First published in 1988. Routledge is an imprint of Taylor & Francis, an informa company.

INTRODUCTION This volume of essays is meant as a tribute to Alistair Crombie by some of those who have studied with him. The occasion of its publication is ...

Der Denkstil der Chemiker. Der Aufsatz diskutiert die Tragfähigkeit des Begriffes “Denkstil”, wie er von Alistair Crombie eingeführt und Ian Hacking aufgegriffen wurde, für das Verständnis dessen, wie das Fach Chemie historisch seine Identität ausgeprägt hat. Obwohl weder Crombie noch Hacking den Begriff “Denkstil” in Bezug auf einzelne Disziplinen verwendet haben, erscheint im Fall der Chemie seine Anwendung besonders vielversprechend, weil er hier hilft, ein zentrales Problem zu thematisieren – nämlich die Frage, wie es Chemikern trotz wechselnder (...) Gegenstandsbereiche und theoretischer Umbrüche gelang, eine eigenständige und stabile Identität auszubilden. Nach einer Einführung in den Begriff “Denkstil”, argumentiert der Aufsatz, dass die Beständigkeit der Chemie als eines Faches wesentlich in ihren Laborpraktiken gründet, die ihrerseits wiederum die spezifische Art der Fragen bestimmten, die Chemiker in ihren Forschungen stellten bzw. die Form der Antworten, nach denen sie suchten. Folgende Merkmale kennzeichnen diesen “chemischen Denkstil” (1) eine spezifische, im Herstellen begründete Form des Wissens, (2) die Befassung mit einzelnen Stoffen und Materialien statt mit Materie im Allgemeinen und (3) eine Beobachtung von Natur besonders im Hinblick auf Transformationsprozesse.The Chemists' Style of Thinking. This paper discusses the relevance of the notion of “styles of scientific thinking” introduced by Alistair Crombie and revisited by Ian Hacking, for understanding how chemistry shaped its identity. Although neither Crombie nor Hacking applied this notion to individual disciplines, it seems appropriate to use it in the case of chemistry because it helps to address a puzzling issue: how did chemists manage to shape an identity of their own, despite shifting territories and theoretical transformations? Following a presentation of the notion of style, I will argue that the stable identity of chemistry is rooted in laboratory practices, which determined the specific questions that chemists put to nature as well as the answers to their questions. The “chemical style of thinking” is characterized by i) a specific way of knowing through making, ii) the concern with individual materials rather than matter in general and iii) a specific commitment to nature. (shrink)

The paper begins with a detailed reconstruction of the development of Ian Hacking’s theory of scientific ‘styles of reasoning’, paying particular attention to Alistair Crombie’s influence, and suggesting that Hacking’s theory deserves to come under the title ‘historical epistemology’. Subsequently, the paper seeks to establish three critical theses. First, Hacking’s reliance on Crombie leads him to adopt an outdated historiographical position; second, Hacking is unsuccessful in his attempt to distance historical epistemology from epistemic relativism; and third, Hacking (...) has not offered convincing criteria for individuating styles of reasoning. Keywords: Styles of reasoning; Historical epistemology; Ian Hacking; Alistair Crombie; Relativism; Sociology of scientific knowledge. (shrink)

This paper compares the views of styles of science of Alistair Crombie and Ian Hacking with the notion of styles of art, as developed by Alois Riegl at the end of the 19th Century. Important similarities are noted, notably in the conceptualization of the autonomy of styles. Riegl developed in particular the notion of Kunstwollen , which encompasses an implied relation to the world, in both a cognitive and an ethical sense, and a relation to the public of (...) art. The latter aspect will be examined as the “role of the spectator”. Finally, a number of Riegl’s view on art are tentatively applied to styles of science. (shrink)

