This paper argues that a certain type of self-referential sentence falsifies the widespread assumption that a declarative sentence's meaning is identical to its truth condition. It then argues that this problem cannot be assimilated to certain other problems that the assumption in question is independently known to face.

Timothy Williamson has argued that, unless the speech act of assertion were supposed to be governed by his so-called Knowledge Rule, one could not explain why sentences of the form "A and I do not know that A" are unassertable. This paper advances three objections against that argument, of which the first two aim to show that, even assuming that Williamson's explanandum has been properly circumscribed, his explanation would not be correct, and the third aims to show that his explanandum (...) has not been properly circumscribed. (shrink)

An anti-dispositionalist interpretation of grammatical knowledge would maintain that such knowledge exists whether or not it can be behaviourally manifested; a dispositionalist interpretation, on the other hand, would identify that knowledge with the in principle possibility of certain behavioural manifestations. The purpose of this paper is to present a preliminary case for the dispositionalist interpretation by accomplishing two complementary tasks: first, rejecting a prominent argument against the dispositionalist interpretation; second, advancing an original argument against the anti-dispositionalist interpretation. Both tasks involve (...) rebuttals of certain key theses associated with Chomskyan grammatical metatheory, and therefore, provide new opportunities for assessing its viability. -/- . (shrink)

The analysis of mixed quotation proposed in Cappelen & Lepore (1997), purportedly as a development of Davidson's accounts of direct and of indirect quotation, is critically examined. It is argued that the analysis fails to specify either necessary or sufficient conditions on mixed quotation, and that the way it has been defended by its proponents makes its alleged Davidsonian parentage questionable.

This paper argues that Michael Dummett's proposed distinction between a declarative sentence's "assertoric content" and "ingredient sense" is not in fact supported by what Dummett presents as paradigmatic evidence in its support.

This paper argues that the obvious validity of certain inferences involving indirect speech reports as premises and truth or falsity ascriptions as conclusions is incompatible with Davidson's so-called "paratactic" analysis of the logical form of indirect discourse. Besides disqualifying that analysis, this problem is also claimed to indicate that the analysis is doubly in tension with Davidson's metasemantic views. Specifically, it can be reconciled neither with one of Davidson's key assumptions regarding the adequacy of the kind of semantic theory he (...) recommends nor with one of his key assumptions regarding the inadequacy of a kind of semantic theory he rejects. (shrink)

Interpreting J.L. Austin: Critical Essays Edited by TsohatzidisSavas L.Oxford University Press, 2018. xii + 238 pp.

I defend a one category ontology: an ontology that denies that we need more than one fundamental category to support the ontological structure of the world. Categorical fundamentality is understood in terms of the metaphysically prior, as that in which everything else in the world consists. One category ontologies are deeply appealing, because their ontological simplicity gives them an unmatched elegance and spareness. I’m a fan of a one category ontology that collapses the distinction between particular and property, replacing it (...) with a single fundamental category of intrinsic characters or qualities. We may describe the qualities as qualitative charactersor as modes, perhaps on the model of Aristotelian qualitative (nonsubstantial) kinds, and I will use the term “properties” interchangeably with “qualities”. The qualities are repeatable and reasonably sparse, although, as I discuss in section 2.6, there are empirical reasons that may suggest, depending on one’s preferred fundamental physical theory, that they include irreducibly intensive qualities. There are no uninstantiated qualities. I also assume that the fundamental qualitative natures are intrinsic, although physics may ultimately suggest that some of them are extrinsic. On my view, matter, concrete objects, abstract objects, and perhaps even spacetime are constructed from mereological fusions of qualities, so the world is simply a vast mixture of qualities, including polyadic properties (i.e., relations). This means that everything there is, including concrete objects like persons or stars, is a quality, a qualitative fusion, or a portion of the extended qualitative fusion that is the worldwhole. I call my view mereological bundle theory. (shrink)

The genetic modification of pigs as a source of transplantable organs is one of several possible solutions to the chronic organ shortage. This paper describes existing ethical tensions in xenotransplantation (XTx) that argue against pursuing it. Recommendations for lifelong infectious disease surveillance and notification of close contacts of recipients are in tension with the rights of human research subjects. Parental/guardian consent for pediatric xenograft recipients is in tension with a child’s right to an open future. Individual consent to transplant is (...) in tension with public health threats that include zoonotic diseases. XTx amplifies concerns about justice in organ transplantation and could exacerbate existing inequities. The prevention of infectious disease in source animals is in tension with the best practices of animal care and animal welfare, requiring isolation, ethologically inappropriate housing, and invasive reproductive procedures that would severely impact the well-being of intelligent social creatures like pigs. (shrink)

