By means of the Rollback Argument, this paper argues that metaphysically robust probabilities are incompatible with a kind of control which can ensure that free actions are not a matter of chance. Our main objection to those (typically agent-causal) theories which both attribute a kind of control to agents that eliminates the role of chance concerning free actions and ascribe probabilities to options of decisions is that metaphysically robust probabilities should be posited only if they can have a (...) metaphysical explanatory role but probabilities can explain anything only if chance has a role. First, we reconstruct the Rollback Argument. Second, we criticize the standard ways of reconciling non-chancy control with metaphysically robust probabilities. Finally, we respond to those worries that are related to the thought experiment of the Rollback Argument. (shrink)

결정론자는 행위자의 선택이 인과적으로 결정되어 있다고 믿는 반면 자유주의자는 그렇지 않다고 믿는다. 이 글은 자유주의에 대한 한 가지 비판을 다룬다. 세스 샤보(S. Shabo)는 「자유의지와 미스터리: 『마인드』주장을 넘어서」에서 반 인와겐(P. van Inwagen)의 역행 논증을 정교화하면서 자유주의에 대한 반론을 펼친다. 샤보는 어떻게 행위자가 인과적으로 비결정적인 두 가지 가능한 미래상황을 하나의 실제적 미래상황이 되도록 이끄는 결정력(the power to settle)을 가질 수 있는지에 대해 자유주의자가 설명해야 한다고 주장한다. 필자는 이 결정력에 대한 샤보의 비판을 반박하며 어떤 차원에서 행위자가 그것을 소유할 수 있는지에 대한 해명을 시도한다.BR (...) 필자는 2장과 3장에서 역행 논증과 더불어 결정력에 대한 샤보의 논증을 제시한다. 4장에서는 자유주의자에게 결정력을 설명하도록 요구하는 샤보의 주장이 왜 부당한지를 해명한다. 5장에서는 행위자의 선택이 어떤 점에서 행위자 자신에게 달려 있는 사안일 수 있는지에 대한 해명을 시도한다. 6장에서 필자는 역행 논증의 핵심을 재정립하고 그러한 재정립 후에도 여전히 그것이 자유주의를 무력화하기에는 역부족임을 논증한다. (shrink)

The ‘rollback argument,’ pioneered by Peter van Inwagen, purports to show that indeterminism in any form is incompatible with free will. The argument has two major premises: the first claims that certain facts about chances obtain in a certain kind of hypothetical situation, and the second that these facts entail that some actual act is not free. Since the publication of the rollback argument, the second claim has been vehemently debated, but everyone seems to have (...) taken the first claim for granted. Nevertheless, the first claim is totally unjustified. Even if we accept the second claim, therefore, the argument gives us no reason to think that free will and indeterminism are incompatible. Furthermore, seeing where the rollback argument goes wrong illuminates how a certain kind of incompatibilist, the ‘chance-incompatibilist,’ ought to think about free will and chance, and points to a possibility for free will that has remained largely unexplored. (shrink)

It is widely assumed that candidates for free, undetermined choices must have objective probabilities prior to their performance. Indeed although this premise figures prominently in a widely discussed argument against libertarianism, few libertarians have called it into question. In this article, I will investigate whether libertarians ought to reject it. I will conclude that doing so should not be tempting to event-causal libertarians or most agent-causal ones, because the added costs outweigh the benefits.

Seth Shabo has presented a new argument that attempts to codify familiar worries about indeterminism, luck, and control. His ‘Assimilation Argument’ contends that libertarians cannot distinguish overtly randomized outcomes from exercises of free will. Shabo claims that the argument possesses advantages over the Mind Argument and Rollback Argument, which also purport to establish that indeterminism is incompatible with free will. I argue first that the Assimilation Argument presents no new challenges over and above (...) those presented by the Rollback Argument, and second that the Rollback Argument itself neither presents a deep challenge to, nor raises the cost of, accepting libertarianism. (shrink)

