The traditional possible-worlds model of belief describes agents as ‘logically omniscient’ in the sense that they believe all logical consequences of what they believe, including all logical truths. This is widely considered a problem if we want to reason about the epistemic lives of non-ideal agents who—much like ordinary human beings—are logically competent, but not logically omniscient. A popular strategy for avoiding logical omniscience centers around the use of impossible worlds: worlds that, in one way or another, violate the laws (...) of logic. In this paper, we argue that existing impossible-worlds models of belief fail to describe agents who are both logically non-omniscient and logically competent. To model such agents, we argue, we need to ‘dynamize’ the impossible-worlds framework in a way that allows us to capture not only what agents believe, but also what they are able to infer from what they believe. In light of this diagnosis, we go on to develop the formal details of a dynamic impossible-worlds framework, and show that it successfully models agents who are both logically non-omniscient and logically competent. (shrink)

Evidentialism is the thesis, roughly, that one’s beliefs should fit one’s evidence. The enkratic principle is the thesis, roughly, that one’s beliefs should "line up" with one’s beliefs about which beliefs one ought to have. While both theses have seemed attractive to many, they jointly entail the controversial thesis that self-misleading evidence is impossible. That is to say, if evidentialism and the enkratic principle are both true, one’s evidence cannot support certain false beliefs about which beliefs one’s evidence supports. Recently, (...) a number of epistemologists have challenged the thesis that self-misleading evidence is impossible on the grounds that misleading higher-order evidence does not have the kind of strong and systematic defeating force that would be needed to rule out the possibility of such self-misleading evidence. Here I respond to this challenge by proposing an account of higher-order defeat that does, indeed, render self-misleading evidence impossible. Central to the proposal is the idea that higher-order evidence acquires its normative force by influencing which conditional beliefs it is rational to have. What emerges, I argue, is an independently plausible view of higher-order evidence, which has the additional benefit of allowing us to reconcile evidentialism with the enkratic principle. (shrink)

In this paper I analyze a case of extreme response to need of security in the landscape of advanced democracies: the role of Golden Dawn in the management and reproduction of the profound socio-economic crisis in Greece. I argue that the keys behind the success of such a party are to be found in two distinct but self-reinforcing elements: its organizational strength and its anti-system ideology. The most significant organizational structures and activities which transformed Golden Dawn into a quasi-mafia style (...) “industry of private protection” are thus investigated, along with the most important contents of its radical and anti-systemic message. (shrink)

Orthodox Bayesianism is a highly idealized theory of how we ought to live our epistemic lives. One of the most widely discussed idealizations is that of logical omniscience: the assumption that an agent’s degrees of belief must be probabilistically coherent to be rational. It is widely agreed that this assumption is problematic if we want to reason about bounded rationality, logical learning, or other aspects of non-ideal epistemic agency. Yet, we still lack a satisfying way to avoid logical omniscience within (...) a Bayesian framework. Some proposals merely replace logical omniscience with a different logical idealization; others sacrifice all traits of logical competence on the altar of logical non-omniscience. We think a better strategy is available: by enriching the Bayesian framework with tools that allow us to capture what agents can and cannot infer given their limited cognitive resources, we can avoid logical omniscience while retaining the idea that rational degrees of belief are in an important way constrained by the laws of probability. In this paper, we offer a formal implementation of this strategy, show how the resulting framework solves the problem of logical omniscience, and compare it to orthodox Bayesianism as we know it. (shrink)

Risk propagation encompasses a plethora of techniques for analyzing how risk “spreads” in a given system. Albeit commonly used in technical literature, the very notion of risk propagation turns out to be a conceptually imprecise and overloaded one. This might also explain the multitude of modeling solutions that have been proposed in the lit- erature. Having a clear understanding of what exactly risk is, how it be quantified, and in what sense it can be propagated is fundamental for devising high-quality (...) risk assessment and decision-making solutions. In this paper, we exploit a previous well-established work about the nature of risk and related notions with the goal of providing a proper interpre- tation of the different notions of risk propagation, as well as revealing and harmonizing the alternative semantics for the links used in common risk propagation graphs. Finally, we discuss how these results can be leveraged in practice to model risk propagation scenarios. (shrink)

Friedrich Nietzsche's criticism towards the substance-concept «I» plays an important role in his late thought, and can be properly understood by making reference to the 19th century debate on the scientific psychology. Friedrich Lange and Ernst Mach gave an important contribution to that debate. Both of them developed the ideas of Gustav Fechner, and thought about a «psychology without a soul», i.e. an investigation that gives up with the old metaphysics of substance in dealing with the mind-body problem. In this (...) paper I shall deal with Lange's and Mach's view of the I/soul, in order to shed some light on Nietzsche's rejection of the «I» in philosophy. (shrink)

