (in section 1), I consider the central claim of Berg’s style of argument: That “miscarriage…is much deadlier than abortion.” In section 2, I argue that this claim is false (when taken literally) and misleading otherwise. In section 3, I show that Berg’s style of argument is identical in structure to a criticism that is sometimes levied against the recent “Black Lives Matter” movement. In the latter context, the argument has been vehemently rejected. I argue that Berg’s style of argument should be rejected for the same reasons. Finally, in section 4, I show that Berg’s suggestion that opponents of abortion should divert “substantial” amounts of money and attention to miscarriage prevention faces two problems. First, these claims are made without any evidence regarding the actual priorities and spending habits of PAC opponents of abortion. If we are told “not enough is being done,” one wonders: What is being done and how much counts as “enough”? Berg gives no answer to either question. Second, even if it is true that opponents of abortion do not pay substantial attention to miscarriage prevention, Berg fails to notice that this may be for good reason. I conclude that PAC opponents of abortion do not face the dilemma that Berg presents. (shrink)

Non-causal accounts of action explanation have long been criticized for lacking a positive thesis, relying primarily on negative arguments to undercut the standard Causal Theory of Action The Stanford Encyclopedia of Philosophy, 2016). Additionally, it is commonly thought that non-causal accounts fail to provide an answer to Donald Davidson’s challenge for theories of reasons explanations of actions. According to Davidson’s challenge, a plausible non-causal account of reasons explanations must provide a way of connecting an agent’s reasons, not (...) only to what she ought to do, but to what she actually does. That is, such explanations must be truth-apt, not mere rationalizations. My aim in this paper is to show how a non-causal account of action can provide explanations that are truth-apt and genuinely explanatory. To make this argument, I take as a given an account of the practical syllogism discussed by Michael Thompson and Eric Wiland, according to which the practical syllogism is truly practical rather than propositional in nature. Next, I present my primary positive thesis: reasons for actions have explanatory power in virtue of being parts of a structure—the practical syllogism—that contains the action being explained. I then argue that structural action explanations can meet Davidson’s challenge and that they genuinely explain actions. Finally, I conclude by addressing some objections to my argument. (shrink)

The main focus of this paper is the question as to what it is for an individual to think of her environment in terms of a concept of causation, or causal concepts, in contrast to some more primitive ways in which an individual might pick out or register what are in fact causal phenomena. I show how versions of this question arise in the context of two strands of work on causation, represented by Elizabeth Anscombe and Christopher Hitchcock, respectively. I (...) then describe a central type of reasoning that, I suggest, a subject has to be able to engage in, if we are to credit her with causal concepts. I also point out that this type of reasoning turns on the idea of a physical connection between cause and effect, as articulated in recent singularist approaches of causation. (shrink)

It is often argued that there are no practical reasons for belief because we could not believe for such reasons. A recent reply by pragmatists is that we can often believe for practical reasons because we can often cause our beliefs for practical reasons. This paper reveals the limits of this recently popular strategy for defending pragmatism, and thereby reshapes the dialectical options for pragmatism. I argue that the strategy presupposes that reasons for being in (...) non-intentional states are not reducible to reasons to act. Pragmatists who want to preserve a motivational constraint on reasons therefore have exactly two options: either arguing that there are irreducible reasons for being in non-intentional states ; or arguing that we can believe directly for practical reasons. I argue that the prospects for the former option are dim because irreducible reasons to be in states are hard to square with the motivational constraint on reasons. Returning to the more traditional route of arguing for pragmatism by defending a version of doxastic voluntarism therefore seems to be the more promising way for pragmatists to go. (shrink)

The argument from reason states that if naturalism is true, then our beliefs are caused by physical processes rather than being causally based in their reasons, so our beliefs are not knowledge—including the belief in naturalism itself. Recent critics of the argument from reason provide dual process replies to the argument from reason—our beliefs can have both a naturalistic cause/ explanation and be caused/explained by its reasons, thereby showing that naturalism can accommodate knowledge. In this paper I consider (...) three dual process replies and conclude that none of them are successful. (shrink)