Rationality requires us to respond to apparent normative reasons. Given the independence of appearance and reality, why think that apparent normative reasons necessarily provide real normative reasons? And if they do not, why think that mistakes of rationality are necessarily real mistakes? This paper gives a novel answer to these questions. I argue first that in the moral domain, there are objective duties of respect that we violate whenever we do what appears to violate our first-order duties. The existence of (...) these duties of respect, I argue, ensures that apparent moral reasons are exceptions to the independence of appearance and reality. I then extend these arguments to the domain of overall reason. Just as there are objective duties of respect for moral reasons that explain moral blameworthiness, so there are objective duties of respect for reasons that explain blameworthiness in the court of overall reason. The existence of these duties ensures that apparent reasons are exceptions to the independence of appearance and reality. (shrink)

Adequate epistemic justification is best conceived as the appearance, over time, of knowledge to the subject. ‘Appearance’ is intended literally, not as a synonym for belief. It is argued through consideration of examples that this account gets the extension of ‘adequately justified belief’ at least roughly correct. A more theoretical reason is then offered to regard justification as the appearance of knowledge: If we have a knowledge norm for assertion, we do our best to comply with this norm when we (...) express as assertions only beliefs that appear to us to be knowledge. If we are doing our best, there is little point in further sanctions. So a norm of knowledge for assertion would lead to a secondary norm of justified belief as the appearance of knowledge, marking a point at which our assertions may be corrected but should not be blamed. (shrink)

In three experiments we studied lay observers’ attributions of responsibility for an antisocial act (homicide). We systematically varied both the degree to which the action was coerced by external circumstances and the degree to which the actor endorsed and accepted ownership of the act, a psychological state that philosophers have termed ‘identification’. Our findings with respect to identification were highly consistent. The more an actor was identified with an action, the more likely observers were to assign responsibility to the actor, (...) even when the action was performed under constraints so powerful that no other behavioral option was available. Our findings indicate that social cognition involving assignment of responsibility for an action is a more complex process than previous research has indicated. It would appear that laypersons’ judgments of moral responsibility may, in some circumstances, accord with philosophical views in which freedom and determinism are regarded to be compatible. (shrink)

Despite the recent backlash against epistemic consequentialism, an explicit systematic alternative has yet to emerge. This paper articulates and defends a novel alternative, Epistemic Kantianism, which rests on a requirement of respect for the truth. §1 tackles some preliminaries concerning the proper formulation of the epistemic consequentialism / non-consequentialism divide, explains where Epistemic Kantianism falls in the dialectical landscape, and shows how it can capture what seems attractive about epistemic consequentialism while yielding predictions that are harder for the latter to (...) secure in a principled way. §2 presents Epistemic Kantianism. §3 argues that it is uniquely poised to satisfy the desiderata set out in §1 on an ideal theory of epistemic justification. §4 gives three further arguments, suggesting that it (i) best explains the objective normative significance of the subject's perspective in epistemology, (ii) follows from the kind of axiology needed to solve the swamping problem together with modest assumptions about the relation between the evaluative and the deontic, and (iii) illuminates certain asymmetries in epistemic value and obligation. §5 takes stock and reassesses the score in the debate. (shrink)

In Embracing Paradox, Evolving Language, L.E. Maroski proposes that humanity is poised on the cusp of a transformation of consciousness that requires not only a shift in values and perspectives, but also a shift in a basic technology we take for granted—language. Because we use language to create social structures and institutions, including education, governance, and our most intimate relationships, the structure of our language contributes to the way we structure those creations. Maroski questions the cultural assumptions that are built (...) into the structure of language—primarily English—and invites the reader to imagine and ultimately to help develop novel structures of language that arise from different assumptions. To do so, she shows how we can draw inspiration from paradoxical topological forms, such as the Möbius strip and Klein bottle, as they embody both unity and duality/multiplicity. By seeing our reality not simply in terms of either/or but also in terms of both (many)/and, perhaps our feelings of fragmentation and the stultifying oppositions that have polarized society can transform into appreciation for the wholeness of all existence. (shrink)

