The dissertation addresses the mind-body problem, and in particular, the problem of how to fit phenomenal consciousness into the rest of reality. Phenomenal consciousness - the what it’s like feature of experience - can appear to the scientifically inclined philosopher to be deeply mysterious. It is difficult to understand how the swirl of atoms in the void, the oscillation of field values, the firing of synapses, or anything physical can add up to the smells, tastes, feelings, moods, and so forth (...) that comprise our phenomenal experience. There is a series of arguments - the so-called “Conceivability Arguments” - that spells out this puzzlement. If this arguments are successful then there is no place for phenomenal consciousness in a completely physical reality. The main conclusion of this dissertation is that the Conceivability Arguments are all dependent on a flawed premiss, and that therefore these arguments - perhaps the most powerful among anti-physicalist arguments - all fail. Conceivability Arguments begin with the premiss that we can conceive of any physical or functional facts obtaining without there being any phenomenal experience at all. This is sometimes expressed by saying that zombies (i.e., beings that are our physical and functional duplicates, but possess no phenomenal experiences) are conceivable. The claim that zombies are conceivable does not have to do with our powers of imagination, or our psychological abilities, but rather with the nature of physical and phenomenal concepts. The reason that zombies are claimed to be conceivable is that each person’s thinking about phenomenal properties is completely dependent on her first person acquaintance with her own experience. From this assertion of conceivability it is inferred that zombies are genuinely possible. And this conclusion is incompatible with physicalism as that doctrine is usually understood. I argue that these arguments all fail; they are refuted by a master argument that I call “the Zombie Refutation.” The reason they fail has to do with the very nature of phenomenal concepts that gives rise to the conceivability of zombies. Because of the special nature of these concepts, the principle underlying the Conceivability Arguments - that principle that links conceivability and possibility - turns out to be self-refuting. Thus, the zombies that the Conceivability Arguments supposedly demonstrate to be possible, return to undermine those very arguments; a fitting revenge. (shrink)

The dissertation is in the format of a collection of several academic texts, composed of a two-part presentation and three papers on the topic of conceivability and the epistemology of modality. The presentation is composed of, first, a general introduction to conceivability theses and objections and, second, a discussion of two cases. Following the presentation, Asger provides three papers. The first paper, Pretense and Conceivability: A reply to Roca-Royes, presents a problem and a dilemma for Roca-Royes’ Non-Standard (...) Dilemma for conceivability-based epistemologies of de re modality in which she concludes that conceivability cannot be the whole story of our de re modal knowledge. The second paper, Conceivability Externalized, proposes an externalist conceivability-based epistemology of possibility inspired by Stalnaker. The third paper, Inconceivability as a Guide to Impossibility, considers inconceivability as an epistemic guide to impossibility, aiming to explore and add support to the underexplored thesis that one can justify beliefs about the impossibility of P on the basis of the inconceivability of P. (shrink)

Some people might be tempted by modal ontological arguments from the possibility that God exists to the conclusion that God in fact exists. They might also be tempted to support the claim that possibly God exists by appealing to the conceivability of God’s existence. In this chapter, I introduce three constraints on an adequate theory of philosophical conceivability. I then consider and develop both imagination-based accounts of conceivability and conceptual coherence-based accounts of conceivability. Finally, I return (...) to the modal ontological argument and consider whether the premise that possibly God exists can be supported by some conceiving. (shrink)

Chalmers argues that zombies are possible and that therefore consciousness does not supervene on physical facts, which shows the falsity of materialism. The crucial step in this argument – that zombies are possible – follows from their conceivability and hence depends on assuming that conceivability implies possibility. But while Chalmers’s defense of this assumption – call it the conceivability principle – is the key part of his argument, it has not been well understood. As I see it, (...) Chalmers’s defense of the conceivability principle comes in his response to the so-called objection from a posteriori necessity. The defense aims at showing that there is no gap between conceivability and possibility since no such gap can be generated by necessary a posteriori truths. I will argue that while Chalmers is right to the extent that there is no gap between conceivability and possibility within the standard Kripkean model of a posteriori necessity, his general conclusion is not justified. This is because the conceivability principle might be inconsistent with a posteriori necessity understood in some non-Kripkean way and Chalmers has not shown that no such alternative understanding of a posteriori necessity is available. (shrink)