Should you always be certain about what you should believe? In other words, does rationality demand higher-order certainty? First answer: Yes! Higher-order uncertainty can’t be rational, since it breeds at least a mild form of epistemic akrasia. Second answer: No! Higher-order certainty can’t be rational, since it licenses a dogmatic kind of insensitivity to higher-order evidence. Which answer wins out? The first, I argue. Once we get clearer about what higher-order certainty is, a view emerges on which higher-order certainty does (...) not, in fact, license any kind of insensitivity to higher-order evidence. The view as I will describe it has plenty of intuitive appeal. But it is not without substantive commitments: it implies a strong form of internalism about epistemic rationality, and forces us to reconsider standard ways of thinking about the nature of evidential support. Yet, the view put forth promises a simple and elegant solution to a surprisingly difficult problem in our understanding of rational belief. (shrink)

In this paper, we present a new semantic framework designed to capture a distinctly cognitive or epistemic notion of meaning akin to Fregean senses. Traditional Carnapian intensions are too coarse-grained for this purpose: they fail to draw semantic distinctions between sentences that, from a Fregean perspective, differ in meaning. This has led some philosophers to introduce more fine-grained hyperintensions that allow us to draw semantic distinctions among co-intensional sentences. But the hyperintensional strategy has a flip-side: it risks drawing semantic distinctions (...) between sentences that, from a Fregean perspective, do not differ in meaning. This is what we call the ‘new problem’ of hyperintensionality to distinguish it from the ‘old problem’ that faced the intensional theory. We show that our semantic framework offers a joint solution to both these problems by virtue of satisfying a version of Frege’s so-called ‘equipollence principle’ for sense individuation. Frege’s principle, we argue, not only captures the semantic intuitions that give rise to the old and the new problem of hyperintensionality, but also points the way to an independently motivated solution to both problems. (shrink)

Don’t form beliefs on the basis of coin flips or random guesses. More generally, don’t take belief gambles: if a proposition is no more likely to be true than false given your total body of evidence, don’t go ahead and believe that proposition. Few would deny this seemingly innocuous piece of epistemic advice. But what, exactly, is wrong with taking belief gambles? Philosophers have debated versions of this question at least since the classic dispute between William Clifford and William James (...) near the end of the nineteenth century. Here I reassess the normative standing of belief gambles from the perspective of epistemic decision theory. The main lesson of the paper is a negative one: it turns out that we need to make some surprisingly strong and hard-to-motivate assumptions to establish a general norm against belief gambles within a decision-theoretic framework. I take this to pose a dilemma for epistemic decision theory: it forces us to either make seemingly unmotivated assumptions to secure a norm against belief gambles, or concede that belief gambles can be rational after all. (shrink)

When a belief has been influenced, in part or whole, by factors that, by the believer's own lights, do not bear on the truth of the believed proposition, we can say that the belief has been, in a sense, arbitrarily formed. Can such beliefs ever be rational? It might seem obvious that they can't. After all, belief, supposedly, “aims at the truth.” But many epistemologists have come to think that certain kinds of arbitrary beliefs can, indeed, be rational. In this (...) paper, I want to do two things. First, I want to show that the claim that arbitrary beliefs can be rational is inconsistent with the conjunction of two other attractive claims: one saying that rationality requires a certain kind of epistemic immodesty, and one saying that rationality forbids certain kinds of self-ascriptions of epistemic luck. Second, I want to evaluate different ways one might respond to this inconsistent triad. I won't defend any response in particular, but I'll draw out some notable costs and benefits of each response, which may help shed light on the question of whether arbitrary beliefs can be rational. (shrink)

Although the fictional domain exhibits a prima facie freedom from real-world moral constraints, certain fictive imaginings seem to deserve moral criticism. Capturing both intuitions, this paper argues for double-standard moralism, the view that fictive imaginings are subject to different moral standards than their real-world counterparts. I show how no account has, thus far, offered compelling reasons to warrant the moral appropriateness of this discrepancy. I maintain that the normative discontinuity between fiction and the actual world is moderate, as opposed to (...) one that leaves fictive engagements wholly exempt from moral evaluations. I propose a way of addressing the gamer’s dilemma that is compatible with a moderate kind of discontinuity. Finally, I contend that the audience is justified in adopting deviant moral attitudes in fictional situations because their consequences largely differ from those that analogous real-world events would have. (shrink)

It is a distinctive mark of normal conscious perception that perceived objects are experienced as actually present in one’s surroundings. The aim of this paper is to offer a phenomenologically accurate and empirically plausible account of the cognitive underpinning of this feature of conscious perception, which I shall call perceptual presence. The paper begins with a preliminary characterization of. I then consider and criticize the seminal account of proposed by Mohan Matthen. In the remainder of the paper I put forward (...) and defend my own attentional account. I first outline a simple version of the view by focusing on vision and then extend it to audition. After discussing the case of depersonalization, I consider some objections. The last objection, in particular, will motivate a refinement of the attentional account for the visual case. The paper ends with some remarks mainly about the specificity of the visual case vis-à-vis the auditory one. (shrink)