The field of AI safety seeks to prevent or reduce the harms caused by AI systems. A simple and appealing account of what is distinctive of AI safety as a field holds that this feature is constitutive: a research project falls within the purview of AI safety just in case it aims to prevent or reduce the harms caused by AI systems. Call this appealingly simple account The Safety Conception of AI safety. Despite its simplicity and appeal, we argue that (...) The Safety Conception is in tension with at least two trends in the ways AI safety researchers and organizations think and talk about AI safety: first, a tendency to characterize the goal of AI safety research in terms of catastrophic risks from future systems; second, the increasingly popular idea that AI safety can be thought of as a branch of safety engineering. Adopting the methodology of conceptual engineering, we argue that these trends are unfortunate: when we consider what concept of AI safety it would be best to have, there are compelling reasons to think that The Safety Conception is the answer. Descriptively, The Safety Conception allows us to see how work on topics that have historically been treated as central to the field of AI safety is continuous with work on topics that have historically been treated as more marginal, like bias, misinformation, and privacy. Normatively, taking The Safety Conception seriously means approaching all efforts to prevent or mitigate harms from AI systems based on their merits rather than drawing arbitrary distinctions between them. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Impact of Aristotelianism on Modern PhilosophyJean-Robert ArmogatheRiccardo Pozzo, editor. The Impact of Aristotelianism on Modern Philosophy. Washington, D.C.: The Catholic University of America Press, 2004. Pp. xvi + 336. Cloth, $69.95.The status of a "great" philosopher is to stand out for centuries, asking questions in such a way that the answers can never be definitive. Not so many of them are able to stand such a severe (...) proof. Aristotle phrased some questions we are still groping to answer. It was a very good idea to ask thirteen scholars to deliver a lecture series at the Catholic University of America during the Fall 1999 about the reception of Aristotle's theory of intellectual virtues (Nich. Ethics VI). The speakers did not stick to this issue, and enlarged their purpose to a general approach of Aristotle's receptions in various moments of Western modern philosophy.Edward Mahoney complements Charles Schmitt's basic introduction to Aristotle and the Renaissance, with some very valuable pages about Cardinal Bessarion's contribution to the Byzantine debate aroused in 1439 by Plethon's comparison between Plato and Aristotle (in favor of the former). Along with Charles Schmitt, Antonino Poppi is the best specialist of the Paduan tradition, and wrote a very qualified paper about Zabarella (1533-89), who shaped Aristotelianism into the rigorous science of the schoolbooks: for centuries, Aristotle is read through Zabarella's glasses. Apart from a bird's view on recent Galilean studies (where Alistair Crombie is not mentioned), William A. Wallace makes his point about Aristotle's influence on Galilean logics, linking Galileo's 1640 letter to Liceti (where he states that, in matters of logic, he has been an Aristotelian all his life) to the scientist's deep knowledge as revealed by the logical questions in one of the juvenile treatises (ms 27 in Florence, more thoroughly studied in Wallace's book, Galileo's Logic of Discovery and Proof [Dordrecht, 1992]). John Doyle, a specialist of Late Scholastic Philosophy, figures out a [End Page 209] strange character, the French Jesuit André Semery (1630-1717), who taught for thirty years at the Collegium romanum. In a very anti-Aristotelian way, he holds a definite belief in metaphysical beings of reason. The boundary between what we can think and say is quietly stepped over, when Semery and other Jesuits begin to think about thinking, opening a very modern path which leads to Brentano and Quine. Christia Mercer states that Leibniz's combination of a Platonist epistemology with an Aristotelian conception of nature brings a very innovative view in ethics. A very forceful paper by Richard L. Velkley compares Rousseau's politics to Aristotle's view of man (the paper became a chapter of his 2002 impressive book Being after Rousseau), while Riccardo Pozzo gives a short presentation of Aristotle's reception in modern Germany, and an elaborate analysis of Kant's debt to Aristotle for the intellectual virtues. Hegel's appropriation of Aristotelian intellect is presented by Alfredo Ferrarin, while Michael Davis reconstructs Nietzsche's path from Aristotle to the tragedy and back, in a very convincing way. Husserl (Richard Cobb-Stevens), Heidegger (Stanley Rosen), Wittgenstein (Daniel Dahlstrom) and Gadamer (Enrico Berti) conclude brilliantly the series, showing how the thought of the Stagirite fertilized contemporary philosophers, in a permanent dialogue of disagreement or borrowing, never at rest, and never leaving anyone indifferent. The old Greek man remains a vivid debater for our age of anxiety.Jean-Robert ArmogatheThe University of Paris-SorbonneCopyright © 2005 Journal of the History of Philosophy, Inc.... (shrink)

