The objective probability of every physical event is fixed by prior physical events and laws alone. (This thesis is sometimes expressed in terms of explanation: In tracing the causal history of any physical event, one need not advert to any non-physical events or laws. To the extent that there is any explanation available for a physical event, there is a complete explanation available couched entirely in physical vocabulary. We prefer the probability formulation, as it should be acceptable to any physicalist, (...) though some reject the explanation formulation.) (3) Causal Exclusion. (shrink)

Although connectionism is advocated by its proponents as an alternative to the classical computational theory of mind, doubts persist about its _computational_ credentials. Our aim is to dispel these doubts by explaining how connectionist networks compute. We first develop a generic account of computation—no easy task, because computation, like almost every other foundational concept in cognitive science, has resisted canonical definition. We opt for a characterisation that does justice to the explanatory role of computation in cognitive science. Next we examine (...) what might be regarded as the “conventional” account of connectionist computation. We show why this account is inadequate and hence fosters the suspicion that connectionist networks aren’t genuinely computational. Lastly, we turn to the principal task of the paper: the development of a more robust portrait of connectionist computation. The basis of this portrait is an explanation of the representational capacities of connection weights, supported by an analysis of the weight configurations of a series of simulated neural networks. (shrink)

My aim in this paper is to articulate further what may be called an agency theory of self-knowledge. Many theorists have stressed how important agency is to self- knowledge, and much work has been done drawing connections between the two notions.² However, it has not always been clear what _epistemic_ advantage agency gives us in this area and why it does so. I take it as a constraint on an adequate account of how a subject knows her own mental states (...) and acts, that it construe the known mental states and acts realistically and as independent of their self-ascription, and that it deliver genuine epistemic standing to the knower. The main task of the paper will, then, be to explore how our having rational agency with respect to our mental states may be able to secure genuine epistemic warrant for our self-ascriptions of states or acts independent of the ascriptions. This task will be carried out by focussing on the question of what account we should give of our knowledge of what I call our acts of judging. In the remainder of this section, I will do a little to clarify what is meant by that question. Section 2 will attempt to introduce us to elements of the best way to approach the question by considering some alternative strategies. Section 3 is devoted to forming some idea of what _kind_ of warrant we are looking for when considering how agency might give us self-knowledge. Section 4 aims to present a suggestion as to how agency gives us the kind of warrant identified over our acts of judging. Section 5 deals with some objections. (shrink)

Vague predicates, those that exhibit borderline cases, pose a persistent problem for philosophers and logicians. Although they are ubiquitous in natural language, when used in a logical context, vague predicates lead to contradiction. This paper will address a question that is intimately related to this problem. Given their inherent imprecision, why do vague predicates arise in the first place? I discuss a variation of the signaling game where the state space is treated as contiguous, i.e., endowed with a metric that (...) captures a similarity relation over states. This added structure is manifested in payoffs that reward approximate coordination between sender and receiver as well as perfect coordination. I evolve these games using a variation of Herrnstein reinforcement learning that better reflects the generalizing learning strategies real-world actors use in situations where states of the world are similar. In these simulations, signaling can develop very quickly, and the signals are vague in much the way ordinary language predicates are vague—they each exclusively apply to certain items, but for some transition period both signals apply to varying degrees. Moreover, I show that under certain parameter values, in particular when state spaces are large and time is limited, learning generalization of this sort yields strategies with higher payoffs than standard Herrnstein reinforcement learning. These models may then help explain why the phenomenon of vagueness arises in natural language: the learning strategies that allow actors to quickly and effectively develop signaling conventions in contiguous state spaces make it unavoidable. (shrink)

I propose to dissolve the distinction between “rustic” and “urbane” interpretations of Sextus Empiricus’ account of Pyrrhonian assent to appearances. On the traditional picture, the “rustic” takes the skeptic to have no beliefs while the “urbane” takes the skeptic to have some “everyday” beliefs. I examine the distinction in two forms. First, in the original suite of papers by Frede, Burnyeat, and Barnes, I find that aside from a few differences in English terminology choice, the three authors substantially agree on (...) the interpretation of assent to appearances. Second, turning to the revised distinction proposed by Fine, I find that the two supposedly divergent interpretations give us pictures of the Pyrrhonist indistinguishable from each other on the basis of the skeptic’s actions or assent. The distinction dissolved, I propose a unified interpretation that expresses what I find to be the ultimate agreement between the two supposedly different camps. Finally, I turn to the question of the skeptical life and use this unified interpretation to argue that both an everyday life and an unconventional one are equally consistent with Pyrrhonian practice. (shrink)

