In his unpublished 1979 Lectures on the Philosophy of Mind, Saul Kripke offers a knowledge argument against materialism focusing on deaf people who lack knowledge of auditory experience. Kripke's argument is a precursor of Frank Jackson's better‐known knowledge argument against materialism (1982). The paper sets out Kripke's argument, brings out its interest and philosophical importance, and explores some similarities and differences between Kripke's knowledge argument and Jackson's.

Frank Jackson's knowledge argument imagines a super-smart scientist, Mary, forced to investigate the mysteries of human colour vision using only black and white resources. Can she work out what it is like to see red from brain-science and physics alone? The argument says no: Mary will only really learn what red looks like when she actually sees it. Something is therefore missing from the science of the mind, and from the 'physicalist' picture of the world based on (...) science. This powerful and controversial argument remains as pivotal as when it was first created in 1982, and this volume provides a thorough and incisive examination of its relevance in philosophy of mind today. The cutting-edge essays featured here break new ground in the debate, and also comprehensively set out the developments in the story of the knowledge argument so far, tracing its impact, past, present, and future. (shrink)

The knowledge argument is something that is both an ideal for philosophy and yet surprisingly rare: a simple, valid argument for an interesting and important conclusion, with plausible premises. From a compelling thought-experiment and a few apparently innocuous assumptions, the argument seems to give us the conclusion, a priori, that physicalism is false. Given the apparent power of this apparently simple argument, it is not surprising that philosophers have worried over the argument and its (...) proper diagnosis: physicalists have disputed its validity, or soundness or both; in response, non-physicalists have attempted to reformulate the argument to show its real anti-physicalist lesson. (shrink)

This book defends Frank Jackson’s knowledge argument against physicalism. According to physicalism, consciousness is a physical phenomenon. The knowledge argument stars Mary, who learns all objective, physical information through black-and-white media and yet acquires new information when she first sees colors for herself: information about what it is like to see in color. Based partly on that case, Jackson concludes that not all information is physical. The book argues that the knowledge argument succeeds in (...) refuting all standard versions of physicalism: versions on which consciousness is grounded by what objective science reveals. It also argues that given further, plausible assumptions, the knowledge argument leads to Russellian monism, on which there are intrinsic properties that both constitute consciousness and underlie properties physics describes, such as mass and charge. It explains how the knowledge argument establishes those two conclusions and defends the argument against numerous objections. (shrink)

Frank Jackson endorses epiphenomenalism because he thinks that his knowledge argument undermines physicalism. One of the most interesting criticisms of Jackson's position is what I call the 'inconsistency objection'. The inconsistency objection says that Jackson's position is untenable because epiphenomenalism undermines the knowledge argument. The inconsistency objection has been defended by various philosophers independently, including Michael Watkins, Fredrik Stjernberg, and Neil Campbell. Surprisingly enough, while Jackson himself admits explicitly that the inconsistency objection is 'the most powerful (...) reply to the knowledge argument' he knows of, it has never been discussed critically. The aim of this paper is to evaluate the objection and to identify and consider its implications. The objection is alleged to be based on a causal theory of knowledte. I argue that the objection fails by showing that any causal theory of knowledge is such that it is either false or does not support the inconsistency objection. In order to defend my argument, I offer a hypothesis concerning phenomenal knowledge. (shrink)

The knowledge argument aims to refute physicalism, the doctrine that the world is entirely physical. Physicalism is widely accepted in contemporary philosophy. But some doubt that phenomenal consciousness.

Someone who knew everything about the world’s physical nature could, apparently, suffer from ignorance about various aspects of conscious experience. Someone who knew everything about the world’s physical and mental nature could, apparently, suffer from moral ignorance. Does it follow that there are ways the world is, over and above the way it is physically or psychophysically? This paper defends a negative answer, based on a distinction between knowing the fact that p and knowing that p. This distinction is made (...) intelligible by reference to criterial connections between the possession of moral or phenomenal knowledge, and the satisfaction of cognitively neutral conditions of desire and experiential history. The existence of such connections in the moral case makes for an efficient dissolution of the so-called moral problem. (shrink)

Someday there will be no more articles written about the.

In this paper I argue that Frank Jackson.

