This essay discusses implications of incommensurability of values for justified decision-making, ethics and justice. Under particular conditions incommensurability of values causes what might be called ‘incomplete comparability’ of options. Some leading theorists interpret this in terms of ‘imprecise equality’ and ‘imprecise comparability.’ This interpretation is mistaken and conceals the implications of incommensurability for practical and ethical reasoning. The aim of this essay is to show that, in many cases, incommensurability prevents the assignment of determinate weights to (...) competing values. This may have problematic consequences for a complete and impartial justification of decisions concerning conflicting values to the extent that they depend on the need of weighing them. (shrink)

This paper presents the contribution of the pragmatic sociology of critical capacities to the understanding of environmental conflicts. In the field of 'environmental valuation', nowadays colonised by economics, the approach of plural modes (or 'regimes') of engagement provides a sociological understanding of the unequal power of conflicting 'languages of valuation'. This frame entails a shift from 'values' to 'modes of valuation', and links modes of valuation to modes of practical engagement and coordination with the surrounding environment. Different social sources of (...) incommensurability are thus detected and reframed as critical tension within and among modes of human coordination with the environment. (shrink)

This paper starts with an intuitive notion of representational spaces, which is intended to provide an improved version of Kuhn's concept of paradigms. It then proceeds to study the following topics in terms of this new notion: incommensurability, paradigm change, explanation of anomalies, explanation of regularities, explanation of irregularities, and physical necessity. In the course of the investigation, "representational space" gets clarified and defined. It is envisaged that this new concept should throw light on many issues in the philosophy (...) of science. (shrink)

Value pluralism is the idea, most prominently endorsed by Isaiah Berlin, that fundamental human values are universal, plural, conflicting, and incommensurable with one another. Incommensurability is the key component of pluralism, undermining familiar monist philosophies such as utilitarianism. But if values are incommensurable, how do we decide between them when they conflict? George Crowder assesses a range of responses to this problem proposed by Berlin and developed by his successors. Three broad approaches are especially important: universalism, contextualism, and (...) conceptualism. Crowder argues that the conceptual approach is the most fruitful, yielding norms of value diversity, personal autonomy, and inclusive democracy. Historical context must also be taken into account. Together these approaches indicate a liberal politics of redistribution, multiculturalism, and constitutionalism, and a public policy in which basic values are carefully balanced. The Problem of Value Pluralism: Isaiah Berlin and Beyond is a uniquely comprehensive survey of the political theory of value pluralism and also an original contribution by a leading voice in the pluralist literature. Scholars and researchers interested in the work of Berlin, liberalism, value pluralism, and related ideas will find this a stimulating and valuable source. (shrink)

The Structure of Scientific Revolution is the famous work by Thomas Kuhn which challenged traditional understanding of science and philosophy of science. His research activities are wide-ranging; central to his notion of incommensurability are the ideas of meaning variance and lexicon, and the impossibility of translation of terms across different theories. It is closely related to the linguistic analysis of scientific language. The schematic nature of Kuhn’s work and his ongoing clarification of its key concepts fostered additional problems of (...) understanding, interpretation, and attribution. This paper analyses the notion of scientific language in the context of incommensurability with special reference to the theory of meaning. Linguistic experts have not attempted to incorporate Kuhn’s incommensurability to address the issues related to epistemology. This Paper shows how Kuhn’s theory of incommensurability can be applied to linguistics to overcome the problems that arise due to similar lexical terms. It argues that Kuhn’s epistemological analysis of incommensurability, particularly the challenge of understanding the process of symbolization in scientific theories, when applied to linguistics can revolutionize the discipline itself which fills the existing knowledge gap. (shrink)

The paper maintains and reinforces a viewpoint that science and religion are methodologically and epistemologically independent. However, it also suggests that this independence can be overcome if a “third party” is taken into account, that is – philosophy. Such a possibility seems to follow from the thesis of incommensurability and the thesis of underdetermination formulated and analysed in the current philosophy of science.

This article explores the explanation of incommensurable theories as alternative conceptual schemes based on different categorical or taxonomic structures. The concept of incommensurability, which is a cornerstone of the late philosophy of Thomas Kuhn, is elucidated, reflecting his approach to avoid assessing the history of science in terms of the truth and falsity of scientific paradigms. It is shown how Kuhn has combined Frege – Russell’s descriptivist semantics and the causal theory of reference by Hilary Putnam and Saul Kripke. (...) His version of semantics consists in redefinition of natural kinds in terms of neuropsychology, in substantiating mentalist and internalist perspective on language. Kuhn’s philosophical position is identified as post-Darwinian Kantianism. It is expressed not in a priori nature of knowledge, but in its determination by conceptual schemes and sociocultural relativity. Despite the fact that the incommensurable terms seem to occur in the history of knowledge, incommensurability remains not the clearest and most consistent way of thinking on the history of science. Kuhn repeatedly refined his views on incommensurability, ultimately aligning it more closely with alternative classifications of objects serving as a framework for subsequent theories. Natural kind concepts, like taxonomic units, distribute the perceived objects into hierarchies reflecting structures of external world. On the one hand, kinds differentiate objectively existing objects into groups. On the other hand, kind terms are both mental modules and cultural constructs that are used to organize the experience of language speakers, identify objects, and provide the basis for group beliefs. Kuhn posits that the development of scientific theories constitutes an evolution of conceptual schemes characterized by disparities and incommensurability. (shrink)