Christopher Hill contends that the metaphysical modalities can be reductively explained in terms of the subjunctive conditional and that this reductive explanation yields two tests for determining the metaphysical modality of a proposition. He goes on to argue that his reductive account of the metaphysical modalities in conjunction with his account of modal knowledge underwrites the further conclusion that conceivability does not provide a reliable test for metaphysical possibility. I argue (1) that Hill’s reductive explanation of the metaphysical modalities (...) in terms of the subjunctive conditional does not yield a reductive explanation of knowledge of metaphysical modality in terms of knowledge of subjunctive conditionals, and (2) that his account of modal knowledge is at odds with his contention that conceivability does not provide epistemic access to metaphysical possibility. (shrink)

The starting point of this paper is an argument to the conclusion that the definition of metaphysical possibility in terms of correct conceivability, conceivability informed by knowledge of relevant essences, found in Rosen (2006) is equivalent to a version of the essentialist definition of metaphysical necessity. This argument appears to show that correct conceivability is a notion of conceivability by name only and is therefore of no interest to epistemologists of modality. In this paper, I present (...) the equivalence argument, explain the idealizing assumptions involved in it and sketch a version of the conceivability approach which weakens these assumptions in order to show that the notion of correct conceivability can still play a specific limited role in the epistemology of modality. (shrink)

In a recent paper, Dennis Plaisted examines an important argument that Leibniz gives for the existence of primitive concepts. After sketching a natural reading of this argument, Plaisted observes that the argument appears to imply something clearly inconsistent with Leibniz’s other views. To save Leibniz from contradiction, Plaisted offers a revision. However, his account faces a number of serious difficulties and therefore does not successfully eliminate the inconsistency. We explain these difficulties and defend a more plausible alternative. In the process, (...) we call attention to the neglected topic of Leibniz’s views on the nature of conceiving, and reveal his commitment to the somewhat surprising thesis that one can conceive something through a concept even if one has no conscious grasp of that concept. (shrink)

The Humean view that conceivability entails possibility can be criticized via input from cognitive psychology. A mainstream view here has it that there are two candidate codings for mental representations (one of them being, according to some, reducible to the other): the linguistic and the pictorial, the difference between the two consisting in the degree of arbitrariness of the representation relation. If the conceivability of P at issue for Humeans involves the having of a linguistic mental representation, then (...) it is easy to show that we can conceive the impossible, for impossibilities can be represented by meaningful bits of language. If the conceivability of P amounts to the pictorial imaginability of a situation verifying P, then the question is whether the imagination at issue works purely qualitatively, that is, only by phenomenological resemblance with the imagined scenario. If so, the range of situations imaginable in this way is too limited to have a significant role in modal epistemology. If not, imagination will involve some arbitrary labeling component, which turns out to be sufficient for imagining the impossible. And if the relevant imagination is neither linguistic nor pictorial, Humeans will appear to resort to some representational magic, until they come up with a theory of a ‘third code’ for mental representations. (shrink)

This paper was chosen by The Philosopher’s Annual as one of the ten best articles appearing in print in 2000. Reprinted in Volume XXIII of The Philosopher’s Annual. In his very influential book David Chalmers argues that if physicalism is true then every positive truth is a priori entailed by the full physical description – this is called “the a priori entailment thesis – but ascriptions of phenomenal consciousness are not so entailed and he concludes that Physicalism is false. As (...) he puts it, “zombies” are metaphysically possible. I attempt to show that this argument is refuted by considering an analogous argument in the mouth of a zombie. The conclusion of this argument is false so one of the premises is false. I argue at length that this shows that the original conceivability argument also has a false premise and so is invalid. (shrink)

I present an approach to our conceiving absolute impossibilities—things which obtain at no possible world—in terms of ceteris paribus intentional operators: variably restricted quantifiers on possible and impossible worlds based on world similarity. The explicit content of a representation plays a role similar in some respects to the one of a ceteris paribus conditional antecedent. I discuss how such operators invalidate logical closure for conceivability, and how similarity works when impossible worlds are around. Unlike what happens with ceteris paribus (...) counterfactual conditionals, the closest worlds are relevantly closest belief-worlds: closest to how things are believed to be, rather than to how they are. Also, closeness takes into account apriority and the opacity of intentional contexts. (shrink)

