This chapter contains sections titled: Rationality and Paradigm Shifts Incommensurable Paradigms and Holism.

In this paper, I argue that there is neither valid deductive support nor strong inductive support for Kuhn’s incommensurability thesis. There is no valid deductive support for Kuhn’s incommensurability thesis because, from the fact that the reference of the same kind terms changes or discontinues from one theoretical framework to another, it does not necessarily follow that these two theoretical frameworks are taxonomically incommensurable. There is no strong inductive support for Kuhn’s incommensurability thesis, since there are rebutting (...) defeaters against it in the form of episodes from the history of science that do not exhibit discontinuity and replacement, as Kuhn’s incommensurability thesis predicts, but rather continuity and supplementation. If this is correct, then there are no compelling epistemic reasons to believe that Kuhn’s incommensurability thesis is true or probable. (shrink)

Divided into three parts, this work is a record of the direction Kuhn was taking during the last two decades of his life. It consists of essays in which he refines the basic concepts set forth in "Structure"--Paradigm shifts, incommensurability, and the nature of scientific progress.

I criticize Kuhn’s (1962/1970) taxonomic incommensurability thesis as follows. (i) His argument for it is neither deductively sound nor inductively correct. (ii) It clashes with his account of scientific development that employs evolutionary theory. (iii) Even if two successive paradigms are taxonomically incommensurable, they have some overlapping theoretical claims, as selectivists point out. (iv) Since scientific revolutions were rare in the recent past, as historical optimists observe, they will also be rare in the future. Where scientific revolution is rare, (...) taxonomic incommensurability is rare, and taxonomic commensurability is common. For these reasons, taxonomic commensurability rather than incommensurability should be advanced as an image of science. (shrink)

Moti Mizrahi (2015) examines whether there are “good arguments” to support Kuhn’s taxonomic incommensurability (TI) thesis. He concludes that there is neither “valid deductive” nor “strong inductive” support for the thesis and that consequently TI should not be believed or accepted. In response, Lydia Patton (2015) claims that the most “influential” arguments within the history of science are abductive or inference to the best explanation (IBE) rather than deductive or inductive arguments. After reviewing and analyzing this (...) exchange, I propose that although argumentation is important for supporting Kuhn’s TI thesis, it is not the only type of support—or possibly even the most persuasive. I contend that the historian’s personal or psychological experience of accessing a revolutionary change in science—as illustrated in Kuhn’s own experience of laboring to understand the Aristotelian idea of motion while assuming a Newtonian idea of motion—represents a compelling type of support for TI. To that end, I reconstruct briefly a case history from the biomedical sciences and discuss how it supports TI vis-à-vis the Mizrahi-Patton exchange. (shrink)

In the last two sections of Structure, Thomas Kuhn first develops his famous threefold conception of the incommensurability of scientific paradigms and, subsequently, a conception of scientific progress as growth of empirical strength. The latter conception seems to be at odds with the former in that semantic incommensurability appears to imply the existence of situations where scientific progress in Kuhns sense can no longer exist. In contrast to this seeming inconsistency of Kuhns conception, we will try to show (...) in this study that the semantic incommensurability of scientific terms appears to be fully compatible with scientific progress. Our argumentation is based on an improved version of the formalization of Kuhns conception as developed in the 1970s by Joseph Sneed and Wolfgang Stegmüller: In order to be comparable, incommensurable theories need the specification of relations that refer to the concrete ontologies of these theories and involve certain truth claims. The original structuralist account of reduction fails to provide such relations, because (1) it is too structural and (2) it is too wide. Moreover, the original structuralist account also fails to cover important cases of incommensurable theories in being too restrictive for them. In this paper, we develop an improved notion of “reduction” that allows us to avoid these shortcomings by means of a more flexible device for the formalization of (partially reductive) relations between theories. For that purpose, we use a framework of rigid logic, i.e., logic that is based on a fixed collection of objects. (shrink)