Mental explanations of behaviour are physical explanations of a special kind. Mental events are physical events. Mental explanations of physical behaviour are not mysterious, they designate events with physical causal powers. Mentalistic terms differ from physicalistic ones in the way they specify events: the former cite extrinsic properties, the latter intrinsic properties. The nature of explanation in general is discussed, and a naturalistic view of intentionality is proposed. The author shows why epistemological considerations rule out the elimination of "mentalistic talk" (...) from explanations of behaviour. (shrink)

Susan Wolf’s compatibilism is unique for being ‘asymmetrical.' While holding that blameworthiness entails being able to avoid acting wrongly, she maintains that our freedom consists in single-mindedly pursuing Truth and Goodness. Comparing and contrasting her position to Saint Anselm’s seminal, libertarian approach to the same subject elicits serious questions, highlighting its drawbacks. How could freedom entail the inability to do certain things? In what sense are reasons causes? What sense can be made of a double standard for assignments (...) of responsibility? Is not self-control inconsistent with being caused to act by things independent of oneself? Does not virtue require struggling against falsehoods and evils by which one could be overcome? Wolf’s compatibilism must be rejected, I shall argue, in light of Anselm’s intuitively satisfying response to these concerns: we should prefer a philosophy that entails more of what we want from freedom without begging unanswerable questions of its own. (shrink)

This invited article is a response to the paper “Quantum Misuse in Psychic Literature,” by Jack A. Mroczkowski and Alexis P. Malozemoff, published in this issue of the Journal of Near-Death Studies. Whereas I sympathize with Mroczkowski’s and Malozemoff’s cause and goals, and I recognize the problem they attempted to tackle, I argue that their criticisms often overshot the mark and end up adding to the confusion. I address nine specific technical points that Mroczkowski and Malozemoff accused popular writers in (...) the fields of health care and parapsychology of misunderstanding and misrepresenting. I argue that, by and large—and contrary to Mroczkowski’s and Malozemoff’s claims—the statements made by these writers are often reasonable and generally consistent with the current state of play in foundations of quantum mechanics. (shrink)

Despite its central role in our cognitive lives, rational belief revision has received relatively little attention from epistemologists. This dissertation begins to fill that absence. In particular, we explore the phenomenon of defeasible epistemic justification, i.e., justification that can be lost as well as gained by epistemic agents. We begin by considering extant theories of defeat, according to which defeaters are whatever cause a loss of justification or things that somehow neutralize one's reasons for belief. Both of these theories (...) are both extensionally and explanatorily inadequate and, so, are rejected. We proceed to develop a novel theory of defeat according to which defeaters are reasons against belief. According to this theory, the dynamics of justification are explained by the competition between reasons for and reasons against belief. We find that this theory not only handles the counter-examples that felled the previous theories but also does a fair job in explaining the various aspects of the phenomenon of defeat. Furthermore, this theory accomplishes this without positing any novel entities or mechanisms; according to this theory, defeaters are epistemic reasons against belief, the mirror image of our epistemic reasons for belief, rather than sui generis entities. (shrink)

This thesis justifies the need for and develops a new integrated model of practical reasoning and argumentation. After framing the work in terms of what is reasonable rather than what is rational (chapter 1), I apply the model for practical argumentation analysis and evaluation provided by Fairclough and Fairclough (2012) to a paradigm case of unreasonable individual practical argumentation provided by mass murderer Anders Behring Breivik (chapter 2). The application shows that by following the model, Breivik is relatively easily able (...) to conclude that his reasoning to mass murder is reasonable – which is understood to be an unacceptable result. Causes for the model to allow such a conclusion are identified as conceptual confusions ingrained in the model, a tension in how values function within the model, and a lack of creativity from Breivik. Distinguishing between dialectical and dialogical, reasoning and argumentation, for individual and multiple participants, chapter 3 addresses these conceptual confusions and helps lay the foundation for the design of a new integrated model for practical reasoning and argumentation (chapter 4). After laying out the theoretical aspects of the new model, it is then used to re-test Breivik’s reasoning in light of a developed discussion regarding the motivation for the new place and role of moral considerations (chapter 5). The application of the new model shows ways that Breivik could have been able to conclude that his practical argumentation was unreasonable and is thus argued to have improved upon the Fairclough and Fairclough model. It is acknowledged, however, that since the model cannot guarantee a reasonable conclusion, improving the critical creative capacity of the individual using it is also of paramount importance (chapter 6). The thesis concludes by discussing the contemporary importance of improving practical reasoning and by pointing to areas for further research (chapter 7). (shrink)

