Mandarin speakers, like most other language speakers around the world, use spatial terms to talk about time. However, the direction of their mental temporal representation along the front-back axis remains controversial because they use the spatial term “front” to refer to both earlier times and the future. Although the linguistic distinction between time- and ego-reference-point spatiotemporal metaphors in Mandarin suggests a promising clarification of the above controversy, there is little empirical evidence verifying this distinction. In this study, Mandarin (...) speakers’ time- and ego-reference-point temporal representations on three axes were separately examined through two tasks. In a time-reference-point task, Mandarin speakers judged whether the time point of the second picture was earlier or later than the time point of the first picture, while in an ego-reference-point task, they judged whether an event or phase had happened in the past or would happen in the future. The results indicate that Mandarin speakers construe an earlier-times-in-front-of-later-times temporal sequence and adopt the front-to-the-future orientation. (shrink)

We agree with Ainslie's general approach to intertemporal choices and self-control. However, we argue that a concept of “will” is superfluous in explaining tradeoffs between SS (smaller and sooner) and LL (larger and later) rewards in a framework of temporal goal setting and goal aggregation. We provide an alternative framework of reference point-dependent tradeoffs between SS and LL options.

Imagine that only the state can meet the need for housing but decides not to do so. Unsurprisingly, participants in a vignette experiment deem this scenario unjust. Hence, justice ratings increase when the living situation improves. To a lesser extent, this also holds beyond the need threshold, understood as the minimum amount necessary for a decent life. Surprisingly, however, the justice evaluation function is highly convex below this point. The resulting S-shaped curve is akin to the value function in (...) prospect theory, with the need threshold providing the point of reference and inflection. A control treatment without needs-information supports this interpretation. Needs-information furthermore compresses the perceived injustice of arbitrary inequality. As in prospect theory, such reference dependency suggests biases in judgment and decision making. A consequence may be that the lot of the poorest in society does not receive the attention it would otherwise get. (shrink)

In many decision scenarios, one has to choose an element from a set S given some reference point e. For the case where S is a subset of a Euclidean space, we axiomatize the choice method that selects the point in S that is closest to e. © 1999 Elsevier Science B.V. All rights reserved.

This paper examines the importance of aspirations as reference points in a multi-period decision-making context. After stating their personal aspiration level, 172 individuals made six sequential decisions among risky prospects as part of a choice experiment. The results show that individuals make different risky-choices in a multi-period compared to a single-period setting. In particular, individuals’ aspiration level is their main reference point during the early stages of decision-making, while their starting status (wealth level at the start of (...) the experiment) becomes the central reference point during the later stages of their multi-period decision-making. (shrink)

In this paper I discuss the recent attempt of Axel Honneth of establishing a robust notion of progress through reference to recognitive structures. I claim that two strategies can be found in his writings for founding such a claim. On the one hand he tries to found the notion of progress on how differentiated the recognitive structures are. On the other hand he tries to found it on certain empirically revealed anthropological and psychological constants. I argue that both strategies (...) fail. The differentiation-strategy is too open, the psychological strategy is too narrow.I discuss in what sense Honneth’s reflections on the importance of recognitive structures still may be of value in critical discussions. Even though it may be granted that a certain notion of progress is inevitable in critical discussions, it does not follow that it has to be a robust notion. I suggest that recognitive structures may serve as a universal reference point that can be used to locate disagreement (recognitive structures are always at play), rather than a robust universal starting point that can be used solve disagreement (it is not given that we agree upon which recognitive structures should be furthered). (shrink)

In this paper, we study overconfidence and goal-setting in academic performance, with and without monetary incentives. Students enrolled in a microeconomics course were offered the possibility of setting their own target grade before taking part in the final exam. They were also asked to guess their grade immediately after they had taken the exam (“post-diction”). In general, students overestimated their performance, both at the goal-setting and at the post-diction stages. Controlling for several sources of this bias (cognitive abilities, academic record (...) and self-reported academic confidence), we find that the use of monetary rewards mitigates the overestimation of potential achievements and eliminates overestimation of actual achievements through the improvement of actual performance. Our results suggest that monetary incentives do not cause subjects to put more effort into correct guesses but make them put more effort into academic performance. Using students’ academic records to measure overall skill, we find a strong Dunning–Kruger bias which is intensified in the presence of monetary rewards. (shrink)