In this article, I discuss Gadamer's hermeneutic account of understanding as an alternative to Kuhn's incommensurability thesis. After a brief account of Kuhn's aesthetic account and arguments against it, I argue that the linguistic account faces a paradox that results from Kuhn's objectivist account of understanding, and his lack of historical reflexivity. The statement 'Languages are incommensurable' is not a unique view of language, and is thus subject to contest by incommensurable readings. Resolving the paradox (...) requires an account of incommensurability that is self-referentially consistent, open-ended, and historically reflexive whereby we recognize that our very interest in incommensurability is historically conditioned. By meeting these conditions, Gadamer's account of historical understanding offers a middle ground between two extremes: on the one side is the claim that understanding involves becoming a native of an incommensurable language, and on the other side is the rejection of the prospect of understanding a contextually removed language altogether. Gadamer is discussed as a mediator between Kuhn's epistemic and historical projects, and thus paves the way for a new hermeneutics of science. The notions of traditional horizon, historically effected consciousness, the universality of interpretation, alienation, dialogical openness, and the fusion of horizons are also discussed. (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)

A highly condensed account of the author's present view of some philosophical problems unresolved in The Structure of Scientific Revolutions. The concept of incommensurability, now considerably developed, remains at center stage, but the evolutionary metaphor, introduced in the final pages of the book, now also plays a principal role.

The author's concept of incommensurability is explicated by elaborating the claim that some terms essential to the formulation of older theories defy translation into the language of more recent ones. Defense of this claim rests on the distinction between interpreting a theory in a later language and translating the theory into it. The former is both possible and essential, the latter neither. The interpretation/translation distinction is then applied to Kitcher's critique of incommensurability and Quine's conception of a translation (...) manual, both of which take reference-preservation as the sole semantic criterion of translational adequacy. The paper concludes by enquiring about the additional criteria a successful translation must satisfy. (shrink)

A highly condensed account of the author's present view of some philosophical problems unresolved in The Structure of Scientific Revolutions. The concept of incommensurability, now considerably developed, remains at center stage, but the evolutionary metaphor, introduced in the final pages of the book, now also plays a principal role.

A good book may have the power to change the way we see the world, but a great book actually becomes part of our daily consciousness, pervading our thinking to the point that we take it for granted, and we forget how provocative and challenging its ideas once were—and still are. _The Structure of Scientific Revolutions _is that kind of book. When it was first published in 1962, it was a landmark event in the history and philosophy of science. Fifty (...) years later, it still has many lessons to teach. With _The Structure of Scientific Revolutions, _Kuhn challenged long-standing linear notions of scientific progress, arguing that transformative ideas don’t arise from the day-to-day, gradual process of experimentation and data accumulation but that the revolutions in science, those breakthrough moments that disrupt accepted thinking and offer unanticipated ideas, occur outside of “normal science,” as he called it. Though Kuhn was writing when physics ruled the sciences, his ideas on how scientific revolutions bring order to the anomalies that amass over time in research experiments are still instructive in our biotech age. This new edition of Kuhn’s essential work in the history of science includes an insightful introduction by Ian Hacking, which clarifies terms popularized by Kuhn, including paradigm and incommensurability, and applies Kuhn’s ideas to the science of today. Usefully keyed to the separate sections of the book, Hacking’s introduction provides important background information as well as a contemporary context. Newly designed, with an expanded index, this edition will be eagerly welcomed by the next generation of readers seeking to understand the history of our perspectives on science. (shrink)

This article attempts to develop a rational reconstruction of Kuhn's epistemological relativism which effectively defends it against an influential line of criticism in the work of Shapere and Scheffler. Against the latter's reading of Kuhn, it is argued (1) that it is the incommensurability of scientific problems, data, and standards, not that of scientific meanings which primarily grounds the relativism argument; and (2) that Kuhnian incommensurability is compatible with far greater epistemological continuity from one theory to another (...) than is implied by the criticisms in question. The reconstruction of Kuhn is then used to show that while it constitutes a provocative form of relativism, it can also plausibly account for the sense in which scientific development is rational, involves standards external to particular paradigms, and exhibits progress of a sort. Finally, the article attempts to develop an adequate critical perspective on Kuhn's relativism by distinguishing a ?short?run? from a ?long?run? relativism, and a relativism concerning scientific knowledge from one concerning scientific rationality in Kuhn; the challenge each poses to positi?vist philosophy of science is distinguished and separately evaluated. (shrink)