Incommensurability between successive scientific theories—the impossibility of empirical evidence dictating the choice between them—was Thomas Kuhn's most controversial proposal. Toward defending it, he directed much effort over his last 30 years into formulating precise conditions under which two theories would be undeniably incommensurable with one another. His first step, in the late 1960s, was to argue that incommensurability must result when two theories involve incompatible taxonomies. The problem he then struggled with, never obtaining a solution that he (...) found entirely satisfactory, was how to extend this initial line of thought to sciences like physics in which taxonomy is not so transparently dominant as it is, for example, in chemistry. This paper reconsiders incommensurability in the light of examples in which evidence historically did and did not carry over continuously from old laws and theories to new ones. The transition from ray to wave optics early in the nineteenth century, we argue, is especially informative in this regard. The evidence for the theory of polarization within ray optics did not carry over to wave optics, so that this transition can be regarded as a prototypical case of discontinuity of evidence, and hence of incommensurability in the way Kuhn wanted. Yet the evidence for classic geometric optics did carry over to wave optics, notwithstanding the fundamental conceptual readjustment that Fresnel's wave theory required. (shrink)

Scientists working within a paradigm must play by the rules of the game of that paradigm in solving problems, and that is why incommensurability arises when the rules of the game change. If we deny the thesis of the priority of paradigms, then there is no good argument for the incommensurability of theories and thus for taxonomic incommensurability, because there is no invariant way to determine the set of results provable, puzzles solvable, and propositions cogently formulable under (...) a given paradigm. (shrink)

This book was published in 2003.This volume presents a detailed examination of incommensurability in the value-theoretical sense. Exploring how choosers deal with problems and constraints of choice, the author draws on work in cognitive psychology, in sociology, in jurisprudence, in economics, and in the theory of value to show how choosers learn to make trade-offs when there is potential incommensurability among the options they are considering. The analysis is also informed by recent work in the tradition of Michel (...) Foucault. With so many modern devices and ideals of government dependent on the comparability of options, this book is timely and can inform public debate about de-regulation, user-pays, accountability, and the substitution of market mechanisms for government regulation and supply. (shrink)

Peter Harrison's Gifford Lectures demonstrate that the modern concepts of “religion” and “science” do not correspond to any fixed sphere of life in the pre-modern world. Because these terms are incommensurate and ideological, they misconstrue the past. I examine the influence and affinities of Ludwig Wittgenstein's philosophy on Harrison's study in order to argue that Harrison's project approaches Wittgenstein's. Harrison's book is a therapeutic history, untying a knot in scholarly language. I encourage Harrison, however, to clarify how future scholars can (...) progress in their study of phenomena once termed “scientific” or “religious” without succumbing to these same mistakes. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Rhetoric 36.3 (2003) 248-263 [Access article in PDF] The Incommensurability Thesis and the Status of Knowledge Maurice Charland The view that inquiry can be understood in terms of rhetorical theory can be traced to Thomas Kuhn's influential work, The Structure of Scientific Revolutions (1962). Kuhn is often cited by scholars concerned with the discursive strategies by which the natural and social or human sciences justify themselves (...) and their specific claims. Kuhn's legacy is well captured by Nelson, Megill, and McCloskey in the opening essay of The Rhetoric of the Human Sciences (1987) where they link him to Stephen Toulmin and Chaïm Perelman as instigators of the study of the Rhetoric of Inquiry. In their words, Kuhn's landmark classic "challenges philosophy to account for the actual operation of scientific communities—their professional devices of communication and socialization, their political structures, their reliance on aesthetics, and their rhetorical dependence on persuasion" (Nelson, Megill, and McCloskey 1987, 12). Despite this reaction, however, Kuhn's project was in many ways modest. He was not seeking to develop a sociology of science or a rhetoric of inquiry. He sought only to account for the form of modern science's history, which is not marked by linear progress, but by a succession of dominant frameworks, or what he termed paradigms.As I will argue in this essay, Kuhn's conception of paradigms is incompatible with rhetoric, except during scientific revolutions or under conditions of incommensurability. Incommensurability is a problematic category, however, for the opening it affords rhetoric ultimately undermines the very idea of paradigms. Consequently, locating rhetoric within normal science either undermines the very category distinctions that provide science with its specificity, or reduces rhetoric from a particular genre of discourse directed toward human agency to "rhetoricality," an aspect of all discourse. As we shall see, such blurring of genre distinctions is itself fundamentally [End Page 248] problematic, for science and rhetoric as discursive genres and practices are themselves incommensurable, even if not in Kuhn's terms. Rhetoric and revolution Kuhn observed that modern science is characterized by the bracketing of major disagreements regarding basic assumptions except during periods of "crisis." While pre-modern inquiry saw the contemporaneous co-existence of fundamentally incompatible frameworks, each competing for adherents, modern science normally excludes such divisions. Instead, modern science is characterized by a succession of frameworks. Only at periods of transition that are temporally bounded, for which Kuhn coined the term "scientific revolutions," does more than one framework have currency within a given sub-specialty (1962, 10-22).Kuhn accounts for this curious historical phenomenon by arguing that modern science is precisely constituted through an enforced bracketing of debates over first principles. The first principles, or paradigm, of any field are more than a set of epistemological or ontological assumptions. They are the set of rules constitutive of science as an activity. They orient scientists in their work, providing background assumptions, methodological principles, criteria of validity, a research agenda, and so on. The hegemony of a paradigm frees scientists from having to justify their work philosophically, socially, or politically. As Kuhn observes, normally science has the form of puzzle solving (35-42). He even likens it to a game, and like any game the participants need not concern themselves with the extrinsic validity of its rules or of the game itself. As Kuhn notes: Though many scientists talk easily and well about particular individual hypotheses that underlie a concrete piece of current research, they are little better than laymen at characterizing the established bases of their field, its legitimate problems and methods. If they have learned such abstractions at all, they show it mainly through their ability to do research. That ability can, however, be understood without recourse to hypothetical rules of the game. (47) Paradigms render modern science possible by producing practitioners and practices rather than by providing explicit knowledge of the principles such practices instantiate. In Foucault's language, we could say that practices are discursive formations (see Foucault 1972, 31-39). They are productive: [End Page 249] they give to knowledge... (shrink)

