Qualia

There are extensive discussions of the 5D AdS metric that arises naturally from a metric that accounts for the A-series, the B-series, and x^a; black holes, including their information, entropy, temperature, energy, and energy density; the Big Bang; the finitude of singularities here; inflation; AdS/CFT and dS; symmetry groups of this theory of gravity not including and including those of the standard model, with evaluations of how integrated and how plausible they are; how the theory of quantum gravity here gives (...) general relativity in one limit and quantum mechanics in another limit; and much more. -/- Of particular interest is the physics based argument for the continuation of awareness after death, which starts on about page 196 and spans several pages. (shrink)

General Introduction: In [1] a Calculus of Qualia (CQ) was proposed. The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader’s mind and is non-referential; it does not even refer to itself. The meaning and behavior of these terms is radically different. All of philosophy, from Plato through Descartes through Chalmers, including hieroglyphics and emojis, used (...) referential terms up until CQ. This paper in this series of papers address equations vs. qualations (which contain non-referential terms), proofs, and logic. An example of an equation is x+2=4, which uses exclusively referential terms, even if some of them are numbers. A Qualation is like an equation except it uses actual non-referential terms (qualia), like █ ≠ ▲, and can be clearly non-trivial, like ¬((█ ≠ ▲) ∧ (▲ ≠ ■) → (█ ≠ ■)). (see below). This has implications for assertions, proofs, truth, etc. Incompleteness and truth are addressed in a different paper in this series. (shrink)

General Introduction: In [1] a Calculus of Qualia (CQ) was proposed. The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader’s mind and is non-referential; it does not even refer to itself. The meaning and behavior of these terms is radically different. All of philosophy, from Plato through Descartes through Chalmers, including hieroglyphics and emojis, used (...) referential terms up until CQ. This paper in this series of papers addresses the question of why is there something rather than nothing, at length, and gives a radical new answer. It has to do with the fact in CQ that, while blackness is contingently possible, █ is necessarily actual, as it was in this sentence. (shrink)

General Introduction: In [1] a Calculus of Qualia (CQ) was proposed. The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader’s mind and is non-referential; it does not even refer to itself. The meaning and behavior of these terms is radically different. All of philosophy, from Plato through Descartes through Chalmers, including hieroglyphics and emojis, used (...) referential terms up until CQ. This paper in this series of papers includes a relatively short but comprehensive discussion with the AI Claude 3.5 Sonnet on how the CQ impacts various theories of consciousness, including Materialism, Dualism, Idealism, and 14 others. (shrink)

A Calculus of Qualia (CQ) was proposed (on PhilPapers). The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader's mind and is non-referential, *it does not even refer to itself*. The meaning and behavior of these terms is radically different. In this paper in this series of papers, we discuss Godel Incompleteness and the incompleteness or (...) not of CQ. (shrink)

A Calculus of Qualia (CQ) was proposed (on PhilPapers). The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader's mind and is non-referential, *it does not even refer to itself*. The meaning and behavior of these terms is radically different. In this paper in this series of papers, we give a discussion zombies, spectrum inversion, the (...) knowledge argument, Hard Problems, and how to understand the solutions to Hard Problems. (shrink)

A Calculus of Qualia (CQ) was proposed (on PhilPapers). The key idea is that, for example, blackness is radically different than █. The former term, “blackness” refers to or is about a quale, whereas the latter term, “█” instantiates a quale in the reader's mind and is non-referential, *it does not even refer to itself*. The meaning and behavior of these terms is radically different. In this paper in this series of papers, we discuss verifiability, experimental predictability and expanding science (...) to include the notion of systematic 1st-person versions of these. For example, I can make systematic predictions about a chair based on intersubjective agreement. I cannot do that with qualia, but if I witness (or experience) the truth of the qualation █ ≠ ▲ I can systematically predict that you will witness (or experience) the truth of your version of it, based on CQ and *intrasubjective* agreement. This is a radical expansion of the scientific methodology to include 1st-person verifiability and predictions and is an important part of the beginning of a paradigm shift. (shrink)