Many theories of rational action are predicated on the idea that what it is rational to do in a given situation depends, in part, on what it is rational to believe in that situation. In short: they treat epistemic rationality as explanatorily prior to practical rationality. If they are right in doing so, it follows, on pain of explanatory circularity, that epistemic rationality cannot itself be a form of practical rationality. Yet, many epistemologists have defended just such a view of (...) epistemic rationality. According to them, there is no such thing as a distinctively epistemic form of rationality which could be explanatorily prior to practical rationality. Rather, they maintain, there is just one form of rationality—practical rationality—of which epistemic rationality is a species. What to make of this conflict? The aim of this paper is to motivate a view about the relationship between epistemic and practical rationality which resolves the conflict in a way that should be attractive to both sides. The central idea is to ground both epistemic and practical rationality in an independently motivated notion of evidential probability which is itself to be understood in non-normative terms. Doing so, I argue, allows us to unify epistemic and practical rationality in a way that does justice to the idea that what it is rational to do depends, in part, on what it is rational to believe; and to do so in a way that avoids explanatory circularity. (shrink)

Nei paragrafi conclusivi della terza dissertazione della "Genealogia della morale" Nietzsche espone l'obiettivo della propria filosofia matura e circoscrive il compito al quale intende dedicarsi negli anni a venire. Quest'ultimo consiste principalmente nel porre in questione ciò che la filosofia non ha mai affrontato problematicamente e operare in particolare una critica del «valore della verità», che è per Nietzsche anche una critica della morale e della cultura europee.

Titelbaum Oxford studies in epistemology, 2015) has recently argued that the Enkratic Principle is incompatible with the view that rational belief is sensitive to higher-order defeat. That is to say, if it cannot be rational to have akratic beliefs of the form “p, but I shouldn’t believe that p,” then rational beliefs cannot be defeated by higher-order evidence, which indicates that they are irrational. In this paper, I distinguish two ways of understanding Titelbaum’s argument, and argue that neither version is (...) sound. The first version can be shown to rest on a subtle, but crucial, misconstrual of the Enkratic Principle. The second version can be resisted through careful consideration of cases of higher-order defeat. The upshot is that proponents of the Enkratic Principle are free to maintain that rational belief is sensitive to higher-order defeat. (shrink)

Many theories of rational belief give a special place to logic. They say that an ideally rational agent would never be uncertain about logical facts. In short: they say that ideal rationality requires "logical omniscience." Here I argue against the view that ideal rationality requires logical omniscience on the grounds that the requirement of logical omniscience can come into conflict with the requirement to proportion one’s beliefs to the evidence. I proceed in two steps. First, I rehearse an influential line (...) of argument from the "higher-order evidence" debate, which purports to show that it would be dogmatic, even for a cognitively infallible agent, to refuse to revise her beliefs about logical matters in response to evidence indicating that those beliefs are irrational. Second, I defend this "anti-dogmatism" argument against two responses put forth by Declan Smithies and David Christensen. Against Smithies’ response, I argue that it leads to irrational self-ascriptions of epistemic luck, and that it obscures the distinction between propositional and doxastic justification. Against Christensen’s response, I argue that it clashes with one of two attractive deontic principles, and that it is extensionally inadequate. Taken together, these criticisms will suggest that the connection between logic and rationality cannot be what it is standardly taken to be—ideal rationality does not require logical omniscience. (shrink)

Guessing is a familiar activity, one we engage in when we are uncertain of the answer to a question under discussion. It is also an activity that lends itself to normative evaluation: some guesses are better than others. The question that interests me here is what makes for a good guess. In recent work, Dorst and Mandelkern have argued that good guesses are distinguished from bad ones by how well they optimize a tradeoff between accuracy and specificity. Here I argue (...) that Dorst and Mandelkern’s implementation of this idea fails to satisfy some plausible constraints on good guesses, and I develop an alternative implementation that satisfies the relevant constraints. The result is a new account of good guesses which retains the positive aspects of Dorst and Mandelkern’s proposal, but without the drawbacks. (shrink)

Our aim in this chapter is to draw attention to what we see as a disturbing feature of conciliationist views of disagreement. Roughly put, the trouble is that conciliatory responses to in-group disagreement can lead to the frustration of a group's epistemic priorities: that is, the group's favoured trade-off between the "Jamesian goals" of truth-seeking and error-avoidance. We show how this problem can arise within a simple belief aggregation framework, and draw some general lessons about when the problem is most (...) pronounced. We close with a tentative proposal for how to solve the problem raised without rejecting conciliationism. (shrink)