In this essay I attempt a philosophical analysis of the Chinese Buddhist thought of linguistic reference to shed light on how the Buddhist understands the way language refers to an ineffable reality. For this purpose, the essay proceeds in two directions: an enquiry into the linguistic thoughts of Sengzhao (374-414 CE) and Jizang (549-623 CE), two leading Chinese Madhyamika thinkers, and an analysis of the Buddhist simile of a moon-pointing finger. The two approaches respectively constitute the horizontal and vertical (...) axes of this essay. The simile of a moon-pointing finger originated in Indian Buddhism and later received much attention in Chinese Buddhism. In light of the Chinese Buddhist interpretations of the simile, I set forth six theses to make explicit the philosophic implications there involved. They are: (1) words in no way correspond with the ineffable Real and cannot say or properly express the Real; (2) words can point toward the Real by means of the forms meant or properly expressed by them; (3) the forms are plainly different from the Real and so are to be negated; (4) one who takes the forms for the Real not only misunderstands the Real but is also ignorant of the function of language; (5) the forgetting of words and their forms can dissolve the entanglement of language and thought and even lead to the intuition of the Real; (6) the intuition of the Real depends upon extra-linguistic factors as well as language. In elaborating the theses, I resort to passages in Sengzhao’s and Jizang’s works to disclose their linguistic thoughts in relation to the theses. A main concern here is to show how one can speak the unspeakable, how one can refer to an ineffable reality without committing self-contradiction. This is done in relation to their views, the theses as well as a free interpretive analysis. I construe the notion of indication as involving the imposition-cum-negation method and argue that one can use words to indicate the ineffable without at the same time describing it. The ineffable is indescribable, but it can be intimated through indication. Meanwhile, I also discuss Zhuangzi’s notion of word-forgetting as it plays a role in the simile and in Jizang’s philosophy of language. One of the purposes of this essay is to show that while valuing the therapeutic and evocative functions of religious language, Chinese Buddhist thinkers also understand the language indicatively. Without taking note of the indicative function of religious language, one cannot form an adequate picture of the Chinese Buddhist -- especially, the Chinese Madhyamaka -- philosophy of language. (shrink)

The authors demonstrate that ethical judgments can be biased when previous judgments serve as a point of reference against which a current situation is judged. Scenarios describing ethical or unethical sales practices were used in an experiment to prime subjects who subsequently rated the ethics of an ethically ambiguous target scenario. The target tended to be rated as more ethical by subjects primed with unethical scenarios, and less ethical by subjects primed with ethical scenarios. This "contrast effect," however, (...) is contingent upon individual differences. Specifically, subjects with high (versus low) needs for cognition are more likely to process and use the information presented in the priming scenarios as a point of reference against which to judge the target situation, and hence more prone to the contrastive bias. Implications for avoiding unintentional moral relativism in business decision-making are discussed. (shrink)

83. It should now be apparent that the familiar problems of reference and modality can be satisfactorily resolved without either abandoning substitutivity of identity in modal contexts or invoking an intensional ontology. It might be argued, however, that the suggested resolution avoids invoking an intensional ontology only because the modal predicates, e.g. Nec and Believes, are left unanalysed. This may well be true but it should be appreciated that the analysis of modal predicates is an issue which is independent (...) of both the problem of reference in modal contexts and the problem of the logical structure of propositions containing such contexts. These problems can be settled, as we have seen, without also settling how the modal predicates are to be analysed. Hence, if an intensional ontology is in the end required, it is required to analyse the modal predicates, not to solve the problems of reference and logical structure. This, we suggest, is an interesting and perhaps unexpected result. (shrink)

Slides for the first tutorial on Gödel's incompleteness theorems, held at UniLog 5 Summer School, Istanbul, June 24, 2015.