Kuhn's ‘taxonomic conception’ of natural kinds enables him to defend and re-specify the notion of incommensurability against the idea that it is reference, not meaning/use, that is overwhelmingly important. Kuhn's ghost still lacks any reason to believe that referentialist essentialism undercuts his central arguments in SSR – and indeed, any reason to believe that such essentialism is even coherent, considered as a doctrine about anything remotely resembling our actual science. The actual relation of Kuhn to Kripke-Putnam (...) essentialism, is as follows: Kuhn decisively undermines it – drawing upon the inadequacies of such essentialism when faced with the failure of attempts to instantiate in history or contemporaneously its ‘thought-experiment’ – and leaves the field open instead for his own more ‘realistic’, deflationary way of thinking about the operation of ‘natural kinds’ in science. (shrink)

Whereas there is much discussion about Thomas Kuhn’s notion of methodological incommensurability and many have seen his ideas as an attempt to allow for rational disagreement in science, so far no serious analysis of how exactly Kuhn aims to account for rational disagreement has been proposed. This paper provides the first in-depth analysis of Kuhn’s account of rational disagreement in science—an account that can be seen as the most prominent attempt to allow for rational disagreement in science. Three things (...) will be shown: First, we find not one, but two accounts of rational disagreements in science in Kuhn’s writings: one stemming from methodological incommensurability and one stemming from Kuhn-underdetermination, which are not only fundamentally different—the first purports to explain how disagreeing scientists can nevertheless be rational, while the second attempts to show how rational scientists can nevertheless disagree—but appear to be incompatible with each other. Second, I will assess both accounts. Kuhn’s account from methodological incommensurability is not convincing since it cannot explain rational disagreement in science. Whereas, on the other hand, Kuhn’s account from Kuhn-underdetermination allows for rational disagreement, his argument why we should accept it is not convincing. Third, I present a tentative sketch of an alternative to Kuhn’s account that emphasizes the fallibility of epistemic justification in order to show that Kuhn’s argument founders. In sum, the paper shows that focusing not on the muchly debated consequences of methodological incommensurability, but on Kuhn’s treatment of rational disagreement gives new insight into the adequate interpretation of his thought as well as the cogency of his ideas. (shrink)

We establish a connection between T. Kuhn’s philosophy of science and a Wittgensteinian contextual realism, as we understand it, and interpret the basic concepts of the former in terms of the latter. In particular, we interpret the notion of a scientific paradigm in terms of the notion of a form of life. For instance, we speak of Newtonian and quantum mechanics as grammars of the corresponding forms of life. The incommensurability of paradigms is due to the adoption of different (...) norms (grammars). It is not absolute, as grammatical statements can change their status and become factual, and vice versa. Norms themselves evolve. We support Kuhn’s argument against Popper’s falsification principle with our interpretation of an established scientific theory as a Wittgensteinian norm (rule) for measuring reality. The norm is neither true nor false; its falsification makes no sense. We interpret Wittgenstein’s notion of a family resemblance, used by Kuhn, as the presence of a shared explicit or implicit Wittgensteinian rule (norm). We interpret Kuhn’s historical examples, in particular those with the systems of Ptolemy and Copernicus, relativity theory and quantum mechanics, and Kuhn’s view that participants in different paradigms see the world differently and that observation depends on theory, in terms of our thesis that ontology is sensitive to context. We thus resist the relativistic and constructivist interpretations of Kuhn’s position and show why it does not contradict the idea of scientific progress and the principle of correspondence between scientific theories. We also briefly compare Kuhn’s position with those of I. Lakatos, H. Chang (pragmatic realism) and J. MacFarlane (evaluative relativism), and compare our interpretation of Kuhn with his interpretation in terms of a naturalized transcendentalism proposed by M. Massimi. (shrink)