Chalmers argues that ideal conceivability (conceivability on ideal rational reflection) entails possibility and on this basis assumes that zombies are possible and, therefore, that materialism is false. I argue that the paradigm cases of conceivability intuitions that Chalmers takes to be reliable guides to possibility are not only conceptually coherent, even on ideal rational reflection, but in addition have some rational explanation. The conceivability of zombies, however, has no rational explanation. So it is not ad hoc (...) to deny that the conceivability of zombies entails possibility. (shrink)

This paper challenges the soundness of the two-dimensional conceivability argument against the derivation of phenomenal truths from physical truths in light of a hyperintensional, ground-theoretic regimentation of the ontology of consciousness. The regimentation demonstrates how ontological dependencies between truths about consciousness and about physics cannot be witnessed by epistemic constraints, when the latter are recorded by the conceivability—i.e., the epistemic possibility—thereof. Generalizations and other aspects of the philosophical significance of the hyperintensional regimentation are further examined.

Classical Greek philosophy in its struggle to grasp the material world from its very beginning has been marked by the – sometimes undercurrent, some others overt and even intense, but never idle – juxtaposition between the mind and the senses, logos and perception or, if the anachronism is allowed, between realism and idealism. Parmenides is reportedly the first philosopher to insistently assert that thought and being are the same by his famous aphorism τὸ γὰρ αὐτὸ νοεῖν ἐστί τε καὶ εἶναι, (...) and that the “way of truth”, as opposed to the “way of opinion”, only runs through the intellect, since the truth is unattainable by the illusory senses. Thus, true may be only what our intellect can firmly grasp, and – by an easy, though not equally sound step – vice versa: that which our intellect can firmly grasp is necessarily true. In this paper I intend to set off Parmenides’ apparent influence on Anselm with regard to the latter’s celebrated ontological argument concerning the existence of God, and the influence of both on Spinoza’s Ethica, which is founded on the key tenet that not only does God necessarily exist – since God is intellectually conceivable –, but that God also by necessity is an utterly good one. (shrink)

This paper provides a rebuttal to the argument in Khudairi (2018) in `Synthese'. Khudairi provides a novel hyperintensional, ground-theoretic regimentation of the proposals in the metaphysics of consciousness. He then argues that Chalmers' (2010) intensional two-dimensional conceivability argument against physicalism is unsound, in light of the hyperintensional metaphysics of consciousness. Thus, intensional conceivability cannot be a guide to hyperintensional metaphysics. This paper demonstrates that a multi-hyperintensional version of epistemic two-dimensional semantics can be countenanced, and is sufficient for (...) class='Hi'>conceivability to be a guide to metaphysics in the hyperintensional setting such that Chalmers' argument, hyperintensionally construed, is in fact sound. (shrink)

In this paper, we argue that ‘Weak Modal Rationalism’, which is the view that ideal primary positive conceivability entails primary metaphysical possibility, is self-defeating. To this end, we outline two reductio arguments against ‘Weak Modal Rationalism’. The first reductio shows that, from supposing that ‘Weak Modal Rationalism’ is true, it follows that conceivability both is and is not conclusive evidence for possibility. The second reductio shows that, from supposing that ‘Weak Modal Rationalism’ is true, it follows that it (...) is possible that ‘Weak Modal Rationalism’ is necessarily false, and hence that ‘Weak Modal Rationalism’ is false. We then argue that adopting a weaker position according to which conceivability is merely prima facie evidence for possibility provides limited protection from our criticism of conceivability arguments. (shrink)

Famous examples of conceivability arguments include (i) Descartes’ argument for mind-body dualism, (ii) Kripke's ‘modal argument’ against psychophysical identity theory, (iii) Chalmers’ ‘zombie argument’ against materialism, and (iv) modal versions of the ontological argument for theism. In this paper, we show that for any such conceivability argument, C, there is a corresponding ‘mirror argument’, M. M is deductively valid and has a conclusion that contradicts C's conclusion. Hence, a proponent of C—henceforth, a ‘conceivabilist’—can be warranted in holding that (...) C's premises are conjointly true only if she can find fault with one of M's premises. But M's premises are modelled on a pair of C's premises. The same reasoning that supports the latter supports the former. For this reason, a conceivabilist can repudiate M's premises only on pain of severely undermining C's premises. We conclude on this basis that all conceivability arguments, including each of (i)–(iv), are fallacious. (shrink)