En este escrito se presentan algunos desarrollos de la teoría política de John Rawls ahondando en aquellas categorías que permitan contrastar aspectos de los planteamientos rawlsianos con spectos del pensamiento utilitarista clásico. El propósito es discernir qué tan grande es la deuda que tienen pensadores contemporáneos como Rawls con autores clásicos del siglo XIX tales como Bentham y Mill.

We clarify the respective roles fixed points, diagonalization, and self- reference play in proofs of Gödel’s first incompleteness theorem.

Grounding refers to expressions that establish a connection between the ground and the content evoked by a nominal or finite clause. In this paper we report on two grammatical implementations of nominal grounding in Argentine Sign Language: pointing and placing. For pointing constructions, we also examine distal-proximal pointing and directive force. We introduce the concept of placing, in which a sign is produced at a specific meaningful location in space. Two types of placing are discussed: Placing-for-Creating, in which a new (...) meaningful location is created, and Placing-by-Recruiting, which recruits an existing meaningful location. We suggest that our analysis of pointing and placing provides an account of nominal grounding unified by general cognitive principles as described within the theory of Cognitive Grammar. Pointing is known to occur in all signed languages studied to date. Although previously undocumented, we suggest that placing is also common to many, perhaps all, signed languages. (shrink)

Das ethische Prinzip des Respekts vor der Autonomie des Patienten/Probanden hat in der modernen Medizin mittlerweile weltweit Bedeutung erlangt. Die Betonung der Autonomie des Patienten und Probanden in allen in der letzten Zeit verabschiedeten internationalen Deklarationen gibt dieser Tendenz unmissverständlich Ausdruck. Doch wenngleich diese Entwicklung unstrittig positiv ist, wirft sie dennoch eine Reihe von Fragen auf, die mit der Kodifizierung, Interpretation, Reichweite und Anwendung dieses universalen Prinzips verbunden sind. Die Antworten auf diese Fragen entscheiden darüber, ob Autonomie als hilfreiches, emanzipatorisches (...) oder als überforderndes, gar hegemoniales Prinzip begriffen wird. Diese normativen Probleme werden anhand von Beispielen aus der globalen Medizinethik verdeutlicht. Was in modernen Gesellschaften als Autonomie bezeichnet und für die Praxis fruchtbar gemacht wird, ist als ein soziales Konstrukt zu verstehen, nicht im Sinne einer Schimäre, sondern im Sinne einer soziokulturellen Leistung, die auf komplexen, historisch gewachsenen und kulturell geprägten Interaktionen von Gesellschaften, Institutionen und Individuen beruht. (shrink)

Das ethische Prinzip des Respekts vor der Autonomie des Patienten/Probanden hat in der modernen Medizin mittlerweile weltweit Bedeutung erlangt. Die Betonung der Autonomie des Patienten und Probanden in allen in der letzten Zeit verabschiedeten internationalen Deklarationen gibt dieser Tendenz unmissverständlich Ausdruck. Doch wenngleich diese Entwicklung unstrittig positiv ist, wirft sie dennoch eine Reihe von Fragen auf, die mit der Kodifizierung, Interpretation, Reichweite und Anwendung dieses universalen Prinzips verbunden sind. Die Antworten auf diese Fragen entscheiden darüber, ob Autonomie als hilfreiches, emanzipatorisches (...) oder als überforderndes, gar hegemoniales Prinzip begriffen wird. Diese normativen Probleme werden anhand von Beispielen aus der globalen Medizinethik verdeutlicht. Was in modernen Gesellschaften als Autonomie bezeichnet und für die Praxis fruchtbar gemacht wird, ist als ein soziales Konstrukt zu verstehen, nicht im Sinne einer Schimäre, sondern im Sinne einer soziokulturellen Leistung, die auf komplexen, historisch gewachsenen und kulturell geprägten Interaktionen von Gesellschaften, Institutionen und Individuen beruht. (shrink)