In this creative and engaging reading, Richard Kuhns explores the ways in which _Decameron's_sexual themes lead into philosophical inquiry, moral argument, and aesthetic and literary criticism. As he reveals the stories' many philosophical insights and literary pleasures, Kuhns also examines _Decameron_in the context of the nature of storytelling, its relationship to other classic works of literature, and the culture of trecento Italy. Stories and storytelling are to be interpreted in terms of a wider cultural context that includes masks, metamorphosis, mythic (...) themes, and character analysis, all of which Boccaccio explores with wit and subtlety. As a storyteller, Boccaccio represents himself as literary pimp, conceiving the relationship between storyteller and audience in sexual terms within a tradition that goes back as far as Socrates' conversations with the young Athenians. As a whole, Boccaccio's great collection of stories creates a trenchant criticism of the ideas that dominated his social and cultural world. Addressed as it is to women who were denied opportunities for education, the author's stories create a university of wise and culturally observant texts. He teaches that comic, religious, sexual, and artistic themes can be seen to function as metaphors for hidden and often dangerous unorthodox thoughts. Kuhns suggests that _Decameron_is one of the first self-conscious creations of what we today call "a total work of art." Throughout the stories, Boccaccio creates a detailed picture of the Florentine trecento cultural world. Giotto, Buffalmacco, and other great painters of Boccaccio's time appear in the stories. Their works and the paintings that surround the characters as they prepare to leave the plague-ridden city, with their representations of Dante, Aquinas, and other thinkers, are essential to understanding the ways the stories work with other works of art and illuminate and enlarge interpretations of Boccaccio's book. (shrink)

Thirty years after its publication, Thomas Kuhn's The Structure of Scientific Revolutions is still the source of much discussion in economics. Its rel-ativistic tone has often been used to fuel the claims of dissident traditions against the prevailing orthodoxy, or at least to plead the case for intellectual pluralism. Through his arguments regarding the incommensurability of different theoretical approaches to a particular subject, Kuhn's work has allowed many to argue that dissident traditions are just as legitimate (...) as orthodoxy for analyzing a subject, since there is no objective or independent means of arbitrating between them. This has caused an opposing response by those more supportive of the prevailing theoretical approach to economics. The latter have tried to find a defense to relativist challenges in more “rational” philosophies of science, such as that of Lakatos. (shrink)

Thomas Kuhn’s theory of paradigm reveals a pattern of scientific progress, in which normal science alternates with scientific revolution, but he underrated too much the function of scientific test in his pattern. Wesley C. Salmon pointed out that, on criticizing the so-called testing pattern of science, Kuhn focused all his attention on a single testing model, namely hypothetico–deductive (H–D) schema. However, as a matter of fact, many philosophers of science had already abandoned that schema and taken Bayesian schema as a (...) proper testing model. The main difference between Bayesian schema and the H–D schema lies in that the former is a testing model for more than one theory while the latter just for a single theory. Since Kuhn, multi-theoretical testing model has become aconsensus among experts, that is, a theory and its rivals should be faced with testing together, rather than a theory being tested in isolation. Kuhn was correct in finding the H–D schema not appropriate to scientific test, but didn’t catch the propriety of Bayesian schema in this field. This led to his disapproval of the logic or method of scientific test. I agrees largely with Salmon’s appraisal of Kuhn’s view on scientific test, and gives a further argument for it. I’ll employs Bayesian schema to re-examine Kuhn’s theory of paradigm, uncover its logical, or rational, components, and thereby illustrate the tension structure of logic and belief, rationality and irrationality, and comparability and incommensurability in the process of scientific revolution. (shrink)

In his latest book Kritik und Wissenschaftsgeschichte (Criticism and the History of Science, 1988), Gunnar Andersson clarifies the logical aspects of falsification and metalogical relationships between falsification, prediction and explanation. By analyzing the case studies on which Kuhn and Feyerabend have based their arguments for the incommensurability thesis, he shows that thesis to be untenable. A decisive criticism of the "new philosophy of science" is given. In the process Popper's methodology is developed further. It is shown that the (...) "Kuhn Revolution" is indeed a pseudo-revolution. (shrink)

I reply to Patton's "Incommensurability and the Bonfire of the Meta-Theories".

