The importance of potential intentions has been demonstrated both in the construction of agent systems and in the formalisation of teamwork behaviour. However, there still lacks an adequate semantics for the notion of potential intentions as introduced by Grosz and Kraus in their SharedPlans framework. In this paper, we give a formal semantics to intentions and potential intentions, drawing upon both the representationalist approach and the accessibility-based approach. The model captures the dynamic relationship among intentions and potential intentions by providing (...) semantic rules and conditions. Also, the model treats norms as a special class of intentional context, and it is shown that norms play a critical role in the dynamics of intentions in multiagent systems. The formal semantics allows us to validate some properties that are widely-accepted for intention attitudes. (shrink)

We prove that for any finite deduction structure there exists a unique concise-widest chain-preserved split. Based on this result, we propose a logical splitting strategy which enables an agent to split its belief structure such that all the original inference chains can be preserved. The significance of such logical splitting at least is four-fold: It can be used by an agent to separate its concerns appropriately, or even create smaller and smarter clones which could save time and efforts in their (...) deliberation computing; It will enable an agent to adjust its concerns dynamically based on its recognition of the current situation, which may further enable the agent to make rapid and rational decisions when situation shifting occurs; In periodic team synchronization domains where agents can periodically synchronize their behaviors with no restriction on communication, it can be employed as a critical process for maintaining the shared mental models among a team of agents; and It is helpful in alleviating the complexity of reasoning about relevant information, and in better anticipating both explicit and implicit information needs based on the recognition of the current situation. (shrink)

Simon Evnine examines various epistemic aspects of what it is to be a person. Persons are defined as finite beings that have beliefs, including second-order beliefs about their own and others' beliefs, and are agents, capable of making long-term plans. It is argued that for any being meeting these conditions, a number of epistemic consequences obtain. First, all such beings must have certain logical concepts and be able to use them in certain ways. Secondly, there are at least two principles (...) governing belief that it is rational for persons to satisfy and are such that nothing can be a person at all unless it satisfies them to a large extent. These principles are that one believe the conjunction of one's beliefs and that one treat one's future beliefs as, by and large, better than one's current beliefs. Thirdly, persons both occupy epistemic points of view on the world and show up within those views. This makes it impossible for them to be completely objective about their own beliefs. Ideals of rationality that require such objectivity, while not necessarily wrong, are intrinsically problematic for persons. This "aspectual dualism" is characteristic of treatments of persons in the Kantian tradition. In sum, these epistemic consequences support a traditional view of the nature of persons, one in opposition to much recent theorizing. (shrink)

This paper offers two new arguments for a version of Reflection, the principle that says, roughly, that if one knew now what one would believe in the future, one ought to believe it now. The most prominent existing argument for the principle is the coherence-based Dutch Strategy argument advanced by Bas van Fraassen (and others). My two arguments are quite different. The first is a truth-based argument. On the basis of two substantive premises, that people’s beliefs generally get better over (...) time and that being a person requires having knowledge of this fact, it concludes that it is rational to treat your future selves as experts. The second argument is a transcendental one. Being a person requires being able to engage in plans and projects. But these cannot be meaningfully undertaken unless one has Reflection-like expectations about one’s future beliefs. Hence, satisfaction of Reflection is necessary for being a person. Together, the arguments show that satisfaction of Reflection is both rational and necessary for persons. (shrink)

According to orthodoxy, there are two basic moods of supposition: indicative and subjunctive. The most popular formalizations of the corresponding norms of suppositional judgement are given by Bayesian conditionalization and Lewisian imaging, respectively. It is well known that Bayesian conditionalization can be generalized (via Jeffrey conditionalization) to provide a model for the norms of partial indicative supposition. This raises the question of whether imaging can likewise be generalized to model the norms of ‘partial subjunctive supposition’. The present article casts doubt (...) on whether the most natural generalizations of imaging are able to provide a plausible account of the norms of partial subjunctive supposition. (shrink)

Belief is not a unified phenomenon. In this paper I argue, as a number of other riters argue, that one should distinguish a variety of belief-like attitudes: believing proper - a dispositional state which can have degrees - holding true - which can occur without understanding what one believes - and accepting - a practical and contextual attitude that has a role in deliberation and in practical reasoning. Acceptance itself is not a unified attitude. I explore the various relationships and (...) differences between these doxastic attitudes, and claim that although acceptance is distinct from belief, it rests upon it, and is therefore a species of belief. (shrink)