This article asks whether a country that suffers from serious environmental problems caused by another country could have a just cause for a defensive war? Danish philosopher Kasper Lippert-Rasmussen has argued that under certain conditions extreme poverty may give a just cause for a country to defensive war, if that poverty is caused by other countries. This raises the question whether the victims of environmental damages could also have a similar right to self-defense. Although the article concerns justice of war, (...) we will concentrate only on the issue of what can be just causes of war, instead of evaluating the entire justification of war. This is to say that we will limit our discussion to the question concerning just cause and leave aside more general questions concerning justness and moral permissibility of war. Our aim is to list the questions that must be made and settled if defensive war in the case of serious environmental problems is said to have (or not to have) a just cause. We will argue that there are three questions that are most important in this context. They are the question concerning liability, the question of collective responsibility, and the question whether environmental harms may create a “sufficient reason” for raising a war. (shrink)

While the nature of the virtues and their role in human action are controversial, we wish to explore the thesis that virtues play a causal role in the production of action. One fruitful, though controversial, approach to understanding the nature of the self is through the notion of a narrative and in particular a person’s self narrative or narratives. Similarly we wish to explore the thesis that self narratives play a causal role in action. We consider how virtues and self-narratives (...) interrelate and, in particular, how they play a comparable role in the production of action. The basic ideas in the literature concerning reasons as causes of action provide us with a useful starting point even though the focus on reasons has tended to sideline potential causal roles for both virtues and self-narratives. Without attempting to develop a new theory of causation, we draw a picture of how virtues and self-narratives, in relation to each other, can be regarded as causally effective in producing action. (shrink)

While practitioners think highly of randomized studies, some philosophers argue that there is no epistemic reason to randomize. Here I show that their arguments do not entail their conclusion. Moreover, I provide novel reasons for randomizing in the context of interventional studies. The overall discussion provides a unified framework for assessing baseline balance, one that holds for interventional and observational studies alike. The upshot: practitioners’ strong preference for randomized studies can be defended in some cases, while still offering a (...) nuanced approach to evidence-appraisal, one where not all non-randomized studies are treated equally. (shrink)

In his work on reasons Dretske argues that reasons are only worthwhile for having them if they are causally relevant for explaining behaviour, which he elaborates in his representational theory of explanation. The author argues against this view by showing that there are reasons that are relevant for explaining behaviour but not causally relevant. He gives a linguistic foundation of his argumentation and shows that Dretske’s representational theory cannot explain human actions because man does not only perceive (...) things that have already meaning but also assigns meanings to what (s)he perceives and that therefore reasons are fundamentally different from causes. (shrink)

Pragmatic vindicatory genealogies provide both a cause and a rationale and can thus affect the space of reasons. But how far is the space of reasons affected by this kind of genealogical argument? What normative and evaluative implications do these arguments have? In this paper, I unpack this issue into three different sub-questions and explain what kinds of reasons they provide, for whom are these reasons, and for what. In relation to this final sub-question I argue, (...) most importantly, that these arguments are ambiguous about what they give us reasons for, meaning that they can be interpreted both as justifications for recognizing the normative standing of certain norms, values, and practices - and thus for living by them - and as excuses for those that do so. I illustrate this point by reference to the genealogical vindication of honour cultures, showing how the vindicatory argument can illuminate such case as one of excusing moral ignorance. Drawing on legal theory and moral philosophy, I show that different evaluative and normative implications hang on the result of the interpretation as either justification or excuse, and show that this ambiguity is a virtue rather than a limitation. (shrink)