The definitive statement of the Knowledge Argument was formulated by Frank Jackson, in a paper entitled “Epiphenomenal Qualia” that appeared in The Philosophical Quarterly in 1982. Arguments in the same spirit had appeared earlier (Broad 1925, Robinson 1982), but Jackson’s argument is most often compared with Thomas Nagel’s argument in “What is it Like to be a Bat?” (1974). Jackson, however, takes pains to distinguish his argument from Nagel’s. This entry will follow standard practice in (...) focusing on Jackson’s argument, though I will also describe the main points of alleged similarity and dissimilarity between these two arguments. (shrink)

Jackson’s formulation of the knowledge argument has had an inestimable influence on the discussion of consciousness and the apparent problem it presents for physicalism. A common objection to KA is the ‘ignorance objection’. According to this objection, our intuitions about Mary merely reflect our ignorance of physical facts that are integral to the explanation of phenomenal consciousness. Armed with the insights of a future science, Mary would actually be able to deduce what it’s like to see red. We (...) only have the intuition that Mary would learn something new because we don’t know what she knows. Those sympathetic to KA have brushed away the ignorance objection on the grounds that evstructuren though we don’t know what the future science of consciousness will reveal, we do know what kind of facts it will contain and know that these are the wrong kind of facts from which to deduce facts about phenomenal consciousness. In other words, they suggest that the insight that underwrites KA is ‘future-proof’: it is not the kind of insight that could be displaced by new scientific knowledge. I argue that this strategy for defending KA is dialectically problematic and reveals a fundamental limitation of the Mary thought experiment. (shrink)

The paper argues that Jackson's knowledge argument fails to undermine physicalist ontology. First, it is argued that, as this argument stands, it begs the question. Second, it is suggested that by supplementing the argument , this flaw can be remedied insofar as the argument is taken to be an argument against type-physicalism; however, this flaw cannot be remedied insofar as the argument is taken to be an argument against token-physicalism. The argument (...) cannot be supplemented so as to show that experiences have properties which are illegitimate from a physicalist perspective. (shrink)

There is widespread debate in contemporary philosophy of mind over the place of conscious experiences in the natural world – where the latter is taken to be broadly as described and explained by such sciences as physics, chemistry and biology; while conscious experiences encompass pains, bodily sensations, perceptions, feelings and moods. Many philosophers and scientists, who endorse physicalism or materialism, maintain that these mental states can be completely described and explained in natural terms. Frank Jackson’s knowledge argument is (...) a very influential objection to physicalism and, thus, to such an optimistic view about the scientific treatability of conscious experiences. According to the knowledge argument, we can know facts about our colour experiences that are not physical facts. -/- At the heart of this book lies a response to the knowledge argument that aims to defend a version of physicalism, that the author calls modest reductionism. This reply is based on the endorsement of the phenomenal concept strategy. According to this response, the knowledge argument cannot prove that there are non-physical facts. Instead, it can only show that there are ways of thinking about colour experiences that are based on phenomenal concepts that differ from scientific concepts. The author argues for the superiority of the phenomenal concept strategy over other influential physicalist replies to the knowledge argument. However, he criticises some recent physicalist accounts of phenomenal concepts and develops his own distinctive theory of these concepts. -/- . (shrink)

Epiphenomenalism => qualia don't cause beliefs => we don't know about qualia.

Frank Jackson first presented the Knowledge Argument in "Epiphenomenal Qualia" 1982). The KA is an argument against physicalism, the doctrine that everything is physical. The general thrust of the KA is that physicalism errs by misconstruing or denying the existence of the subjective features of experience. Physicalists have given numerous responses, and the debate continues about whether the KA ultimately succeeds in refuting any or all forms of physicalism. Jackson himself has recently.

This article presents the knowledge argument against physicalism and objections to it. The focus is on the ways responses to that argument have tried to account for phenomenal knowledge within a physicalist picture. Various ‘phenomenal concepts’ strategies are considered, along with recent arguments against them. Also considered are attempts to explain phenomenal knowledge in terms of indexical knowledge and in terms of acquaintance.

Recently a number of authors have responded to the knowl-edge argument by suggesting that Mary could learn about new physi-cal facts upon release (Flanagan, 1992; Mandik, 2001; Stoljar, 2001; Van Gulick, 1985). A key step in achieving this is a demonstration that there are facts that can be known via colour experience that cannot be learnt scientifically. In this paper I develop an account of scientific and visual knowledge on which there is a difference between the knowledge (...) provided by science and that provided by vision. (shrink)

