Floridi’s Theory of Strongly Semantic Information posits the Veridicality Thesis. One motivation is that it can serve as a foundation for information-based epistemology being an alternative to the tripartite theory of knowledge. However, the Veridicality thesis is false, if ‘information’ is to play an explanatory role in human cognition. Another motivation is avoiding the so-called Bar-Hillel/Carnap paradox. But this paradox only seems paradoxical, if ‘information’ and ‘informativeness’ are synonymous, logic is a theory of inference, or validity (...) suffices for rational inference; a, b, and c are false. (shrink)

Is information always true? According to some authors, including Dretske, Grice, Barwise, and recently, Floridi, who has defended the Veridicality Thesis, the answer is positive. For, on Floridi’s view, there is an intimate relation between information and knowledge, which is always true. It is argued in this article that information used in inferential knowledge can, nevertheless, be false, thereby showing that the Veridicality Thesis is false.

This paper contributes to the current debate on the nature of semantic information by offering a semantic argument in favour of the veridical thesis according to which p counts as information only if p is true. In the course of the analysis, the paper reviews some basic principles and requirements for any theory of semantic information.

According to Leibniz's late metaphysics, sensory perception represents to us as extended, colored, textured, etc., a world which fundamentally consists only of non-spatial, colorless entities, the monads. It is a short step from here to the conclusion that sensory perception radically misleads us about the true nature of reality. In this paper, I argue that this oft-repeated claim is false. Leibniz holds that in typical cases of body perception the bodies perceived really exist and have the qualities, both primary and (...) secondary, they are perceived to have. At the same time, Leibniz holds that our perceptions of these bodies are accurate representations of the monads from which the bodies result. The contrary thesis — that our body perceptions are misrepresentations of the monads — stems from a misunderstanding of Leibniz's theory of confused concepts and his phenomenalist account of the nature of body. Clarifying these issues will have important consequences for our understanding of Leibniz's idealistic metaphysics and the manner in which that metaphysical theory is meant to support mechanistic science. (shrink)

The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance theTractable Cognition thesis: Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational‐level theories of cognition. To utilize this constraint, a precise and workable definition of “computational tractability” is needed. Following computer science tradition, many cognitive scientists and psychologists define computational tractability as polynomial‐time computability, leading to theP‐Cognition (...) class='Hi'>thesis. This article explains how and why the P‐Cognition thesis may be overly restrictive, risking the exclusion of veridical computational‐level theories from scientific investigation. An argument is made to replace the P‐Cognition thesis by theFPT‐Cognition thesisas an alternative formalization of the Tractable Cognition thesis (here, FPT stands for fixed‐parameter tractable). Possible objections to the Tractable Cognition thesis, and its proposed formalization, are discussed, and existing misconceptions are clarified. (shrink)

Abstract: According to the Veridicality Thesis, information requires truth. On this view, smoke carries information about there being a fire only if there is a fire, the proposition that the earth has two moons carries information about the earth having two moons only if the earth has two moons, and so on. We reject this Veridicality Thesis. We argue that the main notions of information used in cognitive science and computer science allow A to have information (...) about the obtaining of p even when p is false. (shrink)

This chapter contains sections titled: Information and the Veridicality Thesis Information as a Mongrel Concept Natural Information Without Truth Nonnatural Information: The Case for the Veridicality Thesis Nonnatural Information Without Truth An Objection Conclusion Acknowledgments References.

Semantic information is usually supposed to satisfy the veridicality thesis: p qualifies as semantic information only if p is true. However, what it means for semantic information to be true is often left implicit, with correspondentist interpretations representing the most popular, default option. The article develops an alternative approach, namely a correctness theory of truth (CTT) for semantic information. This is meant as a contribution not only to the philosophy of information but also to the philosophical debate on (...) the nature of truth. After the introduction, in Sect. 2, semantic information is shown to be translatable into propositional semantic information (i). In Sect. 3, i is polarised into a query (Q) and a result (R), qualified by a specific context, a level of abstraction and a purpose. This polarization is normalised in Sect. 4, where [Q + R] is transformed into a Boolean question and its relative yes/no answer [Q + A]. This completes the reduction of the truth of i to the correctness of A. In Sects. 5 and 6, it is argued that (1) A is the correct answer to Q if and only if (2) A correctly saturates Q by verifying and validating it (in the computer science’s sense of “verification” and “validation”); that (2) is the case if and only if (3) [Q + A] generates an adequate model (m) of the relevant system (s) identified by Q; that (3) is the case if and only if (4) m is a proxy of s (in the computer science’s sense of “proxy”) and (5) proximal access to m commutes with the distal access to s (in the category theory’s sense of “commutation”); and that (5) is the case if and only if (6) reading/writing (accessing, in the computer science’s technical sense of the term) m enables one to read/write (access) s. Sect. 7 provides some further clarifications about CTT, in the light of semantic paradoxes. Section 8 draws a general conclusion about the nature of CTT as a theory for systems designers not just systems users. In the course of the article all technical expressions from computer science are explained. (shrink)

Yehoshua Bar-Hillel and Rudolph Carnap’s classical theory of semantic information entails the counterintuitive feature that inconsistent statements convey maximal information. Theories preserving Bar-Hillel and Carnap’s modal intuitions while imposing a veridicality requirement on which statements convey information—such as the theories of Fred Dretske or Luciano Floridi—avoid this commitment, as inconsistent statements are deemed not information-conveying by fiat. This paper produces a pair of paradoxical statements that such “veridical-modal” theories must evaluate as both conveying and not conveying information, although Bar-Hillel (...) and Carnap’s theory accommodates these statements without inconsistency. Moreover, the paradoxes are independently interesting as the mode in which they self-refer bears on their evaluation. (shrink)