This chapter distinguishes between several senses of “normativity”. For example, that we ought to abstain from causing unnecessary suffering is a normative, not descriptive, claim. And so is the claim that we have good reason, and ought to drive on the right, or left, side of the road because the law requires us to do that. Reasons and oughts are normative, by definition. Indeed, it may be that “[t]he normativity of all that is normative consists in the way it (...) is, or provides, or is otherwise related to reasons” (Raz 1999, 67) . That is what the “reasons-first” view holds, but there are also other views, and what is by definition a normative statement, or a normative fact if you like, depends on how we define normativity. -/- It may seem that requirements are also by definition normative. But it seems that there can also be requirements that one has no reason to meet: it is less clear whether such requirements are normative in the same sense that reasons and oughts are normative. This paper will go through various further phenomena, which are candidates for being normative in some other sense than normative reasons and oughts, defending however the view that not all of them are. But arguably four or so different senses of normativity can be distinguished. -/- The paper will accept the view that the normativity of reasons and oughts, which is here called normativity1, is central. It is an open question whether all requirements or expectations or socially constructed norms are normative in that sense. Arguably it depends on the contents and content-independent authority of the legislators, whether we have good reasons, or ought, to meet the requirements, obey the law, or to follow the etiquette, or to conform to others’ interpersonal expectations, requests, demands or prescriptions. Whether and when we do have such reasons is a difficult and important substantive question, which concerns the normativity1 of requirements of law. -/- In another sense, norms (intended to guide behavior) are trivially or by definition normative, and constitute normativity: some forms of behavior are ruled as acceptable (e.g. driving on the right) and others as unacceptable (e.g. driving on the left) in light of the norm. Even in the case of a bad norm (that we have no reason to follow, and which ought to be changed, and ought not prevail) classifies behaviours as acceptable or unacceptable in light of the norm. Surely norms are by definition normative? Call this conformity to social norms and actual expectations normativity2. It is not an open question whether social norms are normative in that sense – they are by definition normative2. But importantly, it is an open question whether one has good reasons, or sufficient reason, or ought, to follow any social norm – that is, whether the norm in question is normative1. -/- The first section of the article characterizes further the difference between these two senses of normativity, and additionally introduces various other candidate senses of “normativity”. These possible senses of “normativity” may be at stake in the debates about normative requirements of rationality , about so called ought-to-be -rules , about normativity of linguistic meaning , about “directions of fit” of beliefs and desires , about subjective authority of intentions and decisions and interpersonal authority or co-authority of concrete others. -/- In later sections these cases are discussed. Do they constitute separate senses of normativity? And are the later phenomena such that they give agents good reasons: do they include normativity1 – the core sense? A “normative power -model” is suggested as a framework for examining whether actual social norms, laws, expectations provide good reasons and oughts or not. Once we understand the relation between the first two senses of normativity, do the later phenomena follow the same pattern – is the “normative powers – model” relevant for them as well? (shrink)

People seem more divided than ever before over social and political issues, entrenched in their existing beliefs and unwilling to change them. Empirical research on mechanisms driving this resistance to belief change has focused on a limited set of well-known, charged, contentious issues and has not accounted for deliberation over reasons and arguments in belief formation prior to experimental sessions. With a large, heterogeneous sample (N = 3,001), we attempt to overcome these existing problems, and we investigate the (...) class='Hi'>causes and consequences of resistance to belief change for five diverse and less contentious socio-political issues. After participants chose initially to support or oppose a given socio-political position, they were provided with reasons favoring their chosen position (affirming reasons), reasons favoring the other, unchosen position (conflicting reasons), or all reasons for both positions (reasons for both sides). Our results indicate that participants are more likely to stick with their initial decisions than to change them no matter which reasons are considered, and that this resistance to belief change is likely due to a motivated, biased evaluation of the reasons to support their initial beliefs (prior-belief bias). More specifically, they rated affirming reasons more favorably than conflicting reasons—even after accounting for reported prior knowledge about the issue, the novelty of the reasons presented, and the reported strategy used to make the initial decision. In many cases, participants who did not change their positions tended to become more confident in the superiority of their positions after considering many reasons for both sides. (shrink)