Based on Kolchinsky and Wolpert’s work on the semantics of autonomous agents, I propose an application of Mathematical Logic and Probability to model cognitive processes. In this work, I will follow Bateson’s insights on the hierarchy of learning in complex organisms and formalize his idea of applying Russell’s Type Theory. Following Weaver’s three levels for the communication problem, I link the Kolchinsky–Wolpert model to Bateson’s insights, and I reach a semantic and conceptual hierarchy in living systems as an explicative model (...) of some adaptive constraints. Due to the generality of Kolchinsky and Wolpert’s hypotheses, I highlight some fundamental gaps between the results in current Artificial Intelligence and the semantic structures in human beings. In light of the consequences of my model, I conclude the paper by proposing a general definition of knowledge in probabilistic terms, overturning de Finetti’s Subjectivist Definition of Probability. (shrink)

People don't always speak the truth. When they don't, we do better not to trust them. Unfortunately, that's often easier said than done. People don't usually wear a ‘Not to be trusted!’ badge on their sleeves, which lights up every time they depart from the truth. Given this, what can we do to figure out whom to trust, and whom not? My aim in this paper is to offer a partial answer to this question. I propose a heuristic—the “Humility Heuristic”—which (...) is meant to help guide our search for trustworthy advisors. In slogan form, the heuristic says: people worth trusting admit to what they don't know. I give this heuristic a precise probabilistic interpretation, offer a simple argument for it, defend it against some potential worries, and demonstrate its practical worth by showing how it can help address some difficult challenges in the relationship between experts and laypeople. (shrink)

In this paper, we present a new account of teleological reasons, i.e. reasons to perform a particular action because of the outcomes it promotes. Our account gives the desired verdict in a number of difficult cases, including cases of overdetermination and non-threshold cases like Parfit’s famous _Drops of water._ The key to our account is to look more closely at the metaphysics of causation. According to Touborg (_The dual nature of causation_, 2018), it is a necessary condition for causation that (...) a cause increases the security of its effect. Building on this idea, we suggest, roughly, that you have a teleological reason to act in a certain way when doing so increases the security of some good outcome. This represents a middle way between the proposal that you have a reason to act in a certain way just in case this _would_ cause a good outcome and the proposal that you have a reason to act in a certain way just in case this _could_ cause a good outcome. (shrink)

The debate on the epistemology of disagreement has so far focused almost exclusively on cases of disagreement between individual persons. Yet, many social epistemologists agree that at least certain kinds of groups are equally capable of having beliefs that are open to epistemic evaluation. If so, we should expect a comprehensive epistemology of disagreement to accommodate cases of disagreement between group agents, such as juries, governments, companies, and the like. However, this raises a number of fundamental questions concerning what it (...) means for groups to be epistemic peers and to disagree with each other. In this paper, we explore what group peer disagreement amounts to given that we think of group belief in terms of List and Pettit’s ‘belief aggregation model’. We then discuss how the so-called ‘equal weight view’ of peer disagreement is best accommodated within this framework. The account that seems most promising to us says, roughly, that the parties to a group peer disagreement should adopt the belief that results from applying the most suitable belief aggregation function for the combined group on all members of the combined group. To motivate this view, we test it against various intuitive cases, derive some of its notable implications, and discuss how it relates to the equal weight view of individual peer disagreement. (shrink)

The environmental crisis challenges the adequacy of traditional moral theories, particularly in the case of act consequentialism – the view that an act is morally right if and only if it brings about the best available outcome. Although anthropogenic climate change threatens the well-being of billions of humans and trillions of non-human animals, it is difficult for an act consequentialist to condemn actions that contribute to it, as each individual action makes no difference to the probability of whether climate change (...) will occur. Or so one argument goes. This chapter examines the limits and possibilities of a consequentialist approach to climate ethics. It discusses various types of consequentialist theories applicable to the current environmental situation. It outlines outcome-based strategies to address the no-difference problem and to promote individual climate action. Finally, it considers environmental cases of evaluative uncertainty and how a consequentialist could deal with them. (shrink)

Abstract: Nietzsche’s famously wrote that “consciousness is a surface” (EH, Why I am so clever, 9: 97). The aim of this paper is to make sense of this quite puzzling contention—Superficiality, for short. In doing this, I shall focus on two further claims—both to be found in Gay Science 354—which I take to substantiate Nietzsche’s endorsement of Superficiality. The first claim is that consciousness is superfluous—which I call the “superfluousness claim” (SC). The second claim is that consciousness is the source (...) of some deep falsification—which I call the “falsification claim” (FC). I shall start by considering Nietzsche’s notion of consciousness. Here, I shall argue that the kind of consciousness he is concerned with is in fact self-consciousness and that he put forward a higher-order theory of it. Then, I shall address the two claims. Regarding (FC), my proposal will be that, according to Nietzsche, the content of (self-)conscious mental states is falsified in virtue of its being articulated propositionally. Regarding (SC), I shall claim that it is best read as a weak version of epiphenomenalism about conscious causation. In addressing both points, I shall discuss in particular the influential reading of Nietzsche’s theory of consciousness offered by Katsafanas (2005). (shrink)