Artists rarely shy away from a drink and other psychoactive substances, yet it seems that there has never been much discussion on what aesthetic or artistic relevance this has to their works and their reception. I outline the scale of the phenomenon focusing on some prominent examples and distinguish a subset of what I call ‘high artworks’. In such artworks, I argue, drug experiences are encoded: their drug-related contextual and intrinsic properties or content are aesthetically or artistically relevant and should (...) be mentioned in any in-depth analysis. I then further argue that it is impossible or at least very difficult to fully appreciate or produce optimal evaluations of a high artwork, unless one has oneself had drug-induced experiences of the kind encoded in the work. This is because such experiences afford one the relevant phenomenal knowledge that is otherwise inaccessible, yet required to gain an adequate level of competence allowing one to fully grasp the work. (shrink)

Our conscious experiences are qualitative and unitary. The qualitative universals given in particular experiences, i.e. qualia, combine into the seamless unity of our conscious experience. The problematics of quality and cohesion are not unique to consciousness studies. In mathematics, the study of qualities (e.g., shape) resulting from quantitative variations in cohesive spaces led to the axiomatization of cohesion and quality. Using the mathematical definition of quality, herein we model qualia space as a categorical product of qualities. Thus modeled qualia space (...) is a codomain space wherein composite qualities (e.g. shape AND color) of conscious experiences can be valued. As part of characterizing the qualia space, we provide a detailed exemplification of the mathematics of quality and cohesion in terms of the categories of idempotents and reflexive graphs. More specifically, with qualities as commutative triangles formed of cohesion-preserving functors, first we calculate the product of commutative triangles. Next, we explicitly show that the category of idempotents is a quality type. Lastly, as part of showing that the category of reflexive graphs is cohesive, we characterize the adjointness between functors relating cohesive graphs to discrete sets. In conclusion, our category theoretic construction of qualia space is a formalization of the binding of qualitative features (colors and shapes) into the cohesive objects (colored-shapes) of conscious experiences. Compared to the feature-vector accounts of conscious experiences, our product-of-qualities account of consciousness is a substantial theoretical advance. (shrink)

The resolution of subjective-objective dichotomy is not lies in reduction rather grounded on the synthesis of phenomenal aspect and intentional-representational aspect of experience. We have to acknowledge the limits of both physical and mental objectivity and gradually transcend and expand the scope of physical as well as mental objectivity through neutral perspective. The Nagelian version of phenomenal realism has indicated for resolving the subjective-objective dichotomy by observing the interaction of subjective point of view and objective point of view about the (...) reality from neutral perspective. (shrink)

If, as argued in some simulationist accounts, empathy aims at grasping the phenomenal richness of the other’s experience and resonating with it, it is difficult to explain our empathy with emotions that we have never experienced ourselves. According to a long philosophical tradition, imagination is constrained by experience. We have to be acquainted with the qualitative feel of the other’s experience in order to imagine it. A critical view of simulationist accounts would claim that if we cannot imagine how the (...) other feels because we are not acquainted with it, empathy cannot take place. Contrary to such criticism, this paper takes a moderately optimistic view of the simulationist claim. It develops a model to explain how we imagine the other’s emotions by drawing on phenomenal concepts, affective memories, and imaginative scaffoldings. I argue that this model can explain how we empathize with the other’s emotions regardless of whether these are familiar or novel to us. However, in the latter case, the imagined phenomenal quality is not identical but probably only similar to the other’s emotion. This similarity suffices for us to speak about empathy. (shrink)

Erkenntnistheoretisch gesehen ist es fraglich, ob mentale Zustände, also Qualia, materialisiert und quantifiziert werden können. Dennoch machen sich vor allem die Naturwissenschaften mit Feuereifer an die Quantifizierung von Qualia, an die Vermessung der Seele sozusagen. In diesem Band werden - aus historischer wie aktueller Perspektive - natur- und geisteswissenschaftliche Zugänge vorgestellt, interdisziplinär miteinander in Relation gesetzt und einer gründlichen epistemologischen Reflexion unterzogen.

