The term “exchange paradox” refers to a situation in which it appears to be advantageous for each of two holders of an envelope containing some amount of money to always exchange his or her envelope for that of the other individual, which they know contains either half or twice their own amount. We review several versions of the problem and show that resolving the paradox depends on the specifics of the situation, which must be disambiguated, and (...) on the player's beliefs. The latter psychological variables are part and parcel of the resolution. Assuming reasonable subjective distributions, exchanging cannot always be advantageous for both players. We suggest several deep-rooted psychological reasons for the considerable difficulty people demonstrably have in dealing with this problem. Implicit widespread and compelling assumptions—that affect judgement in diverse contexts—obstruct the solution. Analysing this paradox underscores the close connection between psychology and probability theory. (shrink)

This paper presents a new solution to the well-known exchange paradox, or what is sometimes referred to as the two-envelope paradox. Many recent commentators have analyzed the paradox in terms of the agent’s biased concern for the contents of his own arbitrarily chosen envelope, claiming that such bias violates the manifest symmetry of the situation. Such analyses, however, fail to make clear exactly how the symmetry of the situation is violated by the agent’s hypothetical conclusion that (...) he ought to switch envelopes on the assumption that his own envelope contains some specific amount of money. In this paper, I offer an explanation of this fact based on the idea that the agent’s deliberations are not only constrained by the epistemic symmetry reflected in the agent’s uniform ignorance as to the contents of the two envelopes, but also by a deeper methodological symmetry that manifests itself in the intuition that the two envelopes constitute equally legitimate sources of potential information. I interpret this intuition as implying that the agent’s final decision should reflect a point of rational equilibrium arrived at through an iterated process of counterfactual self-reflection, whereby the agent takes account of what he would have thought had he instead chosen the other envelope. I provide a formal model of this method of counterfactual self-reflection and show, in particular, that it cannot issue in the paradoxical conclusion that the agent ought to switch regardless of how much money is in his envelope. In this way, by correcting for the bias in the agent’s reasoning, the paradox is resolved. (shrink)

In the exchange paradox, two players receive envelopes containing different amounts of money. The assignment of the amounts ensures each player has the same probability of receiving each possible amount. Nonetheless, for each specific amount a player may find in his envelope, there is a positive expectation of gain if the player swaps envelopes with the other player, in apparent contradiction with the symmetry of the game. I consider a variant form of the paradox that avoids problems (...) with improper probabilities and I argue that in it these expectations give no grounds for a decision to swap since that decision must be based on a summation of all the expectations. But this sum yields a non‐convergent series that has no meaningful value. The conflicting recommendations – that it is to one or the other player's advantage to swap – arise from different ways of grouping terms in the sum that yield an illusion of convergence. I describe a generalized exchange paradox, explore some of its properties and display another example. (shrink)

In the exchange paradox, two players receive envelopes containing different amounts of money. The assignment of the amounts ensures each player has the same probability of receiving each possible amount. Nonetheless, for each specific amount a player may find in his envelope, there is a positive expectation of gain if the player swaps envelopes with the other player, in apparent contradiction with the symmetry of the game. I consider a variant form of the paradox that avoids problems (...) with improper probabilities and I argue that in it these expectations give no grounds for a decision to swap since that decision must be based on a summation of all the expectations. But this sum yields a non‐convergent series that has no meaningful value. The conflicting recommendations – that it is to one or the other player's advantage to swap – arise from different ways of grouping terms in the sum that yield an illusion of convergence. I describe a generalized exchange paradox, explore some of its properties and display another example. (shrink)

The “exchange paradox”—also referred to in the literature by a variety of other names, notably the “two-envelopes problem”—is notoriously difficult, and experts are not all agreed as to its resolution. Some of the various expressions of the problem are open to more than one interpretation; some are stated in such a way that assumptions are required in order to fill in missing information that is essential to any resolution. In three experiments several versions of the problem were used, (...) in each of which the information given was sufficient to determine an optimal choice strategy when it exists or to justify indifference regarding keeping or trading when such a strategy does not exist. College students who were presented with the various versions of the problem tended to base their choices on simple heuristics and to give little evidence of understanding the probabilistic implications of the differences in the problem statements. (shrink)

