Dualism about possible worlds says that merely possible worlds aren’t concrete objects, but the actual world is concrete. This view seems to be the natural one for ersatzers about merely possible worlds to take; yet one is hard-pressed to find any defenders of it in contemporary modal metaphysics. The main reason is that Dualism struggles with the issue of how merely possible worlds could have been actual. I explain that there are two different Dualist strategies that can be (...) taken to address the problem. Furthermore, one or other of these strategies should be plausible to anyone who accepts both Existentialism—which tells us that the existence of singular propositions depends on what they directly refer to—and Serious Actualism—which tells us that things must exist in order to instantiate properties. Though it has long been ignored, Dualism is a live option. (shrink)

Most people believe it would be wrong to bring a child into the world if in all likelihood its life would be miserable. But if pain and suffering count against bringing someone into existence, why do pleasure and happiness not count in favour of bringing them into existence? Recently in this journal Michael Tooley has re‐affirmed his rights‐based explanation for this asymmetry. In a nutshell: to create an individual whose life is not worth living would be to wrong that individual (...) – to create an obligation that cannot be fulfilled – but it is not possible to wrong an individual who is not brought into existence. In the same issue of this journal, in an article covering a range of arguments for and against the claim that it would be good for additional people to exist, Stuart Rachels objects to Tooley’s account on the ground that it has counterintuitive implications. His most interesting argument involves a Parfit‐style counterexample: a woman is about to take a fertility pill that will result in twins, one of whom will be healthy and the other of whom will not. Does it make a difference, morally speaking, if the woman knows which of the twins will be healthy and which will not? In this paper I argue that both Rachels’ criticism of Tooley’s rights‐based account, and Tooley’s own defence of it, are unsuccessful due to their failure to come to grips with the semantics of names for possible individuals. Both of them implicitly assume that it is possible to have a potential person in mind, in a way that misleads them about the fairness of actions that involve possible people. The significance of this extends to other areas such as abortion, population policy, and embryo experimentation, where examples involving possible people are common. (shrink)

Actualists who believe in possible worlds typically regard them as "abstract" objects of some special sort. For example, Alvin Plantinga takes worlds to be maximal possible states-of-affairs, all of which "exist", as actualism requires, but only one of which "obtains". Views like Plantinga's run into difficulty in the interpretation of statements of "iterated" modality, statements about what is "possible" for individuals that "could" exist but that do not actually exist. These statements seem to require the existence of "singular" states-Of-affairs (...) that have nonactual individuals as constituents, a requirement that is incompatible with actualism. One can try to avoid the troublesome singular states-of-affairs by introducing "unexemplified individual essences" and maintaining that these are the true constituents of the required states-of-affairs, rather than the nonactual possibles themselves. However, serious arguments are raised against this employment of individual essences. (shrink)

It is widely agreed that properties play causal roles: they capture the causal powers of things. But do properties have their causal roles essentially? David Lewis did not think so. He adhered to the doctrine of quidditism, namely the doctrine that the identity of properties is primitive and that they can trade their causal roles. Quidditism is controversial. But Lewis did not see why he should want to reject it. He knew that he could avoid quidditism on the cheap by (...) treating individuals and properties alike in rejecting transworld multilocation of properties and endorsing a counterpart theory for properties. But he did not see why he should want to do so. In this article, I argue that Lewis should have wanted to endorse a counterpart theory for properties in order to reject quidditism. My argument concerns resemblance relations among properties. Another constitutive role of properties is that they capture objective resemblances between their instances. The premises of my argument are intuitive claims about resemblances among some properties that Lewis held on Humean grounds. (shrink)

Recently it has been claimed that no extension of quantum theory can have improved predictive power, the statement following, according to the authors, from the assumptions of free will and of the correctness of quantum predictions concerning the correlations of measurement outcomes. Here we prove that the argument is basically flawed by an inappropriate use of the assumption of free will. In particular, among other implications, the claim, if correct, would imply that Bohmian Mechanics is incompatible with free will. This (...) statement, appearing in the paper, derives from the unjustified identification of free will with the no-signaling constraint and of a purely formal and not physical use of such a constraint. (shrink)