We argue that legal argumentation, as the subject matter as well as a special subfield of Argumentation Studies (AS), has to be examined by making skilled use of the full panoply of tools such as argumentation and story schemes which are at the forefront of current work in AS. In reviewing the literature, we make explicit our own methodological choices (particularly regarding the place of normative deliberation in practical reasoning) and then illustrate the implications of such an approach through the (...) analysis of a case study in the English law of evidence. We argue that a clear distinction must be drawn between practical argumentation and stories. Because of the institutional separation between legal judgment and fact-finding in common-law jury trials, we argue for the combination of argument and story-based analysis. (shrink)

When people want to identify the causes of an event, assign credit or blame, or learn from their mistakes, they often reflect on how things could have gone differently. In this kind of reasoning, one considers a counterfactual world in which some events are different from their real-world counterparts and considers what else would have changed. Researchers have recently proposed several probabilistic models that aim to capture how people do (or should) reason about counterfactuals. We present a new model (...) and show that it accounts better for human inferences than several alternative models. Our model builds on the work of Pearl (2000), and extends his approach in a way that accommodates backtracking inferences and that acknowledges the difference between counterfactual interventions and counterfactual observations. We present six new experiments and analyze data from four experiments carried out by Rips (2010), and the results suggest that the new model provides an accurate account of both mean human judgments and the judgments of individuals. (shrink)

A common objection to probabilistic theories of causation is that there are prima facie causes that lower the probability of their effects. Among the many replies to this objection, little attention has been given to Mellor's (1995) indirect strategy to deny that probability-lowering factors are bona fide causes. According to Mellor, such factors do not satisfy the evidential, explanatory, and instrumental connotations of causation. The paper argues that the evidential connotation only entails an epistemically relativized form of causal (...) attribution, not causation itself, and that there are clear cases of explanation and instrumental reasoning that must appeal to negatively relevant factors. In the end, it suggests a more liberal interpretation of causation that restores its connotations. Una objeción común a las teorías probabilísticas de la causalidad es que aparentemente existen causas que disminuyen la probabilidad de sus efectos. Entre las muchas respuestas a esta objeción, se le ha dado poca atención a la estrategia indirecta de D. H. Mellor (1995) para negar que un factor que disminuya la probabilidad de un efecto sea una causa legítima. Según Mellor, tales factores no satisfacen las connotaciones evidenciales, explicativas e instrumentales de la causalidad. El artículo argumenta que la connotación evidencial sólo implica una forma epistémicamente relativizada de atribución causal y no la causalidad misma, y que hay casos claros de explicación y razonamiento instrumental que deben apelar a factores negativamente relevantes. Se sugiere una interpretación más liberal de la causalidad que reinstaura sus connotaciones. (shrink)

Attempts to evaluate a belief or argument on the basis of its cause or origin are usually condemned as committing the genetic fallacy. However, I sketch a number of cases in which causal or historical factors are logically relevant to evaluating a belief, including an interesting abductive form that reasons from the best explanation for the existence of a belief to its likely truth. Such arguments are also susceptible to refutation by genetic reasoning that may come very close to (...) the standard examples given of supposedly fallacious genetic reasoning. (shrink)

What is the role of the principle of sufficient reason in Baruch Spinoza’s ontological proof for God’s existence? Is this role identical within Spinoza’s early work on method, the Treatise on the Emendation of the Intellect, and his magnum opus, the Ethics? This paper argues affirmatively that the methodology employed within the Ethics is consonant with that method found within the Treatise, and this claim is substantiated through an engagement with the influential works of Don Garrett and Aaron Garrett. It (...) is also demonstrated through an original reconstruction of the Treatise itself. In this reconstruction, basic premises are identified which can validly prove Spinoza’s intended conclusion of substance monism. It is finally determined that what the Treatise and the Ethics share, specifically, is a methodology which begins with non-nominal definitions that denote the real, sufficient causes of their respective objects. However, at certain junctures, this methodology is expressed with greater consistency within the Treatise as opposed to within the Ethics. Evidence for this will be provided from the primary texts themselves and from the subsequent analyses of Don Garrett and Aaron Garret as well. (shrink)