One of the open problems in the philosophy of information is whether there is an information logic (IL), different from epistemic (EL) and doxastic logic (DL), which formalises the relation “a is informed that p” (Iap) satisfactorily. In this paper, the problem is solved by arguing that the axiom schemata of the normal modal logic (NML) KTB (also known as B or Br or Brouwer’s system) are well suited to formalise the relation of “being informed”. After having shown that IL (...) can be constructed as an informational reading of KTB, four consequences of a KTB-based IL are explored: information overload; the veridicality thesis (Iap → p); the relation between IL and EL; and the Kp → Bp principle or entailment property, according to which knowledge implies belief. Although these issues are discussed later in the article, they are the motivations behind the development of IL. (shrink)

Semantic information is usually supposed to satisfy the veridicality thesis: p qualifies as semantic information only if p is true. However, what it means for semantic information to be true is often left implicit, with correspondentist interpretations representing the most popular, default option. The article develops an alternative approach, namely a correctness theory of truth (CTT) for semantic information. This is meant as a contribution not only to the philosophy of information but also to the philosophical debate on (...) the nature of truth. After the introduction, in Sect. 2, semantic information is shown to be translatable into propositional semantic information (i). In Sect. 3, i is polarised into a query (Q) and a result (R), qualified by a specific context, a level of abstraction and a purpose. This polarization is normalised in Sect. 4, where [Q + R] is transformed into a Boolean question and its relative yes/no answer [Q + A]. This completes the reduction of the truth of i to the correctness of A. In Sects. 5 and 6, it is argued that (1) A is the correct answer to Q if and only if (2) A correctly saturates Q by verifying and validating it (in the computer science’s sense of verification and validation ); that (2) is the case if and only if (3) [Q + A] generates an adequate model (m) of the relevant system (s) identified by Q; that (3) is the case if and only if (4) m is a proxy of s (in the computer science’s sense of proxy ) and (5) proximal access to m commutes with the distal access to s (in the category theory’s sense of commutation ); and that (5) is the case if and only if (6) reading/writing (accessing, in the computer science’s technical sense of the term) m enables one to read/write (access) s. Sect. 7 provides some further clarifications about CTT, in the light of semantic paradoxes. Section 8 draws a general conclusion about the nature of CTT as a theory for systems designers not just systems users. In the course of the article all technical expressions from computer science are explained. (shrink)

Various conceptual approaches to the notion of information can currently be traced in the literature in logic and formal epistemology. A main issue of disagreement is the attribution of truthfulness to informational data, the so called Veridicality Thesis (Floridi 2005). The notion of Epistemic Constructive Information (Primiero 2007) is one of those rejecting VT. The present paper develops a formal framework for ECI. It extends on the basic approach of Artemov’s logic of proofs (Artemov 1994), representing an epistemic (...) logic based on dependent justifications, where the definition of information relies on a strict distinction from factual truth. The definition obtained by comparison with a Normal Modal Logic translates a constructive logic for “becoming informed”: its distinction from the logic of “being informed”—which internalizes truthfulness—is essential to a general evaluation of information with respect to truth. The formal disentanglement of these two logics, and the description of the modal version of the former as a weaker embedding into the latter, allows for a proper understanding of the Veridicality Thesis with respect to epistemic states defined in terms of information. (shrink)

In The Philosophy of Information, Luciano Floridi presents a theory of “strongly semantic information”, based on the idea that “information encapsulates truth” (the so-called “veridicality thesis”). Starting with Popper, philosophers of science have developed different explications of the notion of verisimilitude or truthlikeness, construed as a combination of truth and information. Thus, the theory of strongly semantic information and the theory of verisimilitude are intimately tied. Yet, with few exceptions, this link has virtually pass unnoticed. In this paper, (...) we briefly survey both theories and offer a critical comparison of strongly semantic information and related notions, like truth, verisimilitude, and partial truth. (shrink)

In this paper I reassess Floridi's solution to the Bar-Hillel-Carnap paradox (the information-yield of inconsistent propositions is maximal) by questioning the orthodox view that contradictions cannot be true. The main part of the paper is devoted to showing that the veridicality thesis (semantic information has to be true) is compatible with dialetheism (there are true contradictions), and that unless we accept the additional non-falsity thesis (information cannot be false) there is no reason to presuppose that there is (...) no such thing like contradictory information. (shrink)

In current philosophy of information, different authors have been supporting the veridicality thesis (VT). According to this thesis, an epistemically-oriented concept of information must have truth as one of its necessary conditions. Two challenges can be raised against VT. First, some philosophers object that veridicalists erroneously ignore the informativeness of false messages. Secondly, it is not clear whether VT can adequately explain the information considered in hypothetical reasoning. In this sense, logical diagrams offer an interesting case of (...) analysis: by manipulating a logical diagram we can verify that a certain conclusion follows from a set of premises, but it cannot help us to determine the actual truth-value of a given set of propositions. Focusing on the latter challenge, in this paper I claim that logical diagrams set out potential counterexamples to VT and, consequently, pose a real challenge to this thesis. First, a veridicalist analysis of logical diagrams requires the assumption of metatheoretical properties which are not satisfied by some logical systems (and, consequently, are not satisfied by some systems of logical diagrams). So, VT does not fit well as a general framework for a theory of logical diagrammatic information. Secondly, based on semantic inferentialism, one can propose a normative interpretation of the inferential content of logical diagrams not exposed to the problems faced by VT. Moreover, there are several reasons to believe that veridicalism cannot accommodate such a normative interpretation. In other words, normativism represents a real (though still underexplored) alternative to veridicality. Due to these reasons, I conclude that, until further research, we should adopt a more parsimonious standpoint and say that logical diagrams provide inferential information simply. (shrink)

: This article provides replies to, and comments on, the contributions to the special issue on the philosophy of information. It seeks to highlight con‐vergences and points of potential agreement, while offering clarifications and further details. It also answers some criticisms and replies to some objections articulated in the special issue.