: This is the final part of a three-part paper. In the first part, it was proposed that a notion of phenomenon type could be relevant to tackle some crucial issues about incommensurability. Then, part II had a focus on some remaining problems associated with scientific realism and the possibility of scientific progress. In this part, some ways to solve them are offered, without abandoning the classical features of incommensurability. This can be done by showing that two rival (...) theories may refer to the same phenomenon type even if their ontologies are incompatible and assuming at the same time a non-naïve, moderate scientific realism. (shrink)

This book contains the text of Thomas Kuhn's unfinished book, The Plurality of Worlds: An Evolutionary Theory of Scientific Development, which Kuhn himself described as "a return to the central claims of The Structure of Scientific Revolutions, and the problems that it raised but did not resolve." The Plurality of Worlds is preceded by two related texts that Kuhn publicly delivered but never published in English: his paper "Scientific Knowledge as a Historical Product" and his Shearman Memorial Lectures, "The Presence (...) of Past Science." The book opens with an introduction by the editor that describes the origins and structure of The Plurality of Worlds, and sheds light on its central philosophical problems. Kuhn's aims in his last writings are bold. He sets out to develop an empirically grounded theory of meaning that would allow him to make sense of both the possibility of historical understanding and the inevitability of incommensurability between past and present science. Moreover, he intends to show that incommensurability is fully compatible with a robust notion of a real world that science investigates, with the rationality of scientific belief change, and with the idea that scientific development is progressive. This is a must-read follow-up to The Structure of Scientific Revolutions, one of the most important books of the twentieth century. (shrink)

The concept of Umwertung, central to Ecce Homo, is marked by discrepancies and incongruities that seem to defy philosophical comprehension. This paper focuses on the problem of Yes-saying and No-saying at the core of Umwertung. How can total affirmation be combined with radical critique, as Nietzsche claims? Nietzsche's favoured idiom of warfare exhibits the incommensurability of these positions, but it also points to a deeper problem: in waging war against idealism, Nietzsche risks repeating idealism, conceived as a (...) war to the death against other forms of life and thought. In §2 idealist warfare is analysed more closely, and in §3 it is contrasted with Nietzschean warfare, cinceived as an agonal form of oppositional thinking that avoids repeating idealism. This model of warfare is, however, undermined by the affirmative and destructive excesses of Nietzsche's text, and §4 proposes a different approach to the problem of Yes- and No-saying. On this approach, the affirmation of reality as war or conflictual multiplicity demands 1. the adoption of antagonistic positions with destructive intent against life-negating positions , but also 2. the overcoming of every antagonistic position in favour of an 'impossible' or fictional standpoint in the relation between antagonists; this alone allows all antagonistic positions to be affirmed. This approach is proposed as a general way to make sense of the fictional qualities of Ecce homo, its excesses and incongruities, and in §5 it is applied as a corrective to the account of Umwertung as a comparative practice proposed by Gerd Schank. (shrink)