Many epistemologists have endorsed a version of the view that rational belief is sensitive to higher-order defeat. That is to say, even a fully rational belief state can be defeated by misleading higher-order evidence, which indicates that the belief state is irrational. In a recent paper, however, Maria Lasonen-Aarnio calls this view into doubt. Her argument proceeds in two stages. First, she argues that higher-order defeat calls for a two-tiered theory of epistemic rationality. Secondly, she argues that there seems to (...) be no satisfactory way of avoiding epistemic dilemmas within a two-tiered framework. Hence, she concludes that the prospects look dim for making sense of higher-order defeat within a broader theoretical picture of epistemic rationality. Here I aim to resist both parts of Lasonen-Aarnio’s challenge. First, I outline a way of accommodating higher-order defeat within a single-tiered framework, by amending epistemic rules with appropriate provisos for different kinds of higher-order defeat. Secondly, I argue that those who nevertheless prefer to accommodate higher-order defeat within a two-tiered framework can do so without admitting to the possibility of epistemic dilemmas, since epistemic rules are not always accompanied by ‘oughts’ in a two-tiered framework. The considerations put forth thus indirectly vindicate the view that rational belief is sensitive to higher-order defeat. (shrink)

This chapter aims to deepen Donald Schön’s insight about jazz playing as an example of what he calls “reflection-in-action” (RiA) by situating this notion within the enactive view of humans as linguistic bodies. Our main claim is that the knowl-edge or skills displayed by expert jazz musicians must be understood as aural and communicative in nature. After presenting the notions of RiA and linguistic bodies, we develop our view through a critical discussion of four statements from Schön’s passage on jazz (...) musicianship, before wrapping up and clarifying the position we are advocating. This way, we suggest a revised version of Schön’s concept, which we call “reflection in communicative jazz action.". (shrink)

This paper is about a problem that can arise when we try to harness the “wisdom of the crowd” from groups comprised of individuals who exhibit a certain kind of epistemic humility in the way they respond to testimonial evidence. I begin by setting out the problem and then make some initial steps toward solving it. The solution I develop is tentative and may not apply in all circumstances, but it promises to alleviate what seems to me to be a (...) problem of both theoretical interest and practical importance. (shrink)

Nietzsche believes that we do not know our own actions, nor their real motives. This belief, however, is but a consequence of his assuming a quite general skepticism about introspection. The main aim of this paper is to offer a reading of this last view, which I shall call the Inner Opacity (IO) view. In the first part of the paper I show that a strong motivation behind IO lies in Nietzsche’s claim that self-knowledge exploits the same set of cognitive (...) capacities as well as the same folk-psychological framework involved in outward-directed mind-reading. In the second part I turn to Nietzsche’s view of agency and argue that he sees a fundamental discrepancy between the conscious attitudes we have introspective access to, on the one hand, and the subpersonal processes and states occurring at the unconscious level of the drives, on the other hand. (shrink)

The aim of this paper is to trace one of the deepest roots of Hegel's concept of history within Kant's doctrine of schematism. I propose to draw a line of continuity between Kant's Einbildungskraft and Hegel's Selbstbewusstsein. The concept of Selbstbewusstsein of the young Hegel is to be understood, in my view, as the moment when the extreme and radical consequences are drawn from the schematism of the first Critique, revised in the light of Kant's reflections on teleology developed in (...) the Critique of Judgment. In this sense, Hegel can be seen as the 'solution' to the rift that opened up in the heart of Western culture during the Enlightenment. (shrink)

Secondo la teoria dell’errore tutte le proposizioni morali sono false poiché non si riferiscono ad alcun referente nel mondo. Se tale metaetica fosse corretta, dovremmo abbandonare il pensiero morale o continuare come nulla fosse? Come vivremmo se nelle nostre scelte non tenessimo conto di alcuna considerazione morale? L’abolizionismo morale argomenta che le nostre vite risulterebbero essere migliori, e perciò tenta di persuaderci a eliminare le pratiche morali. Questo contributo presenta un’introduzione critica al progetto abolizionista, indagandone le ragioni e mettendone in (...) luce le difficoltà. L’abolizionismo morale verrà collocato all’interno di una più ampia cornice metaetica e quindi confrontato con il finzionalismo e il conservazionismo morale. Infine, verrà esaminata la distinzione tra abolizionismo morale assertivo e non-assertivo. (shrink)