In this paper I offer a close reading of Aristotle’s argument in the Nicomachean Ethics 3.5.1114a31–b25 and try to show that despite considerable interpretive difficulties, some clear structure can nevertheless be discerned. While Aristotle’s main concern in this passage is to refute the so-called asymmetry thesis – the thesis that virtue is voluntary, but vice is not – there is much more in it than just a dialectical encounter. Aristotle wants to respond to a more general objection, which has as (...) its target the voluntariness of both virtue and vice, and which is provoked by some of his ideas in EN 3.4 and 3.5. Further, I will try to show why Aristotle thinks that we are only co-causes of our dispositions. In my opinion, his reasons have nothing to do with compatibilist or incompatibilist considerations as they are commonly understood in modern philosophy. In particular, he does not want to argue that nature is aitios of our dispositions just as ourselves are. Rather, we are co-causes of our dispositions because we are causal origins of actions without which a certain good, which is the final cause of our actions and of our dispositions, cannot be achieved. Finally, I will try to show that Aristotle’s discussion implies that there is no more to the responsibility for dispositions than there is to the responsibility for actions. (shrink)

In _The Sources of Normativity_, Christine M. Korsgaard argues that unconditional obligation can be accounted for in terms of practical identity. My argument in this paper is that practical identity cannot play this foundational role. More specifically, I interpret Korsgaard's argument as beginning with something analogous to Kant's fact of reason, viz. with the fact that our minds are reflective. I then try to show that her determination of this fact is inadequate and that this causes the argument concerning (...) practical identity to fail. Finally, I argue that a conception of the fact of reason more in line with what I take to be Kant's own is necessary to account for unconditional obligation. (shrink)

An advanced artificial intelligence could pose a significant existential risk to humanity. Several research institutes have been set-up to address those risks. And there is an increasing number of academic publications analysing and evaluating their seriousness. Nick Bostrom’s superintelligence: paths, dangers, strategies represents the apotheosis of this trend. In this article, I argue that in defending the credibility of AI risk, Bostrom makes an epistemic move that is analogous to one made by so-called sceptical theists in the debate about the (...) existence of God. And while this analogy is interesting in its own right, what is more interesting are its potential implications. It has been repeatedly argued that sceptical theism has devastating effects on our beliefs and practices. Could it be that AI-doomsaying has similar effects? I argue that it could. Specifically, and somewhat paradoxically, I argue that it could amount to either a reductio of the doomsayers position, or an important and additional reason to join their cause. I use this paradox to suggest that the modal standards for argument in the superintelligence debate need to be addressed. (shrink)

Athenaeus of Attalia distinguishes two types of exercise or training (γυμνασία) that are required at each stage of life: training of the body and training of the soul. He says that training of the body includes activities like physical exercises, eating, drinking, bathing and sleep. Training of the soul, on the other hand, consists of thinking, education, and emotional regulation (in other words, 'philosophy'). The notion of 'training of the soul' and the contrast between 'bodily' and 'psychic' exercise is common (...) in the Academic and Stoic traditions Athenaeus is drawing from; however, he is the earliest extant medical author to distinguish these kinds of training and to treat them as equally important aspects of regimen. In this paper, I propose some reasons why he found this distinction useful, and I examine how he justified incorporating it into his writings on regimen, namely by attributing Plato's beliefs about regimen to Hippocrates, a strategy Galen would adopt well over a century later. (shrink)