: This paper continues my application of theories of concepts developed in cognitive psychology to clarify issues in Kuhn's mature account of scientific change. I argue that incommensurability is typically neither global nor total, and that the corresponding form of scientific change occurs incrementally. Incommensurability can now be seen as a local phenomenon restricted to particular points in a conceptual framework represented by a set of nodes. The unaffected parts in the framework constitute the basis for continued (...) communication between the communities supporting alternative structures. The importance of a node is a measure of the severity of incommensurability introduced by replacing it. Such replacements occur incrementally so that changes like that from the conceptual structure of Aristotelian celestial physics to the conceptual structure of Newtonian celestial physics occur in small stages over time, and for each change it is in principle possible to identify the arguments and evidence that led historical actors to make the revisions. Thus the process of scientific change is a rational one, even when its beginning and end points are incommensurable conceptual structures. It is also apparent, from a detailed examination of the conceptual structure of astronomy at the time of Copernicus, thatthe kind of conceptual difficulty identified as incommensurability may occur within a single scientific tradition as well as between two rival traditions. (shrink)

The study presented here examines how interacting with a more capable interlocutor influences use of argumentation strategies in electronic discourse. To address this question, 54 young adolescents participating in an intervention centered on electronic peer dialogs were randomly assigned to either an experimental or control condition. In both conditions, pairs who held the same position on a social issue engaged in a series of electronic dialogs with pairs who held an opposing position. In the experimental condition, in some dialogs, unbeknownst (...) to them (because dialog took place electronically), the opponent was a more capable (“expert”) adult. Dialogs in the control condition were only with peers. Argumentation strategies of the experimental group who argued with the “expert” showed immediate strategy improvements in their subsequent peer dialogs, improvement absent in the control group (Cohen's d = 1.12). In particular, the experimental group showed greater use of counterargument in general and advanced forms of counterargument (undermining) that challenges the deeper premises or reasoning on which an argument is based. Implications with respect to mechanisms of change in the development of argumentation skills are considered. (shrink)

This article aims to illustrate the confusion within today’s secessionist movements regarding the liberal and the nationalist arguments for legitimising secession. To do so, the liberal theory of s...

In The Structure of Scientific Revolutions,Thomas Kuhn famously argued that scientific revolutions consist in paradigm shifts in which the superseded and the new paradigms are incommensurable. My aim in this paper is to show that neither Kuhn’s examples nor Yafeng Shan’s recently proposed example adequately support this incommensurability thesis. Starting from the distinction between global and local incommensurability, I argue that, on the one hand, local incommensurability does not imply that paradigms are globally incommensurable, and, on the (...) other, that it is likely that real support for Kuhn’s thesis that “the proponents of competing paradigms practice their trades in different worlds” requires global incommensurabilities. Thus, I argue that the Kuhnian view is not capable of providing satisfactory evidence that those incommensurabilities ever occurred in the history of science. (shrink)

Great effort is invested in identifying ways to change people's minds on an issue. A first priority should perhaps be enriching their thinking about the issue. With a goal of enriching their thinking, we studied the views of community adults on the DACA issue—young adults who entered the United States illegally as children. A dialogic method was employed, offering dual benefits in providing participants the opportunity to further develop their own ideas and to consider differing ideas. Yet, participants engaged in (...) dialog only vicariously by observing the talk of a pair of actors who held opposing positions on DACA. The effect on participants’ thinking was greatest in the condition in which they viewed a dialog between the two actors, rather than a comparison condition in which the actors individually expressed their positions. In control conditions, no presentation was observed. Probing questions included in all conditions encouraged a participant to examine and clarify for themselves their own position, potentially enriching it. This condition proved unsuccessful in enriching thinking; participants’ justifications for their own positions in fact became simpler and less qualified. In contrast, observing a video of a like-minded and opposing other did enrich observers’ thinking, yet to a greater degree in the dialogic than nondialogic condition. The findings thus suggest observed dialog as a promising practical approach in promoting deeper thinking. (shrink)