ABSTRACTIn his discussion of David Hume and historical distance, Mark Salber Phillips points out that in the process of distance‐creation there is a distinction between something occurring “within the text” and “outside the text.” In this paper I draw on this distinction and introduce a semantic mechanism that allows a certain distance to be designed within a historical text. This mechanism is highlighted in a view of reference that sees it as indirect . According to the indirect reference (...) view, meaning opens up a space for what might be called historical distance. However, this is not to say that everything with regard to the immediacy and remoteness of this historical distance is analyzable solely in terms of what is happening at the level of the text. In fact, I argue that distance‐effects can be understood only if we also take into account contexts of the writing and reading of history. The semantics of indirect reference allows for distance‐construction, but its span depends on the circumstances governing the creation and reception of historical representation. I conclude with the observation that the view presented here should not be interpreted as disconnecting historical work from past reality. (shrink)

Models of central control variables (CVs) that are expressed in positional reference frames and rely on proprioception as the dominant specifier of muscle activation patterns have not yet been shown to be adequate for the description of fast, voluntary movement, even of single joints. An alternative model with illustrative data is proposed.

Points of view are a central phenomenon in human cognition. Although the concept of point of view is ambiguous, there exist common elements in different notions. A point of view is a certain way to look at things around us. In conceptual points of view, things are looked at or interpreted through conceptual lenses. Conceptual points of view are important for epistemology, cognitive science, and philosophy of science. In this article, a new method to formalize conceptual points of (...) view is introduced. It is based on the conceptual space approach, where concepts are regions of multi-dimensional quality spaces. Points of view, as defined in this article, consist of a selection of relevant dimensions, referred to here as determinables, and of a certain supposition, referred to here as a theory, about the subject content. After considering some early efforts to formalize points of view, the notion of conceptual space is defined and explored. One concept of point of view is defined and developed in the framework of conceptual space, and a new logic for points of view is also outlined. The problem of mind–body correlation is discussed as an example of the application of the notion of points of view. To conclude, the meaning and applications of the new concepts and tools developed in the article are discussed. (shrink)

A paradox, according to Wittgenstein, is something surprising that is taken out of its context. Thus, one way of dealing with paradoxical sentences is to imagine the missing context of use. Wittgenstein formulates what I call the paradigm paradox: ‘one sentence can never describe the paradigm in another, unless it ceases to be a paradigm.’ (PG, p.346) There are several instances of this paradox scattered throughout Wittgenstein’s writings. I argue that this paradox is structurally equivalent to Russell’s paradox. The above (...) quotation is Wittgenstein’s version of the vicious circle principle which counteracts the paradox. The prohibition Wittgenstein describes is, however, limited to a certain language-game. Finally, I argue that there is a structural analogy between a noun being employed as a self-membered set and a paradigmatic sample being included in or excluded from the set it generates. Paradoxical sentences are not prohibited forever; they can indicate a change in our praxis with a given paradigm. (shrink)

This paper is devoted to the study of bare nominal arguments (i.e., determinerless NPs occurring in canonical argumental positions) from a crosslinguistic point of view. It is proposed that languages may vary in what they let their NPs denote. In some languages (like Chinese), NPs are argumental (names of kinds) and can thus occur freely without determiner in argument position; in others they are predicates (Romance), and this prevents NPs from occurring as arguments, unless the category D(eterminer) is projected. (...) Finally, there are languages (like Germanic or Slavic) which allow both predicative and argumental NPs; these languages, being the ‘union’ of the previous two types, are expected to behave like Romance for certain aspects of their nominal system (the singular count portion) and like Chinese for others (the mass and plural portions). This hypothesis (the ‘Nominal Mapping Parameter’) is investigated not just through typological considerations, but also through a detailed contrastive analysis of bare arguments in Germanic (English) vs. Romance (Italian). Some general consequences of this view, which posits a limited variation in the mapping from syntax into semantics, for current theories of Universal Grammar and acquisition are considered. (shrink)