The origins of the ‘ incommensurability problem’ and its central aspect, the ‘ meaning variance thesis’ are traced to the successive collapse of several distinctions maintained by the standard empiricist account of meaning in scientific theories. The crucial distinction is that between a conceptual structure and a theory. The ‘thesis’ and the ‘problem’ follow from critiques of this distinction by Duhem, Quine and Feyerabend. It is maintained that, rather than revealing the ‘problem’, the arguments leading to (...) it simply show the inadequacy of the reductionist theory of meaning. The genuine remaining problem is that of the development of a new theory of meaning in science. (shrink)

This book presents a critical analysis of the semantic incommensurability thesis of Thomas Kuhn and Paul Feyerabend. In putting forward the thesis of incommensurability, Kuhn and Feyerabend drew attention to complex issues concerning the phenomenon of conceptual change in science. They raised serious problems about the semantic and logical relations between the content of theories which deploy unlike systems of concepts. Yet few of the more extreme claims associated with incommensurability stand scrutiny. The argument of this book (...) is as follows. The terms of theories with different concepts diverge semantically and the vocabularies of such theories may not be fully intertranslatable. Given the possibility of referential overlap between the terms of conceptually divergent theories, it does not follow that the content of such theories is incomparable. Nor, given the distinction between understanding a language and translation from one language into another, does it follow that the proponents of mutually untranslatable theories are unable to communicate. Neither is it the case that the shift between conceptually divergent theories involves a discontinuous transition between theories which have no common reference or that refer to distinct worlds of their own making. The semantic differences resulting from conceptual variance may be embraced within a thoroughly realist framework on which they are construed as diverse linguistic relations to a fixed and independent reality. -/- The book, which was originally published in 1994, has now been re-issued in the Routledge Revivals series. -/- . (shrink)

I distinguish between two ways in which Kuhn employs the concept of incommensurability based on for whom it presents a problem. First, I argue that Kuhn’s early work focuses on the comparison and underdetermination problems scientists encounter during revolutionary periods whilst his later work focuses on the translation and interpretation problems analysts face when they engage in the representation of science from earlier periods. Secondly, I offer a new interpretation of actors’ incommensurability. I challenge Kuhn’s account of (...) incommensurability which is based on the compartmentalisation of the problems of both underdetermination and non-additivity to revolutionary periods. Through employing a finitist perspective, I demonstrate that in principle these are also problems scientists face during normal science. I argue that the reason why in certain circumstances scientists have little difficulty in concurring over their judgements of scientific findings and claims while in others they disagree needs to be explained sociologically rather than by reference to underdetermination or non-additivity. Thirdly, I claim that disagreements between scientists should not be couched in terms of translation or linguistic problems, but should be understood as arising out of scientists’ differing judgments about how to take scientific inquiry further.Keywords: Thomas Kuhn; Incommensurability; Normal science; Revolutionary science; SSK. (shrink)

An apparent incommensurability of two leading gravitational paradigms (metric and nonmetric) is considered. It is conjectured that the application of neutral language of A.P. Lightman, D.L. Lee and Kip S. Thorne (“The Foundation of Theory of Gravitational Theories”. Phys. Rev. D 1973, vol.7, pp.3563-3572) can help to solve the theory –choice problem in principle. Key words: neutral language, theory choice, gravity.

Incommensurability and Related Matters draws together some of the most distinguished contributors to the critical literature on the problem of the incommensurability of scientific theories. It addresses all the various problems raised by the problem of incommensurability, such as meaning change, reference of theoretical terms, scientific realism and anti-realism, rationality of theory choice, cognitive aspects of conceptual change, as well as exploring the broader implications of incommensurability for cultural difference. While it offers new work, (...) and new directions of discussion, on the topic of incommensurability, the book also recapitulates the history of the discussion of the topic that has taken place within the literature on incommensurability. (shrink)

This book offers a new and original hypothesis on the origin of modal ontology, whose roots can be traced back to the mathematical debate about incommensurable magnitudes, which forms the implicit background for Plato’s later dialogues and culminates in the definition of being as dynamis in the Sophist. Incommensurable magnitudes – also called dynameis by Theaetetus – are presented as the solution to the problem of non-being and serve as the cornerstone for a philosophy of difference and becoming. This (...) shift also marks the passage to another form of rationality – one not of the measure, but of the mediation. The book argues that the ontology and the rationality which arise out of the discovery of incommensurable constitutes a thread that runs through the entire history of philosophy, one that leads to Kantian transcendentalism and to the philosophies derived from it, such as Hegelianism and philosophical hermeneutics. Readers discover an insightful exchange with some of the most important issues in philosophy, newly reconsidered from the point of view of an ontology of the incommensurable. These issues include the infinite, the continuum, existence, and difference. This text appeals to students and researchers in the fields of ancient philosophy, German idealism, philosophical hermeneutics and the history of mathematics. (shrink)