In 1943, Henryk Grossman sent a draft of the study, eventually published in two parts as ‘The Evolutionist Revolt against Classical Economics’, to Max Horkheimer for comment. His very hostile response, Grossman’s drafts and the published study cast light not only on the changing relationship between Grossman and Horkheimer but also on the distance between Grossman’s classical Marxism and nascent mature Critical Theory. Grossman’s study identified the emergence of the idea of successive economic systems in the work of Condorcet, Henri (...) Saint-Simon and Simonde de Sismondi in France, James Steuart and Richard Jones in England, culminating in Marx’s formulations which entailed the role of class struggle and capitalism’s tendency to break down. Hegel was not an influence on Marx’s conception of modes of production. In addition to a series of spurious and minor criticisms, Horkheimer objected that Grossman’s approach was positivist, that it misconceived Hegel’s philosophy, and that it amounted to a conventional history of ideas. In response, Grossman made some changes in his study, but these were designed to strengthen his main arguments and successfully reaffirmed his Marxist approach in the face of Horkheimer’s criticisms. (shrink)

It warrants examining how well people can come to argue under supportive conditions, not only what they do under ordinary conditions. Sustained engagement of young people in dialogic argumentation yields more than the temporary that Mercier & Sperber (M&S) identify in the target article. If such engagement were to become the norm, who can say what the argumentive potential of future generations is?

Since 1962 Kuhn's concept of incommensurability has undergone a process of transformation. His current account of incommensurability has little in common with his original account of it. Originally, incommensurability was a relation of methodological, observational and conceptual disparity between paradigms. Later Kuhn restricted the notion to the semantical sphere and assimilated it to the indeterminacy of translation. Recently he has developed an account of it as localized translation failure between subsets of terms employed by theories.

Kuhn's incommensurability thesis seems to challenge scientific realism. One response to that challenge is to focus on the continuity of reference. The casual theory of reference in particular seems to offer the possibility of continuity of reference that woud provide a basis for the sort of comparability between theories that the realist requires. In "Dubbing and Redubbing: the vulnerability of rigid designation" Kuhn attacks the causal theory and the essentialism to which is is related. Kuhn's view is (...) defended by Rupert Read and Wes Sharrock. In this paper I examine the arguments presented by Kaul, Read and Sharrock and show that they provide no reason to doubt either the causal theory or essentialism. (shrink)

Moti Mizrahi has argued that Thomas Kuhn does not have a good argument for the incommensurability of successive scientific paradigms. With Rouse, Andersen, and others, I defend a view on which Kuhn primarily was trying to explain scientific practice in Structure. Kuhn, like Hilary Putnam, incorporated sociological and psychological methods into his history of science. On Kuhn’s account, the education and initiation of scientists into a research tradition is a key element in scientific training and in his explanation of (...) incommensurability between research paradigms. The first part of this paper will explain and defend my reading of Kuhn. The second part will probe the extent to which Kuhn’s account can be supported, and the extent to which it rests on shaky premises. That investigation will center on Moti Mizrahi’s project, which aims to transform the Kuhnian account of science and of its history. While I do defend a modified kind of incommensurability, I agree that the strongest version of Kuhn’s account is steadfastly local and focused on the practice of science. (shrink)

To correct the misconception that incommensurability implies incomparability, Kuhn lately develops a new interpretation of incommensurability. This includes a linguistic theory of scientific revolutions (the theory of kinds), a cognitive exploration of the language learning process (the analogy of bilingualism), and an epistemological discussion on the rationality of scientific development (the evolutionary epistemology). My focus in this paper is to review Kuhn's effort in eliminating relativism, highlighting both the insights and the difficulties of his new version of (...) incommensurability . Finally I suggest that some of Kuhn's difficulties can be overcome by adopting a concept of rationality that filly appreciates the important role of instruments in the development of science. (shrink)