This paper outlines the methodology and experiments associated with the reshaping of human intentions based on robot movements within Human-Robot Interactions. Although studies on estimating human intentions are well studied in the literature, reshaping intentions through robot-initiated interactions is a new significant branching in the field of HRI. In this paper, we analyze how estimated human intentions can intentionally change through cooperation with mobile robots in real Human-Robot environments. This paper proposes an intention-reshaping system that includes either the Observable Operator (...) Models or Hidden Markov Models to estimate human intention and decide which moves a robot should perform to reshape previously estimated human intentions into desired ones. At the low level, the system needs to track the locations of all mobile agents using cameras. We test our system on videos taken in a real HRI environment that has been developed as our experimental setup. The results show that OOMs are faster than HMMs and both models give correct decisions for testing sequences. (shrink)

Many philosophers are convinced that rationality dictates that one’s overall set of intentions be consistent. The starting point and inspiration for our study is Bratman’s planning theory of intentions. According to this theory, one needs to appeal to the fulfilment of characteristic planning roles to justify norms that apply to our intentions. Our main objective is to demonstrate that one can be rational despite having mutually inconsistent intentions. Conversely, it is also shown that one can be irrational despite having a (...) consistent overall set of intentions. To overcome this paradox, we argue that it is essential for a successful planning system that one’s intentions are practically consistent rather than being consistent or applying an aggregation procedure. Our arguments suggest that a new type of norm is needed: whereas the consistency requirement focuses on rendering the contents of one’s intentions consistent, our new practical consistency requirement demands that one’s intentions be able to simultaneously and unconditionally guide one’s action. We observe that for intentions that conform to the ‘own-action condition’, the practical consistency requirement is equivalent to the traditional consistency requirement. This implies that the consistency requirement only needs to be amended in scenarios of choice under uncertainty. (shrink)

I argue that, in experiencing a recalcitrant emotion, one does not violate a rational requirement of any sort. Rational requirements, as the expression has come to be used, are requirements of coherence. Accordingly, my argument is that there is nothing incoherent in any way about experiencing a recalcitrant emotion. One becomes incoherent only if one allows the emotion to influence one's reasoning and/or action, in which case one violates the ‘consistency principle’ and/or the ‘enkratic principle’. From the standpoint of rationality, (...) it would even be counterproductive to put subjects under the obligation that their emotional experiences and their evaluative judgements must always fit together. When we nevertheless intuitively sense that the subject is irrational in experiencing a recalcitrant emotion this is in cases in which the emotion challenges the subject's agential identity. However, emotions can, but need not, challenge one's agential identity, and, furthermore, perceptions can do so as well. In any case, challenges of this kind do not involve the violation of a rational requirement. (shrink)

The objective of this paper is to articulate a distinction between habit and bodily skill as different ways of acting without deliberation. I start by elaborating on a distinction between habit and skill as different kinds of dispositions. Then I argue that this distinction has direct implications for the varieties of automaticity exhibited in habitual and skilful bodily acts. The argument suggests that paying close attention to the metaphysics of agency can help to articulate more precisely questions regarding the varieties (...) of automaticity exhibited in overt action. (shrink)

I attempt to describe the several costs that criminal theory would be forced to pay by adopting the view (currently fashionable among moral philosophers) that the intentions of the agent are irrelevant to determinations of whether his actions are permissible (or criminal).

Several authors have argued that the things one does in the course of skilled and habitual activity present a difficult case for the ‘standard story’ of action. They are things intentionally done, but they do not seem to be suitably related to mental states. I suggest that once manifestations of habit are properly distinguished from exercises of skills and other kinds of spontaneous acts, we can see that habit raises a distinctive sort of problem. I examine certain responses that have (...) been given, as well as responses that could be given on behalf of the standard story to the problems presented by habitual activity. These responses rely on the idea of a kind of intention that does not ensue from conscious thought or deliberation. I raise three different objections to this line of response. The conclusion is that habit explains aspects of human behavior that cannot be accounted by ascribing intentions of any kind. (shrink)