ABSTRACTTwo rival scholars from Shiraz in Persia, Dawānī and Dashtakī engaged in a bitter and extended dispute over a range of metaphysical and logical issues. One of these was the liar paradox. Their debate on this point marked the most extensive scrutiny of the paradox in Arabic until that time. Dashtakī’s solution was to deny that the statement ‘What I say is false’ is true or false, on the ground that there is one statement and one application of (...) the falsity predicate. Given that – ex hypothesi – there is no other statement, there is no basis for a reiteration of the truth or falsity predicate and describing the statement itself as true or false. Dawānī’s solution was to deny that ‘What I say is false’ is a statement at all, and he argued that it is instead akin to a performative utterance such as ‘I hereby sell you this’. (shrink)

This Editorial reports an exchange in form of a comment and reply on the article “History and Nature of the Jeffreys–Lindley Paradox” (Arch Hist Exact Sci 77:25, 2023) by Eric-Jan Wagenmakers and Alexander Ly.

Paradox Lost covers ten of philosophy’s most fascinating paradoxes, in which seemingly compelling reasoning leads to absurd conclusions. The following paradoxes are included: The Liar Paradox, in which a sentence says of itself that it is false. Is the sentence true or false? The Sorites Paradox, in which we imagine removing grains of sand one at a time from a heap of sand. Is there a particular grain whose removal converts the heap to a non-heap? The Puzzle (...) of the Self-Torturer, in which a series of seemingly rational choices has us accepting a life of excruciating pain, in exchange for millions of dollars. Newcomb’s Problem, in which we seemingly maximize our expected profit by taking an unknown sum of money, rather than taking the same sum plus $1000. The Surprise Quiz Paradox, in which a professor finds that it is impossible to give a surprise quiz on any particular day of the week... but also that if this is so, then a surprise quiz can be given on any day. The Two Envelope Paradox, in which we are asked to choose between two indistinguishable envelopes, and it is seemingly shown that each envelope is preferable to the other. The Ravens Paradox, in which observing a purple shoe provides evidence that all ravens are black. The Shooting Room Paradox, in which a deadly game kills 90% of all who play, yet each individual’s survival turns on the flip of a fair coin. Each paradox is clearly described, common mistakes are explored, and a clear, logical solution offered. Paradox Lost will appeal to professional philosophers, students of philosophy, and all who love intellectual puzzles. (shrink)

Cardozo, Benjamin. The Paradoxes of Legal Science. New York: Columbia University Press, 1928. v, 142 pp. Reprinted 2000 by The Lawbook Exchange, Ltd.

Arrow’s information paradox features the most radical kind of information asymmetry by diagnosing an inherent conflict between two parties inclined to exchange information. In this paper, we argue that this paradox is more richly textured than generally supposed by current economic discussion on it and that its meaning encroaches on philosophy. In particular, we uncovers the ‘epistemic’ and more genuine version of the paradox, which looms on our cognitive lives like a sort of tax on curiosity. (...) Finally, we sketch the relation between Arrow’s information paradox and the notion of zero-knowledge proofs in cryptography: roughly speaking, zero-knowledge proofs are protocols that enable a prover to convince a verifier that a statement is true, without conveying any additional information. (shrink)

This paper discusses the finite version of the two envelope paradox. (That is, we treat the paradox against the background assumption that there is only a finite amount of money in the world.).

These free-wheeling, often exhilarating dialogues—which grew out of the acclaimed Carnegie Hall Talks—are an exchange between two of the most prominent figures in contemporary culture: Daniel Barenboim, internationally renowned conductor and pianist, and Edward W. Said, eminent literary critic and impassioned commentator on the Middle East. Barenboim is an Argentinian-Israeli and Said a Palestinian-American; they are also close friends. As they range across music, literature, and society, they open up many fields of inquiry: the importance of a sense of (...) place; music as a defiance of silence; the legacies of artists from Mozart and Beethoven to Dickens and Adorno; Wagner’s anti-Semitism; and the need for “artistic solutions” to the predicament of the Middle East—something they both witnessed when they brought young Arab and Israeli musicians together. Erudite, intimate, thoughtful and spontaneous, Parallels and Paradoxes is a virtuosic collaboration. (shrink)