In order to prevent the rapid spread of COVID-19, governments have placed significant restrictions on liberty, including preventing all non-essential travel. These restrictions were justified on the basis the health system may be overwhelmed by COVID-19 cases and in order to prevent deaths. Governments are now considering how they may de-escalate these restrictions. This article argues that an appropriate approach may be to lift the general lockdown but implement selective isolation of the elderly. While this discriminates against the elderly, there (...) is a morally relevant difference—the elderly are far more likely to require hospitalisation and die than the rest of the population. If the aim is to ensure the health system is not overwhelmed and to reduce the death rate, preventing the elderly from contracting the virus may be an effective means of achieving this. The alternative is to continue to keep everyone in lockdown. It is argued that this is levelling down equality and is unethical. It suggests that in order for the elderly to avoid contracting the virus, the whole population should have their liberty deprived, even though the same result could be achieved by only restricting the liberty of the elderly. Similar arguments may also be applied to all groups at increased risk of COVID-19, such as men and those with comorbidities, the obese and people from ethnic minorities or socially deprived groups. This utilitarian concern must be balanced against other considerations, such as equality and justice, and the benefits gained from discriminating in these ways must be proportionately greater than the negative consequences of doing so. Such selective discrimination will be most justified when the liberty restriction to a group promotes the well-being of that group (apart from its wider social benefits). (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Impact of Aristotelianism on Modern PhilosophyJean-Robert ArmogatheRiccardo Pozzo, editor. The Impact of Aristotelianism on Modern Philosophy. Washington, D.C.: The Catholic University of America Press, 2004. Pp. xvi + 336. Cloth, $69.95.The status of a "great" philosopher is to stand out for centuries, asking questions in such a way that the answers can never be definitive. Not so many of them are able to stand such a severe (...) proof. Aristotle phrased some questions we are still groping to answer. It was a very good idea to ask thirteen scholars to deliver a lecture series at the Catholic University of America during the Fall 1999 about the reception of Aristotle's theory of intellectual virtues (Nich. Ethics VI). The speakers did not stick to this issue, and enlarged their purpose to a general approach of Aristotle's receptions in various moments of Western modern philosophy.Edward Mahoney complements Charles Schmitt's basic introduction to Aristotle and the Renaissance, with some very valuable pages about Cardinal Bessarion's contribution to the Byzantine debate aroused in 1439 by Plethon's comparison between Plato and Aristotle (in favor of the former). Along with Charles Schmitt, Antonino Poppi is the best specialist of the Paduan tradition, and wrote a very qualified paper about Zabarella (1533-89), who shaped Aristotelianism into the rigorous science of the schoolbooks: for centuries, Aristotle is read through Zabarella's glasses. Apart from a bird's view on recent Galilean studies (where Alistair Crombie is not mentioned), William A. Wallace makes his point about Aristotle's influence on Galilean logics, linking Galileo's 1640 letter to Liceti (where he states that, in matters of logic, he has been an Aristotelian all his life) to the scientist's deep knowledge as revealed by the logical questions in one of the juvenile treatises (ms 27 in Florence, more thoroughly studied in Wallace's book, Galileo's Logic of Discovery and Proof [Dordrecht, 1992]). John Doyle, a specialist of Late Scholastic Philosophy, figures out a [End Page 209] strange character, the French Jesuit André Semery (1630-1717), who taught for thirty years at the Collegium romanum. In a very anti-Aristotelian way, he holds a definite belief in metaphysical beings of reason. The boundary between what we can think and say is quietly stepped over, when Semery and other Jesuits begin to think about thinking, opening a very modern path which leads to Brentano and Quine. Christia Mercer states that Leibniz's combination of a Platonist epistemology with an Aristotelian conception of nature brings a very innovative view in ethics. A very forceful paper by Richard L. Velkley compares Rousseau's politics to Aristotle's view of man (the paper became a chapter of his 2002 impressive book Being after Rousseau), while Riccardo Pozzo gives a short presentation of Aristotle's reception in modern Germany, and an elaborate analysis of Kant's debt to Aristotle for the intellectual virtues. Hegel's appropriation of Aristotelian intellect is presented by Alfredo Ferrarin, while Michael Davis reconstructs Nietzsche's path from Aristotle to the tragedy and back, in a very convincing way. Husserl (Richard Cobb-Stevens), Heidegger (Stanley Rosen), Wittgenstein (Daniel Dahlstrom) and Gadamer (Enrico Berti) conclude brilliantly the series, showing how the thought of the Stagirite fertilized contemporary philosophers, in a permanent dialogue of disagreement or borrowing, never at rest, and never leaving anyone indifferent. The old Greek man remains a vivid debater for our age of anxiety.Jean-Robert ArmogatheThe University of Paris-SorbonneCopyright © 2005 Journal of the History of Philosophy, Inc.... (shrink)

