The Integrated Information Theory (IIT) formulated for the first time in 2004 by the neuroscientist Giulio Tononi, is a theoretical framework aiming to scientifically explain phenomenal consciousness. The IIT is presented in the first part of this work. Broadly speaking, integrated information is an abstract quantitative measure of the causal power a system has on itself. The main claim of IIT is the identity between informational structures and experience. The nature of this identity will be the subject of the second (...) part. One can interpret the IIT as a fundamental law of nature connecting the physical domain to the mental domain. The philosophical implications of such a claim are numerous and they are subject to criticism. This will be the main concern of the third and last part. (shrink)

Introspection presents our phenomenal states in a manner otherwise than physical. This observation is often thought to amount to an argument against physicalism: if introspection presents phenomenal states as they essentially are, then phenomenal states cannot be physical states, for we are not introspectively aware of phenomenal states as physical states. In this article, I examine whether this argument threatens a posteriori physicalism. I argue that as along as proponents of a posteriori physicalism maintain that phenomenal concepts present the nature (...) of their referents in a partial and incomplete manner, a posteriori physicalism is safe. (shrink)

Physicalism demands an explication of what it means for something to be physical. But the most popular way of providing one—viz., characterizing the physical in terms of the postulates of a scientifically derived physical theory—is met with serious trouble. Proponents of physicalism can either appeal to current physical theory or to some future physical theory (preferably an ideal and complete one). Neither option is promising: currentism almost assuredly renders physicalism false and futurism appears to render it indeterminate or trivial. The (...) purpose of this essay is to argue that attempts to characterize the mental encounter a similar dilemma: currentism with respect to the mental is likely to be inadequate or contain falsehoods and futurism leaves too many significant questions about the nature of mentality unanswered. This new dilemma, we show, threatens both sides of the current debate surrounding the metaphysical status of the mind. (shrink)

To be acquainted with something (in the philosophical sense of “acquainted” discussed here) is to be directly aware of it. The idea that we are acquainted with certain things we experience has been discussed throughout the history of Western Philosophy, but in the early 20th century it gained especially focused attention among analytic philosophers who drew their inspiration from Bertrand Russell's work on acquaintance. Since then, many philosophers—particularly those working on self‐knowledge or perception—have used the notion of acquaintance to explain (...) various facts about human experience and knowledge. In this paper, I offer an overview of this work, with particular focus on the resurgent literature on acquaintance in contemporary analytic philosophy. After more fully explaining what acquaintance is (or is supposed to be), I describe some reasons for thinking that we are indeed acquainted with certain things we experience, and then I survey some of the facts about experience and knowledge that acquaintance may help explain. (shrink)

A zombie world is a possible world in which all the microphysical truths are identical to the truths in our world, but no one is phenomenally conscious. A zombie is an individual in a possible world whose microphysical truths are identical to the microphysical truths of an individual in our world, but who has none of the phenomenal conscious experiences of the individual in our world. An inverted is an individual in a possible world whose microphysical truths are not only (...) identical to the microphysical truths of an individual in our world, but who also has phenomenal conscious experiences. These experiences, however, are qualitatively different from the ones of the individual in our world. The first premise of Chalmers’ conceivability argument against materialism is that a zombie world, a zombie and an inverted are ideally conceivable. This paper rejects this premise in claiming that: given that current physics does not allow philosophers to establish a clear concept of the physical that could be opposed to something else non-physical, a zombie world, a zombie and an inverted are merely prima facie, but not ideally conceivable. This objection is called the Obscurity of the Physical Objection.Key-words: Zombies, qualia, conceivability, possibility, physics. (shrink)