Fictionalism about possible worlds is the view that talk about worlds in the analysis of modality is to be construed as ontologically innocent discourse about the content of a fiction. Versions of the view have been defended by D M Armstrong (in "A Combinatorial Theory of Possibility") and by myself (in "Modal Fictionalism', "Mind" 99, July 1990). The present note argues that fictionalist accounts of modality (both Armstrong's version and my own) fail to serve the fictionalists (...) ontological purposes because they imply that as a matter of necessity there exist many worlds. (shrink)

I motivate and develop a view, found in John Duns Scotus, concerning God's explanatory role in the possibility of possible natures. A possible nature is a nature which can be instanced. The view is that possible natures have their possibility due to the coherence of their simple parts, but the simples which make up natures are themselves ex nihilo productions of divine intellect.

Various writers have proposed that the notion of a possible world is a functional concept, yet very little has been done to develop that proposal. This paper explores a particular functionalist account of possible worlds, according to which pluralities of possible worlds are the bases for structures which provide occupants for the roles which analyse our ordinary modal concepts. It argues that the resulting position meets some of the stringent constraints which philosophers have placed upon accounts of possible worlds, while (...) also trivializing the question what possible worlds are. The paper then discusses a range of problems facing the functionalist position. (shrink)

In this work, no denying the role, or even more so, the value of rational thinking, it is assumed that it is not the only effective tool for man to achieve his valuable goals. It is conjectured here that sometimes irrational thinking is an equally good (and sometimes even better than rational thinking) means of achieving them. In the light of these assumptions, the goal of my work is to indicate the benefits that may be the result of irrational thinking (...) in the colloquial (i.e. unscientific) domain of everyday human practice. The given examples of irrational thinking come from research in the field of cognitive and social psychology and behavioural economics. Their results prove that irrational behaviours (including thinking) are neither accidental nor senseless, and on the contrary systematic and easy to predict, they constitute important arguments for considering the phenomenon of irrational thinking. I also discuss this issue although only to a limited extent. (shrink)

The standard view about counterfactuals is that a counterfactual (A > C) is true if and only if the A-worlds most similar to the actual world @ are C-worlds. I argue that the worlds conception of counterfactuals is wrong. I assume that counterfactuals have non-trivial truth-values under physical determinism. I show that the possible-worlds approach cannot explain many embeddings of the form (P > (Q > R)), which intuitively are perfectly assertable, and which must be true if the contingent (...) falsity of (Q > R) is to be explained. If (P > (Q > R)) has a backtracking reading then the contingent facts that (Q > R) needs to be true in the closest P-worlds are absent. If (P > (Q > R)) has a forwardtracking reading, then the laws required by (Q > R) to be true in the closest P-worlds will be absent, because they are violated in those worlds. Solutions like lossy laws or denial of embedding won't work. The only approach to counterfactuals that explains the embedding is a pragmatic metalinguistic approach in which the whole idea that counterfactuals are about a modal reality, be it abstract or concrete, is given up. (shrink)

Modal functionalism is the view that talk about possible worlds should be construed as talk about fictional objects. The version of modal fictionalism originally presented by Gideon Rosen adopted a simple prefixing strategy for fictionalising possible worlds analyses of modal propositions. However, Stuart Brock and Rosen himself in a later article have independently advanced an objection that shows that the prefixing strategy cannot serve fictionalist purposes. In this paper we defend fictionalism about possible worlds by showing that (...) there are other strategies besides the prefixing strategy for fictionalising talk about possible worlds, and that these strategies are proof against the objection advanced by Brock and Rosen. (shrink)

We argue that Armstrong's Combinatorialism allows for the possibility of nothing by giving a Combinatorial account of the empty world and show that such an account is consistent with the ontological and conceptual aims of the theory. We then suggest that the Combinatorialist should allow for this possibility given some methodological considerations. Consequently, rather than being 'spoils for the victor', as Armstrong maintains, deciding whether there might have been nothing helps to determine which metaphysics of modality is (...) to be preferred. (shrink)