This book provides papers of the conference of leading scientists and philosophers on the notion of progress of knowledge, which is constitutive of our modern selfunderstanding, from the perspective of their disciplines. Summary of contents: 1. GEorg Henrik von Wright, Progress: Fiction and Fact 2. WAlter Burkert, Impact and Limits of the Idea of Progress in Antiquity 3. AListair Crombie, Philosophical Commitments and Scientific Progress 4. SHigeru Nakayama, Chinese "Cyclic" View of History vs Japanese "Progress" 5. JEan Blondel, (...) Political Progress: Illusion or Reality 6. NIcholas Rescher, Progress and the Future 7. RUdolf Flotzinger, Progress and Development in Musical History 8. DAg Pravitz, Progress in Philosophy 9. JOhn D. BArrow, Time in the Universe 10. ANtonio Garcia-Bellido, Progress in Biological Evolution 11. GEreon Wolters, The Idea of Progress in Evolutionary Biology: Philosophical Considerations 12. PHilippe Lazar, The Idea of Progress in Human Health. (shrink)

Greg Ray (2014) believes he has discovered a crucial oversight in Donald Davidson’s semantic programme, recognition of which paves the way for a novel approach to Davidsonian semantics. We disagree: Ray’s novel approach involves a tacit appeal to pre-existing semantic knowledge which vitiates its interest as a development of the Davidsonian programme.

In recent years, there has been a rapid growth in the use of autologous stem cell-based interventions to treat a wide range of medical conditions, including those for which there is limited evidence of safety and efficacy. One justification for this growth in the use of unproven interventions is that clinicians should be free to innovate, as long as consumers are adequately informed about risks and benefits. In this essay, we systematically refute the strong claim that consumer and clinician autonomy (...) provide sufficient justification for clinical innovation with autologous stem cells. While we do not deny the importance of consumer and clinician autonomy, we argue that equal consideration needs to be given... (shrink)

The journey into the world of midwifery or nursing requires the student to attend to the intertwining of self-body-world in order to shift their knowledge of self-body-world into a client/patient-centered context. One of the teaching-learning strategies used to provide safe opportunities is the use of simulations and virtual practices. Rather than learning intimate acts of touching, or life and death decision-making in situations with actual clients/patients, students enter their learning world with rubber torsos, cloth babies, and cyber clinics. The “other” (...) is a simulated other, not a human. How does the student shift from seeing this simulated other as object to a sense of other as subject? In our world of constant use of technology for communication and entertainment, do students shift in and out of a cyber world easily or are they more captured by the simulated experience than with the human world? Has the human world redefined itself where the intertwining of self-body-world blurs the sense of where human body ends and cyber or simulated world begins? What is the place of Bildung when engaged with a cyber other? As a result of educational challenges, including rising enrolments, limited clinical placement opportunities, and increasing risk management concerns, there has been a proliferation in the use of simulation as a teaching strategy. This has left us –the authors– wondering about the student experience of simulation. What do they learn? How do they learn? How can this learning be applied in practice? (shrink)

Mechanism realists assert the existence of mechanisms as objective structures in the world, but their exact metaphysical commitments are unclear. We introduce Local Hierarchy Realism (LHR) as a substantive and plausible form of mechanism realism. The limits of LHR reveal a deep tension between two aspects of mechanists’ explanatory strategy. Functional decomposition identifies locally relevant entities and activities, while these same entities and activities are also embedded in a nested hierarchy of levels. In principle, a functional decomposition may identify entities (...) engaging in causal interactions that crosscut the hierarchical structure of composition relations, violating the mechanist’s injunction against interlevel causation. We argue that this possibility is realized in the example of ephaptic coupling, a subsidiary process of neural computation that crosscuts the hierarchy derived from synaptic transmission. These considerations undermine the plausibility of LHR as a general view, yet LHR has the advantages that (i) its metaphysical implications are precisely stateable; (ii) the structure it identifies is not reducible to mere aggregate causation; and (iii) it clearly satisfies intuitive and informal definitions of mechanism. We conclude by assessing the prospects for a form of mechanism realism weaker than LHR that nevertheless satisfies all three of these requirements. (shrink)