If I am aware that p, say, that it is raining, is it the case that I must be aware that I am aware that p? Does introspective or object-awareness entail the apprehension of mental states as being of some kind or another: self-monitoring or intentional? That is, are cognitive events implicitly self-aware or is “self-awareness” just another term for metacognition? Not surprisingly, intuitions on the matter vary widely. This paper proposes a novel solution to this classical debate by reframing (...) the problem of self-knowledge in terms of the relation between phenomenal concepts and phenomenal knowledge. Concepts of consciousness such as “introspective awareness” and “reflexive self-awareness” are grounded in phenomenal experiences rather than physical events and processes. As such they yield a different kind of self-knowledge than what can be gained by applying externalist conceptual schemas to understanding the mind. I argue that Dharmakīrti’s theory of content can be seen as endorsing the efficacy of phenomenal experience as a vehicle for self-knowledge. (shrink)

Peter Carruthers argues that the global workspace theory implies there are no facts of the matter about animal consciousness. The argument is easily extended to other cognitive theories of consciousness, posing a general problem for consciousness studies. But the argument proves too much, for it also implies that there are no facts of the matter about human consciousness. A key assumption of the argument is that scientific theories of consciousness must explain away the explanatory gap. I criticize this assumption and (...) point to an alternative strategy for defending scientific theories of consciousness, one that better reflects the ongoing scientific practice. I argue there are introspectable inferential connections from phenomenal concepts to functional concepts that scientists can use to individuate the global workspace in terms of capacities that animals and humans share. (shrink)

Chalmers’ meta-problem of consciousness is the problem of explaining “problem reports”; i.e. reports to the effect that phenomenal consciousness has the various features that give rise to the hard problem. Chalmers suggests that solving the meta-problem will likely “shed significant light on the hard problem.” Against this, I argue that work on the meta-problem will likely fail to make the hard problem any easier. For each of the main stances on the hard problem can provide an account of problem reports, (...) and we have no way of deciding which of these accounts gives the correct explanation of an individual’s problem reports without presupposing a stance on the hard problem. We thus cannot determine which of the available solutions to the meta-problem is correct without having already solved the hard problem. (shrink)

In this paper, I offer a third way in debates over the scope of phenomenal consciousness, in the form of a novel synthesis of liberal and conservative introspective observations. My primary claim i...

The transparency of visual experience is a widely held and important thesis in the philosophy of perception. Critical discussion of transparency has focused on visual experiences, such as the experience of visual blur that are taken to be counter examples to transparency. Here, I consider a novel objection to transparency that does not depend on intuitions about examples. The objection is that if transparency is true then we cannot explain our ability to think about our visual experiences as such. In (...) response to this objection, I develop an account of how we are able to think about our own visual experiences as such that is compatible with transparency. (shrink)

This is a dialogue between an opponent of the phenomenal concept strategy and Mary from Frank Jackson’s knowledge argument. In this dialogue, Mary, who has complete physical knowledge about what it is like to see red, but has never seen red, is a physicalist and she defends the phenomenal concept strategy against her interlocutor’s objections. In the end, none of them is able to convince the other, but their conversation, through considerations of different versions of the knowledge argument and different (...) applications of the phenomenal concept strategy, reveals the most basic disagreement, or clash of intuitions, they have. The implied conclusion of the dialogue is that the disagreement on the success of phenomenal concept strategy as a physicalist response to the knowledge argument cannot be resolved unless this particular clash of intuitions is resolved. (shrink)

‘Space does not exist fundamentally: it emerges from a more fundamental non-spatial structure.’ This intriguing claim appears in various research programs in contemporary physics. Philosophers of physics tend to believe that this claim entails either that spacetime does not exist, or that it is derivatively real. In this article, I introduce and defend a third metaphysical interpretation of the claim: reductionism about space. I argue that, as a result, there is no need to subscribe to fundamentality, layers of reality and (...) emergence in order to analyse the constitution of space by non-spatial entities. It follows that space constitution, if borne out, does not provide empirical evidence in favour of a stratified, Aristotelian in spirit, metaphysics. The view will be described in relation to two particular research programs in contemporary physics: wave function realism and loop quantum gravity. (shrink)