The knowledge argument is an argument against physicalism that was first formulated by Frank Jackson in 1982. While Jackson no longer endorses it, it is still regarded as one of the most important arguments in the philosophy of mind. Physicalism is the metaphysical thesis that, roughly speaking, everything in this world—including tables, galaxies, cheese cakes, cars, atoms, and even our sensations— are ultimately physical. The knowledge argument attempts to undermine this thesis by appealing to the (...) following simple imaginary scenario: Mary is confined to a black-and-white room, is educated through black-and-white books and through lectures relayed on black-and white television. In this way she learns everything there is to know about the physical nature of the world. She knows all the physical facts about us and our environment, in a wide sense of ‘physical’ which includes everything in completed physics, chemistry, and neurophysiology, and all there is to know about the causal and relational facts consequent upon all this, including of course functional roles. (Jackson 1986, p. 291) The knowledge argument says that if physicalism is true, Mary knows everything in this world. However, it seems obvious that her knowledge is not yet complete. Suppose that.. (shrink)

The literature on the Knowledge Argument exhibits considerable confusion about the precise nature of the argument. I contend that a clarification of the essence of self-presenting properties provides an explanation of this confusion such that the confusion itself is evidence for dualism. I also claim that Mary gains six different sorts of knowledge after gaining sight, and I show how this claim provides a response to a physicalist undercutting defeater for the Knowledge Argument. I (...) try to show that this defeater is inadequate due to its failure to capture the epistemic richness of what happens to Mary. Finally, I indicate how my enriched version of the Knowledge Argument provides grounds for rejecting those varieties of physicalism that eschew a depiction of phenomenal propertiesas intrinsic attributes a subject exemplifies in favor of a view that treats them as functional roles a subject realizes. (shrink)

Materialism/physicalism that generally dominates in the contemporary analytic philosophy is challenged by fairly powerful anti-materialist arguments, notably the zombie argument (most influentially defended by David Chalmers) and the knowledge argument (the most widely discussed version of which was advanced and defended by Frank Jackson). These arguments highlight the explanatory gap from the physical (which, if materialism is true, should constitute everything that exists, including consciousness) to phenomenal mental states, the principal impossibility to explain the latter by the (...) former, and from this conclude that phenomenal consciousness is not physical, and so materialism is false. Materialist philosophers attempt to neutralize these arguments in several ways, the most influential of which is the strategy of phenomenal concepts. This article analyzes the main points of this debate with a focus on the knowledge argument, examines and responds to the main objections to the knowledge argument — that it should be mistaken because the alternative is epiphenomenalism, which is unacceptable; that no new knowledge but only new capacities and/or acquaintance are involved; that the knowledge is the same but in different forms; that the knowledge argument affects only type physicalism but not token physicalism. The case is made that psychophysical identities assumed by a posteriori physicalism are unexplainable in principle, and the postulation of brute unexplainable psychophysical identities glossed over by the strategy of phenomenal concepts amounts to dogmatic commitment (motivated by scientism) to a view despite its apparent falsity and its unintelligibility (the impossibility to explain how it can be true), made less unpalatable by offering an ad hoc theory about the mindbrain arrangement that makes us unable to see how the view can be true. As opposed to this, the position of the supporters of the knowledge argument and the zombie argument can be seen as guided by the principle of rational trust in obviousness and our capacities of judgement. (shrink)

According to Frank Jackson’s famous knowledge argument, Mary, a brilliant neuroscientist raised in a black and white room and bestowed with complete physical knowledge, cannot know certain truths about phenomenal experience. This claim about knowledge, in turn, implies that physicalism is false. I argue that the knowledge argument founders on a dilemma. Either (i) Mary cannot know the relevant experiential truths because of trivial obstacles that have no bearing on the truth of physicalism or (...) (ii) once the obstacles have been removed, Mary can know the relevant truths. If we give Mary the epistemological capabilities necessary to draw metaphysical conclusions about physicalism, she will, while trapped in the black and white room, be able to know every truth about phenomenal experience. (shrink)

The literature on the Knowledge Argument exhibits considerable confusion about the precise nature of the argument. I contend that a clarification of the essence of self-presenting properties provides an explanation of this confusion such that the confusion itself is evidence for dualism. I also claim that Mary gains six different sorts of knowledge after gaining sight, and I show how this claim provides a response to a physicalist undercutting defeater for the Knowledge Argument. I (...) try to show that this defeater is inadequate due to its failure to capture the epistemic richness of what happens to Mary. Finally, I indicate how my enriched version of the Knowledge Argument provides grounds for rejecting those varieties of physicalism that eschew a depiction of phenomenal propertiesas intrinsic attributes a subject exemplifies in favor of a view that treats them as functional roles a subject realizes. (shrink)

