Two classic learning situations are critically reviewed and interpreted from a synergetic point of view: human learning of complex skills, and animal discrimination learning. Both show typical characteristics of nonlinear phase transitions: instability, fluctuations, critical slowing down and reorganisation. Plateaus in the acquisition curves of complex skills can be viewed as phases of arrested progress in which a reorganisation of simple skills is necessary before their integration into complex units is possible. Fluctuations and critical slowing down are expressed in instances (...) of "vicarious trial-and-error," which describe the oscillating behavior of rats at a choice point that is shown only just before discrimination learning is completed. It is concluded that education might pay more attention to the role of individual learning rhythms. (shrink)

Eine systematische Diskussion der Rolle von Dispositionen in den Wissenschaften, mit besonderer Berücksichtigung der folgenden Positionen: (GCP) Mumford, S./Anjum, R., 2011, Getting Causes from Powers, Oxford: Ox- ford University Press. (MP) Marmodoro, A. (Hrsg.), 2010, The Metaphysics of Powers, NY: Routledge. (DC) Handfield, T. (Hrsg.), 2009, Dispositions and Causes. Oxford: Oxford University Press. (DD) Damschen, G./Schnepf, R./Stüber, K.R. (Hrsg.), 2009, Debating Dispo- sitions – Issues in Metaphysics, Epistemology and Philosophy of Mind, Berlin/ NY: DeGruyter. (LDC) Manley, D./Wasserman, R., 2008,,On Linking (...) Dispositions and Con- ditionals‘, Mind 117: 59–84. (NM) Bird, A., 2007, Nature’s Metaphysics: Laws and Properties, Oxford: Ox- ford University Press. (DCP) Kistler, M./Gnassounou, B. (Hrsg.), 2007, Dispositions and Causal Po- wers, NY: Routledge. (shrink)

This paper responds to the contributions by Alexander Bird, Nathan Wildman, David Yates, Jennifer McKitrick, Giacomo Giannini & Matthew Tugby, and Jennifer Wang. I react to their comments on my 2015 book Potentiality: From Dispositions to Modality, and in doing so expands on some of the arguments and ideas of the book.

This is a welcome reprint of a book that continues to grow in importance.

Dispositionalism about modality is the view that metaphysical modality is a matter of the dispositions possessed by actual objects. In a recent paper, David Yates has raised an important worry about the formal adequacy of dispositionalism. This paper responds to Yates’s worry by developing a reply that Yates discusses briefly but dismisses as ad hoc: an appeal to a ’plenitude of powers’ including such powers as the necessarily always manifested power for 2+2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} (...) \begin{document}$$2+2$$\end{document} to be 4. I argue that the reply is not ad hoc at all, by defending the metaphysics of dispositions that should underly it. I then argue, first, that a proper understanding of dispositions’ degrees provides us with an argument for such necessarily always manifested dispositions; second, that all the natural attempts to block that argument can be resisted without being ad hoc; and third, that pragmatic considerations explain our intuitive resistance to the ascription of necessarily always manifested dispositions. Dispositionalism can be formally adequate after all. (shrink)

This paper explores the prospects for dispositional accounts of abilities. According to so-called new dispositionalists, an agent has the ability to Φ iff they have a disposition to Φ when trying to Φ. We show that the new dispositionalism is beset by some problems that also beset its predecessor, the conditional analysis of abilities, and bring up some further problems. We then turn to a different approach, which links abilities not to motivational states but to the notion of success, and (...) consider ways of implementing that approach. Our results suggest that there are principled disanalogies between abilities and disposition which prevent any dispositional account of abilities from succeeding. (shrink)

The author presents and defends three theses: (1) "the first is that it is not profitable for us at present to do moral philosophy; that should be laid aside at any rate until we have an adequate philosophy of psychology." (2) "the second is that the concepts of obligation, And duty... And of what is morally right and wrong, And of the moral sense of 'ought', Ought to be jettisoned if this is psychologically possible...." (3) "the third thesis is that (...) the differences between the well-Known english writers on moral philosophy from sidgwick to the present day are of little importance." (staff). (shrink)