The Assimilation Argument purports to show that libertarians cannot plausibly distinguish supposed exercises of free will from random outcomes that nobody would count as exercises of free will. If this argument is sound, libertarians should either abandon their position or else concede that free will is a mystery. Drawing on a parallel with the Manipulation Argument against compatibilism, Christopher Franklin has recently contended that the Assimilation Argument is unsound. Here I defend the Assimilation Argument and (...) the Rollback Argument, a second challenge to libertarianism that Franklin rejects. My aim in doing so is to underscore the force of these challenges, and thereby to resist what appears to be an emerging trend in the literature. By not coming to grips with the kind of power that libertarians must secure, many writers have recently downplayed or dismissed the pressing worry for libertarianism. (shrink)

Rollback arguments focus on long sequences of actions with identical initial conditions in order to explicate the luck problem that indeterminism poses for libertarian free will theories (i.e. the problem that indeterministic actions appear arbitrary in a free-will undermining way). In this paper, I propose a rollback argument for probability incompatibilism, i.e. for the thesis that free will is incompatible with all world-states being governed by objective probabilities. Other than the most prominently discussed rollback arguments, this (...) argument explicitly focusses on the ability to act otherwise. It argues that the negligible probability of the relative frequencies in overall rollback patterns being relevantly different indicates that even the ability to act otherwise with regard to individual actions is not free-will enabling. My proposed argument provides probability incompatibilists with a tool to argue against a classical event-causal response to the luck problem, while it can still motivate an agent-causal response to it. (shrink)

In this paper, I articulate an argument for incompatibilism about moral responsibility and determinism. My argument comes in the form of an extended story, modeled loosely on Peter van Inwagen’s “rollback argument” scenario. I thus call it “the replication argument.” As I aim to bring out, though the argument is inspired by so-called “manipulation” and “original design” arguments, the argument is not a version of either such argument—and plausibly has advantages over both. (...) The result, I believe, is a more convincing incompatibilist argument than those we have considered previously. (shrink)

Reliabilists accept the possibility of basic knowledge—knowledge that p in virtue of the reliability of some belief-producing process r without antecedent knowledge that r is reliable. Cohen (Philos Phenomenol Res 65:309–329, 2002 , Philos Phenomenol Res 70:417–430, 2005 ) and Vogel (J Philos 97:602–623, 2000 , J Philos 105:518–539, 2008 ) have argued that one can bootstrap knowledge that r is reliable from basic knowledge. This paper provides a diagnosis of epistemic bootstrapping, and then shows that recent attempts at embracing (...) bootstrapped knowledge are found wanting. Instead it is argued that such arguments are afflicted by a novel kind of generalized epistemic circularity. The ensuing view is defended against various objections, and an explanation of the source of that circularity is offered. (shrink)

In this paper I seek to defend libertarianism about free will and moral responsibility against two well-known arguments: the luck argument and the Mind argument. Both of these arguments purport to show that indeterminism is incompatible with the degree of control necessary for free will and moral responsibility. I begin the discussion by elaborating these arguments, clarifying important features of my preferred version of libertarianism—features that will be central to an adequate response to the arguments—and showing why a (...) strategy of reconciliation (often referred to as “deliberative libertarianism”) will not work. I then consider four formulations of the luck argument and find them all wanting. This discussion will place us in a favorable position to understand why the Mind argument also fails. (shrink)

Among challenges to libertarians, the _Mind_ Argument has loomed large. Believing that this challenge cannot be met, Peter van Inwagen, a libertarian, concludes that free will is a mystery. Recently, the _Mind_ Argument has drawn a number of criticisms. Here I seek to add to its woes. Quite apart from its other problems, I argue, the _Mind_ Argument does a poor job of isolating the important concern for libertarians that it raises. Once this concern has been clarified, (...) however, another argument serves to renew the challenge. The Assimilation Argument challenges libertarians to explain how ostensible exercises of free will are relevantly different from other causally undetermined outcomes, outcomes that nobody would count as exercises of free will. In particular, libertarians must explain how agents can have the power to settle which of two causally possible futures becomes the actual future. This will require them to distinguish cases where this power is supposedly present from similar cases where it’s clearly absent. (shrink)