Illusionism about phenomenal consciousness is the thesis that phenomenal consciousness does not exist, even though it seems to exist. This thesis is widely judged to be uniquely counterintuitive: the idea that consciousness is an illusion strikes most people as absurd, and seems almost impossible to contemplate in earnest. Defenders of illusionism should be able to explain the apparent absurdity of their own thesis, within their own framework. However, this is no trivial task: arguably, none of the illusionist theories currently on (...) the market is able to do this. I present a new theory of phenomenal introspection and argue that it might deal with the task at hand. (shrink)

If the physical mind is located in quantized space of the brain then how does the physical mind become the self? This remains an unresolved problem. It can be restated as how mental representations or mental states get their informational contents, and of doing so in terms of the natural functions brain states have? We call these natural brain functions not teleosemantic functions, but rather teleological functions. This is because teleosemantics portrays mental representations which must have informational contents that track (...) “operational explanations of cognitive capacities” while teleological functions do not as they are hidden in quantized space, suggesting that mind is physical. Specifically teleonomic capacities have been built into us by natural selection, which naturally leads to a teleogical notion of function. Our claim is that teleofunctionality as unification of mental states has natural functions that carry intrinsic dispositions that may be broadly defined as ‘subjectivity’ or intrinsic information content of mental states. Mental states have intrinsic dispositions to change their functions, producing correspondences to the world that includes further layers of subtlety hidden in quantized space. How does intrinsic information self-replicate content in cases of mental misrepresentation? The putative special virtue of teleosemantics and its ability to give a theory of error through ‘uncertainty’ is discussed based on a teleological functionalist epistemology. (shrink)

The majority of physicalists are type-B physicalists – believing that the phenomenal-physical truths are only knowable a posteriori. This paper aims to show why this view is misguided. The strategy is to design an agent who (1) has full general physical knowledge, (2) has phenomenal concepts, and yet (3) is wired such that she would be in a position to immediately work out the phenomenal-physical truths. I argue that this derivation yields a priori knowledge. The possibility of such a creature (...) entails that – contrary to type-B physicalism – there is not an ideal epistemic gap between the phenomenal and the physical truths. Out of this argument against type-B physicalism emerges a positive result: a new and compelling version of type-A physicalism, roughly a type-A phenomenal concept strategy. (shrink)

According to a posteriori physicalism, phenomenal properties are physical properties, despite the unbridgeable cognitive gap that holds between phenomenal concepts and physical concepts. Current debates about a posteriori physicalism turn on what I call “the perspicuity principle”: it is impossible for a suitably astute cognizer to possess concepts of a certain sort—viz., narrow concepts—without being able to tell whether the referents of those concepts are the same or different. The perspicuity principle tends to strike a posteriori physicalists as implausibly rationalistic; (...) further, a posteriori physicalists maintain that even if the principle is applicable to many narrow concepts, phenomenal concepts have unique features that render them inferentially isolated from other narrow concepts ). I argue, on the contrary, that the case for the perspicuity principle is quite strong. Moreover, not only have versions of the PCS repeatedly failed, likely, all versions will, given the strange combination of lucidity and opacity that the PCS has to juggle. I conclude that a posteriori physicalists currently lack a principled objection to classic anti-physicalist arguments. (shrink)

In this article we aim to see how far one can get in defending the identity thesis without challenging the inference from conceivability to possibility. Our defence consists of a dilemma for the modal argument. Either “pain” is rigid or it is not. If it is not rigid, then a key premise of the modal argument can be rejected. If it is rigid, the most plausible semantic account treats “pain” as a natural-kind term that refers to its causal or historical (...) origin, namely, C-fibre stimulation. It follows that any phenomenon that is not C-fibre stimulation is not pain, even if it is qualitatively similar to pain. This means there could be phenomena that feel like pain but are not pain since they are not C-fibre stimulation. These possible phenomena can be used to explain away the apparent conceivability of pain without C-fibre stimulation. On either horn of the dilemma, the identity theorist has ample resources to respond to Kripke's argument, even without wandering into the contentious territory of conceivability and possibility. (shrink)