This doctoral thesis consists of five research papers that address four tangential topics, all of which are relevant for the challenges we are facing in our socio-technical society: information, security, privacy, and anonymity. All topics are approached by similar methods, i.e. with a concern about conceptual and definitional issues. In Paper I—concerning the concept of information and a semantic conception thereof—it is argued that the veridicality thesis is false. In Paper II—concerning information security—it is argued that the (...) current leading definitions suffer from counter-examples, and lack an appropriate conceptual sense. Based on this criticism a new kind of definition is proposed and defended. In Paper III—concerning control definitions of privacy—it is argued that any sensible control-definition of privacy must properly recognize the context as part of the defining criteria. In Paper IV—concerning the concept of privacy—it is argued that privacy is a normative concept and that it is constituted by our social relations. Final, in Paper V—concerning anonymity—it is argued that the threat from deanonymization technology goes beyond harm to anonymity. It is argued that a person who never is deanonymized can still be harmed and what is at stake is an ability to be anonymous. (shrink)

This licentiate thesis consist of two separate research papers which concern two tangential topics – that of semantic information and that of information security. Both topics are approached by similar methods, i.e. with a concern about conceptual and definitional issues. In Paper I – concerning the concept of information, and a semantic conception thereof – the conceptual, and definitional, issues focus on one property, that of truthfulness. It is argued – against the veridicality thesis – that semantic (...) information need not be truthful. In Paper II – concerning information security – it is argued that the current leading definitions (so-called ‘CIA’ definitions, which define information as secure if, and only if, the properties of confidentiality, integrity, and availability are retained) suffer from both actual and possible counter-examples, and lack an appropriate conceptual sense. On the basis of this criticism a new kind of definitions is proposed and argued for. (shrink)

I argue that McDowell-style disjunctivism, as the position is often cashed out, goes wrong because it takes the good epistemic standing of veridical perception to be grounded in “manifest” facts which do not necessarily satisfy any epistemic constraints. A better form of disjunctivism explains the difference between good and bad cases in terms of epistemic constraints that the states satisfy. This view allows us to preserve McDowell’s thesis that good cases make facts manifest, as long as manifest facts must (...) satisfy epistemic constraints. (shrink)

This thesis concerns the question of what it is for a subject to act. It answers this question in three steps. The first step is taken by arguing that any satisfactory answer must build on the idea that an action is something predicable of the acting subject. The second step is taken by arguing in support of an answer which does build on this idea, and does so by introducing the idea that acting is doing something which is an (...) exercise of a particular kind of disposition on the part of the acting subject. The third step is taken by arguing that the disposition in question must be of a kind which is exercised in conditions in which the acting subject thinks they are acting. From this vantage point the thesis develops many further commitments: That action is constitutively subject to a mode of explanation that mentions the kind of disposition just mentioned; that any case of acting requires a veridical representation of a means by which the action is performed; and that a problem about the underspecified nature of desire ascriptions can be solved by appeal to the conceptual materials made available by these investigations. The thesis finally develops several objections to the account it gives, both substantive and methodological, and explains why these objections ought to be rejected. (shrink)

In this paper I present an outline of a model of knowledge that complements, and is complemented by, my the conception of logic delineated in The Bounds of Logic. The Bounds of Logic had as its goal a critical, systematic and constructive understanding of logic. As such it aimed at maximum neutrality vis-a-vis epistemic, metaphysical and meta-mathematical controversies. But a conception of logic does not exist in a vacuum. Eventually our goal is to produce an account of logic that answers (...) the needs of, contributes to the development of, and is supported by, a broader epistemology. In this paper I make first steps in this direction. I begin with an outline of a model of knowledge whose basic principles are based on the early Quine. I identify, and offer independent justification for, the special requirements this model sets on an adequate conception of logic. Finally, I show how, by satisfying these requirements, the conception of logic delineated in The Bounds of Logic can naturally be incorporated in this epistemic model. Logic, in this model, is both central and peripheral, is guided by both veridical and pragmatic norms, is both grounded in the world and assigned a central role in unifying our body of knowledge. (shrink)

There are powerful reasons to think of perceptual content as determined at least in part by the environment of the perceiving subject. Externalist views such as this are often rejected on grounds that they do not give a good account of hallucinations. The chapter shows that this reason for rejecting content externalism is not well founded if we embrace a moderate externalism about content, that is, an externalist view on which content is only in part dependent on the experiencing subject“s (...) environment. The chapter starts by motivating content externalism. It then argues that hallucinations are best understood in terms of a deficiency of veridical perceptual experiences. The chapter discusses the consequences of this thesis by developing a view of hallucinations that is committed to externalism about content. (shrink)

This paper presents a new argument to defend the normativity of meaning, specifically the thesis that there are no meanings without norms. The argument starts from the observation inferentialists have emphasized that incompatibility relations between sentences are a necessary part of meaning as it is understood. We motivate this approach by showing that the standard normativist strategy in the literature, which is developed in terms of veridical reference that may swing free from the speaker’s understanding, violates the ought-implies-can principle, (...) but ours does not. In addition, our approach is superior because, unlike the representationalist approach, it can be extended from declarative sentences to non-representational uses of language. In this paper, however, we only formulate the argument for the base case that involves incompatibility relations between declarative sentences. The goal is not to derive norms from something that is not normative, but to explicate the distinctive type of normativity that is built into meaning as it is understood by language-users. The explication proceeds in two steps. (1) For any sentence s a speaker understands, there is an incompatible sentence s’ the speaker understands to be incompatible with s. (2) In virtue of understanding this incompatibility of meanings, she ought not to be committed to both s and s’. This prohibition is not derived from instrumental practical reason, nor is it based on representational correctness, but its source is the incompatibility of meanings. (shrink)

This paper develops a view of the content of perceptual states that reflects the cognitive significance those states have for the subject. Perhaps the most important datum for such a theory is the intuition that experiences are ‘transparent’, an intuition promoted by philosophers as diverse as Sartre and Dretske. This paper distinguishes several different transparency theses, and considers which ones are truly supported by the phenomenological data. It is argued that the only thesis supported by the data is much (...) weaker than those typically considered in the literature, and has no obvious implications for the existence of sensory intermediaries. It does, however, have implications for the content of perceptual experience. It is argued that combining the first personal project with the transparency intuition yields an error theory of perception. The counterintuitive implications of this error theory are mitigated, however, by an account of perceptual beliefs which allows for them to be true even if the perceptual states are non-veridical. (shrink)