A paradox, according to Wittgenstein, is something surprising that is taken out of its context. Thus, one way of dealing with paradoxical sentences is to imagine the missing context of use. Wittgenstein formulates what I call the paradigm paradox: ‘one sentence can never describe the paradigm in another, unless it ceases to be a paradigm.’ There are several instances of this paradox scattered throughout Wittgenstein’s writings. I argue that this paradox is structurally equivalent to Russell’s paradox. The above quotation is (...) Wittgenstein’s version of the vicious circle principle which counteracts the paradox. The prohibition Wittgenstein describes is, however, limited to a certain language-game. Finally, I argue that there is a structural analogy between a noun being employed as a self-membered set and a paradigmatic sample being included in or excluded from the set it generates. Paradoxical sentences are not prohibited forever; they can indicate a change in our praxis with a given paradigm. (shrink)

A paradox, according to Wittgenstein, is something surprising that is taken out of its context. Thus, one way of dealing with paradoxical sentences is to imagine the missing context of use. Wittgenstein formulates what I call the paradigm paradox: ‘one sentence can never describe the paradigm in another, unless it ceases to be a paradigm.’ There are several instances of this paradox scattered throughout Wittgenstein’s writings. I argue that this paradox is structurally equivalent to Russell’s paradox. The above quotation is (...) Wittgenstein’s version of the vicious circle principle which counteracts the paradox. The prohibition Wittgenstein describes is, however, limited to a certain language-game. Finally, I argue that there is a structural analogy between a noun being employed as a self-membered set and a paradigmatic sample being included in or excluded from the set it generates. Paradoxical sentences are not prohibited forever; they can indicate a change in our praxis with a given paradigm. (shrink)

Thought, Reference, and Experience is a collection of important new essays on topics at the intersection of philosophy of language, philosophy of mind, and philosophical logic. The starting-point for the papers is the brilliant work of the British philosopher Gareth Evans before his untimely death in 1980 at the age of 34. Evans's work on reference and singular thought transformed the Fregean approach to the philosophy of thought and language, showing how seemingly technical issues in philosophical semantics (...) are inextricably linked to fundamental questions about the structure of our thinking about ourselves and about the world. The papers, all newly written for this volume, explore different aspects of Evans's philosophical legacy, showing its importance to central areas in contemporary analytic philosophy. The volume includes a substantial introduction that introduces the principal themes in Evans's thought and places the papers in context. (shrink)

Lectures based on the commentaries on Brahmasūtra of Bādarāyaṇa.

"Systematizes and develops in a comprehensive study Nelson Goodman's philosophy of language. The Goodman-Elgin point of view is important and sophisticated, and deals with a number of issues, such as metaphor, ignored by most other theories." --John R. Perry, Stanford University.

In the Essay Locke argues abstract ideas within the framework of the descriptivist theory of reference. For him, abstract ideas are, in many cases, conceptual ideas that play the role of “descriptions” or “descriptive contents,” determining general terms’ referents. In contrast, in the introduction of the Principles, Berkeley denies Lockean abstract ideas adamantly from an imagistic point of view, and he offers his own theory of reference seemingly consisting of referring expressions and their referents alone. However, interestingly, (...) he mentions a general term’s “definition” and suggests that it determines the scope of the term’s referents. For example, he takes up the definition of a triangle as “a plain Surface comprehended by three right Lines” and suggests that just as Locke’s general idea of a triangle does, the definition determines the referents of the general term “triangle.” His definition reminds us of the fact that as Descartes grasps the content of the general idea of a triangle as “a figure enclosed by three lines,” so Locke grasps the abstract idea of a triangle as “a Figure including a Space between three Lines,” and so on. That is, since Berkeley is an imagist, he does not acknowledge Locke’s conceptual abstract ideas as “ideas,” but although he verbally denies “abstract ideas,” his theory of reference also actually has the same descriptivist framework consisting of referring expressions, their descriptive contents, and their referents. Thus, we understand the real reason why Berkeley’s criticism of Locke seems beside the point. (shrink)