Business and Economic textbooks warn against committing the Sunk Cost Fallacy: you, rationally, shouldn't let unrecoverable costs influence your current decisions. In this paper, I argue that this isn't, in general, correct. Sometimes it's perfectly reasonable to wish to carry on with a project because of the resources you've already sunk into it. The reason? Given that we're social creatures, it's not unreasonable to care about wanting to act in such a way so that a plausible story can be told (...) about you according to which your diachronic behavior doesn't reveal that you've suffered, what I will call, diachronic misfortune. Acting so as to hide that you've suffered diachronic misfortune involves striving to make yourself easily understood while disguising any shortcomings that might damage your reputation as a desirable teammate. And making yourself easily understood to others while hiding your flaws will, sometimes, put pressure on you to honor sunk costs. (shrink)

According to the traditional view of weakness of will, a weak-willed agent acts in a way inconsistent with what she judges to be best.1 Richard Holton has argued against this view, claiming that ‘the central cases of weakness of will are best characterized not as cases in which people act against their better judgment, but as cases in which they fail to act on their intentions’ (1999: 241). But Holton doesn’t think all failures to act on one’s prior intentions, or (...) all revisings of intentions, are cases of weakness of will (WW). Rather, he thinks an intention-revision is a case of WW only when it occurs ‘in circumstances in which [one] should not have revised [the intention]’. Holton points out that according to the traditional view of WW, to call an agent ‘weak-willed’ is to make descriptive claim about the agent (about whether an action in fact is inconsistent with what (s)he judges to be best). But according to Holton’s account, the question of whether the agent was weak-willed ‘will depend on which intentions [the agent] should have stuck with as a rational intender. That is a normative question’ (my emphasis) (241-3, 247-8. (shrink)

I argue against the Doctrine of Double Effect’s explanation of the moral difference between terror bombing and strategic bombing. I show that the standard thought-experiment of terror bombing and strategic bombing which dominates this debate is underdetermined with regards to the agents’ psychologies: (a) if Terror Bomber and Strategic Bomber have the same causal beliefs, then why does Terror Bomber set out to kill the children? It may then be this unwarranted and immoral choice and not the Doctrine of Double (...) Effect that explains the moral difference; (b) if the two have different causal beliefs, then we can’t rule out the counterfactual that, had Strategic Bomber had the same beliefs as Terror Bomber, she would have also acted as Terror Bomber did. (shrink)

I defend the argument that if embryo loss in stem cell research is morally problematic, then embryo loss in in vivo conception is similarly morally problematic. According to a recent challenge to this argument, we can distinguish between in vivo embryo loss and the in vitro embryo loss of stem cell research by appealing to the doctrine of double effect. I argue that this challenge fails to show that in vivo embryo loss is a mere unintended side effect while in (...) vitro embryo loss is an intended means and that, even if we refine the challenge by appealing to Michael Bratman's three roles of intention, the distinction is still unwarranted. (shrink)

I argue against various versions of the ‘attitude’ view of consent and of the ‘action’ view of consent: I show that neither an attitude nor an action is either necessary or sufficient for consent. I then put forward a different view of consent based on the idea that, given a legitimate epistemic context, absence of dissent is sufficient for consent: what is crucial is having access to dissent. In the latter part of the paper I illustrate my view of consent (...) by applying it to the case of consenting to being an organ donor. (shrink)

There are some interesting similarities between Aristotle’s ‘mixed actions’ in Book III of the Nicomachean Ethics and the actions often thought to be justifiable with the Doctrine of Double Effect. Here I analyse these similarities by comparing Aristotle’s examples of mixed actions with standard cases from the literature on double effect such as, amongst others, strategic bombing, the trolley problem, and craniotomy. I find that, despite some common features such as the dilemmatic structure and the inevitability of a bad effect, (...) Aristotle’s mixed actions do not count as cases justifiable through application of the Doctrine of Double Effect because they fail to meet the crucial necessary condition of the Doctrine according to which the bad effect can only be a merely foreseen side-effect and not an intended means. (shrink)

I show that Pickard’s argument against the irresistibility of addiction fails because her proposed dilemma, according to which either drug-seeking does not count as action or addiction is resistible, is flawed; and that is the case whether or not one endorses Pickard’s controversial definition of action. Briefly, we can easily imagine cases in which drug-seeking meets Pickard’s conditions for agency without thereby implying that the addiction was not irresistible, as when the drug addict may take more than one route to (...) go meet her dealer. (shrink)

