If feeling a genuine emotion requires believing that its object actually exists, and if this is a belief we are unlikely to have about fictional entities, then how could we feel genuine emotions towards these entities? This question lies at the core of the paradox of fiction. Since its original formulation, this paradox has generated a substantial literature. Until recently, the dominant strategy had consisted in trying to solve it. Yet, it is more and more frequent for scholars to try (...) to dismiss it using data and theories coming from psychology. In opposition to this trend, the present paper argues that the paradox of fiction cannot be dissolved in the ways recommended by the recent literature. We start by showing how contemporary attempts at dissolving the paradox assume that it emerges from theoretical commitments regarding the nature of emotions. Next, we argue that the paradox of fiction rather emerges from everyday observations, the validity of which is independent from any such commitment. This is why we then go on to claim that a mere appeal to psychology in order to discredit these theoretical commitments cannot dissolve the paradox. We bring our discussion to a close on a more positive note, by exploring how the paradox could in fact be solved by an adequate theory of the emotions. (shrink)

This paper provides a comprehensive review of the experimental philosophy of action, focusing on the various different accounts of the Knobe Effect.

We challenge an argument that aims to support Aesthetic Realism by claiming, first, that common sense is realist about aesthetic judgments because it considers that aesthetic judgments can be right or wrong, and, second, that becauseAesthetic Realism comes from and accounts for “folk aesthetics,” it is the best aesthetic theory available.We empirically evaluate this argument by probing whether ordinary people with no training whatsoever in the subtle debates of aesthetic philosophy consider their aesthetic judgments as right or wrong. Having shown (...) that the results do not support the main premise of the argument, we discuss the consequences for Aesthetic Realism and address possible objections to our study. (shrink)

In this paper, we argue that, barring a few important exceptions, the phenomenon we refer to using the expression “being moved” is a distinct type of emotion. In this paper’s first section, we motivate this hypothesis by reflecting on our linguistic use of this expression. In section two, pursuing a methodology that is both conceptual and empirical, we try to show that the phenomenon satisfies the five most commonly used criteria in philosophy and psychology for thinking that some affective episode (...) is a distinct emotion. Indeed, being moved, we claim, is the experience of a positive core value (particular object) perceived by the moved subject as standing out (formal object) in the circumstances triggering the emotion. Drawing on numerous examples, we describe the distinctively rich phenomenology characteristic of the experience as well as the far-reaching action-tendencies and functions associated with it. Having thus shown that the candidate emotion seem to satisfy the five criteria, we go on, in section three, to compare it with sadness and joy, arguing that it should not be confused with either. Finally, in section four, we illustrate the explanatory power of our account of “being moved” by showing how it can shed light on, and maybe even justify, the widespread distrust we feel towards the exhibition of ‘sentimentality’. On the whole and if we are right, we have uncovered an emotion which, though never or rarely talked about, is of great interest and no small importance. (shrink)

In the past decade, experimental philosophy---the attempt at making progress on philosophical problems using empirical methods---has thrived in a wide range of domains. However, only in recent years has aesthetics succeeded in drawing the attention of experimental philosophers. The present paper constitutes the first survey of these works and of the nascent field of 'experimental philosophy of aesthetics'. We present both recent experimental works by philosophers on topics such as the ontology of aesthetics, aesthetic epistemology, aesthetic concepts, and imagination, as (...) well as research from other disciplines that not only are relevant to philosophy of aesthetics but also open new avenues of research for experimental philosophy of aesthetics. Overall, we conclude that the birth of an experimental philosophy of aesthetics is good news not only for aesthetics but also for experimental philosophy itself, as it contributes to broaden the scope of experimental philosophy. (shrink)

Studying the folk concept of intentional action, Knobe (2003a) discovered a puzzling asymmetry: most people consider some bad side effects as intentional while they consider some good side effects as unintentional. In this study, we extend these findings with new experiments. The first experiment shows that the very same effect can be found in ascriptions of intentionality in the case of means for action. The second and third experiments show that means are nevertheless generally judged more intentional than side effects, (...) and that people do take into account the structure of the action when ascribing intentionality. We then discuss a number of hypotheses that can account for these data, using reactions times from our first experiment. (shrink)