Paul Franceschi | : Je présente dans cet article une analyse de l’argument de la Simulation selon le point de vue du contextualisme dialectique, fondée sur le problème de la classe de référence. Je décris tout d’abord l’argument de la Simulation de manière détaillée. J’identifie ensuite la classe de référence et j’applique successivement l’argument à trois classes de référence distinctes : les simulations conscientes de leur propre nature de simulation, les simulations imparfaites et les simulations à immersion. Finalement, je (...) montre qu’il existe trois niveaux de conclusion dans l’argument de la Simulation, selon la classe de référence choisie, qui engendrent des conclusions finales d’une nature très différente. | : I present in this paper an analysis of the Simulation argument from a dialectical contextualist standpoint. This analysis is grounded on the reference class problem. I begin with describing in detail Bostrom’s Simulation Argument. I identify then the reference class within the Simulation argument. I also point out a reference class problem, by applying the argument successively to three different reference classes : aware-simulations, imperfect simulations and immersion-simulations. Finally, I point out that there are three levels of conclusion within the Simulation Argument, depending on the chosen reference class, that yield each final conclusions of a fundamentally different nature. (shrink)

This paper tries to show how the Fregean semantic framework, especially the notions of sense and tone, can be used to explain certain features of history. Following Michael Dummett's interpretation of Gottlob Frege's notion of meaning, it is possible to conceive of historical works as proposing particular modes of presentation of past events. In fact, alternative historical works about the same past events could be viewed as differing in what sense and tone they express. In this paper, I first outline (...) some of the points and distinctions made by Frege. Second, I examine how the notions of sense, reference, and tone can be applied in semantic analysis of historical work. Finally, I point to a certain similarity between the Fregean framework and some of the views presented in the recent philosophy of history. My account suggests how to make use of some of the classical insights of Frege when dealing with the semantic issues of historical work. (shrink)

This article gives a holistic re-examination of the semantic content and syntactic structure of the concept of relative identity: it suggests and explains an expanded and enhanced dual-track characterization of relative identity. It is expanded in this sense: its due coverage is not narrowly restricted to the equal-status case of identity statements (the symmetric case for identity simplex) but also includes the category-assimilating case (the asymmetric case for identity complex), both of which are unified by the shared semantic core content (...) of relative identity. It is enhanced in this sense: it is intended to give a more refined characterization of relative identity for the sake of enhancing our understanding of the structure and content of real-life relative-identity statements in people’s basic employment of language in view of the relation between thought, language, and the world. (shrink)

This article uses Lancaster's characteristics approach to rank sets of alternative combinations of commodity characteristics. It is assumed that there exists a reference point or reference level from which the individual evaluates set expansions in appropriate directions. We provide an axiomatic characterization for such a case.

This compilation of references includes all references for the knowledge-how chapters included in Bengson & Moffett's edited volume. The volume and the compilation of references may serve as a good starting point for people who are unfamiliar with the philosophical literature on knowledge-how.

Normative naturalism holds that normative properties are identical with, or reducible to, natural properties. Various challenges to naturalism focus on whether it can make good on the idea that normative concepts can be used in systematically different ways and yet have the same reference in all contexts of use. In response to such challenges, some naturalists have proposed that questions about the reference of normative terms should be understood, at least in part, as normative questions that can be (...) settled through normative inquiry. In this paper I have two goals. First, I argue that these naturalist proposals do not yet allow for radical disagreement on normative matters, or at least do not explain how such disagreement is possible. Secondly, I argue that, in order to account for radical disagreement, naturalists should not only treat normative reference as a normative issue but also adopt a non-representationalist account of normative concepts, on which such concepts are individuated through their practical role. I illustrate this point by showing how a view that combines naturalism and expressivism about normative discourse can vindicate the elasticity of normative concepts, their referential stability, and the objectivity of normative truths. (shrink)