During his late period, Nietzsche is particularly concerned with the value that mankind attributes to truth. In dealing with that topic, Nietzsche is not primarly interested in the metaphysical disputes on truth, but rather in the effects that the "will to truth" has on the human being. In fact, he argues that the "faith in a value as such of truth" influenced Western culture and started the anthropological degeneration of the human type that characterizes European morality. To call into question (...) the value of truth is therefore necessary, if one wants to help mankind to find her way in the labyrinth of nihilism. -/- In this new addition to Nietzsche scholarship, Gori explores the origin and aim of the philosopher's late perspectival thought by merging the theoretical with the historical approach, with a special focus on the epistemological debate that influenced Nietzsche. As a result, the book provides a contextual reading of the issue that supports the idea that Nietzsche’s attitude in addressing the problem of truth is, in a broad sense, pragmatic. (shrink)

The late Nietzsche defended a position which he sometimes to refers as ‘sensualism’ and which consists of two main theses: senses ‘do not lie’ (T1) and sense organs are ‘causes’ (T2). Two influential interpretations of this position have been proposed by Clark and Hussain, who also address the question whether Nietzsche's late sensualism is (Hussain) or not (Clark) compatible with the epistemological view which he held in his previous work and which has been dubbed the ‘falsification thesis’ (FT). In my (...) paper I will show that both readings raise substantial difficulties and propose an alternative account of Nietzsche's sensualism. In particular, I will argue: (a) that according to Nietzsche the representational content of sensory experience ‘does not lie’ since it is physically grounded in causal exchanges with the external world which are mediated by sense organs; (b) that Nietzsche believes that the claim that senses ‘do not lie’ is also true of the phenomenal, qualitative content of sensory experience; and (c) that FT, despite its prima facie tension with (a) and (b), fit well Nietzsche's sensualism. (shrink)

Epistemic logics based on the possible worlds semantics suffer from the problem of logical omniscience, whereby agents are described as knowing all logical consequences of what they know, including all tautologies. This problem is doubly challenging: on the one hand, agents should be treated as logically non-omniscient, and on the other hand, as moderately logically competent. Many responses to logical omniscience fail to meet this double challenge because the concepts of knowledge and reasoning are not properly separated. In this paper, (...) I present a dynamic logic of knowledge that models an agent’s epistemic state as it evolves over the course of reasoning. I show that the logic does not sacrifice logical competence on the altar of logical non- omniscience. (shrink)

Over the last decade, philosophers of science have extensively criticized the epistemic superiority of randomized controlled trials for testing safety and effectiveness of new drugs, defending instead various forms of evidential pluralism. We argue that scientific methods in regulatory decision-making cannot be assessed in epistemic terms only: there are costs involved. Drawing on the legal distinction between rules and standards, we show that drug regulation based on evidential pluralism has much higher costs than our current RCT-based system. We analyze these (...) costs and advocate for evaluating any scheme for drug regulatory tests in terms of concrete empirical benchmarks, like the error rates of regulatory decisions. (shrink)

The paper aims to investigate some aspects of Ernst Mach’s epistemology in the light of the problem of human orientation in relation to the world (Weltorientierung), which is a main topic of Western philosophy since Kant. As will be argued, Mach has been concerned with that problem, insofar as he developed an original pragmatist epistemology. In order to support my argument, I firstly investigate whether Mach defended a nominalist or a realist account of knowledge and compare his view to those (...) elaborated by other pragmatist thinkers, such as W. James, H. Vaihinger and H. Poincaré. Secondly, the question of what does it mean, for Mach, to orient ourselves in science is addressed. Finally, it will be argued that, although Mach tried to keep his epistemology restricted to a mere operational and economical account of science, that question involves the wider plane of practical philosophy. (shrink)

Hans Kleinpeter’s letters to Ernst Mach held in the Deutsches Museum Archive in Munich are of the greatest importance in order to learn some details of the working relationship between these scholars. In the three letters here entirely published for the first time Kleinpeter shows his interest for Nietzsche’s thought, and states that some of the latter’s ideas are in compliance with Mach’s epistemology.

This paper investigates the argument that substantiates Nietzsche's refusal of teh Kantian concept of thing in itself. As Maudmarie Clark points out, Nietzsche dismisses this notion because he views it as self-contradictory. The main concern of the paper will be to account for this position. In particular, the two main theses defended here are that the argument underlying Nietzsche's claim is that the concept of thing in itself amounts to the inconsistent idea of a propertyless thing and that this argument (...) is a sound one. Finally, I will show that the reading proposed allows a deflationary response to the objection that Nietzsche's will to power is simply a new version of the post-Kantian thing in itself.Dieser Aufsatz untersucht die Argumentation, die Nietzsches Zurückweisung des kantischen Begriffs des Dings an sich untermauert. Wie Maudmarie Clark betont, berwift Nietzsche diesen Begriff als selbstwidersprüchlich. Hauptanliegen des Aufsatzes ist, dies deutlich zu machen. Insbesondere werden folgende zwei Thesen vertrenen: dass das Nietzsches Position zugrundeliegende Argument darin besteht, der Begriff des Dings an sich sei der inkonsistente Begriff eines eigenschaftslosen Dings; dass dieses Argument stichhaltig ist. Schließlich wird gezeigt, dass diese Interpretation eine delfationäre Antwort auf den Einwand ermöglicht, Nietzsches Wille zur Macht sei einfach eine neue Variante des postkantischen Dings an sich. (shrink)