In this thesis I present a rights-based theory of exploitation. I argue that successful conceptions of exploitation should begin with the ordinary language claim that exploitation involves `taking unfair advantage'. Consequently, they must combine an account of what it means to take advantage of another with an account of when transactions are unfair. Existing conceptions of exploitation fail to provide adequate accounts of both aspects of exploitation. -/- Hillel Steiner and John Roemer provide convincing accounts of the unfairness involved in (...) exploitation, but because they fail to provide restrictive `advantage taking' conditions, their theories of exploitation include cases that we would not ordinarily describe as exploitations. Ruth Sample and Robert Goodin provide accounts that place a stronger emphasis on the attitudes involved in exploitation and the processes that bring it about. Unfortunately, these theories do not properly incorporate the unfairness aspect of exploitation. Consequently, they are either self-frustrating or incomplete. -/- I provide a conception of exploitation that combines both aspects. I claim that a bilateral, strictly Pareto improving, and voluntary transaction t between A and B is exploitative just in case (1) there exists an unrectified property rights violation at some point in the history of exchanges leading to t that (2) reduces B's bargaining power by altering her status quo point, and (3) the degree to which B's preferences are satisfied in t is less than it would be had B's bargaining power not been reduced (by the alteration of her status quo point). Further, (4a) A's egoistic preferences are better satisfied in t because B's bargaining power is limited, and (4b) if the previous conditions also hold for A, then the reduction in A's bargaining power is less than the reduction in B's bargaining power. Finally, (5) A truly believes the previous conditions hold. (shrink)

Bringing social theory and philosophy to bear on popular movies, novels, myths, and fairy tales, The Gift and its Paradoxes explores the ambiguity of the gift: it is at once both a relation and a thing, alienable and inalienable, present and poison. Challenging the nature of giving as reciprocal, the book engages critically with the work of Mauss and develops a new theory of the gift according to which the gift cannot be reduced to a model of exchange, but (...) must instead entail a loss or sacrifice. Ultimately, the gift is examined in the book as the impossible occurrence of gratuitous giving. (shrink)

Starting from the minimal principle of generative anthropology - that human culture originates as 'the deferral of violence through representation' - the author proposes a new understanding of the fundamental concepts of metaphysics and an explanation of the historical problematic that underlies the postmodern 'end of culture.' Part I discusses the nature of paradox and the related notion of irony, as well as the fundamental concepts of being, thinking, and signification, leading to an anthropological interpretation of the origin of (...) philosophy and semiotics in Plato's Ideas. Part II develops the idea that material exchange originates in the sparagmos or violent rendering of the sacrificial victim from which each participant obtains a roughly equal portion. Examining the holocaust, the author demonstrates how postmodern dialogue becomes dominated by the rhetoric of victimage, and the culture of centrality gives way to an aesthetic of the marginal. (shrink)

This paper attempts to provide a clearer formulation of the paradox presented by Annette B. Weiner, in terms of a requirement to keep certain objects within a social group and also a requirement to exchange them with another social group.

Commentators have claimed that the philosophies of Merleau-Ponty and Deleuze converge upon a spatial field of sensation which is prior to representation. This essay will contest these readings by showing that, for Deleuze, the pre-representational spatial field of intensity is fundamentally split from thought. This “gap” between sensation and thought is, for Deleuze, fundamentally temporal, in that thought is continually open and passive to being violated and transformed by the sensible and the sensible is continually being pushed beyond itself by (...) a certain kind of thought. This violent exchange across the gap between thought and sensibility is found, by Deleuze, in Kant's notion of the aesthetic idea. On the contrary, for Merleau-Ponty, Kant's aesthetics imply a non-conceptual “ground” shared by both thought and sensibility. By contrasting these two readings of Kant's aesthetics, this paper reveals the basic divergence between the philosophies of Deleuze and Merleau-Ponty. (shrink)

In letters that Husserl and Frege exchanged during late 1906 and early 1907, when it is thought that Frege abandoned his attempts to solve Russell's paradox, Husserl expressed his views about the "paradox". Studied here are three deep-rooted differences between their approaches to pure logic present beneath the surface in these letters. These differences concern Husserl's ideas about avoiding paradoxical consequences by shunning three potentially para-dox producing practices. Specifically, he saw the need for: 1) correctly drawing the line (...) between meaning analyses and logical analyses; 2) an epistemology of pure logic; 3) a subtler under-standing of the semantics of statements than Frege proposed. This study is part of a project to lend insight into the questions that Russell's paradox raises for logic and epistemology once signaled by Gödel, an admirer of Husserl's work. (shrink)