In his recently published paper, ‘The Nature of Possibility,’ David Armstrong presents an account of possibility which, he correctly claims, is partly an elaboration of the early Wittgenstein's. Both are combinatorialists. That is to say, both hold that there is a fixed ontology of individuals, properties and relations whose combinations determine the range of all possible states of affairs, and therewith the range of all those totalities of states of affairs which they call possible worlds.But Armstrong's account, I (...) believe, is fatally flawed in ways that Wittgenstein's isn't. And this, I shall argue, is mainly because Armstrong is both an actualist, whose fixed ontology is one of actual individuals, properties and relations, and a reductionist, who tries to reduce the notion of possibility to that of ߢallߣ their combinations. Armstrong seems to think that Wittgenstein at least shares his actualism, and perhaps even his reductionism. (shrink)

O objetivo deste artigo é ser uma introdução aos diversos tipos de possibilidades e mostrar o caminho que a discussão sobre a existência de possibilidades não-atuais deve seguir a partir da aceitação do determinismo. E essa discussão é relevante porque sua resposta tem bastante infl uência em nossos pensamentos e lógicas sobre as modalidades da necessidade e da possibilidade. Cumprimos tal objetivo através de um diálogo a respeito das possibilidades. Este formato de texto tem a vantagem de ser mais pedagógico (...) do que os ensaios em terceira pessoa, pois insere o problema fi losófi co das possibilidades em uma situação real particular sem que a generalidade do assunto e dos argumentos seja perdida. (shrink)

Frank Jackson has argued that only if we have a priori knowledge of the extension-fixers for many of our terms can we vindicate the methodological practice of relying on intuitions to decide between philosophical theories. While there has been much discussion of Jackson’s claim that we have such knowledge, there has been comparatively little discussion of this most powerful argument for that claim. Here I defend an alternative explanation of our intuitions about possible cases, one that does not rely (...) on a priori extension-fixers. This alternative explanation provides a vindication of our reliance on intuitions, while blocking Jackson’s abductive argument for a priori semantic knowledge. In brief, I argue that we should regard our armchair intuitions as providing an important, a priori source of evidence for hypotheses about the contents of our implicit referential policies with regard to our terms. But all such hypotheses have a potential falsifier that is only discoverable empirically. In other words, gold-standard evidence for such hypotheses is always empirical. (shrink)

At the outset of his instructive and thought-provoking paper, ‘The Nature of Possibility,’ Professor David Armstrong gives a succinct description, in itself almost complete, of his ‘combinatorial theory’ of possibility. He says: ‘Such a view traces the very idea of possibility to the idea of the combinations - allthe combinations which respect certain simple form- of given, actual elements’. We can perhaps start a bit further back than this. In explaining the idea of a ‘possible world,’ some (...) philosophers begin with the idea of ‘things being a certain way’ or ‘the way things are.’ From this idea a leap is made to ‘things might have been a certain other way’ or ‘ways things could have been.’ And here we already have possible worlds, or so some philosophers assure us: David Lewis, for example, says his talk of possible worlds is nothing but a ‘permissible paraphrase’ of this familiar and innocent-sounding locution, ‘ways things could have been.'. (shrink)

This note is a reply to margery bedford naylor's "a note on david lewis's realism about possible worlds" . naylor asks why, if we accept david lewis's argument for real possible worlds , we should not accept an analogous argument for impossible worlds. i argue that the latter argument is invalid on the modal realist account of possibility and thus has no force for an adherent of lewis.