When medical assistance in dying (MAiD) was legalized in Canada in June 2016, the question of allowing decisionally capable persons to make advance requests in anticipation of later incapacity was reserved for further consideration during the mandatory parliamentary review originally scheduled to begin in June 2020 (but since delayed by COVID-19). In its current form the legislation does not permit such requests, since it stipulates that at the time at which the procedure is to be administered the patient must give (...) “express consent” to receiving it. Since express consent presupposes decisional capacity, this requirement rules out administering MAiD to a patient who has lost capacity. Amendments to the legislation passed by Parliament in March 2021 open the door slightly by allowing advance requests by patients after they have been approved for MAiD, if they fear losing capacity before the procedure can be administered. But this provision would apply only to patients whose natural death was deemed to be “reasonably foreseeable”, and would continue to exclude (a) requests made after diagnosis of a “grievous and irremediable medical condition” but in advance of approval for MAiD, and (b) requests made before such a diagnosis. My aim in this paper is twofold: to explore the ethical and legal issues concerning advance requests for MAiD, and to argue for expanding provision for such requests to include both of these further scenarios. (shrink)

Hate speech, understood broadly, is any form of expression intended to arouse hatred or contempt toward members of a particular social group. When university administrators have reason to believe that a planned speaking event on campus may feature hate speech (at least in the eyes of some), how should they respond? In this paper I address this question as it arises for Canadian universities. I argue that, where the regulation of campus speech is concerned, the right course of action for (...) university administrators is nearly always to do absolutely nothing. They will have reason to become actively involved only in order to ensure that a speaking event proceeds safely, or when it threatens to disrupt the functioning of the university, or when it is itself threatened with disruption by protesting groups. In those instances the justification for intervention will be to protect and facilitate speech, not to shut it down. (shrink)

There is more than one way to say that composition is identity. Yi has distinguished the Weak Composition thesis from the Strong Composition thesis and attributed the former to David Lewis while noting that Lewis associates something like the latter with me. Weak Composition is the thesis that the relation between the parts collectively and their whole is closely analogous to identity. Strong Composition is the thesis that the relation between the parts collectively and their whole is identity. Yi is (...) right that Strong Composition does not fully reflect my view. We must recognize further what, borrowing Lewis's characterization, could be called the "stronger, and stranger" Composition thesis, or what I'll call the Stronger Composition thesis for short. On Strong Composition, it is only collectively that the parts are identical with the whole. On Stronger Composition, they are individually identical with it as well. I will explain and motivate this thesis. (shrink)

Scepticism about ought simpliciter is the view that there is no such thing as what one ought simpliciter to do. Instead, practical deliberation is governed by a plurality of normative standpoints, each authoritative from their own perspective but none authoritative simpliciter. This paper aims to resist such scepticism. After setting out the challenge in general terms, I argue that scepticism can be resisted by rejecting a key assumption in the sceptic’s argument. This is the assumption that standpoint-relative ought judgments bring (...) with them a commitment to act in accordance with those judgments. Instead, I propose an alternative account of our normative concepts according to which only ought simpliciter judgments commit one to acting in accordance with those judgments. In addition to answering the sceptical challenge, the proposal offers an independently motivated account of what makes a concept normatively authoritative. (shrink)

This article is a feminist intervention into the ways that disability is researched and represented in philosophy at present. Nevertheless, some of the claims that I make over the course of the article are also pertinent to the marginalization in philosophy of other areas of inquiry, including philosophy of race, feminist philosophy more broadly, indigenous philosophies, and LGBTQI philosophy. Although the discipline of philosophy largely continues to operate under the guise of neutrality, rationality, and objectivity, the institutionalized structure of the (...) discipline implicitly and explicitly promotes certain ontologies, epistemologies, and methodologies as bona fide philosophy, while casting the ontologies, epistemologies, and methodologies of marginalized philosophies as mere simulacra of allegedly fundamental ways of knowing and doing philosophy and thus rendering these marginalized philosophies more or less expendable. This article is designed to show that legitimized philosophical discourses are vital mechanisms in the problematization of disability. (shrink)

The major competing statistical paradigms share a common remarkable but unremarked thread: in many of their inferential applications, different probability interpretations are combined. How this plays out in different theories of inference depends on the type of question asked. We distinguish four question types: confirmation, evidence, decision, and prediction. We show that Bayesian confirmation theory mixes what are intuitively “subjective” and “objective” interpretations of probability, whereas the likelihood-based account of evidence melds three conceptions of what constitutes an “objective” probability.