This project places at its center the urgency for a more responsive organ transplant policy in the United States. It studies how relationships and affinity affiliations motivate intimate exchanges, including human biological markets. Specifically, the article considers whether affinity relationships might serve as a platform in the domain of organ transplantation and if so, whether the law should tolerate discriminatory behavior in the human biologics realm. In defining affinity relationships, the article speaks primarily to race, gender, and sexual orientation. Its (...) theoretical underpinnings, however, could also apply to religion. The theoretical hunch of the article is that affinity relationships could play a role in motivating transplant procurement. (shrink)

THE POINT of studying ethics, so Aristotle reminds us, is to become, ourselves, actually good. But surely we must wonder--as did the Greeks--whether it is in fact through studying ethics that we become good, or whether we ought perhaps look rather to the subtler influences of role models, both public and private, and the practical context of home and school environment. The question is as persistent today as it was in classical Greece: How is it that human beings come to (...) lead lives of genuine human quality? This is the rock-bottom question that Meno puts to Socrates in the opening exchange of the dialogue that bears his name. It is obviously a question of crucial import for all of us, and equally obviously a question of deep concern for Plato. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:diacritics 30.1 (2000) 49-77 [Access article in PDF] The Time of the King Gift and Exchange in Zorrilla's Don Juan Tenorio Joan Ramon Resina There is something paradoxical about José Zorrilla's revision of the Don Juan legend, a certain contradiction between the play's structure and the logic of the action. The character of the protagonist, the form and implications of Don Juan's salvation, the strategies and temporality of (...) seduction, even the play's generic status--all come under the law of self-cancellation. And so does the historical time in which the play is set: the time of absolute monarchy. The proportionality between terrestrial and eschatological time, organic to the play's Golden Age precursor, 1 is strangely neutralized in Zorrilla's work through an expanding temporality without equivalent in the afterlife; and the same is true of the king's dramatic role through his removal from the scene, which he regulates nonetheless as deus ex machina of the social edifice.A nineteenth-century reader, Francesc Pi i Margall, remarked that "Zorrilla hace a Don Juan escéptico o creyente según lo van exigiendo las peripecias de su drama, y merced a esa indeterminación del carácter, le pone repetidamente en contradicción consigo mismo" (Zorrilla makes Don Juan a skeptic or a believer depending on the drama's events, and by virtue of this indeterminacy, he brings his character repeatedly into contradiction with himself) [204]. This indeterminacy affects not only the libertine's relation to religion but also the doctrinal coherence of the play, which has been the object of debate [see Mazzeo; Abrams; Wang; Romero]. Others, curiously, detect a contradiction between the play's sound theological conception and the author, who "quizá no sabe apenas nada de teología" (perhaps knows next to nothing about theology) [Alberich 16]. Yet not only Don Juan's piety but also his seductions appear self-annulling. For Luis Fernández Cifuentes, Zorrilla's most original and thus most revealing decision is "presentar el acto de seducción engañosa en el momento mismo en que deja de serlo: la carta con que comienza el drama participa de una tradición que también cancela. En el curso de la obra, es y no es un instrumento de seducción; sin cambiar de palabras, es a la vez falsa y verdadera... " (to present the act of deceitful seduction at the very moment in which it stops being deceitful: the letter with which the play starts participates in a tradition which it also cancels. Throughout the play the letter is and is not a tool of seduction; its words are at once true and false...) [83]. In the same line of structural contradictions must be included the play's temporality, which runs counter to the causal logic of the action. As Gustavo Pérez Firmat points out: "In Juan's verses normal temporal and causal sequence collapses, for future events are always catching up and outstripping the present, as if time were circular and past, present, and future travelled the circle at different speeds" [7]. Even the play's representativeness as a privileged [End Page 49] instance of Spanish romanticism has been flatly denied in light of its inconsistencies with the patterns of that movement [Gies, "José Zorrilla"]. 2 But perhaps the most telling contradiction is the one between the play's undiminished popularity for almost a century and its author's sedulous efforts to undermine its prestige. 3Author's second thoughts? A repentant artist in ascetic revulsion against mundane acclaim? It seems reasonable to assume a link between the play's popularity and the contradictions to which it gives expression. Thus, taking at face value the tired notion that Don Juan presents a fundamentally Spanish profile, 4 I will inquire whether the play's manifest contradictions are culturally efficient. 5 To this end, I will need to consider a possible incongruity between nineteenth-century forms of consciousness and the objective historical conditions. Joaquín Casalduero already pointed out a discrepancy between historical changes and... (shrink)