The “film as philosophy” (FAP) hypothesis turned into a field if its own right during the 2000s, after S. Mulhall’s On Film (2001). In this work, Mulhall defended that some films philosophize for themselves. This caused controversy. Around the same time of On Film’s release, B. Russell published the article “The philosophical limits of film” (2000). This article had one of the first attacks against FAP, posing some main objections based on metaphilosophical grounds, which were called the “generality” and the (...) “explicitness” objections. These objections made by Russell and by M. Smith are based on the idea that film and philosophy are too different in their purposes or ways of presentation, ideas that are grounded in implicit or explicit conceptions of philosophy. In this chapter, these will be analyzed, as well as some other metaphilosophically grounded objections, as a line of reasoning connecting to attempts of responding to them will be drawn. After doing so, it will be concluded that their metaphilosophical grounds are implausible, and, thus, they are not definite objections against FAP. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Epistemic Leaks and Epistemic Meltdowns: A Response to William Morris on Scepticism with Regard to Reason Mikael M. Karlsson I. In an excellent paper which appeared in the April, 1989 issue of this journal,2 William Morris attemptsto demonstrate thatthe arguments which make up Hume's notorious chapter, "Of scepticism with regard to reason, are, in the first place, coherent—both internally and with the overall strategy of the Treatise—and, in the (...) second place, successful. Morris' paper is an exercise in the noble art of what I style constructive exegesis, an enterprise to which many readers of Hume Studies, and myself as much as any, are committed. It is a guiding principle ofthis art that we donotunderstandaphilosophical textuntil we can interpret it in such a way as to render it both coherent and correct. From this point ofview, coherence and correctness are not as independent of one another as they may seem to be to others who are differently committed. Some texts, such as Hume's chapter, "Ofscepticism with regard to reason," are notoriously resistant to constructive exegesis, despite the formidable bag of tricks which scholars and interpreters have developed; so resistant, that in gloomier moments we may be brought to wonder about our interpretative enterprise itself. Constructive exegesis is indeed a strange, and peculiarly optimistic, enterprise. Someday, I imagine, in a leisurely moment, I will think more reflectively about the principles ofour art. But not now.6 As a fellow practitioner of constructive exegesis, I am in full sympathy with what Morris tries to do in his paper; and I think that he does contribute substantially to our understanding of what Hume is up to in the chapter, "Ofscepticism with regard to reason." The third section of Morris' paper is, in my judgement, particularly successful in showing how Hume's chapter fits into the larger framework of the Treatise: Hume is, we see, attacking both what Morris labels "intellectualist rationalism" and its counterpart, which we may call 'unmitigated scepticism', although the chapter's two main arguments go primarily to the former. I also think that Morris gives very helpful, Volume XVI Number 2 121 MIKAEL M. KARLSSON and to my mind accurate, accounts of these two arguments, which I dub, respectively, the epistemic leak argument, and the epistemic meltdown argument. However, I have personally never found either of these arguments remotely convincing; and I still do not, despite Morris' clarification and defense. In what follows, I shall indicate some ofthe reasons for my dissatisfaction.?. Theepistemicleakargumentpurportsto"prove"(in Hume's sense)that reason or demonstration cannot support knowledge. Morris rightlyreminds us that whatHume meansby knowledge is perfect assurance or conviction: Knowledge is, in short, subjective certainty. This has caused confusion, for this is not what we usually mean nowadays by knowledge; nor was it what people, philosophers included, generally meant prior to Descartes. In Hume itis the product ofthe attempttoresolve all epistemic statesintomental eventsorwhat he calls "perceptions." In any case, we must—as Morris rightly explains—be clear that the epistemic leak argument is aimed at showing that demonstration cannot supportperfect conviction. Inoutline, the argumentissimple: Itworks, asMorrismakes clear, by shifting attention away from the subject-matter or "objects" of demonstration, that is, relations of ideas, to the exercise of demonstrative reason by human agents. The necessity of relations of ideas may suggest to us that we can be certain about them. Against this, one may point out that people do err in the conclusions arrived at by demonstration; this presumably shows that our (rational) understandingis fallible. And once we recognize this, our confidence in any conclusion produced by exercising this facultyislessened—thus do we move from knowledge, or subjective certainty, toprobability: belief, or imperfect conviction. Arguments ofthis general type (we can call them, using Descartes' famous figure, Totten-apple arguments ) were around long before Hume, although they were more commonly directed against the senses than against reason. We find them in antiquity—in Plato and Sextus Empiricus, for instance —and in Descartes, in parallel passages in the Discourse on Method, the First Meditation and the Principles of Philosophy, wherein one can discern a version directed precisely against reason and demonstration.12 To find out what, if anything, Hume has... (shrink)