This paper defends two main theses related to emerging deepfake technology. First, fears that deepfakes will bring about epistemic catastrophe are overblown. Such concerns underappreciate that the evidential power of video derives not solely from its content, but also from its source. An audience may find even the most realistic video evidence unconvincing when it is delivered by a dubious source. At the same time, an audience may find even weak video evidence compelling so long as it is delivered by (...) a trusted source. The growing prominence of deepfake content is unlikely to change this fundamental dynamic. Thus, through appropriate patterns of trust, whatever epistemic threat deepfakes pose can be substantially mitigated. The second main thesis is that focusing on deepfakes that are intended to deceive, as epistemological discussions of the technology tend to do, threatens to overlook a further effect of this technology. Even where deepfake content is not regarded by its audience as veridical, it may cause its viewers to develop psychological associations based on that content. These associations, even without rising to the level of belief, may be harmful to the individuals depicted and more generally. Moreover, these associations may develop in cases in which the video content is realistic, but the audience is dubious of the content in virtue of skepticism toward its source. Thus, even if—as I suggest—epistemological concerns about deepfakes are overblown, deepfakes may nonetheless be psychologically impactful and may do great harm. (shrink)

This article investigates Hume's account of mental transparency. In this article, I will endorse Qualitative Transparency – that is, the thesis that we cannot fail to apprehend the qualitative characters of our current perceptions, and these apprehensions cannot fail to be veridical – on the basis that, unlike its competitors, it is both weak enough to accommodate the introspective mistakes that Hume recognises, and yet strong enough to make sense of his positive employments of mental transparency. Moreover, Qualitative Transparency (...) is also philosophically satisfying in providing good philosophical reason for why the mental states that are incorrigible should in fact be so. (shrink)

Drawing on the puzzling behavior of ordinary knowledge ascriptions that embed an epistemic (im)possibility claim, we tentatively conclude that it is untenable to jointly endorse (i) an unfettered classical logic for epistemic language, (ii) the general veridicality of knowledge ascription, and (iii) an intuitive ‘negative transparency’ thesis that reduces knowledge of a simple negated ‘might’ claim to an epistemic claim without modal content. We motivate a strategic trade-off: preserve veridicality and (generalized) negative transparency, while abandoning the general (...) validity of contraposition. We criticize various approaches to incorporating veridicality into domain semantics, a paradigmatic ‘information-sensitive’ framework for capturing negative transparency and, more generally, the non-classical behavior of sentences with epistemic modals. We then present a novel information-sensitive semantics that successfully executes our favored strategy: stable acceptance semantics, extending a vanilla bilateral state-based semantics for epistemic modals with a knowledge operator loosely inspired by the defeasibility theory of knowledge. (shrink)

Skilful expertise is grounded in practical, performative knowledge-how, not in detached, spectatorial knowledge-that, and knowledge-how is embodied by habitual dispositions, not representation of facts and rules. Consequently, as action control is a key requirement for the intelligent selection, initiation, and regulation of skilful performance, habitual action control, i.e. the kind of action control based on habitual dispositions, is the true hallmark of skill and the only veridical criterion to evaluate expertise. Not only does this imply that knowledge-that does not make (...) your actions more skilful, but it also implies that it makes them less skilful. This thesis, that I call Radical Habitualism, finds a precursor in Hubert Dreyfus. His approach is considered extreme by most philosophers of skill & expertise: an agent –says Dreyfus– does not perform like an expert when they lack the embodied dispositions necessary to control their action habitually or when they stop relying on such dispositions to control their actions. Thus, one cannot perform skilfully if their actions are guided by representations (isomorphic schemas, explicit rules, and contentful instructions), as the know-that that they convey disrupts or diminishes the agent’s habitual engagement with the task at hand. In defence of Radical Habitualism, I will argue that only the contentless know-how embedded in habitual dispositions fulfils (i) the genetic, (ii) the normative, and (iii) the epistemic requirements of skilful performance. I will examine the phenomenological premises supporting Dreyfus’ approach, clarify their significance for a satisfactory normative and explanatory account of skilful expertise, and rebut the most common objections raised by both intellectualists and conciliatory habitualists, concerning hybrid actions guided by a mix of habitual and representational forms of control. In revisiting Dreyfus anti-representationalist approach, I will particularly focus on its epistemological implications, de-emphasizing other considerations related to conscious awareness. (shrink)

In this paper, I discuss the distribution and interpretation of free choice items (FCIs) in Greek, a language exhibiting a lexical paradigm of such items distinct from that of negative polarity items. Greek differs in this respect from English, which uniformly employs any. FCIs are grammatical only in certain contexts that can be characterized as nonveridical (Giannakidou 1998, 1999), and although they yield universal-like interpretations in certain structures, they are not, I argue, universal quantifiers. Evidence will be provided that FCIsare (...) indefinites; the quasi-universal effect is shown to be the result of binding by an operator with universal force. Additionally, the limited distribution of FCIs in non veridical contexts can be accounted for by analyzing them as indefinites which must always be interpreted in an intensional type. The difference between ``regular'' indefinites and FCIs, therefore, is reduced to a type difference which captures the fact that only the latter exhibit limited distribution: because of their intensional type, FCIs will be grammatical only in contexts providing alternatives (worlds or situations), and nonveridical contexts do exactly this. By contrast, FCIs are excluded from veridical and episodic contexts because these provide no alternatives and hence do not satisfy the lexical semantic requirement ofFCIs. The proposed analysis is supported by data from other languages as well (Spanish, Catalan,French) and has important consequences regarding the analysis of English any. If FCIs are not universal quantifiers but indefinites, then the usual ambiguity thesis (free choice any being universal, negative polarity any an existential) can no longer be maintained, at least not as one in terms of quantificational force. (shrink)