The article examines the situation associated with the spread of social networks, which brought not only new communication opportunities, but also the risks of blurring the boundaries between privacy and publicity. People voluntarily share personal data in exchange for public acceptance. This information is recorded and studied by various government and commercial institutions. The danger to information privacy as a right to control access to personal information is aggravated by the peculiarities of online communication, which is characterized by “context (...) collapse”: the merging of different audiences with different norms and values. Content posted on social media is searchable beyond a specific point in time and situation. If offline communication involves a foreseeable number of interlocutors, there is an “invisible audience” on social networks, which leads to information asymmetry. However, despite the fact that most users are aware of the potential dangers of privacy breaches, they share personal information on social networks. This phenomenon is called the privacy paradox. The reasons for this behavior are a lack of technical and social skills, a reluctance to spend time and energy on measures to minimize risks, a desire to have wide social connections and skepticism about the effectiveness of the efforts being made. The behavior of users on social networks is influenced primarily by factors such as age and education. The most concerned about the preservation of privacy are young people and middle-aged people, as they have to manage the most complex social relations. (shrink)

The severe shortage of organs for transplantation and the continual reluctance of the public to voluntarily donate has prompted consideration of alternative strategies for organ procurement. This paper explores the development of market approaches for procuring human organs for transplantation and considers the social and moral implications of organ donation as both a gift of life and a commodity exchange. The problematic and paradoxical articulation of individual autonomy in relation to property rights and marketing human body parts is addressed. (...) We argue that beliefs about proprietorship over human body parts and the capacity to provide consent for organ donation are culturally constructed. We contend that the political and economic framework of biomedicine, in western and non-western nations, influences access to transplantation technology and shapes the form and development of specific market approaches. Finally, we suggest that marketing approaches for organ procurement are and will be negotiated within cultural parameters constrained by several factors: beliefs about the physical body and personhood, religious traditions, economic conditions, and the availability of technological resources. (shrink)

A wealth of research documents the critical role of trust for social exchange and cooperative behavior. The ability to inspire trust in others can often be elusive, and distrust can have adverse interpersonal and ethical consequences. Drawing from the literature on social hierarchy and interpersonal judgments, the current research explores the predictive role of a structural paradox between high power and low status in identifying the actors most likely to be distrusted and monitored for ethical misconduct. Across four (...) studies and an internal meta-analysis, we found that the structural paradox was associated with distrust-related judgments and behaviors. In Study 1, high power-low status actors were judged as less trustworthy. In Studies 2 and 3, high power-low status actors were sent less money in a trust game, an effect fully mediated by feelings of dislike. Study 4 revealed that high power-low status actors were more likely to be monitored for cheating, an effect partially mediated by trust judgments. These findings contribute to business ethics research by identifying the structural paradox of high power-low status as a salient contextual influence impacting observers’ distrust and monitoring dynamics. Implications for reducing observers’ level of distrust of high power-low status actors are discussed. (shrink)

Marcel Mauss’s discussion of the gift relies on a paradox: although gift-giving is the foundational act of building a society, in order for a gift to be circulated, society must be always-already presupposed so that the gift can reach and be recognized by its destination. This article focuses on how this paradox has been addressed in anthropological and philosophical studies of the gift, by reviewing work by Claude Lévi-Strauss, Maurice Godelier and Jacques Derrida. By illuminating each position through (...) the lens of the Lacanian triad of the symbolic, the imaginary and the real, I first show how Lévi-Strauss and Godelier, respectively, focus on the symbolic and imaginary economies of the gift and how their perspectives are still bound by Mauss’s paradox in assuming the totality of society as the ultimate basis of gift exchange. I then read Derrida’s critique of Mauss as an attempt to explore the space for the aneconomic that grounds but simultaneously threatens the symbolic and imaginary economies of society. In doing so, I argue that the gift always includes the effaceable negativity and uncertainty that serve as the condition of (im)possibility for the social. (shrink)