We are sympathetic with the broad aims of Perruchet & Vinter's “mentalistic” framework. But it is implausible to claim, as they do, that human cognition can be understood without recourse to unconsciously represented information. In our view, this strategy forsakes the only available mechanistic understanding of intelligent behaviour. Our purpose here is to plot a course midway between the classical unconscious and Perruchet &Vinter's own noncomputational associationism.

The Old Testament epigraphs used by Leo Strauss for his study Natural Right and History tend invariably to vex his readers. In the book itself and in other of his writings, Strauss explicitly states that the Old Testament tradition does not know ‘nature’ in the philosophical sense, and hence the concept of ‘natural right’ is unknown or alien to that tradition. Another, more obvious problem they present has been seemingly universally passed over by commentators: neither epigraph tells the reader anything (...) explicitly about right, natural or otherwise. One cannot claim them to contain lessons about right, because such lessons are not directly extractable from the epigraphs as they stand. Here I wish to argue that Strauss's choice of epigraph does two things: first, it points to the fact that Old Testament stories can be given a political reading, or used to illustrate political lessons. In implying this, Strauss is following Machiavelli, who is the most important figure in Natural Right and History. Second, the epigraphs point to the deeply problematic nature of the concept of natural right, primarily the equivocal nature of the term, a difficulty never made explicit by Strauss but the awareness of which permeates his study. (shrink)

Conservative ideology in its moderate form is inspired by opposition to belief in radical political and social change on the ground that it rests on several mistaken assumptions, of which the most important are that human nature is highly malleable; that human will can refashion history in whatever ways human ideals may require; that society is the artificial product of a contract between autonomous individuals; and that evil is an eliminable feature of human existence. The unifying theme of conservative ideology, (...) by contrast, is a defence of limited politics, although different schools of conservatism have theorized the concept of limit in ways that are incompatible and even incoherent. Of these, the four principal schools are the reactionary, the radical, the moderate, and, more recently, the New Right. This chapter examines the degree of coherence achieved by each of these schools of thought. (shrink)

When Demosthenes brought Aeschines to trial on a charge of malfeasance as an ambassador, he made what seems now the astonishing declaration in connection with Aeschines' acting of the part of Creon in Sophocles' Antigone: ⋯στε γ⋯ρ δ⋯που το⋯θ' ὅτι ⋯ν ἅπασι τοῖς δρ⋯μασι τοῖς τραγικοῖς ⋯ξα⋯ρετ⋯ν ⋯στιν ὥσπερ γ⋯ρας τοῖς τριταγωνισ ταῖς τὺ τοὺς τυρ⋯ννους κα⋯ τοὺς τ⋯ σκ⋯πτρ' ἔχοντας εἰσι⋯ναι. Until the last generation this was taken at face value as indicating that of the three actors presenting a (...) tragedy the third was regularly assigned the part of royalty. But that the title rôle in such plays as Sophocles' Oedipus Tyrannus or an important character such as Creon in the Antigone should have been entrusted to the third ranking actor is incredible. How is the discrepancy to be explained? (shrink)

David Hume has described his theory of causation as the ‘chief argument’ of his Treatise of Human Nature. The broad lines of that argument are well known, and need not be detailed here. Hume’s conclusion is that causation is not a ‘power’ in the cause but a ‘felt compulsion’ in the mind—an expectation that a certain event will be followed by a certain other event of the type habitually associated with the first in our experience. Both events are perceptions; the (...) first is an impression, the second a believed idea: and causation is the association of the two. Furthermore, Hume not only expresses his notion of causation in terms of the theory of impressions and ideas; he also argues to it by means o/this theory. (shrink)

DEATH is one of the central themes of existentialist writing. This is to be expected since the focal point of all its reflection is human existence. Existentialism explores the innermost depths of experienced selfhood. Inevitably, the authentic self must face the problem of man’s origin and destiny or, in Heideggerian terms, the beginning and ending of his Being-in-the-world. Death is a profoundly human problem, inseparably bound up with the psychological and ontological structure of the human mode of being or Dasein.