‘Frankfurt-style cases’ (FSCs) are widely considered as having refuted the Principle of Alternate Possibilities (PAP) by presenting cases in which an agent is morally responsible even if he could not have done otherwise. However, Neil Levy (J Philos 105:223–239, 2008) has recently argued that FSCs fail because we are not entitled to suppose that the agent is morally responsible, given that the mere presence of a counterfactual intervener is enough to make an agent lose responsibility-grounding abilities. Here, I distinguish two (...) kinds of Frankfurt counter-arguments against the PAP: the direct and the indirect counter-arguments. I then argue that Levy’s argument, if valid, can shed doubt on the indirect argument but leaves the direct argument untouched. I conclude that FSCs can still do their job, even if we grant that the mere presence of a counterfactual intervener can modify an agent’s abilities. (shrink)

Do laypeople think that moral responsibility is compatible with determinism? Recently, philosophers and psychologists trying to answer this question have found contradictory results: while some experiments reveal people to have compatibilist intuitions, others suggest that people could in fact be incompatibilist. To account for this contradictory answers, Nichols and Knobe (2007) have advanced a ‘performance error model’ according to which people are genuine incompatibilist that are sometimes biased to give compatibilist answers by emotional reactions. To test for this hypothesis, we (...) investigated intuitions about determinism and moral responsibility in patients suffering from behavioural frontotemporal dementia. Patients suffering from bvFTD have impoverished emotional reaction. Thus, the ‘performance error model’ should predict that bvFTD patients will give less compatibilist answers. However, we found that bvFTD patients give answers quite similar to subjects in control group and were mostly compatibilist. Thus, we conclude that the ‘performance error model’ should be abandoned in favour of other available model that best fit our data. (shrink)

The debate over whether free will and determinism are compatible is controversial, and produces wide scholarly discussion. This paper argues that recent studies in experimental philosophy suggest that people are in fact “natural compatibilists”. To support this claim, it surveys the experimental literature bearing directly or indirectly upon this issue, before pointing to three possible limitations of this claim. However, notwithstanding these limitations, the investigation concludes that the existing empirical evidence seems to support the view that most people have compatibilist (...) intuitions. (shrink)

In the past decade, a number of empirical researchers have suggested that laypeople have compatibilist intuitions. In a recent paper, Feltz and Millan have challenged this conclusion by claiming that most laypeople are only compatibilists in appearance and are in fact willing to attribute free will to people no matter what. As evidence for this claim, they have shown that an important proportion of laypeople still attribute free will to agents in fatalistic universes. In this paper, we first argue that (...) Feltz and Millan’s error-theory rests on a conceptual confusion: it is perfectly acceptable for a certain brand of compatibilist to judge free will and fatalism to be compatible, as long as fatalism does not prevent agents from being the source of their actions. We then present the results of two studies showing that laypeople’s intuitions are best understood as following a certain brand of source compatibilism rather than a “free-will-no-matter-what” strategy. (shrink)

Tullmann et Buckwalter (2014) ont récemment soutenu que le paradoxe de la fiction tenait plus de l’illusion que de la réalité. D’après eux, les théories contemporaines des émotions ne fourniraient aucune raison d’adopter une interprétation du terme « existence » qui rende les prémisses du paradoxe incompatibles entre elles. Notre discussion a pour but de contester cette manière de dissoudre le paradoxe de la fiction en montrant qu’il ne prend pas sa source dans les théories contemporaines des émotions. Bien plutôt, (...) son origine se situe dans ce que Radford (1975) décrit comme une incohérence dans nos réactions émotionnelles aux évènements fictionnels et non fictionnels. Malgré ce désaccord, nous concédons à Tullmann et Buckwalter qu’une solution satisfaisante au paradoxe de la fiction doit s’appuyer sur les théories des émotions. Ainsi, en guise de conclusion, nous expliquons comment il convient de comprendre l’incohérence en question et comment les théories des émotions pourraient contribuer à la résolution du paradoxe de la fiction. (shrink)

Why is it that most fictions present one and only one ending, rather than multiple ones? Fictions presenting multiple endings are possible, because a few exist; but they are very rare, and this calls for an explanation. We argue that such an explanation is likely to shed light on our engagement with fictions, for fictions having one and only one ending seem to be ubiquitous. After dismissing the most obvious explanations for this phenomenon, we compare the scarcity of multiple endings (...) in traditional kinds of fiction to their profusion in the case of interactive fictions. This contrast poses a challenge to accounts of our engagement with fictions in terms of games of make-believe. We conclude that solving this puzzle is likely to improve our philosophical understanding of fictions. (shrink)