The chronological order of the events along a spacelike path is not invariant under Lorentz transformations, as is well known. This led to an early conviction that tachyons would give rise to causal anomalies. A relativistic version of the Stückelberg-Feynman “switching procedure” (SWP) has been invoked as the suitable tool to eliminate those anomalies. The application of the SWP does eliminate the motions backwards in time, but interchanges the roles ofsource anddetector. This fact triggered the proposal of a host of (...) causal “paradoxes.” Till now, however, it has not been recognized that such paradoxes can be sensibly discussed (and completely solved, at least “in microphysics”)only after the tachyon relativistic mechanics has been properly developed. We start by showing how to apply the SWP, both in the case ofordinary special relativity and in the case with tachyons. Then we carefully exploit the kinematics of the tachyon exchange between to (ordinary) bodies. Being finally able to tackle the tachyon causality problem, we successively solve the paradoxes of : (i) Tolman-Regge, (ii) Pirani, (iii) Edmonds, and (iv) Bell. Finally, we discuss a further, new paradox associated with the transmission of signals by modulated tachyon beams. (shrink)

The Monstrosity of Christ provides an exchange between the Slovenian theorist Slavoj Žižek and the British theologian John Milbank. Both authors argue that Christianity is the religion of ‘absolute truth,’ but provide very different accounts of this. Milbank argues that Christianity is true insofar as only the incarnation of Christ mediates the paradoxical metaphysical participation of the finite within the infinite. Žižek argues that the crucifixion of Christ constitutes the death of God, demonstrating that there is no providential or (...) transcendent reality supervening on human history. This realization constitutes the universal truth of Christianity. (shrink)

In the two-envelope problem, one is offered a choice between two envelopes, one containing twice as much money as the other. After seeing the contents of the chosen envelope, the chooser is offered the opportunity to make an exchange for the other envelope. However, it appears to be advantageous to switch, regardless of what is observed in the chosen envelope. This problem has an extensive literature with connections to probability and decision theory. The literature is roughly divided between those (...) that attempt to explain what is flawed in arguments for the advantage of switching and those that attempt to explain when such arguments can be correct if counterintuitive. We observe that arguments in the literature of the two-envelope problem that the problem is paradoxical are not supported by the probability distributions meant to illustrate the paradoxical nature. To correct this, we present a distribution that does support the usual arguments. Aside from questions about the interpretation of variables, algebraic ambiguity, modal confusions and the like, most of the interesting aspects of the two-envelope problem are assumed to require probability distributions on an infinite space. Our next main contribution is to show that the same counterintuitive arguments can be reflected in finite versions of the problem; thus they do not inherently require reasoning about infinite values. A topological representation of the problem is presented that captures both finite and infinite cases, explicating intuitions underlying the arguments both that there is an advantage to switching and that there is not. (shrink)

Judgments of symmetry lay at the heart of the classical theory of probability. It was by direct appeal to the symmetries exhibited by the processes underlying simple games of chance that the earliest theorists of probability were able to justify the initial assumptions of equiprobability which allowed them to compute the probabilities of more complex events using combinatorial methods, i.e., by simply counting cases. Nevertheless, in spite of the role that symmetry played in the earliest writings on the subject, in (...) light of the fact it is only in highly contrived settings that a direct appeal to symmetries can suffice to determine the probabilities of events, many philosophers have been led to conclude that the concept of symmetry itself has, at best, a limited role to play in a general theory of probability. In this essay, I argue that this view of the matter is mistaken, and that judgments of symmetry, in fact, have an indispensible role to play in all probabilistic reasoning. In chapter 1, I provide a detailed account of symmetry-based reasoning and argue against the view that the judgments of relevance on which such reasoning is based must be construed in subjective terms if symmetry-based reasoning is to be applied to deterministic processes. In chapter 2, I argue that the two most plausible proposals for how to avoid an appeal to symmetry in the assignment of probabilities (viz., those which are based on a priori principles of epistemic conservatism or the observed frequencies of events) must themselves rely on implicit assumptions of symmetry if they are to defend themselves against the charges of incoherency and arbitrariness. In chapter 3, I consider a decision-theoretic example of symmetry-based reasoning, in which the appeal to symmetry arises in the context of an agent's choice of a deliberative methodology. In this context, the principle of symmetry amounts to the requirement that the agent avoid adopting a biased deliberative methodology, i.e., one which treats two equally legitimate sources of information differently. In the specific context of the exchange paradox, I propose an account of how biased information is to be handled, which, despite suffering from some important defects, does, I believe, capture some of our general intuitions about how a rational agent ought to adjust his expectations to correct for the effects of bias. (shrink)