The familiar Cartesian sceptical arguments all involve an explanation of our experiences. An account of the persuasive power of the sceptical arguments should explain why this is so. This supports a diagnosis of the error in Cartesian sceptical arguments according to which they mislead us into regarding our perceptual beliefs as if they were justified as inferences to the best explanation. I argue that they have instead a perceptual justification that does not involve inference to the best explanation and that (...) should not be put in doubt by the sceptical hypotheses. (shrink)

This article looks at Kant's idea of the highest good and does so in the context of a folk tale from the anonymous collection of the Brother's Grimm entitled "the White Snake." The tale is analyzed form a structuralist perspective as an exemplar of suffering, struggling humanity and the striving for ethical completeness.

This paper examines the integration and unification of the philosophy and psychology of well-being. For the most part, these disciplines investigate well-being without reference to each other. In recent years, however, with the maturing of each discipline, there have been a growing number of calls to integrate the two. While such calls are welcome, what it means to integrate well-being philosophy and psychology can vary greatly depending on one’s theoretical and practical ends. The aim of this paper is to provide (...) a novel conceptual framework for thinking about integrating well-being philosophy and psychology that systematically categorizes different kinds of integration projects. We divide existing attempts in the literature into three broad categories according to the perspective from which the integration takes place: (1) top-down meta-theoretical unification; (2) psychological integration within philosophy; and (3) philosophical integration within psychology. These categories are then broken down into various further subcategories. Our aim in providing this framework is both to facilitate the assessment and comparison of existing integration attempts and to provide a roadmap for future integration attempts. For each category, we discuss one or two representative examples of the approaches. By doing so, we hope to generate interest in the wide variety of existing integration projects, as well as to generate discussion concerning the benefits and pitfalls of different approaches. (shrink)

How is it possible for David Hume to be both withering skeptic and constructive theorist? I recommend an answer like the Pyrrhonian answer to the question how it is possible to suspend all judgment yet engage in active daily life. Sextus Empiricus distinguishes two kinds of assent: one suspended across the board and one involved with daily living. The first is an act of will based on appreciation of reasons; the second is a causal effect of appearances. Hume makes the (...) same distinction, only he extends the sort of assent involved in daily life to theoretical matters as well. He is a skeptic both in finding no reason to grant the first sort of assent and in being subject to the second. (shrink)

Hume's Treatise arguments concerning space, time, and geometry, especially ones involving his denial of infinite divisibility; have suffered harsh criticism. I show that in the section "Of the ideas of space and time," Hume gives important characterizations of his skeptical approach, in some respects Pyrrhonian, that will be developed in the rest of the Treatise. When that approach is better understood, the force of Hume's arguments can be appreciated, and the influential criticisms of them can be seen to miss the (...) mark. (shrink)

I provide an overview of the differences between psychological pessimism and philosophical pessimism. Based on a historic reading of the original 19th century German pessimist philosophers I provide a definition of what I call "transcendental pessimism" and sketch some of the reasons why it is different from other pessimist perspectives such as anti-natalism.

If you utter sentence (1) ‘Obama was born in 1961’ now, you say something true about the past. Since the past will always be such that the year 1961 has the property of being a time in which Obama was born, it seems impossible that could ever be false in a future context of utterance. We shall consider the case of a sentence about the past exactly like (1), but which was true when uttered a few years ago and is (...) no longer true now. On this basis, we shall conclude that the past has changed. (shrink)

We develop a structure theory for nilpotent symplectic alternating algebras.

Hume discusses the distinction of reason to explain how we distinguish things inseparable, and so identical, e.g., the color and figure of a white globe. He says we note the respect in which the globe is similar to a white cube and dissimilar to a black sphere, and the respect in which it is dissimilar to the first and similar to the second. Unfortunately, Hume takes these differing respects of resemblance to be identical with the white globe itself. Contradiction results, (...) undermining his theory of abstraction. The way out is apparently to admit an intrinsic complexity in even simple things. (shrink)