: This is the second part of a three-part paper. In part I, some of the main issues regarding theoretical incommensurability and meaning invariance were considered, introducing the notion of a phenomenon type. Phenomenon types can be treated as subject matters in order to tackle the mentioned issues. Here, I show how a subject matter can be conceived as a common ground of two conflicting theories. However, crucial problems about realism and scientific progress remain. These are introduced in this (...) part of the paper and will be tackled in part III. (shrink)

Argument about euthanasia in Australia intensified following the world's first legal euthanasia death of Bob Dent under the Northern Territory's short-lived Rights of the Terminally Ill Act 1995. This paper takes stock of the implacably opposed positions on euthanasia following Bob Dent's death, which provides a focus for the controversy, and identifies the key doctrines which separate adversaries in the euthanasia debate and their associated incommensurable intuitions.

In his later writings Kuhn reconsidered his earlier account of incommensurability, clarifying some aspects, modifying others, and explicitly rejecting some of his earlier claims. In Kuhn’s new account incommensurability does not pose a problem for the rational evaluation of competing scientific theories, but does pose a problem for certain forms of realism. Kuhn maintains that, because of incommensurability, the notion that science might seek to learn the nature of things as they are in themselves is (...) incoherent. I develop Kuhn’s new account of incommensurability, respond to his anti-realist argument, and sketch a form of realism in which the realist aim is a pursuable goal.Keywords: Incommensurability; Thomas Kuhn; Rationality; Skill; Theory choice; Translation. (shrink)

Values are incommensurable when they cannot be measured on a single cardinal scale. Many philosophers suggest that incommensurability can help us solve the problems of population ethics. I agree. But some philosophers claim that populations bear incommensurable values merely because they contain different numbers of people, perhaps within some range. I argue that mere differences in how many people exist, even within some range, do not suffice for incommensurability. I argue that the intuitive neutrality of creating happy people (...) is better captured by a version of average utilitarianism. But this view is problematic. So I suggest a version of total utilitarianism that avoids the repugnant conclusion by appealing to incommensurable dimensions of wellbeing. (shrink)

The central idea of this essay is that philosophical thinking revolves around aporetic clusters, i.e., sets of individually plausible, but collectively inconsistent propositions. The task of philosophy is to dissolve such clusters, either by showing that the propositions in question, contrary to first impression, are compatible with each other, or by showing that it is permissible to abandon at least one of the propositions involved. This view of philosophical problems not only provides a very good description of well-understood philosophizing, but (...) is also better suited than others to explain some seemingly strange characteristics of philosophy, most notably its armchair character, the large variety of incommensurable doctrines by which it is characterized, and its concern with its own history. (shrink)

Human agents act for reasons that contribute to their good. However, in our explanation of why agents act for reasons that depend on what they value, we encounter the problem of situations in which goods are neither better than others nor are of equal value. The incommensurability of value can then be seen to lead to an incommensurability of reasons for action. Examining rationalist and classical conceptions of human agency, Raz uses the presence of incommensurability to (...) understand how this affects the relation between reasons and the will, and its effects on our practical reasoning and deliberation. A proper understanding of human agency will take for granted that the goodness of options are incommensurate and that explanations concerning what we want cannot solely be accomplished in terms of reasons. (shrink)

This essay enacts a particular instance of the challenge post-structuralism poses to the study of history. In simpler, language, it concerns the difference that point of view makes when people are giving account of events, whether at first or second hand. The problem is that if all accounts of events are determined through and through by the observer’s frame of reference, then one will never know, in any given case, what really happened.I encountered this problem in concrete terms (...) while preparing to teach a course in colonial American literature. I’d set out to learn what I could about the Puritans’ relations with American Indians. All I wanted was a general idea of what had happened between the English settlers and the natives in seventeenth-century New England; post-structuralism and its dilemmas were the furthest things from my mind. I began, more or less automatically, with Perry Miller, who hardly mentions the Indians at all, then proceeded to the work of historians who had dealt exclusively with the European-Indian encounter. At first, it was a question of deciding which of these authors to believe, for it quickly became apparent that there was no unanimity on the subject. As I read one, however, I discovered that the problem was more complicated than deciding whose version of events was correct. Some of the conflicting accounts were not simply contradictory, they were completely incommensurable, in that their assumptions about what counted as a valid approach to the subject, and what the subject itself was, diverged in fundamental ways. Faced with an array of mutually irreconcilable points of view, points of view which determined what was being discussed as well as the terms of the discussion, I decided to turn to primary sources for clarification, only to discover that the primary sources reproduced the problem all over again. I found myself, in other words, in an epistemological quandary, not only unable to decide among conflicting versions of events but also unable to believe that any such decision could, in principle, be made. It was a moral quandary as well. Knowledge of what really happened when the Europeans and the Indians first met seemed particularly important, since the result of that encounter was virtual genocide. This was the kind of past “mistake” which, presumably, we studied history in order to avoid repeating. If studying history couldn’t put us in touch with actual events and their causes, then what was to prevent such atrocities from happening again? Jane Tompkins is professor of English at Duke University. She is the author of Sensational Designs: The Cultural Work of American Fiction, 1790-1860 and editor of Reader-Response Criticism: From Formalism to Post-Structuralism . Her current work concerns the construction of male identity in American popular culture. (shrink)