If you were to build a world from Nothing, how would you do it? By investigating the nature of self-reference, we will show how this can be achieved, how starting from Nothing, Everything can be obtained. Various implications of the definition of self-reference will be investigated, showing how it can account for various aspects of the phenomenology of consciousness, thus showing how starting from only 1 principle, a world of infinite complexity can be obtained. Parallels with set theory will be (...) made along the way. (shrink)

If you were to build a world from Nothing, how would you do it? By investigating the nature of self-reference, we will show how this can be achieved, how starting from Nothing, Everything can be obtained. Various implications of the definition of self-reference will be investigated, showing how it can account for various aspects of the phenomenology of consciousness, thus showing how starting from only 1 principle, a world of infinite complexity can be obtained. Parallels with set theory will be (...) made along the way. (shrink)

In current histories, C.I. Lewis is credited for bringing the strict concept of qualia – concerned solely with sensory states – into contemporary philosophy. It is this strict notion which is then credited with bringing in worries about inverted spectra, philosophical zombies, and the idea that we can individuate the senses introspectively. In this paper, I argue that this is a mistaken reading of Lewis and the history of qualia. I argue that the strict notion of qualia stems from the (...) work of Johannes Müller in the mid-nineteenth century and his work on individuating the senses. The structuralist psychologists who followed in his wake, in turn, developed an account where the qualitative character of experience played no causal role. I also show that Lewis adamantly rejects this strict concept of qualia. He instead endorses a pragmatic conception of qualia derived from William James in which evaluative states – such as the painfulness of pain – play an essential, causal role in the life of the organism. The upshot is that Lewis positions himself against the strict conception of qualia, arguing it is phenomenologically false and philosophically wrong-headed. (shrink)

The purpose of this article is to offer a new view of the key relation between the content and the conscious character of visual experience. The author aims to support the following claims. First, the author rejects the qualia realist claim that conscious character is an intrinsic, nonrepresentational property of visual experience, for example, a pattern of activation of neurons. However, the author also rejects the rival widespread representationalist claim that the conscious character of visual experience is identical to, or (...) supervenes on, any specific property represented by visual experience. The positive proposal is the following. Conscious character is identical to those patterns of activation of neurons that are referentially or representationally alive. Conscious redness, for example, is a pattern of activations of neurons that is normally created only when brains of physical duplicates come in visual contact with some distal property. This pattern of activation is recruited by natural selection to represent that property. This is called meaning representationalism. (shrink)

How does one know the phenomenal character of one’s own experience? I aim to present and defend a new view of the epistemology of qualia that addresses this issue. My view results from a reworking of Dretske’s displaced perception model. The guiding line is the key Wittgensteinian insight of his Private Language Argument, namely the claim that no inner perception of qualia can justify our corresponding qualia beliefs. My reworking of the original model starts with the rejection of Dretske’s representationalism, (...) as well as any other metaphysical views about the ultimate nature of qualia. The reworking of the displaced perception model I am proposing is supposed to be compatible with any available metaphysical view on qualia. The second step consists of rejecting the epistemological misgivings of the original model, namely the view that knowing qualia requires “connecting beliefs” along with “meta-representations.” Yet, Dretske’s crucial mistake has been to force knowledge of qualia into the “belief-box.” As a matter of fact, there is only one belief involved in introspecting qualia, namely the qualia-belief itself. The third final step is this. Assuming the key Wittgensteinian insight, I argue that introspection of qualia is a process that is both epis- temically reliable and automatic. It is reliable because it dispenses with justification of any beliefs whatsoever. Moreover, it is automatic because it also dispenses with reflexive connecting beliefs. For example, it takes nonconceptual awareness of the color blue as an input and automatically yields the belief that phenomenal blue is the conscious character of my experience of the sky as an output just by employing the concept BLUE. (shrink)

Viele unserer Bewusstseinszustände sind dadurch charakterisiert, dass es irgendwie für uns ist (Nagel 1974), in diesen Zuständen zu sein. In der Philosophie des Geistes werden derartige Zustände als ‚phänomenale Zustände‘ bezeichnet. ‚Phänomenale Begriffe‘ sind nun spezielle Begriffe, mittels derer wir uns auf phänomenale Zustände beziehen. Paradigmatische Beispiele für phänomenale Zustände, von denen wir einen phänomenalen Begriff besitzen können, sind das bewusste Erlebnis, die Farbe Blau zu sehen, den Klang einer Violine zu hören oder Schmerz zu fühlen. Zentral ist, dass sich (...) phänomenale Begriffe auf besondere Art und Weise auf diese Zustände beziehen – sie konzeptualisieren sie anhand ihrer subjektiven, phänomenalen Eigenschaften (d.h. anhand ihrer ‚Qualia‘). (shrink)