The United States carceral system, as currently designed and implemented, is widely considered to be an immoral and inhumane system of criminal punishment. There are a number of pressing issues related to this topic, but in this essay, I will focus upon the problem of prison violence. Inadequate supervision has resulted in unsafe prison conditions where inmates are regularly threatened with rape, assault, and other forms of physical violence. Such callous disregard and exposure to unreasonable risk constitutes a severe violation (...) of the rights of prisoners by the state. While there have been numerous legal, political, and activist efforts to draw attention to this issue—with the goal of reforming and making prisons safer—my goal is different. I argue that inmates who are victims of prison violence should have their sentences automatically reduced. Two distinct arguments are advanced in support of this claim. First, I argue that acts of prison violence are a sort of state-mediated harm which can thus be appropriately described as punishment-constituting. Second, and more straightforwardly, I argue that the compensation owed to prisoners who are victims of prison violence may naturally take the form of a reduced sentence. (shrink)

Empirical research has distinguished moral judgments that focus on an act and the actor’s intention or mental states, and those that focus on results of an action and then seek a causal actor. Studies indicate these two types of judgments may result from a “dual-process system” of moral judgment (Cushman 2008, Kneer and Machery 2019). Results-oriented judgements may be subject to the problem of resultant moral luck because different results can arise from the same action and intention. While some argue (...) luck should not bear on persons’ culpability, Victor Kumar has argued that the tendency to hold unlucky agents responsible for harm is justified by consequentialist aims of punishment (Kumar 2019). In contrast, judgments that focus on acts and intentions may be primarily retributive. Kumar claims that judgments focused on results track external, public harm because this increases the reliability of punishment and better achieves instrumental aims, including deterrent effect. In this chapter I examine rape cases using Kumar’s theory of punishment. Rape involves outcomes that are not publicly available. If judgments of punishment depend on outcomes, then we would expect such judgments to be less stable for those instances of wrongdoing that lack public outcomes such as rape, because such judgments would rely instead on often biased and unreliable inferential processes to establish the presence of mental states, which are essentially private. In this way Kumar’s theory actually predicts the way in which we see criminal justice institutions fail with regard to arrest, prosecution, and punishment related to rape; and we might expect similar failures for other crimes that lack publicly available results. In sum, a fundamental problem with institutionalized punishment centered upon results may be that some crimes sit within a moral blindspot. (shrink)

In this paper and its sequel we continue our study of nilpotent symplectic alternating algebras. In particular we give a full classification of such algebras of dimension 10 over any field. It is known that symplectic alternating algebras over GF(3) correspond to a special rich class C of 2-Engel 3-groups of exponent 27 and under this correspondence we will see that the nilpotent algebras correspond to a subclass of C that are those groups in C that have an extra group (...) theoretical property that we refer to as being powerfully nilpotent and can be described also in the context of p-groups where p is an arbitrary prime. (shrink)

It seems natural to choose whether to have a child by reflecting on what it would be like to actually have a child. I argue that this natural approach fails. If you choose to become a parent, and your choice is based on projections about what you think it would be like for you to have a child, your choice is not rational. If you choose to remain childless, and your choice is based upon projections about what you think it (...) would be like for you to have a child, your choice is not rational. This suggests we should reject our ordinary conception of how to make this life-changing decision, and raises general questions about how to rationally approach important life choices. (shrink)

The question I want to explore is whether experience supports an antireductionist ontology of time, that is, whether we should take it to support an ontology that includes a primitive, monadic property of nowness responsible for the special feel of events in the present, and a relation of passage that events instantiate in virtue of literally passing from the future, to the present, and then into the past.

This study investigated the positive and negative experiences of English instructors during the COVID-19 pandemic in Philippine context. Specifically, this study sought to reveal their thoughts, insights, and attitudes through the embodied metaphors evident in their narratives. Specifically, this study aimed to: identify the positive and negative experiences of English instructors thematically; determine the embodied metaphors used to highlight the positive and negative experiences of the English instructors; and ascertain the views of English instructors towards their teaching experiences in the (...) time of the pandemic. This study utilized written narratives and the responses were analyzed through thematic analysis, content analysis, and Likert scale score. Findings reveal three themes for positive experiences: optimization of skills and abilities; development of character; and increased opportunities. On the other hand, two themes were found for the negative experiences: lack of resources and difficulty in the teaching-learning process. Furthermore, the participants’ narratives contained 16 metaphors: jungle, force, game-changer, underprivileged, stones, heart, fumes, technology, browser, sinkhole, challenge, myth, episode, taboo, thing, and clam. Moreover, independent learning and flexible learning were mentioned to be the benefits of distance education, whereas the use of technology, learning quality, and learning environment were the problems encountered. However, positive, partially positive, and negative views were found to have described the instructors’ teaching experiences during the pandemic. In general, it is concluded that despite the hurdles encountered during the pandemic, instructors were still able to overcome the challenges and demands of the new learning environment. (shrink)