In my article I reconstruct the main threads of Robert Stalnaker’s book Our Knowledge of the Internal World, which focuses on the problem of our epistemic relation to our experience and the relation between experience and knowledge. First, the book proposes an interesting view of externalism, which combines classical externalist claims with a contextualist approach to content ascriptions. The approach accommodates some important internalist intuitions by showing how content ascriptions can be sensitive to the perspective from which a subject perceives (...) the world. Second, Stalnaker proposes a theory of selflocating and phenomenal knowledge, which should be understood in terms of differentiating between real possibilities. The puzzling upshot of this elegant solution is that it commits one to the existence of possibilities accessible only from the first-person perspective. Finally, Stalnaker presents an argument which shows that our knowledge about our phenomenal experience is no more direct than the knowledge about external objects. Stalnaker’s claim that by merely having an experience we don’t learn any new information seems, however, too strict in light of his contextualist approach to content ascriptions. (shrink)

In this study, we ask whether consensus testimony affects children’s judgments of the possibility of improbable and impossible events. Fifty-six U.S. and Chinese 8-year-olds made possibility judgments before and after hearing three speakers affirm or deny the possibility of improbable and impossible events. Results indicated that whereas both U.S. and Chinese children altered their judgments in the direction of the consensus testimony, this effect was stronger for Chinese children. U.S. children were particularly receptive to consensus for improbable (...) events and when the consensus provided correct information, whereas Chinese children were similarly willing to change their judgment regardless of event type and the validity of the testimony. We propose that the extent of the influence of testimony on possibility judgments varies based on cultural setting. Our findings have potential applications for domains that require evaluation of counterintuitive claims, like religious and scientific education. (shrink)

In this paper non-normal worlds semantics is presented as a basic, general, and unifying approach to epistemic logic. The semantical framework of non-normal worlds is compared to the model theories of several logics for knowledge and belief that were recently developed in Artificial Intelligence (AI). It is shown that every model for implicit and explicit belief (Levesque), for awareness, general awareness, and local reasoning (Fagin and Halpern), and for awareness and principles (van der Hoek and Meyer) induces a non-normal worlds (...) model validating precisely the same formulas (of the language in question). (shrink)

In explaining the notion of a fundamental property or relation, metaphysicians will often draw an analogy with languages. The fundamental properties and relations stand to reality as the primitive predicates and relations stand to a language: the smallest set of vocabulary God would need in order to write the “book of the world.” This paper attempts to make good on this metaphor. To that end, a modality is introduced that, put informally, stands to propositions as logical truth stands to sentences. (...) The resulting theory, formulated in higher-order logic, also vindicates the Humean idea that fundamental properties and relations are freely recombinable and a variant of the structural idea that propositions can be decomposed into their fundamental constituents via logical operations. Indeed, it is seen that, although these ideas are seemingly distinct, they are not independent, and fall out of a natural and general theory about the granularity of reality. (shrink)

Much of the appeal of Armstrong’s combinatorial theory of possibility depends on the theory’s principle of recombination. Despite its centrality, the principle has received little attention in the critical literature on combinatorialism. In this paper, I first set out to discuss how to exactly formulate the principle; then, I show that some notable criticisms of combinatorialism are in fact criticisms to the principle of recombination that allegedly sustains the theory. I focus in particular on Sider’s ‘trickle down’ (...) objection concerning the recombination of mereologically complex wholes and on the objection that combinatorialism cannot account for so-called alien possibilities. The combinatorialist – I contend – can rebut both objections by fine-tuning the principle of recombination. (shrink)

The object of this paper is to argue once again for the combinatorial account of possibility defended in earlier work. But there I failed fully to realise the dialectical advantages that accrue once one begins by assuming the hypothesis of logical atomism, the hypothesis that postulates simple particulars and simple universals at the bottom of the world. Logical atomism is, I incline to think, no better than ‘speculative cosmology’ as opposed to ‘analytic ontology’, to use Donald Williams’ terminology. It (...) is, however, not an implausible hypothesis given the current state of quantum physics. More important for our purposes here, the strictly combinatorial theory that flows rather naturally from the atomist metaphysics shows some promise of continuing to hold in a world that is not an atomist world. (shrink)