What is the role of conscious experience in action and cognition? John Campbell’s answer in Reference and Consciousness begins from ideas he thinks are part of common sense: When our actions are directed toward particular things—as when we grab our keys, or lift forks from plates—these actions are guided by visual experience. We see where to reach for keys or fork, and only then are able to do it. Similarly for the case of cognition: in cases where experience is (...) limited, such as blindsight, cognition suffers as well. Consider a blindsighter who can reliably point to the person a normally sighted speaker is talking about whenever she uses the expression ‘that woman’. Even if the blindsighter points correctly all the time, she does not understand the speaker’s use of ‘that woman’. Common sense thus finds a distinctive role for conscious experience in action and cognition, in opposition to the view that everything essential to action and cognition could proceed perfectly well without any conscious experience at all. In this way, common sense opposes epiphenomenalism about experience—the view that experience has no causal role to play with respect to cognition or action. (shrink)

This paper is an attempt to present a Kripkean (Causal) picture of Reference where the cognitive content in fixing reference plays a vital role. It also points out that Kripke is not a pure causal theorist. By introducing Thomas Kuhn and his theory on vulnerability of the rigid designation, I have shown that there is a danger for causal theory of reference. However Kuhn’s argument fails to have an impact if a Knowledge aspect is augmented to Kripkean (...) theory of reference. This new causal theory of reference preserves the truth of the referential term in spite of the vulnerability of the rigid designation and problem of reference change. It can also adequately answer the question of theoretical terms reference failure. (shrink)

Direct reference theory faces serious prima facie counterexamples which must be explained away (e.g., that it is possible to know a priori that Hesperus = Phosphorus). This is done by means of various forms of pragmatic explanation. But when those explanations that provisionally succeed are generalized to deal with analogous prima facie counterexamples concerning the identity of propositions, a fatal dilemma results. Either identity must be treated as a four-place relation (contradicting what just about everyone, including direct reference (...) theorists, takes to be essential to identity). Or direct reference theorists must incorporate a view that was rejected in pretty much our first lesson about identity—namely, that Hesperus at twilight is not identical to Hesperus at dawn. One way of the other, the direct reference theory is thus inconsistent with basic principles concerning the logic of identity, which nearly everyone, including direct reference theorists, take as starting points. (shrink)

According to recent scientific reports, certain climatic tipping points can be understood as “points of no return,” in which, for instance, anthropogenic interference changes global temperatures irreversibly. Such an outcome presents a situation unlike any considered before by risk theorists, for it introduces an element of radical uncertainty into the very value (considered ethically, culturally, and politically) of taking action on climate change. In the following I argue that ethical bases for action that rely on traditional concepts of risk (such (...) as the dominant precautionary principle) are vastly ill equipped to make sense of the catastrophes of the scale predicted by most climatologists today. Instead we need to understand the possibilities of political action beyond thresholds assumed by tipping-point calculations. This in turn means investigating action as a form of risktaking and as operating against the conservative connotations of environmental precaution. It also implies acting against the calculative assumption that one’s actions are meaningless “unless this happens by this time,” a sentiment propelled, perhaps, by the repetition in mainstream media of reference to the finality of points of no return. (shrink)

In this sequel toSelf-reference in arithmetic Iwe continue our discussion of the question: What does it mean for a sentence of arithmetic to ascribe to itself a property? We investigate how the properties of the supposedly self-referential sentences depend on the chosen coding, the formulae expressing the properties and the way a fixed point for the expressing formulae are obtained. In this second part we look at some further examples. In particular, we study sentences apparently expressing their Rosser-provability, (...) their own${\rm{\Sigma }}_n^0$-truth or their own${\rm{\Pi }}_n^0$-truth. Finally we offer an assessment of the results of both papers. (shrink)