Anders als oft behauptet wird, hat Goethe in seinen optischen Experimenten sehr präzise nachgemessen. So stellt seine fünfte Tafel eine ganze experimentelle Serie geometrisch akkurat dar, und zwar in einem cartesischen Koordinaten-System, dessen Maßstab sich recht genau rekontruieren lässt. Indem Goethe seine Versuchsergebnisse idealisierte und von störenden Nebeneffekten bereinigte, folgte er einer gängigen Praxis damaliger und heutiger Naturwissenschaft. Er idealisierte anders als Newton, verstieß dadurch aber nicht gegen die Regeln der Experimentierkunst.

Analytische Sätze, die kraft Definition wahr sein sollen, schaden der Naturwissenschaft oder trivialisieren ihren Fortschritt: So lautet einer der Kritikpunkte, die Quine in seinem Feldzug gegen die Unterscheidung zwischen synthetischen und analytischen Sätzen vorgebracht hat. Sie schaden, so Quine, weil sie nicht revidiert werden dürfen und damit die Wahlfreiheit beim Theorienwandel über Gebühr einschränken. (Hätte sich z.B. Einstein vom analytischen Status der newtonischen Impulsdefinition beeindrucken lassen, so hätte er die Relativitätstheorie nicht formulieren können). Oder sie trivialisieren den Fortschritt, weil sich (...) durch Preisgabe analytischer Sätze bloß die Sprache ändert – und wie soll uns eine Änderung der Begriffe vorwärtsbringen? Um dieser Herausforderung zu begegnen, müssen wir Sprach- und Theorienwandel auseinanderdividieren. Im Falle einer wissenschaftlichen Revolution findet beides gleichzeitig statt. Trotzdem kann man die Beobachtungskonsequenzen der neuen Theorie (mithilfe des Ramsey-Satzes) mit denen der alten vergleichen; und mithilfe des Carnap-Satzes kann man den jeweiligen analytischen Anteil der beiden Theorien extrahieren. Es war Carnaps Fehler, diesen Schachzug zur Definition des Begriffs vom analytischen Satz heranzuziehen. Umgekehrt wird ein Schuh draus: Mithilfe einer holismustauglichen Definition von "analytisch" lässt sich zeigen, dass die Carnap-Sätze analytisch sind. Hier die Grundidee der fraglichen Definition: Ein Satz ist analytisch, wenn sich der empirische Gehalt keiner Gesamttheorie dadurch ändert, dass man ihr den Satz einpflanzt. (shrink)

Philosophers of experiment have acknowledged that experiments are often more than mere hypothesis-tests, once thought to be an experiment's exclusive calling. Drawing on examples from contemporary biology, I make an additional amendment to our understanding of experiment by examining the way that `wide' instrumentation can, for reasons of efficiency, lead scientists away from traditional hypothesis-directed methods of experimentation and towards exploratory methods.

Als Goethe in seiner monumentalen Farbenlehre (1810) versuchte, Newtons Theorie des Lichts und der Farben anzugreifen, setzte er eine Methode ein, die er als Vermannigfachung der Erfahrungen bezeichnete: Er variierte verschiedene Parameter der newtonischen Experimente, um neuen Spielraum für Alternativen zur Theorie Newtons zu gewinnen. Dabei erzielte er durchaus Erfolge. U.a. entdeckte er das Komplement zum newtonischen Spektrum (das aussieht wie dessen Farbnegativ und durch Vertauschung der Rollen von Licht und Finsternis entsteht). Ingo Nussbaumer hat Goethes Methode kongenial fortgeführt. Dabei (...) hat er sechs weitere Farbspektren entdeckt. Sie entstehen, wenn man anstelle des Hell/Dunkel-Kontrasts (in Newtons und Goethes Experimenten) mit Paaren von Komplementärfarben arbeitet. Die neuen Farbspektren sehen genauso differenziert aus wie Newtons und Goethes Spektrum; doch anders als diese enthalten sie die unbunten "Farben" Schwarz und Weiss. Die vielfältigen Ordnungsbeziehungen und Symmetrien, die Ingo Nussbaumer in der Farbenwelt der insgesamt acht Spektren ausgemacht hat, verhelfen uns vielleicht zu einem tieferen Verständnis der Prinzipien menschlicher Farbwahrnehmung. Abgesehen davon haben sie einen hohen ästhetischen Reiz. Und sie regen dazu an, über kontrafaktische Verläufe der Wissenschaftsgeschichte zu spekulieren: Wie gut hätte sich Newtons Theorie des Lichts und der Farben in den Jahren nach ihrer Veröffentlichung (1672) durchsetzen können, wenn damals das newtonische Spektrum zusammen mit seinen sieben Gegenstücken bekannt geworden und daher nicht das einzige Spektrum gewesen wäre, mit dem die Theorie hätte fertigwerden müssen? (shrink)