We investigated whether (a) people positively reevaluate the characters of recently dead others and (b) supernatural primes concerning an ambient dead agent serve to curb selfish intentions. In Study 1, participants made trait attributions to three strangers depicted in photographs; one week later, they returned to do the same but were informed that one of the strangers had died over the weekend. Participants rated the decedent target more favorably after learning of his death whereas ratings for the control targets remained (...) unchanged between sessions. This effect was especially pronounced for traits dealing with the decedent’s prosocial tendencies (e.g., ethical, kind). In Study 2, a content analysis of obituaries revealed a similar emphasis on decedents’ prosocial attributes over other personality dimensions (e.g., achievement-relatedness, social skills). Finally, in Study 3, participants who were told of an alleged ghost in the laboratory were less likely to cheat on a competitive task than those who did not receive this supernatural prime. The findings are interpreted as evidence suggestive of adaptive design. (shrink)

This essay challenges the widely accepted principle that a person is morally responsible for what he has done only if he could have done otherwise. The author considers situations in which there are sufficient conditions for a certain choice or action to be performed by someone, So that it is impossible for the person to choose or to do otherwise, But in which these conditions do not in any way bring it about that the person chooses or acts as (...) he does. In such situations the person may well be morally responsible for what he chooses or does despite his inability to choose or to do otherwise. Finally the author considers certain suggestions for revising the principle he rejects or for replacing it with a principle of an altogether different kind. (shrink)

Three big philosophical problems about consciousness are: Why does it exist? How do we explain and understand it? How can we explain brain-consciousness correlations? If functionalism were true, all three problems would be solved. But it is false, and that means all three problems remain unsolved (in that there is no other obvious candidate for a solution). Here, it is argued that the first problem cannot have a solution; this is inherent in the nature of explanation. The second problem (...) is solved by recognizing that (a) there is an explanation as to why science cannot explain consciousness, and (b) consciousness can be explained by a different kind of explanation, empathic or “personalistic” explanation, compatible with, but not reducible to, scientific explanation. The third problem is solved by exploiting David Chalmers“principle of structural coherence”, and involves postulating that sensations experienced by us–visual, auditory, tactile, and so on–amount to minute scattered regions in a vast, multi dimensional “space” of all possible sensations, which vary smoothly, and in a linear way, throughout the space. There is also the space of all possible sentient brain processes. There is just one, unique one-one mapping between these two spaces that preserves continuity and linearity. It is this which provides the explanation as to why brain processes and sensations are correlated as they are. I consider objections to this unique-matching theory, and consider how the theory might be empirically confirmed. (shrink)

The possibility of empirical test is discussed with respect to three issues: (1) What is the ontological relationship between consciousness and the brain/physical world? (2) What physical characteristics are associated with the mind/brain interface? (3) Can consciousness act on the brain independently of any brain process?

Essay on philosophical problems with police sting operations and the legal doctrine of entrapment.

RESUMEN Se argumentará que, para expandir las capacidades de todos, hay que promover que los indivíduos, partiendo de su reconocimiento mutuo, auto contraigan sus elecciones para acomodarse y promover las libertades de otros y así lograr sus propios objetivos. Esta auto contracción no restringe la libertad, sino que la posibilita. Se partirá del diálogo entre las distintas concepciones de Libertad del Enfoque de Capacidades y Libertad Social, de Honneth. Se planteará que la Libertad consistirá en poder moverse entre sus distintas (...) concepciones, respondiendo a las distintas prácticas sociales de reconocimiento en las que se desarrolla. ABSTRACT I will argue that, to expand the capabilitites of everybody, we must promote that the individuals, starting from their mutual recognition, self-contract their elections to accommodate and promote the liberties of others and achieving their own objectives by these means. This self-contraction is not a freedom restriction, but it makes possible. I will start from the dialog between the different Honneth's conceptions of the Freedom from the Capability Approach and the Social Freedom. I will propose that the Freedom consists in the flow between their different conceptions, responding to the different social practices of recognition in which they develop. (shrink)