Plato is performing a dialectical thought process in juxtaposing Socrates and the Eleatic Stranger in the Statesman, as well as in other dialogues related by dramatic sequence to the trial of Socrates, which include the Theaetetus, Sophist, Euthyphro, Apology, Crito, and Phaedo. In so doing Plato exhibits a fundamental philosophical tension between Socratic political philosophy---a dialectical political philosophy---on the one hand, and an Eleatic political philosophy---a technical, scientific political philosophy or political science---on the other. Plato provides two aspects of his (...) own thought in order to provide an internal critique of his ideas, to reveal their complexity, and to encourage scrutiny and reexamination of them. ;The goal in providing a dialectic between two very different methods of political philosophy is not to show the ultimate similarity between them, or to demonstrate that Plato changed his mind about the way philosophy ought to be practiced and politics ought to be understood. Nor is the dialectical approach intended to portray the inherent complementarity of the different methods. In the Statesman Plato presents an alternative approach to the study of politics---with Socrates present---ultimately to dramatize the advantages of the Socratic approach by way of contrast. For Plato, the Stranger calls attention to a number of difficulties and potential excesses in Socrates' way of philosophizing. Yet it is only through a thorough recognition of Socrates' limitations and potential excesses that his legacy can be perpetuated in proper fashion. ;Only by observing---and participating in---Plato's elaborate thought experiment can we perpetuate a dialectical political philosophy that is most conducive to human affairs and balances objective and perspectival concerns. Plato's dialogic writings attempt to capture as much as possible the complex character of Socrates in a way that invites further investigation and interpretation. The dialectical approach to philosophy balances theoretical and practical concerns without lapsing into relativism or dogmatism. The conception of inquiry as an ongoing pursuit is central to Platonic political philosophy, and is perhaps Plato's most striking and important inheritance from Socrates, his teacher. (shrink)

This book offers an introduction to the Sophists of fifth-century Athens and a new overall interpretation of their thought. Since Plato first animadverted on their activities, the Sophists have commonly been presented as little better than intellectual mountebanks - a picture which Professor Kerferd forcefully challenges here. Interpreting the evidence with care, he shows them to have been part of an exciting and historically crucial intellectual movement. At the centre of their teaching was a form of relativism, most famously expressed (...) by Protagoras as 'Man is the measure of all things', and which they developed in a wide range of views - on knowledge and argument, virtue, government, society, and the gods. On all these subjects the Sophists did far more than simply provoke Plato to thought. Their contributions were substantial and serious; they inaugurated the debate on many central philosophical questions and decisively shifted the focus of philosophical attention from the cosmos to man. (shrink)

Der »Grundriss Heidegger« versteht sich als eine Einführung zu Martin Heideggers Leben und vor allem als Nachschlagewerk zu seinen Schriften. Diese haben (Stand Frühjahr 2012) einen Umfang von nahezu 27.000 Seiten, verteilt auf die bisher erschienenen 79 Bände der Gesamtausgabe, wozu noch zahlreiche Einzelveröffentlichungen und Briefbände kommen. Der erste Teil, Synopsis, ist der Versuch, über ein Denken umfassend zu orientieren, das sein Autor unter das Motto »Wege, nicht Werke« gestellt hat. In acht Hauptteilen (Sein, Welt und Sein, In-der-Welt-Sein, Kehre zum (...) Sein, Sein und Nichts, Ereignis und Sein, Bauen am Sein, Haus des Seins) soll die Einheit dieses Denkens sichtbar werden, die durchlaufend nummerierten Paragraphen folgen mit kleineren sachlich bedingten Abweichungen dem chronologischen Ablauf. Der zweite Teil, Lemmata, ist ein Heidegger-Lexikon mit 241 Stichworten von »Abendland« bis »Zwischen«. Um diesen Index in überschaubaren Grenzen zu halten, werden verwandte Stichworte gelegentlich in einem Artikel zusammengefasst; zudem ermöglicht eine Fülle von Verweisstellen eine weitergehende Orientierung. Den Stichworten folgen im Allgemeinen Angaben zur Sekundärliteratur. Der dritte Teil, Daten, umfasst drei Abschnitte: eine Übersicht über die wichtigsten Daten von Heideggers Leben und Wirken, Kurzbiographien wichtiger Personen aus Heideggers engerem Umfeld sowie Kurzbeschreibungen zu allen in den Bänden der Gesamtausgabe enthaltenen und einigen in dieser noch nicht erschienenen kleineren Schriften. Der vierte Teil, Appendices, enthält ein Abkürzungsverzeichnis, ein Verzeichnis aller im Buch zitierten Literatur, das Sachregister zum ersten Teil und das Inhaltsverzeichnis des Grundrisses. (shrink)

It is shown that the basic postulate of utilitarianism does not work when we must decide whether a person should be brought into existence. Utilitarianism must be supplemented by further axioms. Those proposed lead to the consequence that as far as the potential child's utility is concerned, it is morally preferable not to produce children at all. This consequence is accepted. It is still recommended when parents? utility is taken into account.