In his 1998 postscript to ‘The Possibility of Resurrection’ Peter van Inwagen argues that the scenario he describes by which God might resurrect a human organism, even though probably not true, is still conceivable and, consequently, ‘serves to establish a possibility’, namely, the metaphysical possibility of the resurrection of material beings. Van Inwagen, however, has also argued in favour of ‘modal scepticism’ [van Inwagen in, God, knowledge and mystery: essays in philosophical theology, Cornell University Press, Ithaca 1995b, pp. 11–12; van (...) Inwagen in, Philos Stud 92:67–84, 1998a]. That is, he thinks that we should limit all our claims about what is possible to ‘ordinary propositions about everyday matters’, 1998a). In this paper I argue that van Inwagen’s modal argument as found in ‘The Possibility of Resurrection’ is inconsistent with his modal scepticism as found in ‘Modal Epistemology’. In consequence, I argue that, given his modal scepticism, the task van Inwagen set himself in ‘The Possibility of Resurrection’ has not been achieved. (shrink)

I argue that if we have a rich enough description of perceptual experiences from an information-theoretic viewpoint, it becomes surprisingly difficult (to put it mildly) to positively conceive philosophical zombies (as complete physical/functional duplicates that lack phenomenal consciousness). Hence, it is at best an open question whether zombies are positively conceivable. My argument requires paying close attention to the direct relation between phenomenology and information.

One’s involvement with the world seems limited merely to things as they are; hence, modal knowledge—knowledge of what could be or must be simpliciter—should be perplexing. Traditionally, the notion of conceivability has been regarded as crucial to an account of modal knowledge. I believe one has a good deal of such knowledge (though perhaps less than others presume one has). I maintain, however, that conceiving is utterly idle in acquiring modal knowledge: the conceivability of a proposition can provide (...) no evidence whatsoever that what it represents is possible. To show this, I first examine the basis of modal knowledge. I consider what conceivability in general is supposed to be and argue, in light of the preceding considerations, that conceivability is not epistemically efficacious, in the sense of providing evidence, on any proposed specific account. I then maintain that there could be no account of conceivability on which it is epistemically efficacious, that the very idea of the conceivability of a proposition being evidential is misguided. I conclude with some brief recommendations for pursuing a satisfactory modal epistemology. (shrink)

This essay aims to redress the contention that epistemic possibility cannot be a guide to the principles of modal metaphysics. I introduce a novel epistemic two-dimensional truthmaker semantics. I argue that the interaction between the two-dimensional framework and the mereological parthood relation, which is super-rigid, enables epistemic possibilities and truthmakers with regard to parthood to be a guide to its metaphysical profile. I specify, further, a two-dimensional formula encoding the relation between the epistemic possibility and verification of essential properties obtaining (...) and their metaphysical possibility or verification. I then generalize the approach to haecceitistic properties. I also examine the Julius Caesar problem as a test case. I conclude by addressing objections from the indeterminacy of ontological principles relative to the space of epistemic possibilities, and from the consistency of epistemic modal space. (shrink)

In the history of modern philosophy systematic connections were assumed to hold between the modal concepts of logical possibility and necessity and the concept of conceivability. However, in the eyes of many contemporary philosophers, insuperable objections face any attempt to analyze the modal concepts in terms of conceivability. It is important to keep in mind that a philosophical explanation of modality does not have to take the form of a reductive analysis. In this paper I attempt to provide (...) a response-dependent account of the modal concepts in terms of conceivability along the lines of a nonreductive model of explanation. (shrink)

Thomas Reid is notorious for rejecting the orthodox theory of conception (OTC), according to which conceiving of an object involves a mental relationship to an idea of that object. In this paper, I examine the question of what this rejection amounts to, when we limit our attention to bare conception (rather than the more widely discussed case of perception). I present some of the purported advantages of OTC, and assess whether they provide a genuine basis for preferring OTC to a (...) Reidian alternative. I argue that Reid’s approach is no worse off than OTC at explaining intentionality of our conceptions, and suggest that OTC diverges less from Reid’s view than it would at first seem. (shrink)

The Phenomenal Concept Strategy offers the physicalist perhaps the most promising means of explaining why the connection between mental facts and physical facts appears to be contingent even though it is not. In this article, we show that the large body of evidence suggesting that our concepts are often embodied and grounded in sensorimotor systems speaks against standard forms of the PCS. We argue, nevertheless, that it is possible to formulate a novel version of the PCS that is thoroughly in (...) keeping with embodied cognition, focuses on features of physical concepts, and succeeds in explaining the appearance of contingency. (shrink)

Conceivability is an important source of our beliefs about what is possible; inconceivability is an important source of our beliefs about what is impossible. What are the connections between the reliability of these sources? If one is reliable, does it follow that the other is also reliable? The central contention of this paper is that suitably qualified the reliability of inconceivability implies the reliability of conceivability, but the reliability of conceivability fails to imply the reliability of inconceivability.