How does one know the phenomenal character of one’s own experience? I aim to present and defend a new view of the epistemology of qualia that addresses this issue. My view results from a reworking of Dretske’s displaced perception model. The guiding line is the key Wittgensteinian insight of his Private Language Argument, namely the claim that no inner perception of qualia can justify our corresponding qualia-beliefs. My reworking of the original model starts with the rejection of Dretske’s representationalism, as (...) well as any other metaphysical views about the ultimate nature of qualia. The reworking of the displaced perception model I am proposing is supposed to be compatible with any available meta- physical view on qualia. The second step consists of rejecting the epistemological misgivings of the original model, namely the view that knowing qualia requires “connecting beliefs” along with “meta-representations.” Yet, Dretske’s crucial mistake has been to force knowledge of qualia into the “belief-box.” As a matter of fact, there is only one belief involved in intro- specting qualia, namely the qualia-belief itself. The third final step is this. Assuming the key Wittgensteinian insight, I argue that introspection of qualia is a process that is both epis- temically reliable and automatic. It is reliable because it dispenses with justification of any beliefs whatsoever. Moreover, it is automatic because it also dispenses with reflexive con- necting beliefs. For example, it takes nonconceptual awareness of the color blue as an input and automatically yields the belief that phenomenal blue is the conscious character of my experience of the sky as an output just by employing the concept BLUE. (shrink)

Structuralist theories of properties state that properties are individuated by their nomological or causal roles. It has previously been suggested that structuralism is incompatible with robust conceptions of qualia. In this paper, I argue that structuralism should be taken as a theory of de re representation, and under this formulation it is able to accommodate qualia as intrinsic, introspectable properties of experiences. I then turn to various thought experiments used by qualia theorists to expand the notion of qualia, and find (...) the majority of these compatible with structuralism as well. I conclude that the structuralists and qualia theorists need not be at odds with each other. (shrink)

This is a paper about a general representational theory of consciousness. It is quite old, and much progress has been made since. We are building and tracking consensus arround the ideas in the Representational Qualia Theory camp on Canonizer.

Computationalism treats minds as computations. It hasn't explained how our quite similar sensory circuits encode our quite different qualia, nor how these circuits encode the binding of the different qualia into unifi ed perceptions. But there is growing evidence that qualia and binding come from neural electrochemical substances such as sensory detectors and the strong continuous electromagnetic field they create. Qualia may thus be neural substances, not neural computations (though computations may still help modulate qualia). This neuroelectrical view not only (...) avoids computationalism's empirical issues but also its problematic metaphysics. (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)

How can we expand science to include what-it’s-like information like qualia? This paper gives the beginning of one possible way forward. It is possible to include qualia in communications as their own terms.

It is hard to believe that colors, sounds, tastes and feelings, the essential ingredients of the world as we know it, never existed in the universe until complex nervous systems appeared. This paper explores the idea that phenomenal experiences made of sensible qualities such as colors and sounds exist physically as the “clothing” of matter and are real public appearances that may be experienced by any locally situated subject, shared by multiple such subjects, or may even exist unperceived. In this (...) panqualityist worldview our awareness goes right up against the physical world that we can directly perceive. Material objects really have colors that are ubiquitous and existed in nature before brains evolved. The evolution of the brain did not create new physics, but employed the same ubiquitous simple physical laws that generate colors in external objects to generate colors internally. I theorize that there are different “matter to qualia” bridging laws for each sense modality and speculate as to what they may look like. (shrink)

Panpsychism is a solution to the mind-body problem that presumes that consciousness is a fundamental aspect of reality instead of a product or consequence of physical processes (i.e., brain activity). Panpsychism is an elegant solution to the mind-body problem: it effectively rids itself of the explanatory gap materialist theories of consciousness suffer from. However, many theorists and experimentalists doubt panpsychism can ever be successful as a scientific theory, as it cannot be empirically verified or falsified. In this paper, I present (...) a panpsychist model based on the controversial idea that consciousness may be a so called higher physical dimension. Although this notion seems outrageous, I show that the idea has surprising explanatory power, even though the model (as most models) is most likely wrong. Most importantly, though, it results in a panpsychist model that yields predictions that can be empirically verified or falsified. As such, the model's main purpose is to serve as an example how a metaphysical model of consciousness can be specified in such a way that they can be tested in a scientifically rigorous way. (shrink)