Sripada has recently advanced a new account for asymmetries that have been uncovered in folk judgments of intentionality: the ?Deep Self model,? according to which an action is more likely to be judged as intentional if it matches the agent's central and stable attitudes and values (i.e., the agent's Deep Self). In this paper, we present new experiments that challenge this model in two ways: first, we show that the Deep Self model makes predictions that are falsified, then we present (...) cases that it cannot account for. Finally, we discuss how the Deep Self model could be modified to accommodate these new data. (shrink)

The ‘Knobe effect’ is the name given to the empirical finding that judgments about whether an action is intentional or not seems to depend on the moral valence of this action. To account for this phenomenon, Scaife and Webber have recently advanced the ‘Consideration Hypothesis’, according to which people’s ascriptions of intentionality are driven by whether they think the agent took the outcome in consideration when taking his decision. In this paper, I examine Scaife and Webber’s hypothesis and conclude that (...) it is supported neither by the existing literature nor by their own experiments, whose results I did not replicate, and that the ‘Consideration Hypothesis’ is not the best available account of the ‘Knobe Effect’. (shrink)

Based on a puzzling pattern in our judgements about intentional action, Knobe [. “Intentional Action and Side-Effects in Ordinary Language.” Analysis 63: 190–194] has claimed that these judgements are shaped by our moral judgements and evaluations. However, this claim goes directly against a key conceptual intuition about intentional action – the “frame-of-mind condition”, according to which judgements about intentional action are about the agent’s frame-of-mind and not about the moral value of his action. To preserve this intuition Hindriks [. “Intentional (...) Action and the Praise-Blame Asymmetry.” The Philosophical Quarterly 58: 630–641;. “Normativity in Action: How to Explain the Knobe Effect and its Relatives.” Mind & Language 29: 51–72] has proposed an alternate account of the Knobe Effect. According to his “Normative Reason account of Intentional Action”, a side-effect counts as intentional only when the agent thought it constituted a normative reason not to act but did not care. In... (shrink)

“Frankfurt-style cases” are widely considered as having refuted the Principle of Alternate Possibilities by presenting cases in which an agent is morally responsible even if he could not have done otherwise. However, Neil Levy has recently argued that FSCs fail because our intuitions about cases involving counterfactual interveners are inconsistent, and this inconsistency is best explained by the fact that our intuitions about such cases are grounded in an internalist prejudice about the location of mental states and capacities. In response (...) to this challenge, we argue that there is no inconsistency in our intuitions about cases involving CIs, as soon as we draw the comparison properly, and that intuitions about such cases do not rest on an internalist prejudice, but on a more basic distinction between two kinds of dispositions. Additionally, we discus... (shrink)

We use psychological concepts (e.g., intention and desire) when we ascribe psychological states to others for purposes of describing, explaining, and predicting their actions. Does the evidence reported by Knobe show, as he thinks, that moral evaluation shapes our mastery of psychological concepts? We argue that the evidence so far shows instead that moral evaluation shapes the way we report, not the way we think about, others' psychological states.

Dans cet article, nous introduisons le lecteur à une énigme qui a émergé récemment dans la littérature philosophique : celle de l’influence de nos évaluations morales sur nos intuitions au sujet de la nature des actions intentionnelle. En effet, certaines données issues de la philosophie expérimentale semblent suggérer que nos jugements quant au statut intentionnel d’une action dépendent de notre évaluation de ladite action. De nombreuses théories ont été proposées pour rendre compte de ces résultats. Nous défendons la thèse selon (...) laquelle aucune des théories existantes n’est satisfaisante et que le mystère reste pour l’instant entier. (shrink)

In the remainder of this article, we will disarm an important motivation for epistemic contextualism and interest-relative invariantism. We will accomplish this by presenting a stringent test of whether there is a stakes effect on ordinary knowledge ascription. Having shown that, even on a stringent way of testing, stakes fail to impact ordinary knowledge ascription, we will conclude that we should take another look at classical invariantism. Here is how we will proceed. Section 1 lays out some limitations of previous (...) research on stakes. Section 2 presents our study and concludes that there is little evidence for a substantial stakes effect. Section 3 responds to objections. The conclusion clears the way for classical invariantism. (shrink)

This article examines whether people share the Gettier intuition (viz. that someone who has a true justified belief that p may nonetheless fail to know that p) in 24 sites, located in 23 countries (counting Hong-Kong as a distinct country) and across 17 languages. We also consider the possible influence of gender and personality on this intuition with a very large sample size. Finally, we examine whether the Gettier intuition varies across people as a function of their disposition to engage (...) in “reflective” thinking. (shrink)