According to many critics, Descartes argued in a circle when he presumed to base the certainty (and thus knowledge) of propositions that fulfill his epistemic criterion of being “clearly and distinctly perceived” on the demonstration that God exists and is not a deceiver. But his critics say, that demonstration, as he presented it, presupposed the validity of the same epistemic criterion. I critically examine two major strategies to dispel the appearance of circularity, two ways of interpreting Descartes’ argument.My approach shares (...) with the second strategy the contention that Descartes did adopt the principle that “whatever is clearly and distinctly perceived to be true is true,” prior to his consideration of the God question. Moreover, his demonstration of God’s existence and veracity made use of the principle. But my claim is that the knowledge of God’s existence and veracity is not used to validate the principle of clear and distinct perception (that would be unnecessary). It is used rather to defeat the sceptic’s argument that we cannot have any knowledge of the external, physical world. I proceed to present and explain Descartes’ argument centered around the thesis, “I cannot be certain that (r) any of my representational ideas of the external world are veridical, unless I am certain that (q), God exists and is not a deceiver.” That is, I prove why, for Descartes, (q) is necessary for (r). My discussion exposes some new facets to the principle of clear and distinct perception and reveals the fact that some familiar Cartesian distinctions that were not thought to be relevant to the problem of the Cartesian Circle are crucial to the solution of that problem. (shrink)

The overarching aim of this paper is to persuade the reader that radical scepticism is driven less by independently plausible arguments and more by a fear of epistemic limitation which can be overcome. By developing the Kierkegaardian insight that knowledge requires courage, I show that we are not, as potential knowers, just passive recipients of a passing show of putatively veridical information, we also actively need to put ourselves in the way of it by learning to resist certain forms of (...) epistemic temptation: the Cartesian thought that we could be ‘imprisoned’ within our own representations, and, hence permanently ‘out of touch’ with an ‘external’ world, and the Reasons Identity Thesis, which has us believe that whether we are in the good case or in the bad case, our epistemic grounds are the same. (shrink)

Malebranche holds that visual experience represents the size of objects relative to the perceiver's body and does not represent objects as having intrinsic or nonrelational spatial magnitudes. I argue that Malebranche's case for this body-relative thesis is more sophisticated than other commentators—most notably, Atherton and Simmons —have presented it. Malebranche's central argument relies on the possibility of perceptual variation with respect to size. He uses two thought experiments to show that perceivers of different sizes—namely, miniature people, giants, and typical (...) human beings—can experience the very same objects as having radically different sizes. Malebranche argues that there is no principled reason to privilege one of these ways of experiencing size over the others and, more specifically, that all three kinds of perceivers experience size veridically. From the possibility of this kind of veridical perceptual variation, Malebranche infers that visual experience represents only body-relative size. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reply to Stephen PhillipsArindam ChakrabartiMuch as I am honored by Stephen Phillips' detailed defense, in the face of my methodological "refutation," of the Nyāya thesis that a raw perception of the qualifier is a necessary causal factor for some (not all) determinate perception of an entity as qualified, I am not fully convinced that my deeper qualms about the very idea of immaculate perception unimpregnated by predicative structure (...) have all been adequately addressed. Instead of a detailed response, which I intend to undertake elsewhere, I wish to underscore the central worry behind my fifth (which Phillips calls "good") and seventh (which Phillips calls "weak") objections.When I claimed that perception is introduced, taxonomically, as a variety of veridical awareness, I had in mind the opening line of Gaṅgeśa's section on the definition of perception:sā ca pramā caturvidhā, pratyakṣānumityupamitiśābdā-bhedātAnd such veridical awareness is of four kinds: perception, inferential knowledge, knowledge from similarity, and knowledge from words.1This seems to be flatly incompatible with the admission of a subclass of perceptions that are not veridical awarenesses!Why does Phillips say that I am simply mistaken? True, taxonomic difficulties cannot overturn empirical evidence. But recall that there is no direct apperceptive evidence for "raw perception." The sole evidence is a generalization from a whole series of mediate (parokṣa) awarenesses that can happily afford to be instrumentally and crucially caused by other awarenesses. On the other hand, immediacy, which is the hallmark of a perception, consists of not having another awareness in its causal nexus. My seeing of a wall as white is direct, rather than inferential, analogical, or testimonial, to the extent that I did not have to go through any other awareness first in order to arrive at this visual perception. An inductive generalization from other mediate (cognition-generated) cognitions should not have such inexorable probative power over our account of immediate sensory cognition as to force us into admitting a neither-true-nor-false third kind of raw awareness!Phillips seems to have overlooked the metaphor of "spelling" that I used in this context while giving my second objection. If the step-by-step picture of building up the content of perception that Gaṅgeśa assumes is correct, then each element of the perceptual content of the predicative perception that this is a flower—the universal flowerhood, the actual physical object identified as "this," and qualification as a cementing relation, in this case inherence—would first have to be cognized in the unconnected "raw" manner! Now, even if we somehow swallow the idea of seeing a universal barely and not in relation to any one of its instances, it simply makes no [End Page 114] sense to talk about a bare, raw, unstructured perceptual acquaintance with qualification or inherence! Logically and structurally one could argue that unless you have "got" a, b, and R first, you cannot have the complex aRb. But this is admittedly a process of logical postmortem dissection of a whole piece of direct qualificative perception. And the point of my metaphorical warning—"You need to have 'L' and 'O' and 'D' and 'N' to spell 'London,' but you do not need to spell 'L' or 'O' or 'D' or 'N' first. Single letters simply cannot be spelled!"—was this: there are all sorts of different ways of "getting." You need to "get" the qualifying feature somehow in order to see or hear or taste something as qualified by that feature, but you do not therefore need to see or hear or taste that feature alone first in a bare, raw, unqualified manner! I do believe, like a good Naiyāyika, that high-pitchedness (or fifthness, in the octave) can be heard although it is a sound-universal. But I refuse to admit that before I can hear a sung note as high-pitched or (the fifth) I must somehow hear that universal directly without hearing it in any note!The central point, once again, is this: all awareness is intentional, according to Nyāya. There are only three kinds of intentional roles that our awarenesses assign to their objects: the role of... (shrink)