On January 2023, I received an email from somebody regarding Velmans’s article 2008. After I took a look at the paper, I started to read his book 2000. Therefore, in this section, I will investigate Velmans’ works from 2000 and 2008. I emphasize that the main difference between Spinoza’s (Velmans) dual aspect theory and my EDWs approach is the framework of thinking: Spinoza, Velmans and everybody until me had been working within the unicorn world (the Universe/world), while my EDWs assumes (...) the rejection of the the universe/world; I replace this eternal and wrong notion with the EDWs. (see my previous works; my first five books and a book from 2022 and many of my articles are FREE on internet at my webpage and other pages). (shrink)

We give an argument for temporal A-theories based on the calculus of qualia.

It is often said that there is no appearance/reality distinction with respect to consciousness. Call this claim ‘NARD’. In contemporary discussions, NARD is closely connected to the thesis of revelation, the claim that the essences of phenomenal properties are revealed in experience, though the connection between the two requires clarification. This paper distinguishes different versions of NARD and homes in on a particular version that is closely connected to revelation. It shows how revelation and the related version of NARD pose (...) a threat to physicalism. Responses from physicalism and their limitations are also considered. (shrink)

The idea of this paper is to put actual qualia into equations (broadly understood) to get what might be called qualations. Qualations arguably have different meanings and truth behaviors than the analogous equations. For example, the term ‘ black ’ arguably has a different meaning and behavior than the term ‘ █ ’. This is a step in the direction of a ‘calculus of qualia’ and of expanding science to include 1st-person phenomena.

According to Brentano, mentality is essentially intentional in nature. Other philosophers have emphasized the phenomenal-qualitative aspect of conscious experiences as core to the mind. A recent philosophical wave – the ‘phenomenal intentionality programme’ – seeks to unite these conceptions in the idea that mental content is grounded in phenomenal qualities. However, a philosophical and scientific current, which includes Freud and contemporary cognitive science, makes widespread use of the posit of unconscious mentality/mental content. I aim to reconcile these disparate, influential strands (...) of thought concerning mentality’s essence, by defending a conception of the mark of the mental as consisting in content-carrying qualitative character (or mental qualities) – but understood as properties that can exist both in conscious (i.e. phenomenal) form and unconsciously. I describe this conception, deal with major historical objections to the notions of unconscious qualitative character and mentality, and explain the virtues of construing the mark of the mental in this way. (shrink)

In questo lavoro distinguo tra due versioni della tesi del carattere incarnato della mente: “debole” e “forte”. Secondo la versione debole, il possesso di stati mentali presuppone l’esistenza di un corpo che si muove ed agisce nell’ambiente, ossia un corpo funzionale. Secondo la versione forte, invece, il possesso di stati mentali presuppone l’esistenza di un corpo non solo funzionale ma anche senziente, ossia: il corpo come sede della sensibilità o coscienza fenomenica. Sostengo che alcuni approcci all’interno della “scienza cognitiva incarnata” (...) implicano la forma debole di embodiment : la robotica di Brooks, l’enattivismo sensomotorio di Noë e O’Regan e l’enattivismo radicale di Hutto e Myin. In contrapposizione a queste prospettive, e basandomi sull’analisi fenomenologica della corporeità vivente e vissuta, difendo la forma forte di embodiment, secondo cui la mente si fonda essenzialmente sul corpo funzionale e senziente. Parole chiave: Fenomenologia; Embodiment; Coscienza fenomenica; Enattivismo; Qualità sensibili -/- Abstract (english) -/- Functional body and sentient body. The strong view on the embodied mind in phenomenology: In this paper, I draw a distinction between weak and strong versions of the “embodiment thesis”. The weak version claims that mental states are grounded in a body that moves and acts in the environment, i.e., a functional body. The strong version claims that mental states are grounded in a body that is not only functional but also sentient, i.e., a body that is the locus of sensibility or phenomenal consciousness. I argue that some approaches within the “new embodied cognitive science” – Brooks’ robotics, Noë’s and O’Regan’s sensorimotor enactivism, Hutto’s and Myin’s radical enactivism – imply a weak version of the embodiment thesis. In contrast, by drawing on a phenomenological analysis of living and lived corporeality, I argue for the strong version, which claims that the mind is essentially grounded in the functional and sentient body. Keywords: Phenomenology; Embodiment; Phenomenal Consciousness; Enactivism; Sensible Qualities. (shrink)