Is behavioral integration (i.e., which occurs when a subjects assertion that p matches her non-verbal behavior) a necessary feature of belief in folk psychology? Our data from nearly 6,000 people across twenty-six samples, spanning twenty-two countries suggests that it is not. Given the surprising cross-cultural robustness of our findings, we suggest that the types of evidence for the ascription of a belief are, at least in some circumstances, lexicographically ordered: assertions are first taken into account, and when an agent sincerely (...) asserts that p, non-linguistic behavioral evidence is disregarded. In light of this, we take ourselves to have discovered a universal principle governing the ascription of beliefs in folk psychology. (shrink)

Does the Ship of Theseus present a genuine puzzle about persistence due to conflicting intuitions based on “continuity of form” and “continuity of matter” pulling in opposite directions? Philosophers are divided. Some claim that it presents a genuine puzzle but disagree over whether there is a solution. Others claim that there is no puzzle at all since the case has an obvious solution. To assess these proposals, we conducted a cross-cultural study involving nearly 3,000 people across twenty-two countries, speaking eighteen (...) different languages. Our results speak against the proposal that there is no puzzle at all and against the proposal that there is a puzzle but one that has no solution. Our results suggest that there are two criteria—“continuity of form” and “continuity of matter”— that constitute our concept of persistence and these two criteria receive different weightings in settling matters concerning persistence. (shrink)

Past research on folk aesthetics has suggested that most people are subjectivists when it comes to aesthetic judgment. However, most people also make a distinction between good and bad aesthetic taste. To understand the extent to which these two observations conflict with one another, we need a better understanding of people's everyday concept of aesthetic taste. In this paper, we present the results of a study in which participants drawn from a representative sample of the US population were asked whether (...) they usually distinguish between good and bad taste, how they define them, and whether aesthetic taste can be improved. Those who answered positively to the first question were asked to provide their definition of good and bad taste, while those who answered positively to the third question were asked to detail by what means taste can be improved. Our results suggest that most people distinguish between good and bad taste, and think taste can be improved. People's definitions of good and bad taste were varied, and were torn between very subjectivist conceptions of taste and others that lent themselves to a more objectivist interpretation. Overall, our results suggest that the tension Hume observed in conceptions of aesthetic taste is still present today. (shrink)

Emergency situations require individuals to make important changes in their behavior. In the case of the COVID-19 pandemic, official recommendations to avoid the spread of the virus include costly behaviors such as self-quarantining or drastically diminishing social contacts. Compliance (or lack thereof) with these recommendations is a controversial and divisive topic, and lay hypotheses abound regarding what underlies this divide. This paper investigates which cognitive, moral, and emotional traits separate people who comply with official recommendations from those who don't. In (...) four studies (three pre-registered) on both U.S. and French samples, we found that individuals' self-reported compliance with official recommendations during the COVID-19 pandemic was partly driven by individual differences in moral values, disgust sensitivity, and psychological reactance. We discuss the limitations of our studies and suggest possible applications in the context of health communication. (shrink)

Recent empirical and conceptual research has shown that moral considerations have an influence on the way we use the adverb 'intentionally'. Here we propose our own account of these phenomena, according to which they arise from the fact that the adverb 'intentionally' has three different meanings that are differently selected by contextual factors, including normative expectations. We argue that our hypotheses can account for most available data and present some new results that support this. We end by discussing the implications (...) of our account for folk psychology. (shrink)

This article offers an overview of inferential role semantics. We aim to provide a map of the terrain as well as challenging some of the inferentialist’s standard commitments. We begin by introducing inferentialism and placing it into the wider context of contemporary philosophy of language. §2 focuses on what is standardly considered both the most important test case for and the most natural application of inferential role semantics: the case of the logical constants. We discuss some of the (alleged) benefits (...) of logical inferentialism, chiefly with regards to the epistemology of logic, and consider a number of objections. §3 introduces and critically examines the most influential and most fully developed form of global inferentialism: Robert Brandom’s inferentialism about linguistic and conceptual content in general. Finally, in §4 we consider a number of general objections to IRS and consider possible responses on the inferentialist’s behalf. (shrink)