Many approaches to addressing labour injustices—shortfalls from minimally decent wages and working conditions— focus on how governments should orient themselves toward other states in which such phenomena take place, or to the firms that are involved with such practices. But of course the question of how to regard such labour practices must also be faced by individuals, and individual consumers of the goods that are produced through these practices in particular. Consumers have become increasingly aware of their connections to complex (...) global production processes that often involve such injustice. For example, activist campaigns have exposed wrongful harm in factories producing clothes, shoes and mobile phones and farms producing coffee, tea and cocoa. These campaigns have promoted the message to ordinary people that by becoming connected to unjust labour practices through their purchasing behaviour, they acquire special additional moral responsibilities to contribute to reforming such practices, or to address the hardships suffered by the victims of the wrongdoing that result from them. The moral significance of the responsibilities of individual consumers has not, however, received much analytical scrutiny. Why should we believe that there are such responsibilities? And if there are such responsibilities, what are their grounds? How stringent are the responsibilities triggered by such connections? Finally, what are the implications of such responsibilities—the courses of action that they prescribe or proscribe? The activists who assert special ethical responsibilities for consumers have promoted many particular courses of action, but have seldom articulated the grounds of these responsibilities or explained why they should be taken to be stringent. And moral and political theorists have not devoted much focussed attention to this issue. For the consumer who is concerned to act in a morally permissible way, this presents a troubling practical challenge regarding the goods they may (or may not) purchase, and the moral relevance of their consumption choices more generally. While we cannot address all of these pressing questions in this chapter, we try to make some headway with them by discussing two general approaches to the question of how individuals should conceive of their responsibilities with respect to such practices, taking as our starting point the recent work of the late Iris Marion Young—the most sustained treatment of this topic by a prominent political theorist. In a series of influential articles and a posthumously published book, Young articulated an approach to conceiving of individual responsibilities to address labour injustices—the social connection model—at home and abroad. She also argued that an alternative model—the liability model—which she claimed had dominated discourse on this topic, suffered from very serious flaws. In a critical vein, we will argue that Young’s arguments against the liability model are not convincing, and that the alternative she proposes is itself vulnerable to some damaging objections. We also find, however, that the liability model would need to be extended in various ways to provide an adequate account of individual responsibility to address shortfalls from minimally decent wages and working conditions, and we begin the task of sketching an extended framework. (shrink)

The cognitive phenomenology thesis has it that conscious cognitive states essentially exhibit a phenomenal character. Defenders of ‘conservatism’ about cognitive phenomenology think that the phenomenology of thought is reducible to sensory phenomenology. In contrast, proponents of ‘liberalism’ hold that there is a proprietary, sui generis cognitive phenomenology. Horgan develops a morph-sequence argument to argue for liberalism. The argument is based on the conceivability of a cognitive phenomenology zombie, i.e. a man who does not understand Chinese but shares the behavior (...) and sensory phenomenology with his twin who does understand Chinese. I argue that the conceivability of a cognitive phenomenology-zombie fails to settle the debate between conservatives and liberals. The roots of the ineffectiveness of the argument lie in the diverse readings of sensory phenomenology which flesh out the relation between sensory phenomenology and concepts differently but explain the conceivability of the scenario equally well. The lesson to learn is that to adjudicate the debate about cognitive phenomenology, we first have to clarify the notion of sensory phenomenology. (shrink)

In the sixth chapter of The View from Nowhere, Thomas Nagel aims to identify a form of idealism, to isolate the argument for it and to counter this argument. The position that Nagel takes to be idealist is that what there is must be possibly conceivable by us. In this paper, I show that Nagel has not made a convincing case against this position. I then present an alternative case. In light of this alternative case, we have reason to reject (...) an important example that Nagel offers of a contemporary idealist, namely Donald Davidson. (shrink)