Canonical defenders of the principle of sufficient reason (PSR), such as Leibniz and Spinoza, are metaphysical foundationalists of one stripe or another. This is curious since the PSR—which says that everything has a ground, cause, or explanation—in effect, denies fundamental entities. In this paper, I explore the apparent inconsistency between metaphysical foundationalism and approaches to metaphysical system building that are driven by a commitment to the PSR. I do so by analyzing how Indian Buddhist philosophers arrive at foundationalist and anti-foundationalist (...) positions motivated by implicit commitments to different versions of the PSR. I begin by introducing the Buddhist principle of dependent origination (pratītyasamutpāda) as a proto-PSR that is restricted to causal explanation. Next, I show how Vasubandhu’s Sautrāntika Abhidharma metaphysics is shaped by a qualified commitment to both causal and metaphysical grounding versions of the PSR. I then reveal how Nāgārjuna’s Madhyamaka metaphysics is driven by an unrestricted and exceptionless commitment to causal and metaphysical grounding versions of the PSR. Finally, I consider how Nāgārjuna’s account may put him in a unique position to respond to a common contemporary objection to the PSR from necessitarianism. I conclude by addressing a competing interpretation on which Nāgārjuna is best understood as an anti-rationalist rather than an uber-rationalist, as I characterize him. (shrink)

Traditionally, miracles have been defined as supernaturally caused events which are outside the scope of scientific explicability. In this paper I will criticize the argument that, when we lack a scientific explanation for an event but it has an adequate explanation in theistic terms, then the most reasonable conclusion is to claim that the event is a miracle. I will defend that this argument would not work unless we had prior independent evidence for God’s existence. Furthermore, I will argue that (...) even within a theistic worldview in which the reality of God were unquestioned, we would not be justified in claiming that an event is a miracle because we would not have sufficient knowledge of God’s intentions and purposes. (shrink)

Those who have emphasised Nietzsche's naturalism have often claimed that he emulates natural scientific methods by offering causal explanations of psychological, social, and moral phenomena. In order to render Nietzsche's method consistent with his methodology, such readers of Nietzsche have also claimed that his objections to the use of causal explanations are based on a limited scepticism concerning the veracity of causal explanations. My contention is that proponents of this reading are wrong about both Nietzsche's methodology and his method. I (...) argue for this by: first, showing that Nietzsche was suspicious of causal explanations not only on sceptical grounds but also for reasons provided by his psychological analysis of our tendency to look for causes; and second, arguing for a non-causal interpretation of Nietzsche's approach to psychological explanation. (shrink)

Lange’s collection of expanded, mostly previously published essays, packed with numerous, beautiful examples of putatively non-causal explanations from biology, physics, and mathematics, challenges the increasingly ossified causal consensus about scientific explanation, and, in so doing, launches a new field of philosophic investigation. However, those who embraced causal monism about explanation have done so because appeal to causal factors sorts good from bad scientific explanations and because the explanatory force of good explanations seems to derive from revealing the relevant causal (or (...) ontic) structures. The taxonomic project of collecting examples and sorting their types is an essential starting place for a theory of non-causal explanation. But the title of Lange’s book requires something further: showing that the putative explanations are, in fact, explanatory and revealing the non-causal source of their explanatory power. This project is incomplete if there are examples of putative non-causal explanations that fit the form but that nobody would accept as explanatory (absent a radical revision of intuitions). Here we provide some reasons for thinking that there are such examples. (shrink)

Why are we so many? Or, in other words, Why is our species so successful? The ultimate cause of our success as species is that we, Homo sapiens, are the first and the only Turing complete species. Turing completeness is the capacity of some hardware to compute by software whatever hardware can compute. To reach the answer, I propose to see evolution and computing from the problem solving point of view. Then, solving more problems is evolutionarily better, computing is for (...) solving problems, and software is much cheaper than hardware, resulting that Turing completeness is evolutionarily disruptive. This conclusion, together with the fact that we are the only Turing complete species, is the reason that explains why we are so many. Most of our unique cognitive characteristics as humans can be derived from being Turing complete, as for example our complete language and our problem solving creativity. (shrink)