Someone is “verballed” in the Anglo-Australian idiom if they have attributed to them statements they did not actually make and indeed have explicitly denied. We will examine the evidence that Kuhn and Feyerabend were verballed in this sense by their critics and that the role of the idea of incommensurability in their argumentation has been systematically misunderstood and -represented. In particular, we will see that neither Kuhn nor Feyerabend, despite what their critics often say about them, held that (...) class='Hi'>incommensurability of theories implies the rational incomparability of theories. This is especially clear in the case of Feyerabend, whose argument is NOT that theories in a scientific tradition are on occasion incommensurable, but, rather, that, when the relations of theories in a tradition are represented in a particular way, they may on occasion be incommensurable according to that representation and hence incomparable if that representation is taken as providing the mechanisms of comparison. And the point of this claim is not to establish something about science, but, rather, to establish something about the representations of science which yield this result (i.e. that two theories might be incommensurable). Feyerabend in other words invokes incommensurability (according to the standards of a particular representation) as a reductio of that mode of representation. And this argument in fact depends precisely on the comparability of theories which are, according to the representation, incommensurable. Feyerabend’s argument is about the ways in which we should understand progress in science and he is concerned, in particular, to establish that a historically informed approach is superior to an approach which, if applicable, is applicable only to what he calls “abstract traditions”. Kuhn’s work, especially in the Postscript—1969, provides complementary materials, especially in relation to a collectivised and non-“algorithmic” account of theory choice across formally incommensurable paradigms. (shrink)

Central to Kuhn’s notion of incommensurability are the ideas of meaning variance and lexicon, and the impossibility of translation of terms across different theories. Such a notion of incommensurability is based on a particular understanding of what a scientific language is. In this paper we first attempt to understand this notion of scientific language in the context of incommensurability. We consider the consequences of the essential multisemiotic character of scientific theories and show how this leads to even (...) a single theory being potentially ‘internally incommensurable’. We then discuss Kuhn’s lexicon‐based approach to incommensurability and the problems associated with it. Finally we argue that this approach by Kuhn has interesting overlaps with the problem of meaning associated with multisemiosis, particularly the challenge of understanding the process of symbolization in scientific theories. (shrink)

In the early 1960s, American philosopher of science Thomas Kuhn contributed to a “crisis of rationality” with his hypothesis that science develops by means of paradigm shifts. He challenged the positivist concept of cumulative and continuous scientific progress. According to Kuhn, the relation between two succeeding scientific traditions ‘separated by a scientific revolution’ is characterized by conceptual incommensurability that constrains the interpretation of science as a cumulative, steadily progressing enterprise. Thomas Kuhn’s philosophy was heavily criticized by German-American biologist Ernst (...) Mayr as unapplicable to the history of biology. Mayr, one of the most outstanding evolutionary biologists of the 20th century and a “co-architect” of the so-called Modern Synthesis (contemporary Darwinism), published extensively on the history and philosophy of biology as he thought that theoretical biology cannot progress without proper philosophy of science. Being convinced of the progressive development of Darwinism, Mayr pointed out that Kuhn’s concept of scientific revolutions does not reflect conceptual changes in evolutionary biology. Here we summarize Mayr’s critiques of Kuhn and, based on our own research, take Mayr’s side in the controversy between two great thinkers. (shrink)

Central to Kuhn's notion of incommensurability are the ideas of meaning variance and lexicon, and the impossibility of translation of terms across different theories. Such a notion of incommensurability is based on a particular understanding of what a scientific language is. In this paper we first attempt to understand this notion of scientific language in the context of incommensurability. We consider the consequences of the essential multisemiotic character of scientific theories and show how this leads to (...) even a single theory being potentially 'internally incommensurable'. We then discuss Kuhn's lexicon-based approach to incommensurability and the problems associated with it. Finally we argue that this approach by Kuhn has interesting overlaps with the problem of meaning associated with multisemiosis, particularly the challenge of understanding the process of symbolization in scientific theories. (shrink)

I reply to James Marcum’s “What’s the Support for Kuhn’s Incommensurability Thesis? A Response to Mizrahi and Patton”.