This paper argues for the conjunctive thesis of naïve realism and phenomenal intentionalism about perceptual experiences. Naïve realism holds that the phenomenology of veridical perceptual experience is constituted by environmental objects that the subject perceives. Phenomenal intentionalism about perceptual experience states that perceptual experience has intentionality in virtue of its phenomenology. I first argue that naïve realism is not incompatible with phenomenal intentionalism. I then argue that phenomenal intentionalists can handle two objections to it by adopting naïve realism: the (...) first objection is that phenomenal intentionalism cannot explain how a veridical perceptual experience is directed at a particular object rather than any other object of the same kind. The second objection is that phenomenal intentionalism cannot explain how a perceptual experience is directed at a type of external object rather than other types of objects without appealing to a resemblance relation between a perceptual experience and an external object, which is considered to be problematic. (shrink)

Putnam and Davidson both defended coherence theories of justification from the early 1980s onward. There are interesting similarities between these theories, and Putnam’s philosophical development lead to further convergence in the 1990s. The most conspicuous difference between Putnam’s and Davidson’s theories is that they appear to fundamentally disagree on the role and nature of conceptual schemes, but a closer look reveals that they are not as far apart on this issue as usually assumed. The veridicality of perceptual beliefs is (...) a cornerstone of both Davidson’s and Putnam’s later (but not earlier) coherentism. However, this thesis introduces a form of weak foundationalism into their theories, and consequently, those are strictly speaking not pure coherence theories, but hybrids between coherentism and foundationalism. (shrink)

In the work of interpreting Parmenides we have witnessed in the ’sixties and ’seventies, in English language scholarship, that rarest of phenomena in the study of ancient philosophy, the emergence of a consensus. Four interpretive theses now seem quite widely shared: Parmenides deliberately suppresses the subject of esti, “is,” or einai, “to be,” in his statement of the two “routes” in B2, his intention being to allow the subject to become gradually specified as the argument unfolds. The negative route, ouk (...) esti, “is not,” or mē einai, “not to be,” is banned because sentences that adhere to it fail to refer to actual entities—the latter to be understood broadly, as will shortly be stated in thesis. The argument does not depend on a confusion between the “is” of predication and the “is” of existence. In the relevant contexts, esti and einai involve a “fused” or “veridical” use of the verb “to be”; in other words, esti or einai have the force of “is actual” or “obtains,” or “is the case,” envisaging a variable subject x that ranges over states-of-affairs. (shrink)

In this paper, I investigate two potential ways to experimentally test the thesis that observation is theory-laden. One is a proposal due to Schurz (J Gen Philos Sci 46:139–153, 2015) and the other my own. The two are compared and found to have some features in common. One such feature is that both proposals seek to create conditions that compel test subjects with diverse theoretical backgrounds to resort to bare (or at least as bare as possible) observational judgments. Thus, (...) if judgments made under those conditions are convergent across test subjects, the said convergence would lend credibility to the view that theory-neutral observations are feasible. This still leaves the question of why any such convergence exists unanswered. Towards the end of the paper, it is argued that the best explanation for observational judgment convergence is the veridicality of those judgments. (shrink)

[Working Draft — Comments are welcome! — March 2024] Reductive strong representationalists accept the Common Kind Thesis about subjectively indistinguishable sensory hallucinations, illusions, and veridical experiences. I show that this doesn’t jibe well with their declared phenomenal externalism and argue that there is no sense in which the phenomenal character of sensory experiences is constituted by the sensible properties represented by these experiences, as representationalists claim. First, I argue that, given general representationalist principles, no instances of a sensible property (...) constitute the phenomenal character of the sensory experience that represents them. Second, I argue that, with two very plausible assumptions in place, no sensible property qua universal can constitute the phenomenal character of experiences either. At the end, I offer an alternative picture that is consistent with a naturalist psychosemantics for sensory experiences without embracing phenomenal externalism. (shrink)

Disjunctivism, as a theory of visual experience, claims that the mental states involved in a “good case” experience of veridical perception and a “bad case” experience of hallucination differ, even in those cases in which the two experiences are indistinguishable for their subject. Consider the veridical perception of a bar stool and an indistinguishable hallucination; both of these experiences might be classed together as experiences (as) of a bar stool or experiences of seeming to see a bar stool. This might (...) lead us to think that the experiences we undergo in the two cases must be of the same kind, the difference being that the former, but not the latter, is connected to the world in the right kind of way. Such a conjecture has been called a “highest common factor” or “common kind” assumption. At heart, disjunctivism consists in the rejection of this assumption. According the disjunctivist, veridical experiences and hallucinations do not share a common component. There are a host of interesting questions surrounding disjunctivism including: What is involved in the claims that good case and bad case experiences differ? Why might one might want to be a disjunctivist? What kinds of claims can the disjunctivist make about hallucination and illusion? These questions, and problems for the thesis, will be discussed as we proceed. (shrink)

Crispin Wright argues that John McDowell’s use of disjunctivism to respond to the sceptic misses the point of the sceptic’s argument, for disjunctivism is a thesis about the differing metaphysical natures of veridical and nonveridical experiences, whereas the sceptic’s point is that our beliefs are unjustified because veridical and nonveridical experiences can be phenomenally indistinguishable. In this paper, I argue that McDowell is responsive to the sceptic’s focus on phenomenology, for the point of McDowell’s response is that it is (...) the phenomenal character of experience that makes the belief in disjunctivism rational, and thereby also makes rational the anti-sceptical belief that, other things being equal, the world is the way it appears. (shrink)

Jimmy Plourde | : Dans cet article, je défends la thèse qu’il ne peut pas y avoir de savoir intuitif sous la forme d’un état purement mental, car, contrairement aux états purement mentaux de connaissance, les intuitions rationnelles n’excluent pas la possibilité de la coexistence de connaissances aux contenus contradictoires. Je soutiens que cela trouve une double justification dans la non-factivité et la non-véridictivité des intuitions, et une explication dans l’idée que les intuitions sont des expériences d’« intellectual seemings ». (...) Enfin, je soutiens que ces caractéristiques des intuitions pourraient constituer une difficulté pour la thèse évidentialiste et, par conséquent, pour la conception du savoir intutitif dans le cadre d’une théorie classique réformée de la connaissance. | : In this paper I argue that there cannot be intuitive knowledge if knowledge is conceived as a purely mental state. States of knowledge may not consist of rational intuitions because these do not, contrarily to purely mental states of knowledge, rule out the possibility of coexisting states of knowledge with contradictory contents. I defend the view that the justification for this incapacity lies in the non-factivity and the non-veridicity of intuitions. It is also argued that this non-factivity and non-veridicity of intuitions has its roots in the fact that intuitions are experiences of “intellectual seemings”. In the end, I consider the possibility that the non-factivity and non-veridicity of intuitions might constitute a problem for the thesis of evidentialism, thereby raising an issue for any conception of intuitive knowledge elaborated within the framework of a modified traditional conception of knowledge. (shrink)