Doug Husak has argued, persuasively I think, that there is no literal ‘act requirement’ in Anglo-American law. I begin by reviewing Husak’s reasons for rejecting the act requirement, and provide additional reasons to think he is right to do so. But Husak’s alternative, the ‘control condition’, I argue, is inadequate. The control requirement is falsified by the widespread practice of holding extremely intoxicated offenders liable for criminal conduct they engage in even if they lack control over their conduct at the (...) time of the offense, and even if they are acting involuntarily. I provide examples from Canadian, US and German law to flesh out our legal practices with respect to intoxicated offenders. I then argue that, at least with respect to one class of intoxicated offenders–those known as ‘grand schemers’, who plan their criminal offending prior to rendering themselves incapable of voluntary control over their conduct–we are morally justified in imposing liability. I then propose an alternative to both the act and control requirements: what I call the ‘agency requirement’. I argue that our law does and should impose liability for conduct that is expressive of or constitutive of the defendant’s practically rational agency. Adopting an agency view allows us to expand our focus from just the moment of the offense to temporally extended instances of agency, such as is involved in planned offending by grand schemers. (shrink)

I propose an amendment to Sosa’s virtue reliabilism. Sosa’s framework assigns a central role to sophisticated, conceptual, motivational states: ‘intentions to affirm aptly’. I argue that the suggestion that ordinary knowers in fact are motivated by such intentions in everyday belief-forming situations is at best problematic, and explore the possibility of an alternative virtue reliabilist framework. In this alternative framework, the role Sosa assigns to ‘intentions to affirm aptly’ is played instead by non-conceptual motivational states, which I call ‘needs’. The (...) first part of the paper sketches Sosa’s framework. The second develops the need-based alternative. I close by comparing the two proposals, concluding that the onus is at least on Sosa to say why his intention-based framework should be preferred. (shrink)

The paper presents a framework to realise “meaningful human control” over Automated Driving Systems. The framework is based on an original synthesis of the results of the multidisciplinary research project “Meaningful Human Control over Automated Driving Systems” lead by a team of engineers, philosophers, and psychologists at Delft University of the Technology from 2017 to 2021. Meaningful human control aims at protecting safety and reducing responsibility gaps. The framework is based on the core assumption that human persons and institutions, not (...) hardware and software and their algorithms, should remain ultimately—though not necessarily directly—in control of, and thus morally responsible for, the potentially dangerous operation of driving in mixed traffic. We propose an Automated Driving System to be under meaningful human control if it behaves according to the relevant reasons of the relevant human actors (tracking), and that any potentially dangerous event can be related to a human actor (tracing). We operationalise the requirements for meaningful human control through multidisciplinary work in philosophy, behavioural psychology and traffic engineering. The tracking condition is operationalised via a proximal scale of reasons and the tracing condition via an evaluation cascade table. We review the implications and requirements for the behaviour and skills of human actors, in particular related to supervisory control and driver education. We show how the evaluation cascade table can be applied in concrete engineering use cases in combination with the definition of core components to expose deficiencies in traceability, thereby avoiding so-called responsibility gaps. Future research directions are proposed to expand the philosophical framework and use cases, supervisory control and driver education, real-world pilots and institutional embedding. (shrink)

Deepfake technology presents significant ethical challenges. The ability to produce realistic looking and sounding video or audio files of people doing or saying things they did not do or say brings with it unprecedented opportunities for deception. The literature that addresses the ethical implications of deepfakes raises concerns about their potential use for blackmail, intimidation, and sabotage, ideological influencing, and incitement to violence as well as broader implications for trust and accountability. While this literature importantly identifies and signals the potentially (...) far-reaching consequences, less attention is paid to the moral dimensions of deepfake technology and deepfakes themselves. This article will help fill this gap by analysing whether deepfake technology and deepfakes are intrinsically morally wrong, and if so, why. The main argument is that deepfake technology and deepfakes are morally suspect, but not inherently morally wrong. Three factors are central to determining whether a deepfake is morally problematic: whether the deepfaked person would object to the way in which they are represented; whether the deepfake deceives viewers; and the intent with which the deepfake was created. The most distinctive aspect that renders deepfakes morally wrong is when they use digital data representing the image and/or voice of persons to portray them in ways in which they would be unwilling to be portrayed. Since our image and voice are closely linked to our identity, protection against the manipulation of hyper-realistic digital representations of our image and voice should be considered a fundamental moral right in the age of deepfakes. (shrink)