Frank Jackson’s knowledge argument is a very influential piece of reasoning that seeks to show that colour experiences constitute an insoluble problem for science. This argument is based on a thought experiment concerning Mary. She is a vision scientist who has complete scientific knowledge of colours and colour vision but has never had colour experiences. According to Jackson, upon seeing coloured objects, Mary acquires new knowledge that escapes her complete scientific knowledge. He concludes that (...) there are facts concerning colour experiences that scientific knowledge can neither describe nor explain. Specifically, these facts involve the occurrence of certain non-physical properties of experiences that he calls qualia. The present research considers whether a plausible formulation of the hypothesis that science can accommodate colour experiences is threatened by a version of the knowledge argument. The specific formulation of this problem has two motivations. Firstly, before investigating whether the knowledge argument raises a problem for the claim that science can account for colour experiences, we need a plausible formulation of this claim. I argue that the idea that science can accommodate colour experiences can be formulated as the modest reductionism hypothesis. Roughly speaking, this is the hypothesis that a science that can be explanatory interfaced with current physics of ordinary matter can account for conscious experiences. Secondly, an unintelligible premise figures in Jackson’s version the knowledge argument. Namely, it is assumed that Mary possesses a complete scientific knowledge. Nevertheless, the type of strategy involved in Jackson’s argument can be used to target modest reductionism. By considering contemporary psychophysics and neuroscience, I characterise Mary’s scientific knowledge. First, this characterisation is intelligible. In fact, it is elaborated on the basis of descriptions and explanations of colour experiences involved in current physics and neuroscience. Second, a supporter of modest reductionism can assume that the scientific knowledge ascribed to Mary might account for colour experiences. The main conclusion of the present research is that our version of the knowledge argument fails to threaten the modest reductionism hypothesis. In fact, I endorse what can be called the “two ways of thinking” reply to the knowledge argument. According to this response, the knowledge argument shows that there are different ways of thinking about colour experiences. One way of thinking is provided by scientific knowledge. The other way of thinking is provided by our ordinary conception of colour experiences. However, the existence of these two ways of thinking does not imply the existence of facts and properties that escape scientific knowledge. It might be the case that the ordinary way of thinking about colour experience concerns facts and properties described and explained by science. The principal conclusion of the research results from two investigations. The first line of research aims to reveal and evaluate the implicit assumptions that figure in the knowledge argument. The main body of the research is dedicated to this task. The principal result of this investigation is that the knowledge argument must rely on an account of introspective knowledge of colour experiences. I argue that an inferential model of introspection provides such account. On this model, Mary’s capacity to hold beliefs about her colour experiences when she sees coloured objects requires her mastery of colour concepts. The second main investigation seeks to justify the two ways of thinking strategy. As many opponents and supporters have recently started to realise, this strategy might be charged with being ad hoc. I offer a distinctive justification of this reply to the knowledge argument. Assuming the account of introspection mentioned above, the existence of visual recognitional colour concepts might justify this strategy. A person possesses these concepts when she is able to determine the colours of objects simply by having visual experiences. (shrink)

According to constitutive reductionism of Derek Parfit, a subject/person is not a separate existing being but his existence consists in the existence of a brain and body, performance of actions, thinking and occurrence of other physical and mental events. The identity of the subject in time comes down only to “Relation R” - mental consistency and/or connectedness – elicited by appropriate reasons. In the following article, I will try, relying on Frank Johnson's Knowledge Argument, to argue in favour (...) of the following conclusions: a person/subject is a “fact”irreducible to body and physical relations with the environment and a subject is something/”fact” non-reducible to mental occurrences. (shrink)

The paper discusses Crane’s analysis of Knowledge argument, and sets forth author’s disagreement with Crane. Surely Mary learns something new when she sees a color for the first time. The time for a physicalist to quarrel comes only when a qualia person says that this experience represents special phenomenal facts, and that such understanding should be identified with propositional knowledge. We should not confuse ‘having information’ with having the same information in the form of knowledge or (...) belief. Mary knows everything there is to know about color vision. The only thing she has not done is practically experience what it is like to see a color. Thus her knowledge gap is practical and not propositional. (shrink)