The superassertability theory of truth, inspired by Crispin Wright (1992, 2003), holds that a statement is true if and only if it is superassertable in the following sense: it possesses warrant that cannot be defeated by any improvement of our information. While initially promising, the superassertability theory of truth is vulnerable to a persistent difficulty highlighted by James Van Cleve (1996) and Terrence Horgan (1995) but not properly fleshed out: it is formally illegitimate in a similar sense that unsophisticated epistemic (...) theories of truth are widely acknowledged to be. Sustained analysis reveals that the unrestricted formal legitimacy argument is firmly grounded in first person conceivability evidence. (shrink)

In this paper I begin by explaining the concept of supervenience. I then describe the problem of qualia and explain why qualia are a problem for physicalist theories of the mind. Next, I outline the zombie argument and explain Chalmers' attempt to use it as an argument for the conclusion that qualia do not logically supervene on the physical. My goal is to show that the supposed conceivability of zombies does not offer any serious refutation of physicalist theories of (...) the mind. (shrink)

In this paper, I argue that, if transcendental arguments are to proceed from premises that are acceptable to the skeptic, the Transcendental Premise, according to which “X is a metaphysically necessary condition for the possibility of Y,” must be grounded in considerations of conceivability and possibility. More explicitly, the Transcendental Premise is based on what Szabó Gendler and Hawthorne call the “conceivability-possibility move.” This “inconceivability-impossibility” move, however, is a problematic argumentative move when advancing transcendental arguments for the following (...) reasons. First, from “S cannot conceive of P” it doesn’t necessarily follow that P is inconceivable. Second, from “P is inconceivable” it doesn’t necessarily follow that P is metaphysically impossible. Third, rather than block skeptical doubts, the conceivability-possibility move introduces skeptical doubts. For these reasons, transcendental arguments fail to deliver on their promise to overcome skeptical doubts. (shrink)

In this paper I suggest a new interpretation of the relations of inherence, causation and conception in Spinoza. I discuss the views of Don Garrett on this issue and argue against Della Rocca's recent suggestion that a strict endorsement of the PSR leads necessarily to the identification of the relations of inherence, causation and conception. I argue that Spinoza never endorsed this identity, and that Della Rocca's suggestion could not be considered as a legitimate reconstruction or friendly amendment to Spinoza (...) 's system because it creates several severe and irresolvable problems in the system. -/- In the first part of the paper, I present the considerations and arguments that motivated Don Garrett's and Della Rocca's interpretations. In the second part, I present and examine several problems that result from Della Rocca's reading. In the third and final part, I present my own view on the relation among inherence, causation, and conception; offer a new interpretation of the conceived through relation in Spinoza ; and finally, defend and justify the presence of bifurcations at the very center of Spinoza 's system. (shrink)

During the 13th century, several logicians in the Latin medieval tradition showed a special interest in the nature of impossibility, and in the different kinds or ‘degrees’ of impossibility that could be distinguished. This discussion resulted in an analysis of the modal concept with a fineness of grain unprecedented in earlier modal accounts. Of the several divisions of the term ‘impossible’ that were offered, one became particularly relevant in connection with the debate on ars obligatoria and positio impossibilis: the distinction (...) between ‘intelligible’ and ‘unintelligible’ impossibilities. In this article, I consider some 13th-century tracts on obligations that provide an account of the relation between impossibility and intelligibility and discuss the inferential principles that are permissible when we reason from an impossible – but intelligible – premise. I also explore the way in which the 13th-century reflection on this topic survives, in a revised form, in some early 14th-century accounts of positio, namely, those of William of Ockham, Roger Swineshead and Thomas Bradwardine. (shrink)