Libertarianism appears to be incoherent, because free will appears to be incompatible with indeterminism. In support of this claim, van Inwagen offered an argument that is now known as the “rollback argument”. In a recent reply, Lara Buchak has argued that the underlying thought experiment fails to support the first of two key premises. On her view, this points to an unexplored alternative in the free will debate, which she calls “chance-incompatibilism”. I will argue that the (...) class='Hi'>rollback thought experiment does support the second key premise of the argument, and, more importantly, that libertarianism is committed to the first premise for independent reasons concerning the relationship between the normative and causal strength of the agent’s reasons. The upshot will be that chance-incompatibilism is not a promising new alternative in the free will debate, and we will see that the debate around those issues can benefit from more attention to the role of the agent’s reasons for action. (shrink)

Like most episodes of Black Mirror, “Hang the DJ” raises a host of philosophical questions. While there is much from this episode to explore, this chapter will explore something that has not yet been addressed in other work, namely the connection between “Hang the DJ” and questions about free will and determinism (or indeterminism, as the case may be). This chapter will proceed as follows: first, I will sketch some reasons for thinking that, if determinism is true, then no one (...) has or exercises free will. One type of response to determinism’s threat to free will is to accept the incompatibility of free will and determinism and to maintain that we nevertheless have free will. Theorists who endorse indeterministic accounts of free will are called libertarians in the free will debate (but please do not confuse them with political libertarians). Second, I will explain a bit more of the mechanics of libertarianism. Third, I will discuss an influential challenge to libertarianism that has come to be known as the “rollback argument.” The mechanics of this challenge will resemble the plot twist of “Hang the DJ.” Fourth, and finally, I will explore the episode’s portrayal of the value of undetermined choice. (shrink)

Peter van Inwagen famously offers a version of the luck objection to libertarianism called the ‘Rollback Argument.’ It involves a thought experiment in which God repeatedly rolls time backward to provide an agent with many opportunities to act in the same circumstance. Because the agent has the kind of freedom that affords her alternative possibilities at the moment of choice, she performs different actions in some of these opportunities. The upshot is that whichever action she performs in the (...) actual-sequence is intuitively a matter of mere chance. I explore a new response to the Rollback Argument. If there are true counterfactuals of libertarian freedom, then the agent performs the same action each time she is placed in the same circumstance, because that is what she would freely do in that circumstance. This response appears to negate the chancy intuition. Ultimately, however, I argue that this new response is unsuccessful, because there is a variant of the Rollback Argument that presents the same basic challenge to the libertarian on the assumption that there are true counterfactuals of libertarian freedom. Thus, true counterfactuals of libertarian freedom do not provide the libertarian with a solution to the Rollback Argument. (shrink)

Abstract -/- Libertarians typically believe that we are morally responsible for the choices (or decisions) we make only if those choices are free, and our choices are free only if they are neither caused nor nomically necessitated by antecedent events. Recently, there have been a number of attempts by philosophers to refute libertarianism by arguing that because a libertarianly free decision (choice) is both causally and nomically undetermined, which decision an agent makes in a deliberative situation is a matter of (...) luck, which implies (due to the way these philosophers use 'luck') that the agent does not have control over which decision he makes. This argument has been dubbed "the Argument from Luck" or "the Luck Objection" against libertarianism – henceforth 'LO'. In this paper, we examine some versions of LO as reflected in the works of Alfred Mele (2006), Neil Levy (2011), and Peter van Inwagen (2000, 2011). We argue that libertarians have nothing to fear from LO. Deep down the objection reflects a failure, on the part of its proponents, really to come to grips with the libertarian position. (shrink)

I here sketch a reply to Peter van Inwagen’s Rollback Argument, which suggests that libertarian accounts of free agency are beset by problems involving luck. Van Inwagen imagines an indeterministic agent whose universe is repeatedly ‘rolled back’ by God to the time of her choice. Since the agent’s choice is indeterministic, her choices are sometimes di erent in the imaginary rollback scenarios. I show that although this is true, this need not impair her control over what she (...) does. I develop an account of when and why the fact that an agent would choose di erently impairs control, which provides a novel response to the Rollback Argument. (shrink)