Up to the introduction of the term and concept of incommensurability by T. S. Kuhn and P. K. Feyerabend in the early 1960s, scientific texts were supposed to pose no problem as regards their translation, unlike literature, which was thought very difficult to translate. After the introduction of the term, translation of scientific language became equally problematic because, due to conceptual and perceptual incommensurability, there was no common observation basis to ground linguistic equivalences between languages of incommensurable (...) paradigms. This article highlights the presuppositions that link incommensurability to dramatic consequences (impossibility of communication, translation, and comparative evaluation of paradigms) and tries to sketch an alternative way of understanding incommensurability and translation drawing on Kuhn’s work. From this perspective, translation is not an all-or-nothing affair for either science or literature and becomes a problem to be solved for each particular set of circumstances. (shrink)

Two options are incommensurate in value if neither is better than the other, and if a small improvement or worsening of one does not necessarily make it determinately better or worse than the other. If a person faces a sequence of choices between incommensurate options, she may end up with a worse options than she could have had, even though none of her choices are irrational. Yet it seems that rationality should save her from this bad outcome. This is the (...) practical problem posed by incommensurability of values, and it may be solved by a new account of practical reasoning. (shrink)

Balance and common sense are commonplace concepts used to bring an audience to a place of shared understanding. These commonplaces also function as decision-making heuristics. I argue in this paper that the commonplaces ?balance? and ?common sense? are problematic because they suggest decision-making strategies that strip associated information of complexity and value. Through an examination of theory and responses to interviews conducted in relation to an ongoing project on environmental rhetoric, I problematize these concepts and consider how awareness of the (...) interaction of these commonplaces and heuristics can benefit rhetors and agencies seeking environmental change. (shrink)

Incommensurability is the impossibility to determine how two options relate to each other in terms of conventional comparative relations. This book features new research on incommensurability from philosophers who have shaped the field into what it is today, including John Broome, Ruth Chang and Wlodek Rabinowicz. The book covers four aspects relating to incommensurability. In the first part, the contributors synthesize research on the competing views of how to best explain incommensurability. Part II illustrates how (...) class='Hi'>incommensurability can help us deal with seemingly insurmountable problems in ethical theory and population ethics. The contributors address the Repugnant Conclusion, the Mere Addition Paradox and so-called Spectrum Arguments. The chapters in Part III outline and summarize problems caused by incommensurability for decision theory. Finally, Part IV tackles topics related to risk, uncertainty and incommensurability. Value Incommensurability: Ethics, Risk, and Decision-Making will be of interest to researchers and advanced students working in ethical theory, decision theory, action theory, and philosophy of economics. (shrink)

According to the Incommensurability Thesis (IT) superseding scientific theories (paradigms) are incommensurable. Unlike many authors we do not discuss whether there is a relationship of this kind. We take for granted that this may be the case, and see the problem in the endeavour to establish the domain of validity of the IT. The notion incommensurability (Ic) is derivative from the concepts of scientific paradigm (P) and scientific revolution (R). There are several concepts of P, as well (...) as various conceptions of R. The Ic concept also has more than one meaning. The validity of the IT is restricted to a subset of P, R, and Ic. From the viewpoint of P this may be the case with (a) substantially different competing general conceptions not reformulated with a view to make them comparable, as well as with (b) scientific communities dogmatically committed to such conceptions. From the viewpoint of R this takes place when we have to do with big revolutions, i.e. superseding conceptions with prevailing discontinuity. Lastly, from the point of view of Ic proper: when it is meant a weak Ic, i.e. a particular incomparability (incompatibility) between the conceptions in question. (shrink)

Incommensurability of scientific theories, as conceived by Thomas Kuhnand Paul Feyerabend, is thought to be a major or even insurmountable obstacletothe empirical comparison of these theories. I examine this problem in light ofaconcrete case from the history of experimental biology, namely the oxidativephosphorylation controversy in biochemistry (ca. 1961-1977). After a briefhistorical exposition, I show that the two main competing theories which werethe subject of the ox-phos controversy instantiate some of the characteristicfeatures of incommensurable theories, namely translation failure,non-corresponding predictions, (...) and different claims about what kinds ofentitiesexist in the world. By examining how the controversy was eventually resolved, Ithen show that at least this pair of incommensurable theories couldneverthelessbe empirically compared. (shrink)