Individual objects have potentials: paper has the potential to burn, an acorn has the potential to turn into a tree, some people have the potential to run a mile in less than four minutes. Barbara Vetter provides a systematic investigation into the metaphysics of such potentials, and an account of metaphysical modality based on them. -/- In contemporary philosophy, potentials have been recognized mostly in the form of so-called dispositions: solubility, fragility, and so on. Vetter takes dispositions as (...) her starting point, but argues for and develops a more comprehensive conception of potentiality. She shows how, with this more comprehensive conception, an account of metaphysical modality can be given that meets three crucial requirements: Extensional correctness: providing the right truth-values for statements of possibility and necessity; formal adequacy: providing the right logic for metaphysical modality; and semantic utility: providing a semantics that links ordinary modal language to the metaphysics of modality. -/- The resulting view of modality is a version of dispositionalism about modality: it takes modality to be a matter of the dispositions of individual objects. This approach has a long philosophical tradition going back to Aristotle, but has been largely neglected in contemporary philosophy. In recent years, it has become a live option again due to the rise of anti-Humean, powers-based metaphysics. The aim of Potentiality is to develop the dispositionalist view in a way that takes account of contemporary developments in metaphysics, logic, and semantics. (shrink)

This book shows that the metaphor of the quintessentially feminine art of weaving in Homer's Odyssey, Aristophanes' Lysistrata, and Plato's Statesman and Phaedo conveys complex and inclusive teachings about human nature and political life that address the concerns of women more effectively than commonly believed.

The under-representation of women on boards is a heavily discussed topic—not only in Germany. Based on critical mass theory and with the help of a hand-collected panel dataset of 151 listed German firms for the years 2000–2005, we explore whether the link between gender diversity and firm performance follows a U-shape. Controlling for reversed causality, we find evidence for gender diversity to at first negatively affect firm performance and—only after a “critical mass” of about 30 % women has been reached—to (...) be associated with higher firm performance than completely male boards. Given our sample firms, the critical mass of 30 % women translates into an absolute number of about three women on the board and hence supports recent studies on a corresponding “magic number” of women in the boardroom. (shrink)

This paper examines how board gender diversity affects corporate risk disclosure. We exploit an exogenous shock on firms’ risk environment created by the United Kingdom’s vote to leave the European Union and analyze related risk disclosure in annual reports of public firms in the UK. Using this unique setting, we mitigate concerns about omitted variables in concurrent studies. The findings suggest that board gender diversity is positively related to corporate risk disclosure. However, our results also indicate that the proportion of (...) female directors needs to reach a critical mass to impact the risk disclosure decision. Moreover, we find lower bid–ask spreads immediately after the referendum date for those firms that disclosed Brexit-related risks in their annual reports prior to the vote. Collectively, our results are consistent with board gender diversity promoting the disclosure of decision-relevant information through improved board group dynamics. (shrink)

Normal propositional modal systems This first chapter has two main aims. One is to give a general account of the propositional modal systems that we shall ...

Dispositions are modal properties. The standard conception of dispositions holds that each disposition is individuated by its stimulus condition(s) and its manifestation(s), and that their modality is best captured by some conditional construction that relates stimulus to manifestation as antecedent to consequent. I propose an alternative conception of dispositions: each disposition is individuated by its manifestation alone, and its modality is closest to that of possibility — a fragile vase, for instance, is one that can break easily. The view is (...) expounded in some detail and defended against the major objections. (shrink)

Abilities are in many ways central to what being an agent means, and they are appealed to in philosophical accounts of a great many different phenomena. It is often assumed that abilities are some kind of dispositional property, but it is rarely made explicit exactly which dispositional properties are our abilities. Two recent debates provide two different answers to that question: the new dispositionalism in the debate about free will, and virtue reliabilism in epistemology. This paper argues that both answers (...) fail as general accounts of abilities, and discusses the ramifications of this result. (shrink)

An examination of verbal hallucinations and thought insertion as examples of "alienated self-consciousness.".

It is a familiar point that many ordinary dispositions are multi-track, that is, not fully and adequately characterisable by a single conditional. In this paper, I argue that both the extent and the implications of this point have been severely underestimated. First, I provide new arguments to show that every disposition whose stimulus condition is a determinable quantity must be infinitely multi-track. Secondly, I argue that this result should incline us to move away from the standard assumption that dispositions are (...) in some way importantly linked to conditionals, as presupposed by the debate about various versions of the ‘conditional analysis’ of dispositions. I introduce an alternative conception of dispositionality, which is motivated by linguistic observations about dispositional adjectives and links dispositions to possibility instead of conditionals. I argue that, because of the multi-track nature of dispositions, the possibility-based conception of dispositions is to be preferred. (shrink)

This book traces the intellectual revolution initiated by Thales in the sixth century BC to its culmination in the metaphysics of Parmenides.