In the contemporary debate on free will, most philosophers assume that the defense of libertarianism implies the defense of the notion of alternative possibilities. This article discusses this presupposition by showing that it is possible to build a libertarianism without alternative possibilities, apparently more robust than libertarianism with alternative possibilities. Inspired by Bergson, this nonclassical libertarianism challenges the idea that all causation implies the actualization of a predetermined possibility (an idea shared by determinism and classical libertarianism). Moreover, it challenges the (...) idea that free will is a mere choice between prefixed possibilities: for this libertarianism, free will is the result of a creative process of the mind—an entirely causal process whose outcome is not, however, predetermined. This nonclassical libertarianism describes the process of forming a will in a more realistic way than classical libertarianism does. Furthermore, it is not threatened by the problem of chance. (shrink)

Anselm’s ontological argument is an argument for the existence of God. This paper presents Iris Murdoch’s ontological argument for the existence of the Good. It discusses her interpretation of Anselm’s argument, her distinctive appropriation of it, as well as some of the merits of her version of the argument. In doing so, it also shows how the argument integrates some key Murdochian ideas: morality’s wide scope, the basicness of vision to morality, moral realism, and (...) Platonism. (shrink)

This book presents a strong case for substance dualism and offers a comprehensive defense of the knowledge argument, showing that materialism cannot accommodate or explain the 'hard problem' of consciousness. Bringing together the discussion of reductionism and semantic vagueness in an original and illuminating way, Howard Robinson argues that non-fundamental levels of ontology are best treated by a conceptualist account, rather than a realist one. In addition to discussing the standard versions of physicalism, he examines physicalist theories such as (...) those of McDowell and Price, and accounts of neutral monism and panpsychism from Strawson, McGinn and Stoljar. He also explores previously unnoticed historical parallels between Frege and Aristotle, and between Hume and Plotinus. His book will be a valuable resource for scholars and advanced students of philosophy of mind, in particular those looking at consciousness, dualism, and the mind-body problem. (shrink)

Argument and Designfeatures fifteen essays by leading scholars of the Sanskrit epics, the Mahābhārata and the Rāmāyaṇa, discussing the Mahābhārata's upākhyānas, subtales that branch off from the central storyline and provide vantage points for reflecting on it.

What role should it play? And are claims to rationality liberating or oppressive? For the Sake of Argument addresses questions such as these to consider the relationship between thought and character.

Samuel Rickless presents a new account of Berkeley's controversial argument, and suggests it is the philosopher's greatest legacy: not only is it valid, but it may well be sound.

Advocates of the Everett interpretation of quantum mechanics have long claimed that other interpretations needlessly invoke "new physics" to solve the measurement problem. Call the argument fashioned that gives voice to this claim the Redundancy Argument, or ’Redundancy’ for short. Originating right in Everett’s doctoral thesis, Redundancy has recently enjoyed much attention, having been advanced and developed by a number of commentators, as well as criticized by a few others.[1] Although versions of this argument can target collapse (...) theories of quantum mechanics, it is usually conceived with no-collapse "hidden variable" interpretations in mind, e.g., modal and Bohmian interpretations. In particular, the argument is an attack against theories committed to both realism about the quantum state and realism about entities – what Bell 1987 calls "beables" – that supplement this state. Particles, fields, value states, and more have been suggested as possible ontology to supplement the quantum state. Redundancy is the argument that this supplementation is methodologically otiose, the superfluous pomp that Newton scorned. (shrink)