Disjunctivism is the view that perceptual experience is either constituted by fact in the world or mere appearance. This view is said to be able to guarantee our cognitive contact with the world, and thus remove a crucial “prop” upon which skepticism depends. This paper has two aims. First, it aims to show that disjunctivism is a solution to Cartesian skepticism. Cartesian skepticism is an epistemological thesis, not an ontological one. Therefore, if there is an external world, we may (...) well undergo a veridical experience, and thus we can take advantage of disjunctivism to adopt an anti-evidential-skepticism strategy to counter Cartesian skepticism. Second, this paper argues that disjunctivism fails to solve Pyrrhonian skepticism. To counter Pyrrhonian skepticism, one has to give reasons both for his belief and for his believing. But disjunctivism can only account the former, that is, the reason for the content of perceptual belief. Given that one’s experience in good case and bad case is subjectively indistinguishable, one cannot just use his experience to justify his believing. This shows that disjunctivism cannot meet the requirement to provide an adequate account for reflective knowledge. (shrink)

The aims of my paper are triple: 1) to offer a panoramic view on the evolution of theoretical reflections on documentary definition, specially into the contemporary analytic aesthetics; 2) to evaluate the solution proposed by Carl Plantinga defining documentary as AVR (Assserted Veridical Representation); and 3) to contrast the aforementioned theoretical problem with an example of new documentary film, My Architect (2003) by N. Kahn, wich I find particulary interesting and significant concerning that problem. My thesis is that new (...) documentary emphasis in subjective involvement of both filmmaker and spectator results in a more deep understanding of documentary nature. (shrink)

In this paper, the traditional view that argumentum ad ignorantiam is a logical fallacy is challenged, and lessons are drawn on how to model inferences drawn from knowledge in combination with ones drawn from lack of knowledge. Five defeasible rules for evaluating knowledge-based arguments that apply to inferences drawn under conditions of lack of knowledge are formulated. They are the veridicality rule, the consistency of knowledge rule, the closure of knowledge rule, the rule of refutation and the rule for (...) argument from ignorance. The basic thesis of the paper is that knowledge-based arguments, including the argument from ignorance, need to be evaluated by criteria for epistemic closure and other evidential rules that are pragmatic in nature, that need to be formulated and applied differently at different stages of an investigation or discussion. The paper helps us to understand practical criteria that should be used to evaluate all arguments based on knowledge and/or ignorance. (shrink)

According to many critics, Descartes argued in a circle when he presumed to base the certainty (and thus knowledge) of propositions that fulfill his epistemic criterion of being “clearly and distinctly perceived” on the demonstration that God exists and is not a deceiver. But his critics say, that demonstration, as he presented it, presupposed the validity of the same epistemic criterion. I critically examine two major strategies to dispel the appearance of circularity, two ways of interpreting Descartes’ argument.My approach shares (...) with the second strategy the contention that Descartes did adopt the principle that “whatever is clearly and distinctly perceived to be true is true,” prior to his consideration of the God question. Moreover, his demonstration of God’s existence and veracity made use of the principle. But my claim is that the knowledge of God’s existence and veracity is not used to validate the principle of clear and distinct perception (that would be unnecessary). It is used rather to defeat the sceptic’s argument that we cannot have any knowledge of the external, physical world. I proceed to present and explain Descartes’ argument centered around the thesis, “I cannot be certain that (r) any of my representational ideas of the external world are veridical, unless I am certain that (q), God exists and is not a deceiver.” That is, I prove why, for Descartes, (q) is necessary for (r). My discussion exposes some new facets to the principle of clear and distinct perception and reveals the fact that some familiar Cartesian distinctions that were not thought to be relevant to the problem of the Cartesian Circle are crucial to the solution of that problem. (shrink)

The general topic of "Mind and World", the written version of John McDowell's 1991 John Locke Lectures, is how `concepts mediate the relation between minds and the world'. And one of the main aims is `to suggest that Kant should still have a central place in our discussion of the way thought bears on reality' (1).1 In particular, McDowell urges us to adopt a thesis that he finds in Kant, or perhaps in Strawson's Kant: the content of experience is (...) conceptualized; _what_ we experience is always the kind of thing that we could also believe. When an agent has a veridical experience, she `takes in, for instance sees, _that things are thus and so_' (9). McDowell's argument for this thesis is indirect, but potentially powerful. He discusses a tension concerning the roles of experience and conceptual capacities in thought, and he claims that the only adequate resolution involves granting that experiences have conceptualized content. The tension, elaborated below, can be expressed roughly as follows: judgments must be somehow constrained by features of the external environment, else judgments would be utterly divorced from the world they purport to be about; yet our judgments must be somehow free of external control, else we could give no sense to the idea that we are responsible for our judgments. (shrink)

In this brief reply to Anne Margaret Baxley’s comments on my paper, “Exiting the State and Debunking the State of Nature,” I respond to her two critical worries about my thesis that there is an unbridgeable gap between Kant’s political theory, which is classically liberal, and his ethics/theory of enlightenment/moral theology, which is anarchist: that Kant’s strong moral epistemic skepticism in the Groundwork about knowing the true motives of our choices and actions, requires coercive State intervention in order to (...) ensure that we heed mutual relations of external freedom and do our juridical duties, and that the overall crookedness of the human timber, i.e., our almost inevitable empirical tendency to fall short of autocracy, requires the very same State interventions for the very same moral-political straightening purposes. I argue that Kant isn’t the moral epistemic skeptic he’s standardly taken to be—on the contrary, we have veridical, direct, occurrent, essentially non-conceptual, non-empirical awareness of autonomous choices and actions, via The Fact of Reason, and that coercing people to be morally good necessarily undermines the moral worth of their choices and actions and turns them into nothing but well-oiled, law-abiding robots of the State—so we must exit the State in order to belong to an ethical community instead, i.e., Kantian anarchism; hence my unbridgeable-gap thesis still stands. I end by self-advertising for existential Kantian cosmopolitan anarchism. (shrink)