Philosophers from Hart to Lewis, Johnston and Bennett have expressed various degrees of reservation concerning the doctrine of double effect. A common concern is that, with regard to many activities that double effect is traditionally thought to prohibit, what might at first look to be a directly intended bad effect is really, on closer examination, a directly intended neutral effect that is closely connected to a foreseen bad effect. This essay examines the extent to which the commonsense concept of intention (...) supports a reasonably consistent and coherent application of double effect. Two important conclusions are these: (1) a number of traditionally proscribed activities involve a kind of “targeting” of innocents that can be taken to exhibit a direct intention to harm them; (2) a direct intention to harm need not involve a desire to harm in any ordinary sense of the latter expression. (shrink)

Michael Bratman''s restricted two-tier approach to rationalizing the stability of intentions contrasts with an alternative view of planning, for which all of the following claims are made: (a) it shares with Bratman''s restricted two-tier approach the virtue of reducing the magnitude of Smart''s problem; (2) it, rather than the unrestricted two-tier approach, is what is argued for in McClennen (1990); (3) there does not appear to be anything in the central analysis that Bratman has provided of plans and intentions (both (...) in his book,Intention, Plans, and Practical Reason, and in the article Planning and the Stability of Intention) that precludes his adopting this alternative approach; and (4) it is an approach that neither requires nor encourages any distinction between the standards appropriate to artificial and to human intelligence. (shrink)

The dead donor rule (DDR) originally stated that organ donors must not be killed by and for organ donation. Scholars later added the requirement that vital organs should not be procured before death. Some now argue that the DDR is breached in donation after circulatory determination of death (DCDD) programs. DCDD programs do not breach the original version of the DDR because vital organs are procured only after circulation has ceased permanently as a consequence of withdrawal of life-sustaining therapy. We (...) hold that the original rendition of the DDR banning killing by and for organ donation is the fundamental norm that should be maintained in transplantation ethics. We propose separating the DDR from two other fundamental normative rules: the duties to prevent harm and to obtain informed consent. (shrink)

In this paper, I present and defend an explication of content in terms of the mathematical notion of information. In its most general formulation, the theory says that two states have the same content just in case they carry the same information, relative to a communication network. My account reifies content (it is the discrete counterpart to continuous information) and supports the idea that agents have internal means of comparing the contents of two thoughts. Further, it makes sense to say (...) that agents have communicated successfully when they coordinate on content in this sense; they have transmitted information without loss. (shrink)

This article reports an experiment which tests the principle of separability, i.e. that behaviour in a dynamic choice problem is independent of history and of unreachable eventualities. Although this is a well-known principle of orthodox decision theory and central to conventional economic modelling, it has been questioned on grounds suggested by non-expected utility models of choice under risk and by the psychology of affective influences on risk-taking. Our experimental design, which provides between-subjects tests of separability using three treatments in which (...) the history preceding a decision is manipulated, is inspired by these concerns. We expose separability to a clean and harsh test, but find no evidence that it is violated. (shrink)

In the decision-making and rationality research field, rational decision theory (RDT) has always been the main framework, thanks to the elegance and complexity of its mathematical tools. Unfortunately, the formal refinement of the theory is not accompanied by a satisfying predictive accuracy, thus there is a big gap between what is predicted by the theory and the behaviour of real subjects. Here we propose a new foundation of the RDT, which has to be based on a cognitive architecture for reason-based (...) agents, acting on the basis of their beliefs in order to achieve their goals. The decision process is a cognitive evaluation of conflicting goals, based on different beliefs and values, but also on emotions and desires. We refer to a cognitive analysis of emotions and we integrate them in this more general RDT. (shrink)

I argue that there are liberal reasons to reject what I call “Global Individualism”, which is the conjunction of two views strongly associated with liberalism: moral individualism and social individualism. According to the first view, all moral properties are reducible to individual moral properties. The second holds that the social world is composed only of individual agents. My argument has the following structure: after suggesting that Global Individualism does not misrepresent liberalism, I draw on some recent insights in social ontology (...) to show that it is inconsistent with the satisfaction of an important liberal principle related to the protection of individual rights over time. As I hold, to solve this problem we need to accept group agents acting as moral agents, which in turn commits us to the weaker notion of normative individualism (a view that is consistent with the existence of some group moral properties). I conclude with the suggestion that even this solution is costly for liberalism, for the conjunction of group moral agency and normative individualism makes the latter unstable and compels liberals to a much less individualistic stance than expected. (shrink)