One of the most challenging issues in medical ethics is a permission or prohibition of euthanasia. Is a patient with an incurable disease who has lots of pain permitted to kill oneself or ask others to do that? The main reason advanced by the opponents is the absolute prohibition of murder. Accordingly, the meaning of murder plays a key role in determining the moral judgment of euthanasia. The aim of this paper is to confirm the role of intention in moral (...) judgment of euthanasia and eliminate the name of unjust murder from voluntary euthanasia. The Intention of an agent determines the name of the act and whether it is right or wrong. An important point that dose not taken into account in the definitions of murder, killing as well as their ethical judgment is considering the attributes of being unjust and forcible. Killing a human being is neither intrinsically good nor bad, but its ethical judgment depends on the way that happens, i.e. just or unjust. Every killing is neither bad nor unethical except unjust one which is both bad and unethical. The attribute of “unjust” has been mentioned in the definition of murder in Islamic jurisprudence, law, traditions, and Quran. Owing to this argument, on one hand, it is true to state that voluntary euthanasia is not unjust and forcible murder (the test of correct negation), and on the other hand, it is not true to say that voluntary euthanasia is unjust and forcible murder (the test of incorrect predication). It can be concluded that voluntary euthanasia is an independent title other than unjust murder and does not have its judgment. (shrink)

A 'self-refutation argument' is any argument which aims at showing that a certain thesis is self-refuting. This study was the first book-length treatment of ancient self-refutation and provides a unified account of what is distinctive in the ancient approach to the self-refutation argument, on the basis of close philological, logical and historical analysis of a variety of sources. It examines the logic, force and prospects of this original style of argumentation within the context of ancient philosophical debates, (...) dispelling various misconceptions concerning its nature and purpose and elucidating some important differences which exist both within the ancient approach to self-refutation and between that approach, as a whole, and some modern counterparts of it. In providing a comprehensive account of ancient self-refutation, the book advances our understanding of influential and debated texts and arguments from philosophers like Democritus, Plato, Aristotle, Epicurus, the Stoics, the Academic sceptics, the Pyrrhonists and Augustine. (shrink)

An original extended argument for an interactionist dualist philosophy of mind.

This paper responds to Kauffeld’s 2009 OSSA paper, considering the adequacy of his “commitment-based” approach to “ordinary presumptive practices” to sup-ply an account of presumption fit for general application in normative theories of argument. The central issue here is whether socially-grounded presumptions are defeasible in the right sorts of ways so as to pro-duce “truth-tropic” presumptive inferences.

According to the indispensability argument, the fact that we quantify over numbers, sets and functions in our best scientific theories gives us reason for believing that such objects exist. I examine a strategy to dispense with such quantification by simply replacing any given platonistic theory by the set of sentences in the nominalist vocabulary it logically entails. I argue that, as a strategy, this response fails: for there is no guarantee that the nominalist world that go beyond the set (...) of sentences in the nominalist language such theories entail. However, I argue that what such theories show is that mathematics can enable us to express possibilities about the concrete world that may not be expressible in nominalistically acceptable language. While I grant that this may make quantification over abstracta indispensable, I deny that such indispensability is a reason for accepting them into our ontology. I urge that the nominalist should be allowed to quantify over abstracta whilst denying their existence and I explain how this apparently contradictory practice (a practice I call 'weaseling') is in fact coherent, unproblematic and rational. Finally, I examine the view that platonistic theories are simpler or more attractive than their nominalistic reformulations, and thus that abstract ought to be accepted into our ontology for the same sorts of reasons as other theoretical objects. I argue that, at least in the case of numbers, functions and sets, such arguments misunderstand the kind of simplicity and attractiveness we seek. (shrink)

In Vol. XI, No.1, this journal announced an argument analysis contest. Two eminent colleagues agreed to serve as judges-Professor Henry W. Johnstone, Jr. and Professor Michael Scriven. In short order, four entries were received and sent off to the judges, who had no knowledge of the contestants' identities, and in due course the judges' verdicts were delivered. Immediately below we have reproduced the argument which was to be analyzed, along with the rules of the contest, followed by the (...) four entries. Thereafter we present the judges' rulings. (shrink)

Blair, David Review of: Here on earth: An argument for hope, by Tim Flannery, Text Publishing Co. 2010 $35.