This chapter attempts to give a brief overview of nonclassical (-logic) theories of truth. Due to space limitations, we follow a victory-through-sacrifice policy: sacrifice details in exchange for clarity of big-picture ideas. This policy results in our giving all-too-brief treatment to certain topics that have dominated discussion in the non-classical-logic area of truth studies. (This is particularly so of the ‘suitable conditoinal’ issue: §4.3.) Still, we present enough representative ideas that one may fruitfully turn from this essay to the (...) more-detailed cited works for further study. Throughout – again, due to space – we focus only on the most central motivation for standard non-classical-logic-based truth theories: namely, truth-theoretic paradox (specifically, due to space, the liar paradox). (shrink)

The article examines the situation associated with the spread of social networks, which brought not only new communication opportunities, but also the risks of blurring the boundaries between privacy and publicity. People voluntarily share personal data in exchange for public acceptance. This information is recorded and studied by various government and commercial institutions. The danger to information privacy as a right to control access to personal information is aggravated by the peculiarities of online communication, which is characterized by “context (...) collapse”: the merging of different audiences with different norms and values. Content posted on social media is searchable beyond a specific point in time and situation. If offline communication involves a foreseeable number of interlocutors, there is an “invisible audience” on social networks, which leads to information asymmetry. However, despite the fact that most users are aware of the potential dangers of privacy breaches, they share personal information on social networks. This phenomenon is called the privacy paradox. The reasons for this behavior are a lack of technical and social skills, a reluctance to spend time and energy on measures to minimize risks, a desire to have wide social connections and skepticism about the effectiveness of the efforts being made. The behavior of users on social networks is influenced primarily by factors such as age and education. The most concerned about the preservation of privacy are young people and middle-aged people, as they have to manage the most complex social relations. (shrink)

Productive exchange between disciplines faces a paradox. Modern fields of enquiry are large, differentiated, and always growing. This means their boundaries are extensive, and there are many areas of potential contact between them. We are spoiled for shared topics and overlapping questions. Yet differentiation also entails a high degree of specialization at any particular point, and so traffic across disciplinary borders is less common than it ought to be. The trouble with interdisciplinary work is that you need disciplines (...) in order to do it, and a discipline is a kind of exclusive conversation. Over time, participants come to share reference points and assumptions. The conversation gets more involved. Instead of looking outside, disciplines will reproduce for themselves (in miniature and unsatisfactorily) tools and concepts that are better developed in cognate fields. Economists produce a working psychology, sociologists make a sketch of historical development, political philosophers know some stylized facts about social institutions. This process is guaranteed to produce straw men and errors of fact, but it is also inevitable because the ability to assume away some topics as settled or irrelevant is a precondition for any successful discipline. (shrink)

Oleg B. Zaslavskii. The little in a non-Euclidean world: On the artistic space in Tom Stoppard's film and play “Rosencrantz and Guildenstern are dead”. It is shown that quite different aspects of Tom Stoppard’s work — spatial organization, relationship between reality and the conditional character of events, causality and narrative links, the problems of choice and personality — are united by the spatial one-sided model like the Möbius strip or Klein bottle. The artistic space turns out to be not orientable, (...) the time being cyclic. This enables us to explain the mutual exchange of names between Rosencrantz and Guildenstern and a number of other paradoxical features in the plot and composition. The model like the Möbius strip embodies the absence of a free choice: there is no other side in the world and there is no chance to escape from the fate indicated in the title of Tom Stoppard’s work. The relevance of topology, e.g. the property of a globalnature, is connected with the fact that a bearer of danger is the world as a whole. Apart from this, it points to the fact that such a structure of the world is essentially “non-Euclidean” and cannot be understood on the basis of observations from every-day life or “obvious” experiments like those carried out by Rosencrantz. (shrink)

To resolve putative liar paradoxes it is sufficient to attend to the distinction between liar-sentences and the propositions they would express, and to exercise the option of turning would-be deductions of paradox (of contradictions) into reductions of the existence of those propositions. Defending the coherence of particular resolutions along these lines, leads to recognition of the non-extensionality of some liar-sentences. In particular, it turns out that exchanges of terms for identicals in the open-sentence '- does not expression a true (...) proposition' are not invariably truth-preserving because they are not invariably proposition-expression preserving. All of this recommends propositions as fruitful subjects of interesting renewed research. (shrink)