Several prominent ethical philosophers have attempted to demonstrate that there exist instances or types of value that are of crucial moral significance but which cannot legitimately be compared with one another. Bernard Williams and Michael Stocker, for example, argue that it can sometimes be rational to regret having chosen the all-things-considered better of two alternatives, and that this sense of regret entails that the goodness of the worse option is not made up for by and is therefore incommensurable with that (...) of the better. Joseph Raz and others have made similar points. In this paper, I propose a theory of value that is monistic in that it countenances just one sort of morally crucial value, but pluralistic in that several distinct properties bearer this value. I then explain how this view avoids incommensurable values without doing violence to the core intuitions that seemed to necessitate them, and how it fits into a larger conception of morality, right conduct, and moral psychology. (shrink)

Relatively recent work on Carnap, based on his published papers and books as well as on his unpublished correspondence and other material, has suggested that Carnap and Kuhn might not have been miles apart when it comes to the issue of theory-change. Two prevailing thoughts are that a) Kuhnian ‘paradigms’ might be taken to be very similar to Carnapian ‘linguistic frameworks’ and b) Kuhnian ‘ incommensurability ’ between competing paradigms is consonant with Carnap’s thesis that when a linguistic framework (...) is replaced by another, there is a change of language and the analytic-synthetic distinction needs to be redrawn within the new framework. Irzik and Grunberg have gone on to note that Carnap endorsed “semantic incommensurability ”. They base their claim on the theses that a) Carnap endorsed meaning holism; b) Carnap endorsed the thesis of ‘theory-ladenness of observation’. They are certainly right in saying that “without semantic holism semantic incommensurability would be groundless; without theory-ladenness it would be severely restricted to the theoretical terms”. But, I think, they are wrong in claiming that Carnap endorsed either meaning holism or the theory-ladenness of observation. The aim of this paper is to show how Carnap avoided the alleged problem of incommensurability. Better put, Carnap’s view about the language of science is such that this problem does not arise. Drawing on his published and unpublished material, I highlight some connections between his work on semantics and his mature work on the structure of scientific theories, which was based on his re-invention of the Ramsey-sentences. (shrink)

Is universalism necessarily ethnocentric? Are there inevitably incommensurable differences between diverse cultures and traditions? While these questions may appear highly theoretical at first sight, they inevitably have significant practical consequences as witnessed by the prominent contemporary discourse about a “clash of civilizations” , on the one hand, and by the challenges confronting multicultural, on the other. As these debates attest, the foregoing questions are truly significant because, if there is no genuine possibility of overcoming incommensurability by finding and building (...) on common ground, the future looks bleak for intercultural relations, both internally and externally. In revisiting pivotal issues at the heart of the Winchean rationality debates, and in drawing some selective comparisons with the Kuhnian incommensurability debates which came to the fore at a similar time, this paper draws on core hermeneutic insights to vindicate the tenability of a dialogical approach to the problem of intercultural communication and understanding, an approach which, it is contended, can give difference its due to the extent of stimulating a genuine and productive process of intercultural learning, in a manner that truly navigates between the Scylla of an ethnocentric universalism and the Charybdis of a self-sealing relativism, and thereby not only averts a destructive cultural stand-off or clash, but facilitates the emergence of a well-grounded “fusion of horizons”. (shrink)

Estimating whether the Earth’s biota is in the middle of a crisis relies heavily on comparisons between present and past data about biodiversity or biodiversity surrogates. Although the past is a crucial source of information to assess the severity of the current biodiversity crisis, substantive conceptual and methodological questions remain about how paleodiversity and biodiversity are to be properly compared. I argue that to justify claims of a current biodiversity crisis is harder than it appears. More precisely, I claim that (...) paleodiversity measurements are incommensurable with contemporary measurements, given the different ways that biodiversity is conceptualized and operationalized. I conclude by proposing three possible ways of overcoming this incommensurability problem. (shrink)

This book concentrates on three topics: the problem of the semantic incommensurability of theories; the non-algorithmic character of rational scientific theory choice and naturalised accounts of the rationality of methodological change. The underlying aim is to show how the phenomenon of extensive conceptual and methodological variation in science need not give rise to a thorough-going epistemic or conceptual relativism.