The chapter explores comparatively the attention to the practical dimension that—each in his own way—Michel Foucault, Friedrich Nietzsche, and the classic pragmatist thinker William James pay when confronted with the challenge of providing a non-skeptical response to the relativist stance on truth that arose in the post-Kantian age. Particular focus will be given to the extent to which these three authors conceived of the practical framework as the only one that allows us to meaningfully address and determine truth.

The paper provides a thorough account of the relationship between Ernst Mach’s thought and that of an apparently more intellectually distant near-contemporary, Friedrich Nietzsche. The consistency of their views is in fact substantial, as I try to show within the paper. Despite their interests being different, both Mach and Nietzsche were concerned with the same issues about our intellectual relationship with the external world, dealing with the same questions and pursuing a common aim of eliminating worn-out philosophical conceptions. Moreover, it (...) can be argued that both Mach and Nietzsche converged on what we now know as the problem of realism versus anti-realism in the philosophy of science, and that they both rejected ‘representational’ (realist) conceptions of science in favour of a certain sort of pragmatic anti-realism, whose focus was on the role science plays as a means of orientation. (shrink)

In this paper I argue that Nietzsche's view on consciousness is best captured by distinguishing different notions of consciousness. In other words, I propose that Nietzsche should be read as endorsing pluralism about consciousness. First, I consider the notion that is preeminent in his work and argue that the only kind of consciousness which may fit the characterization Nietzsche provides of this dominant notion is self-consciousness. Second, I argue that in light of Nietzsche's treatment of perceptions and sensations we should (...) conclude that he takes each of such state types to involve a specific kind of consciousness which differs from Sconsciousness. I label these two additional kinds of consciousness perceptual consciousness and qualitative consciousness, respectively. I conclude the paper with some remarks on how, in Nietzsche's picture, these three different kinds of consciousness might relate. (shrink)

Analysing Cassirer's positions in the Nachruf dedicated to Natorp (1925) and in the third volume of the Philosophy of Symbolic Forms (1929), I will try in this short paper to outline the core, merits, and limitations of Natorp's psychology in Cassirer's interpretation. In doing so, I will emphasise three elements: 1. the cornerstones of Natorpian psychology, which for Cassirer represent Natorp's main contribution to the history of ideas; 2. the thematic unity of Natorp's philosophical production; 3. the fundamental continuity between (...) Natorp's research and that of Cassirer. These three aspects are interwoven and belong in some way to the inner development of Marburg Neo-Kantianism. (shrink)

In Part One of Beyond Good and Evil Nietzsche writes that anyone who believes in “immediate certainties” such as “I think” encounters a series of “metaphysical questions”. The most important of these “problems of intellectual knowledge” concerns the existence of an ‘I’, as much as our believing it to be the cause of thinking. Therefore, any remark about our mental faculties directly follows from our defining what we could call the basic psychical unity, i.e. our view on higher-level psychical functions (...) is strictly related with the properties we attribute to the notion of ‘I’. As we know, the main ideas on this subject that Nietzsche states in his book from 1886 come from the neo-kantian views of Lange, Spir and Teichmüller, and we cannot forget the important (even if hidden) reference to Lichtenberg in § 17 of the same work. Nevertheless, Nietzsche seems to move beyond all these sources, and in many of his writings we can find a new definition of the ‘ego’, finally free from any reference to a thing in itself, and for this reason closer to the ideas of the Austrian scientist Ernst Mach. In this paper I shall carry these remarks out. I’ll show the main properties of the notion of ‘I’ Nietzsche concerns with in his writings and, therefore, the grounds of his view on the mind-body problem. Moreover, I will argue that, once we observe that Nietzsche looks at the ‘ego’ as a mere regulative fiction having no ontological value out of the chain of sensation and representation it brings together, we could find out the close similarity with the way Mach defines it in his Beiträge zur Analyse der Empfindungen (1886). This reference could help us to understand in a better way some statements Nietzsche wrote in his notebooks, and, secondly, to show how strictly was his philosophy of mind related with the main outcomes of 19th century science. Indeed, Nietzsche’s refusal of the belief “that there must necessarily be something that thinks” ‒ a view that results from the anti-metaphysical intent leading his naturalism ‒ seems to be one of the most important assumptions of the new born physiological psychology, an idea out of which many of the 20th century philosophical debates arose. (shrink)