Spätestens seit es in der Kunst außer Mode kam, das Wort Schönheit einzusetzen, begannen die Physiker, ihre Arbeitsergebnisse schön zu nennen. Sie sagen z.B.: Wenn eine Theorie schön ist, so spricht das für die Wahrheit der Theorie. Und sie streben nach schönen Experimenten. Was ist damit gemeint? Definieren lässt sich dieser Begriff genauso wenig wie für Kunstwerke. Daher erläutere ich ihn anhand optischer Experimente Newtons, Goethes und aus neuerer Zeit. Man kann z.B. zeigen, dass die Weißsynthese des Desaguliers schöner ist (...) als Newtons Weißsynthese und dass den vielfältigen Farbsynthesen des Wiener Malers und Farbexperimentators Ingo Nussbaumer noch höherer ästhetischer Wert zukommt. Aus alledem ergibt sich eine tentative Liste von Kriterien (die sich freilich nicht in einen idiotensicheren Bewertungs-Algorithmus einspeisen lassen, sondern Urteilskraft verlangen): Sauberkeit, Einfachheit, intellektuelle Klarheit und Symmetrie sind Merkmale schöner Experimente – und diese Merkmale sind z.B. auch bei der ästhetischen Beurteilung mancher (wenn auch nicht aller) Musikstücke relevant. Daher liegt es nahe zu vermuten, dass sich unsere ästhetische Urteilskraft – in so verschiedenen Bereichen wie Optik und Musik – verwandter begrifflicher Werkzeuge bedient. (shrink)

Newton fächert einen weißen Lichtstrahl durch prismatische Brechung (Refraktion) auf und entdeckt dadurch sein Vollspektrum, das die größte Farbenvielfalt zeigt und aus Lichtstrahlen unterschiedlicher Refrangibilität besteht (1672). Laut Newtons Theorie müsste sich die Farbvielfalt seines Vollspektrums steigern lassen, wenn man den Auffangschirm immer weiter vom brechenden Prisma entfernt; denn dadurch müssten zuvor noch vermischte Lichtbündel ähnlicher Farbe schließlich doch auseinanderstreben. Diese Prognose ist empirisch falsch, wie Goethe in seiner Farbenlehre (1810) herausstreicht: Das Endspektrum enthält weniger Farben, insbesondere fehlt dort das (...) Gelb. Das ist eine Anomalie (à la Kuhn) der newtonischen Theorie. Wie lässt sich diese Anomalie erklären? Der Gelbverlust im Endspektrum muss irgendetwas mit der Licht- und Farbempfindlichkeit des menschlichen Auges zu tun haben. Aber was? Der Bezold/Brücke-Effekt bietet offenbar keine befriedigende Erklärung des Phänomens, wie ich mit Matthias Rangs experimenteller Hilfe empirisch zeige. Ein zweiter Erklärungsansatz beruft sich auf die rot/grüne spektrale Umgebung, die das Gelb offenbar in den Hintergrund treten lässt. Die Farbwahrnehmung einer farbigen Figur hat ja immer auch mit der Umgebungsfarbe zu tun, wie zum Beispiel beim Simultankontrast. Das zeigt sich im Experiment: Man kann das Gelb im Endspektrum zurückgewinnen, wenn man die anderen Farben des Spektrums abdeckt. Woran das wiederum liegt, ist bis heute ungeklärt. Es lässt sich jedenfalls nicht als Spezialfall des Simultankontrasts verstehen. (shrink)

(2002). Phantasy and Wish: A Proper Function Account for Human A-Rational Primary Process Mediated Mentation. Australasian Journal of Philosophy: Vol. 80, No. 1, pp. 1-16.