The article aims to substantiate the philosophy of synthesis, which is built on the basis of analysis, but gives it a constructive direction. The turning point from analysis to synthesis is the problematization of the elements identified in the analysis, their criticism, replacement, or rearrangement, leading to the construction of alternative concepts and propositions that expand the field of the thinkable and innovate the categorical apparatus of philosophy. This article provides examples of philosophical synthesis at different levels: alternative terms and (...) concepts (“infinition”), postulates (the “diamond rule” in ethics), and disciplines (“horrology” as the study of the self-destructive mechanisms of civilization). Next, we consider the transition from the philosophy of synthesis to the synthesis of philosophy itself with contemporary scientific and technical practices. Technology of the 21st century is no longer instrumental/utilitarian, but a fundamental technology ("onto–technology"), which, thanks to science’s penetration into the micro- and macrocosm, can change the foundational parameters of being, thereby acquiring a philosophical dimension. Accordingly, philosophy as a study of the most general principles of the universe becomes a practical requirement in any “world-forming,” synthesizing acts of technology, including the design of computer games and multi-populated virtual worlds (e.g., “Second Life”), that involve a new ontology, logic, ethics, and axiology. The vocation of philosophy in the 21st century is not just to comprehend our unique world, but to lay the foundations for new world-forming practices, to initiate and design the ontology of possible worlds, and to pave the way for alternative forms of synthetic life and artificial intelligence. Contrary to Hegel, philosophy is no longer the “owl of Minerva” taking flight at dusk, but a skylark proclaiming the dawn of a new creative day. -/- . (shrink)

In this paper, I argue that Schelling’s charge against Hegel that reason is bounded by something other than itself is the conclusion to a transcendental argument in Ages of the World (1811–15) to the effect that past and future represent conditions of the possibility of reason itself.

Our limited a priori-reasoning skills open a gap between our finding a proposition conceivable and its metaphysical possibility. A prominent strategy for closing this gap is the postulation of ideal conceivers, who suffer from no such limitations. In this paper I argue that, under many, maybe all, plausible unpackings of the notion of ideal conceiver, it is false that ideal negative conceivability entails possibility.

Spinoza's Ethics self-consciously follows the example of Euclid and other geometers in its use of axioms and definitions as the basis for derivations of hundreds of propositions of philosophical si...

In this article I trace some of the main tenets of the struggle between nominalism and realism as identified by John Deely in his Four ages of understanding. The aim is to assess Deely’s claim that the Age of Modernity was nominalist and that the coming age, the Age of Postmodernism — which he portrays as a renaissance of the late middle ages and as starting with Peirce — is realist. After a general overview of how Peirce interpreted the nominalist-realist (...) controversy, Deely gives special attention to Thomas Aquinas’s On being and essence and the realism it entails. A subsequent discussion of the Modern Period shows that the issue of nominalism and realism is very much tied up with di¤erent conceptions of the intellect. Deely credits the theory of evolution with bringing us a conception of the intellect that is closer to that of the Middle Ages and that opens the way for a truly realistic ‘‘fourth age’’ of the understanding. (shrink)

It is widely held that it is good to conceive of one's life narratively, but why this is the case has not been well established. I argue that conceiving of one's life narratively can contribute to one's flourishing by mediating to oneself a second-person experience of oneself, furnishing one with valuable second-personal productive distance from oneself and as a result self-understanding. Drawing on Eleonore Stump's theory that narratives re-present to their audiences the second-person experiences they depict, I argue that conceiving (...) of one's life narratively facilitates taking on the second-person experience that an audience would have in hearing one's life narrative, mediating how someone from a second-person perspective might perceive oneself and as a result yielding valuable self-understanding. I conclude with some practical implications. (shrink)

(2014). A Priori Conditionals and the Conceivability of Zombies. Philosophical Papers: Vol. 43, No. 2, pp. 227-253.

Monism is our name for a range of views according to which the connection between dispositions and their categorical bases is intimate and necessary, or on which there are no categorical bases at all. In contrast, Dualist views hold that the connection between dispositions and their categorical bases is distant and contingent. This paper is a defence of Monism against an influential conceivability argument in favour of Dualism. The argument suggests that the apparent possibility of causal behaviour coming apart (...) from categorical bases is best explained by Dualism. We argue that Monism can explain the apparent possibility as well, if we take metaphysically alien laws — namely, laws whose metaphysical nature is alien to the actual world — into account. (shrink)

In this paper, we consider what is commonly referred to as Leibniz’s argument for primitive concepts. After presenting and criticizing (in sections 1 and 2) one recent rather straightforward way of interpreting this argument, by Paul Lodge and Stephen Puryear, which takes the argument to be merely about the structure of concepts, we offer an alternative way of looking at the argument. We think it is best seen as being fundamentally about the relation between thought and reality. In order to (...) prepare the ground for our reconstruction (which we present in section 5), we have to introduce his view of ideas or concepts (section 3), as well as some metaphysical principles concerning reality-dependence (section 4). (shrink)