In this paper I discuss a variant of the knowledge argument which is based upon Frank Jackson's Mary thought experiment. Using this argument, Jackson tries to support the thesis that a purely physical – or, put generally: an objectively scientific – perspective upon the world excludes the important domain of `phenomenal' facts, which are only accessible introspectively. Martine Nida-Rümelinhas formulated the epistemological challenge behind the case of Mary especially clearly. I take her formulation of the problem as (...) a starting-point and present a solution which is based solely on the concepts of capability and of metalinguistic beliefs. References to epiphenomenal facts, phenomenal knowledge etc. will be avoided completely. I specify my proposal against the backdrop of Burge's critical reflections about metalinguistic reinterpretation of expressions of belief and the externalist thesis held by Burge, Putnam and others that meanings and mental states are dependent upon the environment. My solution is then compared with Lewis' and Nemirow's ability objection. Finally I argue that the much discussed ``knowing what it is like'' has in its ordinary meaning nothing much to do with `phenomenal knowledge' or knowledge of `epiphenomenal' facts. (shrink)

Standard responses to the knowledge argument grant that Mary could know all of the physical facts even while trapped inside her black‐and‐white room. What they deny is that upon leaving her black‐and‐white room and experiencing red for the first time, Mary learns a genuinely new fact. This paper develops an alternate response in a grounding physicalist framework, on which Mary does not know all of the physical facts while trapped inside the room. The main thesis is that Mary (...) does not know certain phenomenal facts while trapped inside the room, whereby these facts classify as physical due to being wholly and fully metaphysically grounded in the underlying fundamental facts which are themselves entirely physical. (shrink)

Paul Churchland argues that Frank Jackson.

The paper discusses Crane’s analysis of Knowledge argument, and sets forth author’s disagreement with Crane. Surely Mary learns something new when she sees a color for the first time. The time for a physicalist to quarrel comes only when a qualia person says that this experience represents special phenomenal facts, and that such understanding should be identified with propositional knowledge. We should not confuse ‘having information’ with having the same information in the form of knowledge or (...) belief. Mary knows everything there is to know about color vision. The only thing she has not done is practically experience what it is like to see a color. Thus her knowledge gap is practical and not propositional. (shrink)

I much appreciated Elizabeth Schier's paper on Frank Jackson's knowledge argument, published in the January 2008 issue of Journal of Consciousness Studies (Schier, 2008) -- in part, I confess, because of resonances with my gestalt argument for free will (Hodgson, 2001; 2002; 2005; 2007a,b). I would like to offer two comments on this paper.

The article examines the viability of called ‘the knowledge argument’ that was designed to prove the irreducibility of the subjective, phenomenal aspect of experience to the physical. It is argued that this argument can successfully be defended against its criticism. Its critics are represented here by two physicalist approaches: the mode of presentation hypothesis (here Paul Churchland), and the ability hypothesis (here David Lewis and Laurence Nemirow). The defense of the general soundness of the knowledge (...) class='Hi'>argument is based on some important insights on the issue in question of Frank Jackson and Howard Robinson. It is argued that the physicalist counterarguments to the knowledge argument seem inadequate. The article concludes that it appears that the knowledge argument has still kept a significant amount of its initial force. (shrink)

The knowledge argument aims to refute physicalism, the view that the world is entirely physical. The argument first establishes the existence of facts about consciousness that are not a priori deducible from the complete physical truth, and then infers the falsity of physicalism from this lack of deducibility. Frank Jackson gave the argument its classic formulation. But now he rejects the argument . On his view, it relies on a false conception of sensory experience, which (...) should be replaced with representationalism , the view that phenomenal states are just representational states. And he argues that mental representation is physically explicable. (shrink)

Frank Jackson’s famous Knowledge Argument moves from the premise that complete physical knowledge about experiences is not complete knowledge about experiences to the falsity of physicalism. Some physicalists (e.g., John Perry) have countered by arguing that what Jackson’s Mary, the perfect scientist who acquires all physical knowledge about experiencing red while being locked in a monochromatic room, lacks before experiencing red is merely a piece of recognitional knowledge of an identity, and that since lacking (...) a piece of recognitional knowledge of an identity does not entail lacking any pieces of knowledge of worldly facts, physicalism is safe. I will argue that what Mary lacks in her room is not merely a piece of recognitional knowledge of an identity and that some physicalists have failed to see this because of a failure to appreciate that Mary’s epistemic progress when she first experiences red has two different stages. While the second epistemic stage can perhaps be plausibly considered as acquiring merely a piece of recognitional knowledge of an identity, there is good reason to think that the first epistemic stage cannot be thus considered. (shrink)