Epistemic utility theory (EUT) is generally coupled with \emph{veritism}. Veritism is the view that truth is the sole fundamental epistemic value. Veritism, when paired with EUT, entails a methodological commitment: Norms of epistemic rationality are justified only if they can be derived from considerations of accuracy alone. According to EUT, then, believing truly has epistemic value, while believing falsely has epistemic disvalue. This raises the question as to how the rational believer should balance the prospect of true belief against the (...) risk of error. A strong intuitive case can be made for a kind of epistemic \emph{conservatism}---that we should disvalue error more than we value true belief. I argue that none of the ways in which advocates of veritist EUT have sought to motivate conservatism can be squared with their methodological commitments. Short of any such justification, they must therefore either abandon their most central methodological principle or else adopt a permissive line with respect to epistemic risk. (shrink)

We consider a case where consumers are faced with a choice between sweatshop-produced clothing and identical clothing produced in high-income countries. We argue that it is morally better for consumers to purchase clothing produced in sweatshops and then to compensate sweatshop workers for the difference between their actual wage and a fair wage than it is for them either to purchase the sweatshop clothing without this compensatory transfer or to purchase clothing produced in high-income countries.

Dans cet article, nous tentons d’élaborer une compréhension philosophique du phénomène de catastrophe. Notre hypothèse initiale consiste à considérer qu’un événement n’est catastrophique qu’en vertu des conséquences qu’il engendre vis-à-vis du sujet qui l’expérimente, à savoir l’être humain. Cela nous mène à défendre l’idée selon laquelle une véritable compréhension du phénomène de catastrophe doit passer par une explicitation des caractéristiques fondamentales du sujet humain, ainsi que de la manière dont elles sont affectées par l’événement catastrophique. Pour ce faire, nous entreprenons (...) de décrire l’être humain à travers l’exploration de la signification des concepts de vie et de monde à travers les différents niveaux d’organisation qui définissent son fonctionnement : l’échelle biologique, l’échelle cognitive, et l’échelle socioculturelle. (shrink)

Are nonhuman non-linguistic animals self-conscious? And how is it possible to find out whether they are or not? This question raises two interrelated problems: the conceptual problem and the methodological problem. In order to approach an answer, it is first and foremost necessary to establish criteria for self-consciousness by considering the phenomenon and the abilities connected with it. Subsequently, one can survey the experimental paradigms. Do the experiments really show that the identified ability has to be used to successfully master (...) the given task? Is the presence of self-consciousness the best explanation for the empirical data? This paper proposes that the underlying ability for self-consciousness is the capacity to have mental states, where the subject is thought of as the subject of the mental state. Furthermore, two important current experimental paradigms will be evaluated for their usefulness to identify the presence of self-consciousness. The verdict will be negative. Neither ‘mirror self-recognition’ nor ‘uncertainty monitoring’ need to employ the aforementioned ability in order to be executed. (shrink)

Is the societal-level of analysis sufficient today to understand the values of those in the global workforce? Or are individual-level analyses more appropriate for assessing the influence of values on ethical behaviors across country workforces? Using multi-level analyses for a 48-society sample, we test the utility of both the societal-level and individual-level dimensions of collectivism and individualism values for predicting ethical behaviors of business professionals. Our values-based behavioral analysis indicates that values at the individual-level make a more significant contribution to (...) explaining variance in ethical behaviors than do values at the societal-level. Implicitly, our findings question the soundness of using societal-level values measures. Implications for international business research are discussed. (shrink)

A presentation of Kant's idea for enlightenment process that was happening at that time. I try to be objective as it is needed to give a thorough explanation for what was the main subject in this process. Kant explains the main idea of enlightenment and describes it with examples for which stands descriptive and understandable for that period.

The roots of the problem of vis-viva or the living forces are potentially from the ancient Greek philosophy, more specifically Aristotle. He wanted to know, What is motion?, Why things move?, Is movement 'real' or 'not-real'?. Answer to this question never came until 16 th century. Philosophers and scientists such as Galileo, Descartes, Huygens, Leibniz, D'Alambert found an approach to this problem that seems rigorously to our observations. Even though, we do not know if that was the intention of Aristotle?

Contigency is a definition for which is noted for not having the principle of contradiction in itself, for which gives a different truths from what we are used to derive from geometry as an essential field for knowledge of creating strong logics. Leibniz clearly states one of his ideas for God, and why there must be contigent truths and necessary truths.