The philosophy of time travel is a sub-field of metaphysics – the study of what there is and what things are like – that considers questions about the possibility of time travel and what a world in which time travel is possible looks like. These questions range from whether time travel is actually possible, to how time travellers can act in the past or future. This thesis delves into a particularly interesting, yet historically undertreated theme: the abilities of time travellers (...) and relatedly their freedom as well. The abilities and freedom of time travellers has been the source of a lot of recent discussion with some polarising views. The minority (which includes Lewis (1976), but also Ted Sider (2002)) argue for the affirmative – that time travellers are free and have the same (or perhaps more) abilities as non-time travellers. The majority (which includes Kadri Vihvelin (1996), Michael Rea (2005), Stephanie Rennick (2015), Alison Fernandes (2020), amongst others) argue for the negative, that time travellers do not have exactly the same freedoms and abilities as non-time travellers. I think that it is a mistake to be so pessimistic about the abilities and freedom of time travellers. I treat concerns about the freedom of time travellers and concerns about the abilities of time travellers as two sides of the same coin. Therefore, in what follows, I argue for two related conclusions. First, I argue that time travellers have all sorts of abilities. Second, I argue that time travellers are just as free as non-time travellers. In arguing for these conclusions, I first produce a novel analysis of ability which reveals important details about how abilities track inputs rather than outputs. Second, I use this new analysis of ability to present a new compatibilist account of free will. If I am right in arguing positively for the abilities and freedoms of time travellers, then this has large implications for both the current time travel discourse and the general debate surrounding freedom. Significantly, I am arguing against some prominent views about time travel and in suggesting that these views are mistaken, I am presenting new ideas about ability and freedom: specifically, that time travellers have the ability and are free to do impossible things. (shrink)

Say that a ‘practical decision’ is a momentary intentional mental action of intention formation. According to what I’ll call the ‘Decisional Prior Intention Thesis’, each practical decisio...

Skilled activity, such as shaving or dancing, differs in important ways from many of the stock examples that are employed by action theorists. Some critics of the causal theory of action contend that such a view founders on the problem of skilled activity. This paper examines how a causal theory can be extended to the case of skilled activity and defends the account from its critics.

Cognitivists about intention hold that intending to do something entails believing you will do it. Non-cognitivists hold that intentions are conative states with no cognitive component. I argue that both of these claims are true. Intending entails the presence of a belief, even though the intention is not even partly the belief. The result is a form of what Sarah Paul calls Non-Inferential Weak Cognitivism, a view that, as she notes, has no prominent defenders.

It is argued that intentionally omitting requires having an intention with relevant content. And the intention must play a causal role with respect to one’s subsequent thought and conduct. Even if omissions cannot be caused, an account of intentional omission must be causal. There is a causal role for one’s reasons as well when one intentionally omits to do something.

It is widely held that any justifying reason for making a decision must also be a justifying reason for doing what one thereby decides to do. Desires to win decision prizes, such as the one that figures in Kavka’s toxin puzzle, might be thought to be exceptions to this principle, but the principle has been defended in the face of such examples. Similarly, it has been argued that a command to intend cannot give one a justifying reason to intend as (...) commanded. Here it is argued that ordinary agents in ordinary cases can have justifying reasons for deciding that are not and will not be justifying reasons for doing what, in making those decisions, they come to intend to do. The paper concludes with some brief observations on the functions of decision-making. (shrink)

An autonomous reason for intending to A would be a reason for so intending that is not, and will not be, a reason for A-ing. Some puzzle cases, such as the one that figures in the toxin puzzle, suggest that there can be such reasons for intending, but these cases have special features that cloud the issue. This paper describes cases that more clearly favour the view that we can have practical reasons of this sort. Several objections to this view (...) are considered and rejected. Finally, it is considered whether the existence of such reasons would conflict with an attractive coherence principle linking the rationality of intending with that of acting as intended. The paper concludes with a qualified affirmation of autonomous reasons for intending. (shrink)

Abstract I challenge the view that, in cases where time for deliberation is not an issue, instrumental rationality precludes myopic planning. I show where there is room for instrumentally rational myopic planning, and then argue that such planning is possible not only in theory, it is something human beings can and do engage in. The possibility of such planning has, however, been disregarded, and this disregard has skewed related debates concerning instrumental rationality.