This paper is both systematic and historical in nature. From a historical viewpoint, I aim to show that to establish Wittgenstein’s claim that “an ‘inner process’ stands in need of outward criteria” there is an enthymeme in Wittgenstein’s private language argument overlooked in the literature, namely Wittgenstein’s suggestion that both perceptual and bodily experiences are _transparent_ in the relevant sense that one cannot point to a mental state and wonder “What is that?” From a systematic viewpoint, I aim to show (...) that Wittgenstein’s PLA teaches us that the prevailing picture of the nature of phenomenal concepts is upside down: we can only introspectively know what is going on inside our heads, after we learn of what is going on outside. In this regard, I aim to defend two associate claims against the prevailing view of PCs on the basis of PLA. First, by means of transparency, I aim to show that there is no _de re_ awareness of our private sensation that could determine the meaning of sensation-words; for example, I am never aware _of _the phenomenal blueness of my experience of something blue. The second associated claim is that introspective self-knowledge of our private sensation is always _de dicto_. We can only know introspectively that phenomenal blueness is the phenomenal character of the experience we are undergoing after we have learned _that _ blue is the color that usually causes in us that kind of experience. Likewise, we can only introspectively know that pain is the phenomenal character of the experience we are undergoing after we have learned that pain is what usually causes some typical pain behavior. (shrink)

The Phenomenal Concept Strategy is a popular strategy used to support physicalism in the realm of conscious experience. This Strategy accounts for dualist intuitions but uses the ways in which we think about our experiences to explain these intuitions in a physicalist framework, without any appeal to ontological dualism. In this paper, I will raise two issues related to the currently available versions of the Phenomenal Concept Strategy. First, most of the theories belonging to the Phenomenal Concept Strategy posit that (...) phenomenal concepts are exceptional and sui generis concepts, and these theories can be shown to be largely ad hoc. Second, these theories may explain the existence of anti-physicalist intuitions, but they do not explain their persistence. My aim is to put forward a new theory of phenomenal concepts that can rise up to these challenges to the Phenomenal Concept Strategy. In my view, phenomenal concepts are not independent and sui generis concepts. On the contrary, they are closely related to our other epistemic concepts, especially our concepts of “justification”. Thinking about an experience means thinking about a specific kind of justification – an unjustified justification, or, in other words, an “ultimate seeming”. I will show why this explains the existence and the persistence of antiphysicalist intuitions in a non-ad hoc way. (shrink)

The phenomenal character of conscious experience has long been regarded as the major problem for physicalist accounts of consciousness. In recent years, defenders of physicalism have typically been relying on the so-called Phenomenal Concept Strategy to avoid dualism. In this paper, we argue with PCS that cognitive-physicalistic explanations can account for the peculiarities of phenomenal character. However, we think that the conceptual features PCS investigates are not the genuine causes of the special characteristics of phenomenal consciousness but only symptoms, which (...) can themselves be explained in terms of the features of the sensory-perceptual representations underlying conscious experiences, namely that some, but not all, of these states are representationally unstructured. (shrink)

We tend to think that our concepts are stable in the sense that, whilst their extensions may vary across distinct epistemic scenarios, the reference-fixing conditions by which we discover these extensions remain fixed. This paper challenges this orthodoxy. In particular, it aims to motivate the position that some concepts are unstable in that their reference-fixing conditions themselves vary across distinct epistemic scenarios. Furthermore, it aims to draw out the implications such instability has for epistemic possibility and apriority. I shall argue (...) that when unstable concepts are concerned epistemic space will be widened, which in turn will restrict our a priori knowledge; and in ways that might be salient to solving certain familiar philosophical problems. (shrink)