Amongst historians of economics it is generally assumed that while the term economics derives from the Greek term oikonomikos —the theory of household management—the ancient Greeks did not develop what we call economics. This paper traces the relation between the Greek term and the modern—a relation which is generally said not to exist. The paper is a critical theoretical attempt to begin to trace the underlying assumptions of modern economic theory as well as the more general question of the legacy (...) of ancient Greece on the modern world. (shrink)

Most work addressing clinical workers' professional responsibilities concerns the norms of conduct within established professional–patient relationships, but such responsibilities may extend beyond the clinical context. We explore health workers' professional responsibilities in such “informal” encounters through the example of a doctor witnessing the misdiagnosis and mistreatment of a serious long-term condition in a television documentary, arguing that neither internalist approaches to professional responsibility nor externalist ones provide sufficiently clear guidance in such situations. We propose that a mix of both approaches, (...) emphasizing the noncomplacency and practical wisdom of virtue ethics, but grounding the normative authority of virtue in an external source, is able to engage with the health worker's responsibilities in such situations to the individual, the health care system, and the population at large. (shrink)

What are the ontological commitments of a sentence? In this paper I offer an answer from the perspective of the truthmaker theorist that contrasts with the familiar Quinean criterion. I detail some of the benefits of thinking of things this way: they include making the composition debate tractable without appealing to a neo-Carnapian metaontology, making sense of neo-Fregeanism, and dispensing with some otherwise recalcitrant necessary connections.

'Chains of Being' argues that there can be infinite chains of dependence or grounding. Cameron also defends the view that there can be circular relations of ontological dependence or grounding, and uses these claims to explore issues in logic and ontology.

Some say that public policy can be made without the benefit of theory--that it emerges, instead, through trial-and-error. Others see genuine philosophical issues in public affairs but try to resolve them through fanciful examples. Both, argues Robert E. Goodin, are wrong. Goodin--a political scientist who is also an associate editor of Ethics--shows that empirical and ethical theory can and should guide policy. To be useful, however, these philosophical discussions of public affairs must draw upon actual policy experiences rather than contrived (...) cases. Further, they must reflect the broader social consequences of policies rather than just the dilemmas of personal conscience. Effectively integrating the literatures of social science, policy science, and philosophy, Goodin provides a theoretically sophisticated yet empirically well-grounded analysis of public policies, the principles underlying them, the institutions shaping them, and the excuses offered for their failures. This analysis is enhanced by the author's discussion of such specific cases as the disposal of nuclear wastes and the priority accorded national defense--cases that illustrate Goodin's theoretical and methodological framework for approaching policy issues. (shrink)

Background: Surveillance technology such as tag and tracking systems and video surveillance could increase the freedom of movement and consequently autonomy of clients in long-term residential care settings, but is also perceived as an intrusion on autonomy including privacy. Objective: To explore how clients in residential care experience surveillance technology in order to assess how surveillance technology might influence autonomy. Setting: Two long-term residential care facilities: a nursing home for people with dementia and a care facility for people with intellectual (...) disabilities. Methods: Ethnographic field study. Ethical considerations: The boards representing clients and relatives/proxies of the clients were informed of the study and gave their written consent. The clients’ assent was sought through a special information leaflet. At any time clients and/or proxy were given the option to withdraw from the study. The research protocol was also reviewed by a medical ethics committee. Findings: Our findings show a pattern of two themes: (1) coping with new spaces which entailed clients: wandering around, getting lost, being triggered, and retreating to new spaces and (2) resisting the surveillance technology measure because clients feel stigmatized, missed the company, and do not like being “watched.” Conclusion: Client experiences of surveillance technology appear to entail a certain ambivalence. This is in part due to the variety in surveillance technology devices, with each device bringing its own connotations and experiences. But it also lies in the devices’ presupposition of an ideal user, which is at odds with the actual user who is inherently vulnerable. Surveillance technology can contribute to the autonomy of clients in long-term care, but only if it is set in a truly person-centered approach. (shrink)

Topics in Cognitive Science, Volume 13, Issue 1, Page 187-205, January 2021.