Williamsonian modal epistemology is characterized by two commitments: realism about modality, and anti-exceptionalism about our modal knowledge. Williamson’s own counterfactual-based modal epistemology is the best known implementation of WME, but not the only option that is available. I sketch and defend an alternative implementation which takes our knowledge of metaphysical modality to arise, not from knowledge of counterfactuals, but from our knowledge of ordinary possibility statements of the form ‘x can F’. I defend this view against a criticism indicated in (...) Williamson’s own work, and argue that it is better connected to the semantics of modal language. (shrink)

Abilities, in contrast to mere dispositions, propensities, or tendencies, abilities seem to be features of agents that put the agent herself in control. But what is the distinguishing feature of abilities vis‐à‐vis other kinds of powers? Our aim in this paper is to point, in answer to this question, to a crucial feature of abilities that existing accounts have tended to neglect: their adaptivity. Adaptivity is a feature of how abilities are exercised. The main reason for its relative neglect has (...) been that most extant accounts have focused solely on whether abilities are exercised successfully in certain possible situations and have mostly understood the exercise of an ability in terms of complete successful performance. We begin by pointing out two aspects of abilities with regard to which current accounts seem (at best) incomplete: control and exercise. We then introduce adaptivity as we understand it, and end by putting it to work in developing a fuller understanding of abilities that does better than current accounts. (shrink)

According to essentialism, metaphysical modality is founded in the essences of things, where the essence of a thing is roughly akin to its real definition. According to potentialism (also known as dispositionalism), metaphysical modality is founded in the potentialities of things, where a potentiality is roughly the generalized notion of a disposition. Essentialism and potentialism have much in common, but little has been written about their relation to each other. The aim of this paper is to understand better the relations (...) between essence and potentiality, on the one hand, and between essentialism and potentialism, on the other. It is argued, first, that essence and potentiality are not duals but interestingly linked by a weaker relation dubbed ‘semi-duality’; second, that given this weaker relation, essentialism and potentialism are not natural allies but rather natural competitors; and third, that the semi-duality of essence and potentiality allows the potentialist to respond to an important explanatory challenge by using essentialist resources without thereby committing to essentialism. (shrink)

According to ecological psychology, animals perceive not just the qualities of things in their environment, but their affordances: in James Gibson’s words, ’what things furnish, for good or ill’. I propose a metaphysics for affordances that fits into a contemporary anti-Humean metaphysics of powers or potentialities. The goal is to connect two debates, one in the philosophy of perception and one in metaphysics, that stand to gain much from each other.

Dispositionalists try to provide an account of modality—possibility, necessity, and the counterfactual conditional—in terms of dispositions. But there may be a tension between dispositionalist accounts of possibility on the one hand, and of counterfactuals on the other. Dispositionalists about possibility must hold that there are no impossible dispositions, i.e., dispositions with metaphysically impossible stimulus and/or manifestation conditions; dispositionalist accounts of counterfactuals, if they allow for non-vacuous counterpossibles, require that there are such impossible dispositions. I argue, first, that there are in (...) fact no impossible dispositions; and second, that the dispositionalist can nevertheless acknowledge the non-vacuity of some counterpossibles. The strategy in the second part is one of ‘divide and conquer’ that is not confined to the dispositionalist: it consists in arguing that counterpossibles, when non-vacuous, are read epistemically and are therefore outside the purview of a dispositional account. (shrink)

This paper surveys recent "new actualist" approaches to modality that do without possible worlds and locate modality squarely in the actual world. New actualist theories include essentialism and dispositionalism about modality, each of which can come in different varieties. The commonalities and differences between these views, as well as their shared motivations, are layed out.

The standard Kratzerian analysis of modal auxiliaries, such as ‘may’ and ‘can’, takes them to be univocal and context-sensitive. Our first aim is to argue for an alternative view, on which such expressions are polysemous. Our second aim is to thereby shed light on the distinction between semantic context-sensitivity and polysemy. To achieve these aims, we examine the mechanisms of polysemy and context-sensitivity and provide criteria with which they can be held apart. We apply the criteria to modal auxiliaries and (...) show that the default hypothesis should be that they are polysemous, and not merely context-sensitive. We then respond to arguments against modal ambiguity. Finally, we show why modal polysemy has significant philosophical implications. (shrink)

My aim in this paper is to sketch, with a broad brush and in bare outlines, an approach to modal epistemology that is characterized by three distinctive features. First, the approach is agency-based: it locates the roots of our modal thought and knowledge in our experience of our own agency. Second, the approach is ambitious in that it takes the experience of certain modal properties in agency to be the sole distinctive feature of specifically modal thought and knowledge; everything that (...) we know about modality beyond the experience of agency is a matter of applying standard methods of inquiry such as deduction, induction and abductive methods for choosing between theories. Third, the account holds that modal thought and knowledge is, first and foremost, about modal properties that are sufficiently like those encountered in agency. (shrink)