Igor Douven has offered an original reconstruction and defence of Putnam's model-theoretic argument against metaphysical realism. Douven's construal has notable exegetical virtues, since it makes sense of some assumptions in Putnam's argument which his opponents have considered question-begging or puzzling. In this article I provide an indirect defence of metaphysical realism, by showing why this new version of the anti-realist argument should also be rejected. The main problems in the Douven-Putnam argument come from ascribing to the realist a distorted view (...) of correspondence truth. The view entails that when no feature selects just one of all the possible interpretations of language the existence of an interpretation suffices to make true a theory. The sensible realist is not committed to this extreme conception of correspondence truth. /// Igor Douven ha presentado y defendido una reconstructión del argumento teórico-modelista de Putnam contra el realismo metafísico. Esta versión tiene ciertas virtudes exegéticas, pues hace inteligible algunos presu- puestos putnamianos que sus críticos han considerado injustificados o sorprendentes. En este artículo proporciono una defensa indirecta del realismo metafisico, mostrando por qué debe también rechazarse el argumento antirrealista bajo esta nueva forma. Los problemas principales del argumento Douven-Putnam proceden de atribuir al realista una concepción distorsionada de la idea de verdad como correspondencia. Conforme a esa concepción, la ausencia de factores que seleccionen una única interpretación del lenguaje de entre las muchas posibles conlleva que la existencia de alguna interpretación ya es suficiente para hacer verdadera a una teoría que sea consistente. El realista sensato no está obligado a aceptar esa tesis. (shrink)

Many contemporary philosophers accept Hume's Dictum, according to which there are no metaphysically necessary connections between distinct, intrinsically typed entities. Tacit in Lewis 's work is a potential motivation for HD, according to which one should accept HD as presupposed by the best account of the range of metaphysical possibilities---namely, a combinatorial account, applied to spatiotemporal fundamentalia. Here I elucidate and assess this Ludovician motivation for HD. After refining HD and surveying its key, recurrent role in Lewis ’s work, I (...) present Lewis ’s appeal to HD as providing a broadly axiomatic generating basis for the space of metaphysical modality, and canvas the prima facie advantages of the resulting combinatorial principle---HD ---as being principled, extensionally adequate and modally reductive. Most criticisms of Lewis 's combinatorialism have targeted seeming ways in which the theory overgenerates the desired space; I rather argue that HD seriously undergenerates the desired space in three different ways. For each way I argue that available means of overcoming the undergeneration either fail to close the gap, undermine the claim that HD is a principled generator of metaphysical modal space, undermine the reductive status of Lewis 's combinatorialism, or call into question the truth of HD. (shrink)

Free will is widely thought to require (i) the possibility of acting otherwise and (ii) the intentional endorsement of one’s actions (“indeterministic picking is not enough”). According to (i), a necessary condition for free will is agential-level indeterminism: at some points in time, an agent’s prior history admits more than one possible continuation. According to (ii), however, a free action must be intentionally endorsed, and indeterminism may threaten freedom: if several alternative actions could each have been actualized, then none (...) of them is necessitated by the agent’s prior history, and the actual action seems nothing more than the result of indeterministic picking. We argue that this tension is only apparent. We distinguish between actions an agent can possibly do and actions he or she can do with endorsement. One can consistently say that someone who makes a choice has several alternative possibilities, and yet that, far from merely indeterministically picking an action, the agent chooses one he or she endorses. An implication is that although free will can consistently require (i) and (ii), it cannot generally require the possibility of acting otherwise with endorsement. (shrink)

The notion of globalization is used in different contexts and in different meanings; the notion mixes fact and fiction – existent and non-existent. The notion of globalization refers to, for example, economic, political and cultural processes which exceed nation-state borders. There is no philosophical, i.e. conceptual foundation of globalization. Western philosophical metanarratives are interpreted locally; there is no global interpretation of the metanarratives. Etymologically, ‘understanding’ means standing between differences, for example, between fact and fiction. Logic of expertise is logic of (...) standing between hopes and reality – between non-existent and existent. The logic of expertise is a general theory of realizing. As a truly general theory, the logic of expertise is boundary-crossing-global. Therefore, logic of expertise formulates a foundation of a philosophy of globalization. (shrink)

Therapeutic practice with stem cells even if not yet realistic has open a cautious optimism among scientists. The mechanism controlling cell differentiation into cell types are not known in details yet. Exists real danger to influence wrongly the public opinion.