The aim of this paper is to develop a pluralist interpretation of the phenomenal concept strategy (PCS). My starting point is Horgan and Tienson's deconstructive argument according to which proponents of PCS face the following dilemma: either phenomenal concepts or physical concepts allow us to conceive phenomenal states as they are in themselves. If phenomenal concepts allow us to conceive phenomenal states as they are in themselves, then phenomenal states are non-physical states and physicalism is wrong. If physical concepts allow (...) us to conceive phenomenal states as they are in themselves, then phenomenal concepts are derivative and PCS is wrong. While Horgan and Tienson assume that their argument shows that PCS leads to dualism, I argue that one can also adopt an ‘epistemic pluralism’ that rejects the idea of only one fundamental way of conceiving phenomenal states as they are in themselves. However, I also argue that epistemic pluralism eventually leads to a position that is compatible neither with dualism nor physicalism. Instead of justifying a non-reductive ‘new wave materialism’, PCS may therefore lead to a ‘new wave pluralism’ that is at odds with all mainstream positions in philosophy of mind. (shrink)

This thesis introduces the Problem of Consciousness as an antinomy between Physicalism and Primitivism about the phenomenal. I argue that Primitivism is implausible, but is supported by two conceptual gaps. The ‘–tivity gap’ holds that physical states are objective and phenomenal states are subjective, and that there is no entailment from the objective to the subjective. The ‘–trinsicality gap’ holds that physical properties are extrinsic and phenomenal qualities are intrinsic, and that there is no entailment from the extrinsic to the (...) intrinsic. Stoljar’s Epistemic View (EV) suggests that we have a limited conception of the physical world, and that the apparent inexplicability of consciousness is merely a symptom of our ignorance. I argue that EV must satisfy two conditions which require it to specify the content of our ignorance. EV’s best hope is a Russellian appeal to our ignorance of intrinsic physical properties. After arguing in favour of this ignorance claim, I show how it undermines the –trinsicality gap. However, I suggest that the –tivity gap cannot be dealt with by the Russellian ignorance hypothesis, nor by any other version of EV. However, I then argue that the Russellian ignorance hypothesis can still be deployed as half of a hybrid account of the phenomenal. Representationalist theories of consciousness have difficulty with the –trinsicality gap, but show promise with the –tivity gap. Specifically, Kriegel’s Self-Representationalism indicates that there can indeed be an entailment from objective physical states to subjective phenomenal states. This paves the way for my hybrid account of consciousness: the subjectivity of a phenomenal state is the product of its self-representational structure, and the qualitative character of a phenomenal state is the product of the epistemically inaccessible intrinsic physical properties involved in its implementation. (shrink)

Defenders of the Knowledge Argument contend that physicalism is false because knowing all the physical truths is not sufficient to know all the truths about the world. In particular, proponents of the Knowledge Argument claim that physicalism is false because the truths about the character of conscious experience are not knowable from the complete set of physical truths. This dissertation is a defense of the Knowledge Argument. Chapter one characterizes what physicalism is and provides support for the claim that if (...) knowing all the physical truths is not sufficient to know all the truths about the world, then physicalism is false. In chapter two, I defend the claim that knowing all the physical truths is not sufficient for knowing all the truths about the world. In addition to mounting a prima facie case for the knowledge intuition, I present and defend an epistemology grounded in direct acquaintance to provide a more substantive argument to accept it. Chapters three through five address the physicalist objections to the Knowledge Argument. The first set of objections advocates that knowing all the physical truths is, in fact, sufficient for knowing all the truths about the world. The next set of objections admits that there is some sense in which knowing all the physical truths is not sufficient for knowing all the truths about the world. However, these objections maintain that the kind of knowledge that is absent from the complete set of physical truths is know-how or knowledge by acquaintance, and not factual or propositional knowledge. The final set of objections maintain that the kind of propositional knowledge that is left out of the complete set of physical truths is compatible with physicalism. My response to these objections is part of advancing my prima facie case for the Knowledge Argument. The final chapter addresses a structural question that pertains to the Knowledge Argument. Some philosophers have maintained that the structure of the Knowledge Argument invites a kind of self-refutation of any systematic account of reality. The concern is that the Knowledge Argument proves too much, and that the dualist who uses the argument to refute physicalism risks the argument defeating his own position. I will argue that the Knowledge Argument does not refute dualism. (shrink)