Rule-following is a normative doing and therefore needs to be reconsidered in a metaethical framework. Rule-following will be discussed in the light of cognitivism and non-cognitivism. It will be shown that neither cognitivism nor non-cognitivism are sufficiently good accounts for conceptualizing rule-following, because they are held captive by a quasi-mechanistical picture of rule-following. This idea stems from Stanley Cavell´s and John McDowell´s approach to rule-following. McDowell appeals to the idea that we participate in “shared forms of life” and therefore are (...) able to follow rules correctly. I believe that his quietist view can be amplified by conceptualizing different modes of following a rule. We can also follow a rule e.g. ironically and still grasp the conceptual content of the rule adequately. (shrink)

Is the societal-level of analysis sufficient today to understand the values of those in the global workforce? Or are individual-level analyses more appropriate for assessing the influence of values on ethical behaviors across country workforces? Using multi-level analyses for a 48-society sample, we test the utility of both the societal-level and individual-level dimensions of collectivism and individualism values for predicting ethical behaviors of business professionals. Our values-based behavioral analysis indicates that values at the individual-level make a more significant contribution to (...) explaining variance in ethical behaviors than do values at the societal-level. Implicitly, our findings question the soundness of using societal-level values measures. Implications for international business research are discussed. (shrink)

De se beliefs typically pose a problem for propositional theories of content. The Property Theory of content tries to overcome the problem of de se beliefs by taking properties to be the objects of our beliefs. I argue that the concept of self-ascription plays a crucial role in the Property Theory while being virtually unexplained. I then offer different possibilities of illuminating that concept and argue that the most common ones are either circular, question-begging, or epistemically problematic. Finally, I argue (...) that only a primitive understanding of self-ascription is viable. Self-ascription is the relation that subjects stand in with respect to the properties that they believe themselves to have. As such, self-ascription has to be primitive if it is supposed to do justice to the characteristic features of de se beliefs. (shrink)

Üblicherweise sind die Dinge kompliziert. Dies führt dazu, dass es eine Menge (unvereinbarer) Theorien gibt, die sich diesen Dingen widmen. Manche sind recht einfach gestrickt, andere sind komplexer. Die Existenz dieser unterschiedlichen Ideen sind ein Indiz dafür, dass die Dinge bisher letztlich unerklärt sind. Und sie sind eine Aufforderung, weiter zu denken. Manchmal sind sie aber auch eine Aufforderung, einmal aufzuräumen. Diese Aufgabe habe ich mir zu Herzen genommen und will deswegen in dieser Arbeit (sozusagen als kleiner Reiseführer) einige Theorien (...) zu Handlungsgründen beleuchten. (shrink)

The animal mindreading debate is coined with theoretical and practical problems which have lead some to believe that it has reached a stalemate. Since Premack and Woodruff have asked whether the chimpanzee has a theory of mind over 30 years ago, the question is still on the table. Even though a lot of evidence has been brought forward by both sides, proponents and opponents of the view that animals can be mindreaders, nothing is definitive. The essential problems remain unresolved.

Review of: R. Polansky & W. Wians (eds.), Reading Aristotle. Argument and Exposition, Leiden/Boston, Brill, 2017, in Revue philosophique de Louvain, 117, p. 166-169.

The aim of this paper is to provide some acquaintance with the exegetical history of ἐξαίφνης inside the Platonic Tradition, from Plato to Marsilio Ficino, by way of Middle Platonism and Greek Neoplatonism. (Since this is only a draft, several modifications should be made later, notably in order to improve the English.) Some part has been presented in Los Angeles: “Damascius’ Theodicy: Psychic Input of Disorder and Evil into the World”, 16th Annual ISNS (International Society for Neoplatonic Studies) Conference, Loyola (...) Marymount University, 14th June 2018. (shrink)

Is the basic mechanism behind presupposition projection fundamentally asymmetric or symmetric? This is a basic question for the theory of presupposition, which also bears on broader issues concerning the source of asymmetries observed in natural language: are these simply rooted in superficial asymmetries of language use— language use unfolds in time, which we experience as fundamentally asymmetric— or can they be, at least in part, directly referenced in linguistic knowledge and representations? In this paper we aim to make progress on (...) these questions by exploring presupposition projection across conjunction, which has typically been taken as a central piece of evidence that presupposition projection is asymmetric. As a number of authors have recently pointed out, however, whether or not this conclusion is warranted is not clear once we take into account independent issues of redundancy. Building on previous work by Chemla & Schlenker (2012) and Schwarz (2015), we approach this question experimentally by using an inference task which controls for redundancy and presupposition suspension. We find strong evidence for left-to-right filtering across conjunctions, but no evidence for right-to-left filtering, suggesting that, at least as a default, presupposition projection across conjunction is indeed asymmetric. (shrink)