According to the person-affecting restriction, one distribution of welfare can be better than another only if there is someone for whom it is better. Extant problems for the person-affecting restriction involve variable-population cases, such as the nonidentity problem, which are notoriously controversial and difficult to resolve. This paper develops a fixed-population problem for the person-affecting restriction. The problem reveals that, in the presence of incommensurable welfare levels, the person-affecting restriction is incompatible with minimal requirements of impartial beneficence (...) even in fixed-population contexts. (shrink)

A recurring question about cost - benefit analysis concerns its scope. CBA is a decision-making method frequently employed in environmental policy-making, in which things which have no market price are treated as if they were commodities. They are given a monetary value, a form of price. But it is widely held that some things cannot be meaningfully priced, thus substantially limiting the scope of CBA. The aim of this paper is to test some aspects of this broad claim, focusing on (...) problems of incomparability and incommensurability. In particular, the role of rough equality as a putative form of comparison is investigated. I argue that while an assessment of the full significance of rough equality for practical decision-making awaits resolution of a number of important technical questions, it does not provide a strong enough form of comparison to support CBA. (shrink)

In this paper I consider the challenge to rational choice posed by the problem of value incommensurability, and argue that incommensurabilists misrepresentour position as practical reasoners. In essence, I claim that reason has considerably more to work with than their arguments suggest, and that as a result it is possible for us to compare even the deepest values. To say that it is possible for us to compare values is not to say that it is always easy, however, (...) or that thequestion of how best to characterize the common measure that allows for these comparisons isn’t open to vigorous dispute. But I argue that it is one thing to saythat the measure is obscure or that it guides us only imprecisely—and quite another to claim that it is conceptually impossible to weigh the deep values in lightof a common standard. (shrink)

The species problem is the longstanding puzzle regarding the nature of species. This paper aims to describe how biologists experience little communication breakdown when they have different conceptions of species. For this purpose, I analyze two debates on species and speciation between Guy Bush and Jerry Coyne & H. Allen Orr. Although they have radically different ideas on species, they experience little communication difficulty. I will argue that this is because they implicitly agreed on the referent of the group (...) of organisms being addressed and possible causal factors of the speciation process. This analysis confirms a leading account in the general philosophy of science on the way in which scientists avoid the incommensurability threat. (shrink)

The traditional sciences often bracket away ambiguity through the imposition of “enabling constraints”—making a set of assumptions and then declaring ceteris paribus. These enabling constraints take the form of uncritically examined presuppositions or “uceps.” Second order science reveals hidden issues, problems and assumptions which all too often escape the attention of the practicing scientist. These hidden values—precisely because they are hidden and not made explicit—can get in the way of the public’s acceptance of a scientific claim. A conflict in understood (...) meaning—between the scientist’s restricted claims and the public’s broader understanding of those same claims can result in cognitive dissonance or the equivalent of the Mori Uncanny Valley. Scientists often react to these differences by claiming “incommensurability” between their restricted claim and the public’s understanding. Second order science, by explicating the effects of variations in values assumed for these uceps and associated impacts on related scientific claims, can often moot these assertions of incommensurability and thereby promote greater scientific understanding. This article explores how second order science can address issues of public doubt regarding the scientific enterprise using examples from medicine, diet and climate science. (shrink)

Incommensurability may be regarded as driving specialisation, on the one hand, and as posing some problems to interdisciplinarity, on the other hand. It may be argued, however, that incommensurability plays no role in either specialisation or interdisciplinarity. Scientific specialties could be defined as simply 'different' (that is, about different things), rather than 'incommensurable' (that is, competing for the explanation of the same phenomena). Interdisciplinarity could be viewed as the co- ordinated effort of scientists possessing complemetary and interlocking skills, (...) and not as the overcoming of some sort of incommensurable divide. This article provides a comprehensive evaluative examination of the relations between specialisation, interdisciplinarity, and incommensurability. Its aim is to defend the relevance of incommensurability to both specialisation and interdisciplinarity. At the same time, it aims at correcting the tendency, common among many philosophers, to regard incommensurability in a restrictive manner - such as, for example, as an almost purely semantic issue. (shrink)

In this paper, we analyze the debate between the Modern Synthesis and the Extended Evolutionary Synthesis in light of the concept of incommensurability developed by Thomas Kuhn. In order to do so, first we briefly present both the Modern Synthesis and the Extended Evolutionary Synthesis. Then, we clarify the meaning and interpretations of incommensurability throughout Kuhn’s works, concluding that the version of this concept deployed in The Structure of Scientific Revolutions is the best suited to the analysis of (...) scientific disputes. After discussing incommensurability in Kuhn’s works, we address the question of whether the Modern Synthesis and the Extended Evolutionary Synthesis can be considered semantically, methodologically, and ontologically incommensurable, concluding that they can. Finally, we discuss three problems that arise from such a conclusion: firstly, what are the consequences of incommensurability; secondly, which mode of scientific change better explains this current dispute in evolutionary biology; and thirdly, whether rational theory comparison is possible given incommensurability. We suggest that the main consequence of incommensurability is profound disagreement, that the kind of scientific change that better explains the current dispute between the MS and the EES may be scientific specialization, and that incommensurability does not preclude rational theory comparison. (shrink)