Distributive egalitarians believe that distributive justice is to be explained by the idea of distributive equality (DE) and that DE is of intrinsic value. The socio-relational critique argues that distributive egalitarianism does not account for the “true” value of equality, which rather lies in the idea of “equality as a substantive social value” (ESV). This paper examines the socio-relational critique and argues that it fails because – contrary to what the critique presupposes –, first, ESV is not conceptually distinct from (...) DE, and second, the idea of ESV cannot serve as a “foundation” or “root” of distributive egalitarianism. (shrink)

Kripke’s antimaterialist argument, under David Papineau’s new interpretation, is not based on assuming that the conceivability of zombies entails possibility and does not lead to the conclusion that materialism is false but rather to the conclusion that we are all in the grip of the intuitive feeling that materialism is false. Leaving it open whether or not Papineau’s interpretation of Kripke’s argument is correct, I argue here that by appealing to the intuition of dualism we can see that the conceivability (...) of zombies is not a reliable guide to possibility. (shrink)

Recent years have seen a growing interest in Buddhist thought as a potential source of alternative conceptions of the nature of the mind and the relation between the mental and the physical. This article considers and assesses three different models of what contemporary philosophy of mind can learn from Buddhist thought. One model, advocated by Alan Wallace, holds that we can learn from Buddhist meditation that both individual consciousness and the physical world itself emerge from a deeper, “primordial” consciousness. A (...) second model, supported by Owen Flanagan, maintains that we should accept from Buddhist thought only what is compatible with physicalism, and thus draws from Buddhism only insights into moral psychology and spirituality. Evan Thompson has developed a third, phenomenological approach, which derives from Buddhism a non‐dualistic account of the relation between the mental and the physical, dissolving the “explanatory gap” between them. I suggest that all of these models face significant challenges, and propose a different model derived from the Buddhist philosopher Nāgārjuna, which shows the potential to resolve some of the challenges facing contemporary theories of consciousness. (shrink)

Frank Jackson’s famous Knowledge Argument moves from the premise that complete physical knowledge is not complete knowledge about experiences to the falsity of physicalism. In recent years, a consensus has emerged that the credibility of this and other well-known anti-physicalist arguments can be undermined by allowing that we possess a special category of concepts of experiences, phenomenal concepts, which are conceptually independent from physical/functional concepts. It is held by a large number of philosophers that since the conceptual independence of phenomenal (...) concepts does not imply the metaphysical independence of phenomenal properties, physicalism is safe. This paper distinguishes between two versions of this novel physicalist strategy –Phenomenal Concept Strategy (PCS) – depending on how it cashes out “conceptual independence,” and argues that neither helps the physicalist cause. A dilemma for PCS arises: cashing out “conceptual independence” in a way compatible with physicalism requires abandoning some manifest phenomenological intuitions, and cashing it out in a way compatible with those intuitions requires dropping physicalism. The upshot is that contra Brian Loar and others, one cannot “have it both ways.”. (shrink)