ITA: Quello del “buon europeo” è in Nietzsche un tema significativo, che si presenta originariamente connesso alle riflessioni di Nietzsche sulla cultura europea, arricchendosi col tempo di una portata filosofica che si lega agli obiettivi del suo pensiero maturo. Scopo del presente articolo è di mostrare la genesi e l’evoluzione di tale concetto, a partire dalle sue prime occorrenze in Umano, troppo umano I fino al suo compiuto sviluppo negli scritti del 1885-87. Tale studio permetterà di evidenziare il particolare valore (...) che Nietzsche attribuisce ai “buoni europei”, in quanto promotori dello sviluppo spirituale conseguente alla compiuta liberazione della morale cristiana. ENG: The “good European” is a rich and important topic in Nietzsche. It is first related to Nietzsche’s early reflections on European culture, and during the 1880’s it gains philosophical value, being strictly connected with the purposes of Nietzsche’s mature thought. The aim of this paper is to track the genesis and development of the notion of “good European”, from Human, all too Human I to Nietzsche’s writings from the years 1885-1887. That investigation shall particularly show the meaning and value that Nietzsche attributes to the good Europeans; as for him, they are in fact the leaders of the spiritual development that follows the overcoming of Christian morality. (shrink)

During the second decade of the 20th century Hans Kleinpeter, an Austrian scholar devoted to the development of the modern science, published some brief papers on Nietzsche’s thought. Kleinpeter has been one of the main upholders of Mach’s epistemology and probably the first who connected his ideas with the philosophy of Nietzsche. In his book on Der Phänomenalismus (1913) he described a new world view that arose in the 19th century, a perspective that ‒ according to him ‒ completely contrasted (...) the mechanistic and metaphysical world view of the old school of scientific inquiry. The main outcome of the scientists whose name was related with this perspective (e.g. Clifford, Maxwell, Kirchoff and, obviously, Mach himself) has been the refusal of the absolute value of any “truth”. Kleinpeter’s statements on this topic are a good example of the rising of a Scientific Philosophy, whose development involved many scientists and thinkers that later set up the Verein Ernst Mach and the Wiener Kreis. On the other hand, his interest on Nietzsche is a relevant case of reception of the latter’s thought, that Kleinpeter puts into the context of the contemporary epistemology. In fact, he considers Nietzsche as one of the main upholders of the phenomenalistic world view, and states that he «took part at the same renewal of philosophical investigation that arose from the latest results of scientific inquiry» during the 19th century. A renewal whose main outcomes has been presented by John Stallo in his book on The Concepts and Theories of Modern Physics (1881), which Kleinpeter translated in German and published in 1901. According to Kleinpeter, in Nietzsche’s writings (mostly unpublished) one can find a theory of knowledge quite close to the one presented by both Mach and the new born Pragmatism, i.e. the complete refusal of an absolute truth and, therefore, the development of an antimetaphysical world view. In my paper I’ll discuss the main statements presented by Kleinpeter on this topic and show which of Nietzsche’s ideas has actually been in compliance with the main outcomes of late 19th century science. Thus, I’ll carry out a reconstruction of an unfamiliar side of the first period of reception of the philosophy of Nietzsche and its relevance to the development of a new (scientific) world view. (shrink)

Friedrich Nietzsche’s criticism towards the substance-concept „I“ plays an important role in his late thought, and can be properly understood by making reference to the 19th century debate on the scientific psychology. Friedrich Lange and Ernst Mach gave an important contribution to that debate. Both of them developed the ideas of Gustav Fechner, and thought about a „psychology without soul“, i.e. an investigation that gives up with the old metaphysics of substance in dealing with the mind-body problem. In this paper (...) I shall deal with both Lange and Mach (whose writings has been read by Nietzsche), in order to shed some light on Nietzsche’s rejection of the „I“ in philosophy. (shrink)

In this paper I discuss the role played by Ernst Mach on Nietzsche’s thought. Starting from the contents of his Beiträge zur Analyse der Empfindungen, I’ll show the close similarities between their view on both human knowledge and the scientific world description. In his writing on science Nietzsche shares Mach’s critique to the 19th century mechanism and its metaphysical ground, as much as his way of defining the substantial notions such as matter, ego and free will. Moreover, my investigation will (...) make it clear that Mach cannot be seen as a direct source of Nietzsche’s thought, since the latter wrote many times on the same subjects long before his first reading one of his works. Rather, it is possible to consider the writings of Lange, Spir and Spencer as the first sources of Nietzsche’s views on the main themes Mach dealt with in his work from 1886. (shrink)

In this paper I deal with Nietzsche's theory of knowledge in the context of 19th century epistemology. In particular, I argue that, even though Nietzsche shows the ontological lack of content of truths (both on the theoretic and on the moral plane), he nevertheless leaves the space for a practical use of them, in a way that can be compared with William James' pragmatism. I thus deal with Nietzsche's and James' concept of "truth", and show their relationship with some outcomes (...) of Ernst Mach's epistemology. (shrink)