This very brief but conceptually dense article provides a useful definition of consciousness, puts self consciousness into proper perspective, clarifies the nature of time, change and inertia, and ties consciousness to the foundations of physics as the inherent and fundamental process in nature. It is an implicit argument for a type of (proto) panpsychism or panexperientialism.

Accounting for qualia in the natural world is a difficult business, and it is worth understanding why. A close examination of several theories of mind—Behaviorism, Identity Theory, Functionalism, and Integrated Information Theory—will be discussed, revealing shortcomings for these theories in explaining the contents of conscious experience: qualia. It will be argued that in order to overcome the main difficulty of these theories the senses should be interpreted as physical detectors. A new theory, Grounded Functionalism, will be proposed, which retains multiple (...) realizability while allowing for a scientifically based approach toward accounting for qualia in the natural world. (shrink)

In this paper, I will propose a provisional blueprint of the notion of consciousness. I will start an analysis of the notion from the way we generally use the term “consciousness” in our ordinary language. In this regard, I will use Saul Kripke’s direct reference theory to define the term “consciousness” in a non-descriptive way, that is, interpreting it as a rigid designator. Then, I will critically discuss the idea of a necessary a posteriori relationship between consciousness and brain activity, (...) arguing instead that consciousness is intrinsically related to the concept of subjectivity. (shrink)

Why is there something rather than nothing? I don’t know. But ‘nothing’ may not be the correct default state. It may be that the existence of possibilities requires fewer (weaker) assumptions. In this case, arguably, we should start with the existence of possibilities and not ‘nothing’. In this case, there exists the possibility of (for example) red qualia. But the possible existence of a red quale does not delineate what it is the possibility of if the possibility contains only a (...) reference to red. Instead, the possibility must contain an actual instance of red to delineate what it is the possibility of. But, if possibilities are the weakest and (therefore) starting assumption, and the possibility of a red quale must itself contain an instance of red, then red exists necessarily. This argument would work for all qualia. Further, it could be that physical things and physical laws are (in some sense) instances of qualia. Incidentally, this would solve the problem of evil: pain, too, is made of qualia. These considerations align with some suggestions by Leibniz. (shrink)

Is it possible to build a conscious machine, an artifact that has qualitative experiences such as feeling pain, seeing the redness of a flower or enjoying the taste of coffee ? What makes such experiences conscious is their phenomenal character: it is like something to have such experiences. In contemporary philosophy of mind, the question of the qualitative aspect of conscious experiences is often addressed in terms of qualia. In a pre-theoretical and intuitive sense, qualia refer to the phenomenal character (...) or “what-it’s-like-ness” of a conscious experience: the painfulness of a pain experience or the redness of a visual experience of a red object. The problem of artificial qualia is the question of the theoretical possibility of the realization of qualia by artifacts. In this work, this problem will serve as a methodological tool to address what is arguably the most fundamental question of philosophy of mind: what exactly is consciousness? (shrink)

David Chalmers maintains there is a logically possible world (Z) where we all have physically and functionally identical twins without conscious experiences. Z entails that qualia are extra-physical, hence physicalism is false. I argue that his Zombie Argument (ZA) fails on functionalist grounds. Qualia sometimes affect behavior or they never do. If they do affect behavior, they sometimes individuate functional states; hence my zombie twin cannot be functionally identical to me. To save ZA, we must support the second disjunct. This (...) requires arguing that qualia are extra-physical; otherwise why wouldn’t they affect behavior? Suppose we find such an argument. But now ZA is idle. The supposedly successful argument that qualia are extra-physical does all the work. Hence Z is impossible or ZA is idle. (shrink)