Chapter 1 is devoted to taking care of some preliminary issues. I begin by distinguishing those states of awareness in virtue of which we’re acquainted with the phenomenal characters of our experiences from those states of awareness some claim are at the very nature of experience. Then I reconcile the idea that experience is transparent with the claim that we can be acquainted with phenomenal character. -/- In Chapter 2 I set up a dilemma that is the primary focus of (...) the dissertation. In the first part of this chapter I argue that phenomenal acquaintance has three key features, what I call its ‘directness’, ‘thickness’, and ‘infallibility’. In the second part I argue, however, that it’s really quite puzzling how thoughts about phenomenal character (or any thoughts, for that matter) could have them. In the next two chapters I consider how we might resolve the dilemma described above. -/- I begin in Chapter 3 by considering an account of phenomenal acquaintance inspired by Bertrand Russell’s discussion of acquaintance. The general idea here is to excise mental representation from phenomenal acquaintance, and I ultimately reject the proposal. -/- Chapter 4 is the core chapter of the dissertation. In it I propose an account of phenomenal acquaintance that doesn’t excise mental representation. My account is comprised of three theses. First, token experiences are complex and have instances of phenomenal properties as components. Second, instances of phenomenal properties are mental representations, and they represent themselves. Third, the attention relevant to phenomenal acquaintance is underwritten by self-representation. I argue that my account explains how phenomenal acquaintance is direct, thick, and infallible, thereby resolving our dilemma. -/- I argue in Chapter 5 that my account of phenomenal acquaintance explains why there is an explanatory gap between the phenomenal and non-phenomenal truths. Accordingly, I conclude that the explanatory gap doesn’t pose a problem for physicalism. Here I implement what has come to be called the ‘phenomenal concept strategy’ for responding to the challenge posed by the explanatory gap. (shrink)

Abstract In recent debates, both physicalist and anti-physicalist philosophers of mind have come to agree that understanding the nature of phenomenal concepts is key to understanding the nature of phenomenal consciousness itself. Recently, however, Derek Ball (2009) and Michael Tye (2009) have argued that there are no such concepts. Their case is especially troubling because they make use of a type of argument that proponents of phenomenal concepts have typically found persuasive in other contexts; namely, arguments much like those that (...) Tyler Burge used to motivate a certain form of externalism about mental content. The goal of this paper is to defend phenomenal concepts against this line of attack. Burge-style arguments, I contend, cannot be successfully used to make the case that there are no phenomenal concepts. As such, phenomenal concepts must remain central to understanding the nature of phenomenal consciousness. (shrink)

The aim of this thesis is to provide a theory of phenomenal consciousness which accords with both the science-friendly spirit of physicalism and the acknowledgement of panpsychism that phenomenal properties may be inextricably linked to entities, but with none of the problems associated with either type of model. Initially, physicalism and panpsychism are evaluated by the lights of their most serious problems, and solutions are offered to these problems from the point of view of a third kind of model: intrinsic (...) naturalism, presented in the final chapter. This model holds consciousness to be among the battery of a functional system’s intrinsic properties. A definition is given, and defence made for the existence of these properties, and their compatibility with an otherwise physicalist ontology. (shrink)

I show that the recursive structure of Leibniz's Law requires agents to perform infinitely many operations to psychologically identify the referents of phenomenal and physical concepts, even though the referents of ordinary concepts (e.g. Hesperus and Phosphorus) can be identified in a finite number of steps. The resulting problem resembles the hard problem of consciousness in the fact that it appears (and indeed is) unsolvable by anyone for whom it arises, and in the fact that it invites dualist and eliminativist (...) responses. Moreover, if this is the hard problem then we can predict that regardless of the strength of the argument for physicalism, and regardless of physicalism's truth, an ineliminable dissatisfaction is bound to accompany any physicalist theory of consciousness. Accordingly, I suggest that this is the hard problem of consciousness, and therefore that the hard problem arises from a recursively degenerate application of Leibniz's Law. (shrink)

Recognitional concepts have the following characteristic property: thinkers are disposed to apply them to objects merely on the basis of undergoing certain perceptual experiences. I argue that a prominent strategy for defending the existence of constitutive connections among concepts, which appeals to thinkers’ semantic-cum-conceptual intuitions, cannot be used to defend the existence of recognitional concepts. I then outline and defend an alternative argument for the existence of recognitional concepts, which appeals to certain psychological laws.