The world is about to be swamped by an unprecedented wave of AI-generated content. We need reliable ways of identifying such content, to supplement the many existing social institutions that enable trust between people and organisations and ensure social resilience. In this paper, we begin by highlighting an important new development: providers of AI content generators have new obligations to support the creation of reliable detectors for the content they generate. These new obligations arise mainly from the EU’s newly finalised (...) AI Act, but they are enhanced by the US President’s recent Executive Order on AI, and by several considerations of self-interest. These new steps towards reliable detection mechanisms are by no means a panacea—but we argue they will usher in a new adversarial landscape, in which reliable methods for identifying AI-generated content are commonly available. In this landscape, many new questions arise for policymakers. Firstly, if reliable AI-content detection mechanisms are available, who should be required to use them? And how should they be used? We argue that new duties arise for media and Web search companies arise for media companies, and for Web search companies, in the deployment of AI-content detectors. Secondly, what broader regulation of the tech ecosystem will maximise the likelihood of reliable AI-content detectors? We argue for a range of new duties, relating to provenance-authentication protocols, open-source AI generators, and support for research and enforcement. Along the way, we consider how the production of AI-generated content relates to ‘free expression’, and discuss the important case of content that is generated jointly by humans and AIs. (shrink)

Journal of Philosophy of Education, EarlyView.

Early psychophysical methods as codified by Fechner motivate the development of quantitative theories of subjective experience. The basic insight is that just noticeable differences between experiences can serve as units for measuring a sensory domain. However, the methods described by Fechner tacitly assume that the experiences being investigated can be linearly ordered. This assumption is not true for all sensory domains; for example, there is no trivial linear order over all possible color sensations. This paper discusses key developments in the (...) history of psychophysical methods for measuring color experience. In particular, a clear distinction between topological and metrical structure allowed Helmholtz to use opponent colors as a standard for measuring the gross structure of color space. Once this gross structure had been determined, lines through color space could be defined and Fechner-style methods employed for determining local structure. Extensions of these methods due to Wright, MacAdam, and others provide detailed evidence for the degree of agreement in the qualities of color experience across individuals. This allows a precise statement of the evidential support for the claim that your experience of color and mine are the same. (shrink)

A clinical ethics fit for the Anthropocene—our current geological era in which human activity is the primary determinant of environmental change—needs to incorporate environmental ethics to be fit for clinical practice. Conservationist Aldo Leopold’s essay ‘The Land Ethic’ is probably the most widely-cited source in environmental philosophy; but Leopold’s work, and environmental ethics generally, has made little impression on clinical ethics. The Land Ethic holds that “A thing is right when it tends to preserve the integrity, stability, and beauty of (...) the biotic community. It is wrong when it tends otherwise.” I argue that a Land Ethic helps to re-frame problems in clinical ethics that more common philosophical approaches struggle to handle, and that it can be incorporated into clinical ethics without succumbing to “environmental fascism”. I motivate viewing problems in clinical ethics from the perspective of the ‘integrity of the biotic community’, then illustrate how this perspective can offer guidance where more commonly-invoked theories—such as consequentialism and Kantian-inspired approaches—struggle, using antimicrobial resistance in nosocomial infection as a case study. The Land Ethic equips us to understand human values as arising within and inseparable from a social-ecological context, and by treating communities as valuable in themselves rather than just through the aggregate welfare of their individual participants, we can avoid problems with the ‘repugnant conclusion’ and utility monster that plague utilitarian accounts. (shrink)

This paper argues that the new science of positive psychology is founded on a whole series of fallacious arguments; these involve circular reasoning, tautology, failure to clearly define or properly apply terms, the identification of causal relations where none exist, and unjustified generalisation. Instead of demonstrating that positive attitudes explain achievement, success, well-being and happiness, positive psychology merely associates mental health with a particular personality type: a cheerful, outgoing, goal-driven, status-seeking extravert.

This paper outlines and defends a novel position in the color realism debate, namely structural realism. This position is novel in that it dissociates the veridicality of color attributions from the claim that physical objects are themselves colored. Thus, it is realist about color in both the semantic and epistemic senses, but not the ontic sense. The generality of this position is demonstrated by applying it to other “secondary qualities,” including heat, musical pitch, and odor. The basic argument proceeds by (...) analogy with the theory of measurement. I argue that perceptual experiences are analogous to numerical structures in that they are suitable for measurement, but only report measured values after they have been linked to states of a measurement device via calibration. Since the calibration of our sensory apparatus varies with context, it is inappropriate to identify specific experiences with specific properties in the world. Rather, it is structural relations between possible experiences which represent relations between possible external properties, and it is at the level of these structural relationships that veridicality is appropriately assessed. (shrink)