Presenting a critical history of the philosophy of science in the twentieth century, focusing on the transition from logical positivism in its first half to the ...

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)

One of Thomas Kuhn's profoundest arguments is introduced in the 1970 “Postscript” to The Structure of Scientific Revolutions . Kuhn is discussing the idea of a “disciplinary matrix” as a more adequate articulation of the “paradigm” notion he'd introduced in the first, 1962, edition of his famous work . He notes that one “element” of disciplinary matrices is likely to be common to most or even all such matrices, unlike the other elements which serve to distinguish specific disciplines (...) and sub-disciplines from one another. This is the element which he calls “values”, which, as he notes , being common to a number of otherwise distinct disciplinary matrices, “do much to provide a sense of community to natural scientists as a whole”. On the other hand, they also do much, and crucially in Kuhn's view, to promote and sustain a healthy diversity among the practitioners who share any specific disciplinary matrix. In particular, Kuhn claims that “individual variability in the application of shared values may serve functions essential to science.”. (shrink)

The writings of Kuhn and Feyerabend on incommensurability challenged the idea that science progresses towards the truth. Davidson famously criticized the notion of incommensurability, arguing that it is incoherent. Davidson's argument was in turn criticized by Kuhn and others. This article argues that, although at least some of the objections raised against Davidson's argument are formally correct, they do it very little harm. What remains of the argument once the objections have been taken account of is still quite (...) damaging to the thesis that formerly endorsed scientific theories are incommensurable with those of today's science. (shrink)

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)

In their insightful article, ‘The Disvalue of Death in the Global Burden of Disease’, Solberg et al argue that there is a potential incoherence in the way disability-adjusted life years are calculated. Morbidity is measured in years lived with disability in a way quite unlike the way mortality is measured in years of life lost. This potentially renders them incommensurable, like apples and oranges, and makes their aggregate—DALYs—conceptually unsound. The authors say that it is ‘vital’ to address this problem, that (...) ‘[n]eglecting [it] is not an option’, and that ‘one cannot add YLLs and YLDs together in [their] current form’.1 Though one might object to their argument in various ways, let us assume the authors are correct that there is a potential inconsistency here. I want to ask why we should be troubled by that. Now, this question may scarcely seem worth asking. Consistency and coherence are regarded as non-negotiable in so many domains that of course we should demand them in a measure such as the DALY. And this desire for coherence is clearly shared by both the architects of the DALY and their critics.2 3 I think, though, that things are more complicated. In 2012, I wrote an article discussing the epidemiological perspective from which DALYs should be calculated.4 Simplifying greatly, here is the problem: both YLDs and YLLs can be calculated either from prevalence data or from incidence data. The most natural way to calculate YLDs bases them on prevalences, because when we think about morbidity our initial thought is of people who are suffering. The most natural way to calculate YLLs bases them on an incidence measure, because when …. (shrink)

Recently, some philosophers of science (e.g., Gürol Irzik, Michael Friedman) have challenged the ‘received view’ on the relationship between Rudolf Carnap and Thomas Kuhn, suggesting that there is a close affinity (rather than opposition) between their philosophical views. In support of this argument, these authors cite Carnap and Kuhn’s similar views on incommensurability, theory-choice, and scientific revolutions. Against this revisionist view, I argue that the philosophical relationship between Carnap and Kuhn should be regarded as opposed rather than complementary. In (...) particular, I argue that a consideration of the fundamentally disparate nature of the broader philosophical projects of Carnap (logic of science) and Kuhn (providing a theory of scientific revolutions)renders the alleged similarities between their views superficial in comparison to their fundamental differences. In defense of the received view, I suggest that Carnap and Kuhn are model representatives of two contrasting styles of doing philosophy of science, viz., logical analysis and historical analysis respectively. This analysis clarifies the role played by Kuhn’s Structure of Scientific Revolutions in the demise of logical empiricism in the second half of the twentieth-century. (shrink)