The project “A Plurality of Lives” was funded and hosted by the Pufendorf Institute for Advanced Studies at Lund University, Sweden. The aim of the project was to better understand how a second origin of life, either in the form of a discovery of extraterrestrial life, life developed in a laboratory, or machines equipped with abilities previously only ascribed to living beings, will change how we understand and relate to life. Because of the inherently interdisciplinary nature of the project aim, (...) the project took an interdisciplinary approach with a research group made up of 12 senior researchers representing 12 different disciplines. The project resulted in a joint volume, an international symposium, several new projects, and a network of researchers in the field, all continuing to communicate about and advance the aim of the project. (shrink)

Hydranencephaly is a developmental malady, where the cerebral hemispheres of the brain are reduced partly or entirely too membranous sacs filled with cerebrospinal fluid. Infants with this malady are presumed to have reduced life expectancy with a survival of weeks to few years and which solely depends on care and fostering of these individuals. During their life span these individuals demonstrate behaviours that are termed “vegetative” by neuroscientists but can be comparable to the state of being “aware” or “conscious”. Based (...) on the most simplified definition for consciousness i.e. “awareness” or “to be aware”, these individuals are undeniably aware of their existence and therefore should be termed “conscious”. The bigoted approach of neuroscience towards understanding consciousness is usually linked with the cortex of the brain and therefore a malady as hydranencephaly poses a great challenge to this field. This paper is a compilation of behaviours and aptitudes observed in several cases of hydranencephaly which suggests, that consciousness is not just a brain process, but is a highly quantum computed process that follows laws of quantum physics, giving rise to the subjective experience of consciousness in these individuals. (shrink)

This paper argues that Spinoza held substances other than God to be inconceivable. It uses this claim to develop a novel response to the Problem of Other Substances, the problem of explaining why some of Spinoza’s proofs for God’s existence cannot be used to prove the existence of a non-divine substance instead.

This paper aims to show that David Chalmers' conceivability argument against physicalism, as presented in his 1996 book, The Conscious Mind, is inconclusive. The key point is that, while the argument seems to assume that someone competent with a given concept thereby has access to the primary intension of the concept, there are physicalist-friendly views of conceptual competence which imply that this assumption is not true.

Philosophers have argued that the conceivability of philosophical zom- bies creates problems for physicalism. In response, it has been argued that zombies are not conceivable. Eric Marcus (2004), for example, challenges the conceivability claim. Torin Alter (2007) argues that Marcus’s argument rests on an overly restrictive principle of imagina- tion. I agree that the argument relies on an overly restrictive principle of imagination, but argue that Alter has not put his finger on the right one. In short, Marcus’s (...) argument fails, but not for the reasons Alter gives. (shrink)

Radical skepticism relies on the hypothesis that one could be completely cut off from the external world. In this paper, I argue that this hypothesis can be rationally motivated by means of a conceivability argument. Subsequently, I submit that this conceivability argument does not furnish a good reason to believe that one could be completely cut off from the external world. To this end, I show that we cannot adequately conceive scenarios that verify the radical skeptical hypothesis. Attempts (...) to do so fall prey to one or another of three pitfalls: they end up incomplete, reveal a deep contradiction or recreate a non-skeptical hypothesis. I use these results to improve upon Pritchard’s recent attempt at undercutting radical skepticism. (shrink)

We ask how to use machine learning to expand observability, which presently depends on human learning that informs conceivability. The issue is engaged by considering the question of correspondence between conceived observability counterfactuals and observable, yet so far unobserved or unconceived, states of affairs. A possible answer lies in importing out of reference frame content which could provide means for conceiving further observability counterfactuals. They allow us to define high-fidelity observability, increasing the level of correspondence in question. To achieve (...) high-fidelity observability, we propose to use generative machine learning models as the providers of the out of reference frame content. From an applied point of view, such a role of generative machine learning models shows an emerging dimension of human-machine cooperation. (shrink)

Alleged self-evidence aside, conceivability arguments are one of the main reasons in favor of the claim that there is a Hard Problem. These arguments depend on the appealing Kripkean intuition that there is no difference between appearances and reality in the case of consciousness. I will argue that this intuition rests on overlooking a distinction between cognitive access and consciousness, which has received recently important empirical support. I will show that there are good reasons to believe that the intuition (...) is misguided—at least on the reading that the conceivability arguments require—and hence that the arguments are unsupported. This, in turn, alleviates the Hard Problem but leaves us with what I think is a not easy problem. (shrink)