An object being non-art appears only trivially informative. Some non-art objects, however, could be saliently 'almost' art, and therefore objects for which being non-art is non-trivially informative. I call these kinds of non-art objects 'failed-art' objects—non-art objects aetiologically similar to art-objects, diverging only in virtue of some relevant failure. I take failed-art to be the right sort of thing, to result from the right sort of action, and to have the right sort of history required to be art, but to (...) be non-art by having failure where being art requires success. I assume that for something to be art that thing must be the product of intention-directed action. I then offer an account of attempts that captures the success conditions governing the relationship between intention-directed actions and their products. From this, I claim that to be failed-art is to be the product of a failed art-attempt, i.e., to be non-art as the result of the particular way in which that art-attempt failed. An art-attempt I take to be an attempt with success conditions, that, if satisfied, entail the satisfaction of the conditions for being art—whatever those may be. To be art, then, is to be the product of a successful art-attempt. As such, any art theory incompatible with my account of failed-art is an art theory for which the notions of success and failure do not matter, and therefore an art theory for which being art needn't be substantively intention-dependent. So, any theory of art unable to accommodate my account of failed-art is _ipso facto_ false. (shrink)

We investigate flexibility and problem solving in skilled action. We conducted a field study of mountain bike riding that required a learner rider to cope with major changes in technique and equipment. Our results indicate that relatively inexperienced individuals can be capable of fairly complex 'on-the-fly' problem solving which allows them to cope with new conditions. This problem solving is hard to explain for classical theories of skill because the adjustments are too large to be achieved by automatic mechanisms and (...) too complex and rapid to be achieved by cognitive processes as they are usually understood. A recent theory, Mesh, can explain these results because it posits that skill-specific cognitive abilities develop during skill learning and that control typically involves an interplay between cognitive and automatic mechanisms. Here we develop Mesh further, providing a detailed explanation for these problem solving abilities. We argue that causal representation, metacognitive awareness and other forms of performance awareness combine in the formulation and control of action strategies. We also argue that the structure of control present in this case is inconsistent with Bratman's model of intentions, and that, in the face of high uncertainty and risk, intentions can be much more labile than Bratman recognises. In addition, we found limitations and flaws in problem solving which illuminate the representations involved. Finally, we highlight the crucial role of social and cultural learning in the development of complex skills. (shrink)

“Myth theorists” have recently called the normative requirement of means-end rationality into question. I show that we can accept certain lessons from the Myth Theorists and also salvage our intuition that there is a normative requirement of means-end rationality. I argue that any appeal to a requirement to make our attitudes coherent as such is superfluous and unnecessary in order to vindicate the requirement of means-end rationality and also avoid the problematic conclusion that persons ought to take the means to (...) whatever ends they happen to intend. (shrink)

Joint action enables us to achieve our goals more efficiently than we otherwise could, and in many cases to achieve goals that we could not otherwise achieve at all. It also presents us with the challenge of determining when and to what extent we should rely on others to make their contributions. Interpersonal commitments can help with this challenge – namely by reducing uncertainty about our own and our partner’s future actions, particularly when tempting alternative options are available to one (...) or more parties. How we know whether a commitment is in place need not, however, be based on an explicit, identifiable event; in many cases, joint action is stabilized by individuals’ experience of an implicit sense of commitment, which is sensitive to subtle situational cues such as the effort costs invested by one or more agents. While an emerging body of work has investigated the conditions under which a sense of commitment may emerge and/or be strengthened, little attention has been paid to the conditions under which people are comfortable dissolving commitments. Specifically, what are the factors that modulate people’s motivation and which determine whether circumstances merit the dissolution of a commitment? After evaluating and rejecting the answers to this question suggested by standard approaches to commitment, we develop a new approach. The core insight which we articulate and defend is that, when considering whether new information or changing circumstances merit the dissolution of a commitment, people virtually bargain with their partners, performing a simulation of a bargaining process with the other person, including imagining how the other will feel and act towards them, and what effect this will have on them. The output of this simulation is a consciously accessible, affective state which provides motivation either to dissolve the commitment or to persist in it. Overall, our account expands our understanding of the phenomenology of being motivated to act committed in joint activity, an area in which existing accounts of interpersonal commitment fall short. (shrink)

In this paper, I examine the manner in which analyses of the action of single agents have been pressed into service for constructing accounts of collective action. Specifically, I argue that the best analogy to collective action is a class of individual action that Carl Ginet has called 'aggregate action.' Furthermore, once we use aggregate action as a model of collective action, then we see that existing accounts of collective action have failed to accommodate an important class of (what I (...) shall call) 'unintentional collective actions.'. (shrink)