According to social externalism, it is possible to possess a concept not solely in virtue of one’s intrinsic properties but also in virtue of relations to one’s linguistic community. Derek Ball (2009) argues, in effect, that (i) social externalism extends to our concepts of colour experience and (ii) this fact undermines both the knowledge argument against physicalism and the most popular physicalist response to it, known as the phenomenal concept strategy. I argue that Ball is mistaken about (ii) (...) even granting (i). The knowledge argument and the phenomenal concept strategy might have to be modified to make them consistent with social externalism, but not in fundamental or detrimental ways. (shrink)

This book presents a strong case for substance dualism and offers a comprehensive defense of the knowledge argument, showing that materialism cannot accommodate or explain the 'hard problem' of consciousness. Bringing together the discussion of reductionism and semantic vagueness in an original and illuminating way, Howard Robinson argues that non-fundamental levels of ontology are best treated by a conceptualist account, rather than a realist one. In addition to discussing the standard versions of physicalism, he examines physicalist theories such (...) as those of McDowell and Price, and accounts of neutral monism and panpsychism from Strawson, McGinn and Stoljar. He also explores previously unnoticed historical parallels between Frege and Aristotle, and between Hume and Plotinus. His book will be a valuable resource for scholars and advanced students of philosophy of mind, in particular those looking at consciousness, dualism, and the mind-body problem. (shrink)

*[[This paper is largely based on material in other papers. The first three sections and the appendix are drawn with minor modifications from Chalmers 2002c . The main ideas of the last three sections are drawn from Chalmers 1996, 1999, and 2002a, although with considerable revision and elaboration. ]].

This paper calls into question the viability of materialist reduction of the phenomenal. I revisit the 'Knowledge Argument', which claims that there is information about the phenomenal which is not reducible to, nor even inferable from, information about the physical. I demonstrate the failure of the two chief strategies for blocking the Knowledge Argument: analyzing phenomenal knowledge as an ability, and construing it as knowledge of facts which are ontologically reducible to physical facts. Materialist (...) reduction of the phenomenal is, thus, untenable; materialists must adopt a more extreme, eliminativist view about the phenomenal. (shrink)

It is easy to accept that scientific reasoning cannot determine the characteristics of subjective experiences in cases like Broad’s archangel or Jackson’s Mary. The author questions why this seems to be evident and discusses the differences between these cases and ordinary scientific work, where future states of studied systems can be predicted in phenomenal terms. He concludes that important limitations of scientific reasoning are due to the inadequacy of human sensorial apparatus for representing physical reality. Such inadequacies were more evident (...) in Mary’s case, but are always present, and entail the existence of the explanatory gap. (shrink)

I argue that Frank Jackson's knowledge argument cannot succeed in showing that qualia are epiphenomenal. The reason for this is that there is, given the structure of the argument, an irreconcilable tension between his support for the claim that qualia are non-physical and his conclusion that they are epiphenomenal. The source of the tension is that his argument for the non-physical character of qualia is plausible only on the assumption that they have causal efficacy, while his (...) argument for the epiphenomenal character of qualia is plausible only on the assumption that they are non-physical. Since these two arguments cannot be combined coherently, the most Jackson's argument can establish is that qualia are non-physical. (shrink)

This chapter explains how the knowledge argument works and describes various physicalist responses to the knowledge argument. Frank Jackson first presented the knowledge argument in his 1982 paper, “Epiphenomenal Qualia”. “Qualia” refers to phenomenal properties: properties such as those Mary is said to understand only after leaving the room. Not everyone shares Jackson's opinion that epiphenomenalism is the best option for knowledge argument proponents. And some argue that there are versions of physicalism (...) that the knowledge argument does not rule out. The most widely discussed such view is physicalist Russellian monism. Russellian monism combines two ideas. First, basic physics tells us about spatiotemporal‐causal structure but is silent about what underlies that structure. Second, there are intrinsic properties that both underlie that structure and constitute consciousness. Physicalist Russellian monism adds that those intrinsic properties are physical, even though they are not described by physics. (shrink)

If there is collective scientific knowledge, then at least some scientific groups have beliefs over and above the personal beliefs of their members. Gilbert's plural-subjects theory makes precise the notion of ‘over and above’ here. Some philosophers have used plural-subjects theory to argue that philosophical, historical and sociological studies of science should take account of collective beliefs of scientific groups. Their claims rest on the premise that our best explanations of scientific change include these collective beliefs. I argue that (...) Gilbert's account of collective scientific belief does not provide a better explanation of scientific change than a non-collective alternative. A different defence of collective scientific belief and knowledge is needed. (shrink)