Many philosophers have held that perceptual experience is fundamentally a matter of perceivers being in particular representational states. Such states are said to have representational content, i.e. accuracy or veridicality conditions, capturing the way that things, according to that experience, appear to be. In this thesis I argue that the case against representationalism — the view that perceptual experience is fundamentally and irreducibly representational — that is set out in Charles Travis’s ‘The Silence of the Senses’ (2004) constitutes (...) a powerful, but much misunderstood and neglected argument against this prevailing philosophical orthodoxy. -/- In chapter 2, I present an interpretation of Travis’s arguments that poses a dilemma for the representationalist concerning the indeterminacy and availability of perceptual content. Chapters 3 and 4 evaluate a variety of arguments in favour of such content based upon the nature of appearances, or ‘looks’, including those by Byrne (2009), Siegel (2010) and Schellenberg (2011b), each of which I find to be problematic. Finally, chapters 5 and 6 examine the relationship between representational content and phenomenal character, i.e. what perceptual experience is subjectively like, outlining some potential responses to Travis’s anti-representationalism. These include the external individuation of content and self-knowledge, and the operation of perceptual discriminatory capacities (the latter of which does not necessarily favour a representationalist account of experience). -/- I conclude that Travis’s arguments establish substantive constraints upon the nature and role of perceptual content. Moreover, I argue that the debate centres less upon the existence of such content than its explanatory role, particularly in relation to phenomenal character and the contents of other mental states: belief, intention, thought, knowledge, and so on. This in turn highlights the need for representationalists to better clarify the role of the contents their theories posit, and why such theories constitute a better explanation of the relevant phenomena than the corresponding non-representational view.. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:166, FLAGE ON HUME'S ACCOUNT OF MEMORY In the Treatise Hume writes that an impression which "has been present with the mind" may "make its appearance there as an idea," and that it can appear either through the faculty of memory or the faculty of the imagination. Memory and imagination each produces its own species of idea. In "Hume on Memory and 2 Causation" Daniel Flage addresses Hume's carving (...) out of these two species. Flage's main purpose is to show that Hume has a criterion for distinguishing memory ideas from others. I will argue that Flage has not located necessary and sufficient conditions for memory in Hume's discussion of memory. I will show that if Hume intended to provide a criterion at all, it is not the criterion Flage attributes to him, and that the criterion Flage has formulated is not an improvement over what appears to be Hume's criterion. Before looking at the details of Flage's interpretation I want to mention briefly an underlying assumption of the paper. The assumption is that Hume believes that there must be a clear distinction between memories and other perceptions. The assumption is supported by the fact that Hume speaks of the species of memory. However, there is textual evidence against this assumption. In the Treatise Hume emphasizes the ways in which memories are like other perceptions. For example, Hume calls memories impressions, while in distinguishing impressions from ideas he introduces 3 memories as paradigm examples of ideas. The reason Hume calls memories impressions, I believe, is that for the purpose of inference, he takes memories to be equivalent to impressions of sense. Since Hume is willing to put memories in two seemingly incompatible categories, perhaps his primary concern is with the role they play in belief; we make causal inferences 167. from memory and sense, not from the imagination. That Hume's primary concern is with inference, and not with memory per se, is supported by the fact that both Treatise sections devoted to memory are followed by 4 sections which deal with causal inference. Hume thinks that we cannot always distinguish memories from other perceptions "in their operation." It is not clear that he thinks that there must be a sharp distinction at all, since the traditional epistemological purpose for such a distinction, to partition the veridical from the non-veridical, is not obviously Hume's purpose. However, Flage claims that there is a clear criterion of memory in the Treatise. Let's take a look at what he has found. Flage maintains that Hume has both a phenomenal criterion based on vivacity which allows us in a rough and ready way to distinguish memories from imaginings "in their operation," and a formal criterion which "provides one with insight into the complex structure of an idea of memory." (p. 169) The phenomenal criterion does not distinguish memory ideas from others, since, as Hume himself allows, non-memories (e.g. beliefs, delusions, even ideas of the imagination) can have the same vivacity as memories. (Cf. T86) The marking off of memory as a distinct species is accomplished, on Flage's view, by the formal criterion. Hume writes "The chief exercise of the memory is not to preserve the simple ideas, but their order and position." (T9) This is what Flage calls Hume's formal criterion, and Flage takes it as both necessary and sufficient for being a memory idea. Flage takes memory ideas to be what he calls relative ideas, ideas which pick out or refer to a unique item. A memory idea, on this view, is a complex idea which uniquely picks out the antecedent complex 168, impression which resembles and is the cause of the idea. Flage writes: The formal criterion is basically a causal thesis: if a particular positive idea (mental image) is a genuine idea of the memory, then at some point in the past there was a complex impression that was the cause (or the original cause) of and exactly (or closely) resembles that positive idea as an idea. (p. 172) In this formulation the criterion is a necessary condition of memory. In a subsequent formulation Flage claims its sufficiency as... (shrink)

In his insightful paper Williamson is primarily concerned to cast doubt on the thesis that if one has evidence in support of one’s belief then one knows what that evidence is. By casting doubt on that claim Williamson wants to argue that the skeptic cannot establish that the evidence one has for believing certain commonplace true propositions is the same as the evidence one would have for believing corresponding false propositions in phenomenologically indistinguishable skeptical scenarios. Despite the fact that (...) one wouldn’t be able to know that one is hallucinating when one is, it doesn’t follow that one’s evidence for believing that one’s perception is veridical, when it is, is no different, and no better, than the evidence one possesses when one is the victim of hallucination. (shrink)