Varieties of Content Externalism

Philosophical skepticism about the external world seeks to call into question our knowledge of the external world. Some kinds of philosophical skepticism employ skeptical hypotheses to prove that we cannot know anything about the external world. Putnam tried to refute this kind of skepticism by adopting semantic externalism; but, as is now generally accepted, Putnam’s argument is epistemically circular. Brueckner proposes some new, “simple” arguments that in his view are not circular. In this paper we evaluate Brueckner’s simple arguments for (...) refuting skepticism about the external world, and seek to demonstrate that they fail to prove that we can have knowledge about the external world. However, by appeal to the principle of privileged access, one of the Brueckner’s arguments does indeed succeed in showing that we can have justified beliefs about the external world. (shrink)

It is a widely accepted thesis in the cognitive sciences and in naturalistic philosophy of mind that the contents of at least some mental representations are innate. A question that has popped up in discussions concerning innate mental representations is this. Are externalist theories of mental content applicable to the content of innate representations? Views on the matter vary and sometimes conflict. To date, there has been no comprehensive assessment of the relationship between content externalism and content innateness. The aim (...) of this paper is to provide such an assessment. I focus on the notions of innateness that are employed in innateness hypotheses within the cognitive sciences and adjacent fields of philosophy, and on causal externalist theories of content. I distinguish between three accounts of what being innate might amount to in innateness hypotheses within the cognitive sciences, and between three types of causal externalism. I explain what the possibility of innate externalistically individuated representations depends upon given all nine combinations. I explain why causal externalism can be true of innate mental representations, given but one of these combinations. (shrink)

[The Metaphysics of Anti-Individualism] A detailed exploration of the implications of psychological externalism -- in particular Tyler Burge's variety, or what he calls "anti-individualism" -- for the mind-body problem. Based on his anti-individualism, Burge famously rejected materialism, but the ramifications of this argument were not properly examined. I show how he rejects the identity, supervenience, and realization forms of materialism, but that he leaves out the possibility of constitution. In fact, this is not the only option that he admits -- (...) others include eliminativism; a non-metaphysical view which I dub "explanatory pluralism;" and a certain version of dualism. I explore these options and find each of them lacking. However, I eventually consider a possibility that, given anti-individualism, our intentional discourse is ultimately incoherent (I take a clue here from Kripke's "A Puzzle about Belief"). Hence, there might be no satisfactory metaphysic of the mind. (shrink)

This chapter poses a challenge to the extended mind thesis that Andy Clark and David Chalmers propose for beliefs, upon which their thesis is largely based. Clark and Chalmers present two related theses in their exposition of the extended mind. First they present “active externalism,” which states that a cognitive system is achieved when humans are appropriately linked with external entities; second, they present “the extended mind thesis,” which states that some, if not all, of a subject’s mental phenomena are (...) constituted partly by features of that subject’s environment. The second view is the focus of this chapter, as it is the reasoning behind the notion that beliefs can be constituted partly by features of the environment, and that the mind therefore extends into the world. Arguments in this chapter are confined to beliefs and do not include other mental phenomena. (shrink)

In his critique of the extended mind hypothesis, Robert Rupert suggests that we have no reason to move from the claim that cognition is deeply embedded in the environment to the more radical claim that, in some cases, cognition itself extends into the environment. In this paper, I argue that we have strong normative reasons to prefer the more radical extended mind hypothesis to Rupert’s modest embedded mind hypothesis. I take an agnostic position on the metaphysical debate about the ultimate (...) nature and location of the mind, and instead argue in favor of the extended mind framework on the basis of its ability to better capture normative concerns about the way we evaluate the cognitive capacities of learning disabled individuals. In light of the commitments of the embedded and extended mind frameworks, defenders of the embedded mind framework are committed to conclusions about learning-disabled individuals that we have good normative reason to reject, whereas the extended mind framework avoids such problematic conclusions. Thus, if we find these normative concerns persuasive, we have good reason to prefer the extended mind position. (shrink)

Ruth Millikan and others advocate theories which attempt to naturalize wide mental content in terms of functions, where the latter are in turn based in part on facts concerning past natural selection. While I support basing content on functions which are constituted by facts about the past, I argue that it is a mistake to base content on selection. This dissertation works out an alternative concept of function which is a more appropriate basis for a theory of mental content. In (...) particular, I define a concept of function in terms of comparisons between certain past probabilities, and comparisons between fitnesses of certain ancestors, without regard to facts about selection. This account clearly requires naturalistic concepts of probability and fitness. Furthermore, fitness must not depend on selection. The propensity interpretation of fitness and its elaborations, which define fitness in terms of probability, in particular propensity, provide a framework for a naturalistic concept of fitness which does not depend on selection. But I argue that propensity is not a suitable basis for fitness. A large portion of the dissertation is devoted to a sketch of a fully naturalistic concept of higher-level objective probability, a concept which can provide a foundation for probability-based theories of fitness and other higher-level uses of probability. This concept of probability is defined in terms of the structures of mechanisms and in terms of very general facts about certain sets of actual events. This sort of probability has causal connections to observed relative frequency without being equivalent to relative frequency, and is consistent with lower level probabilities with arbitrary values. Although the focus of the dissertation is on objective probability, on the foundations of teleological theories of content, and on the foundations of a theory of teleology suitable for supporting such theories, my discussion has implications for more general issues concerning scientific realism and the foundations of evolutionary biology. (shrink)

Summary: A review of the cognitivist/extended cognition and extended mind landscape.

This paper starts from the familiar premise that psychological anti-individualism is incompatible with materialism. It attempts to state more clearly what this incompatibility consists in, and — rather than arguing in detail for any particular resolution — to inquire whether this incompatibility admits any resolution. However, the paper does offer a conditional argument concerning the possibility that the incompatibility is genuine and cannot be resolved. Provided that anti-individualism and materialism cannot be squared, and anti-individualism is correct, it follows that materialism (...) has to be abandoned. If so, the situation is not as disastrous as it might at first seem. We need not, in consequence of our inability to construe a coherent metaphysics of mind, give up on intentional vocabulary any more than we must stop, in consequence of our inability to make sense of induction, anticipating the future. (shrink)

Clark and Chalmers (1998) defend the hypothesis of an ‘Extended Mind’, maintaining that beliefs and other paradigmatic mental states can be implemented outside the central nervous system or body. Aspects of the problem of ‘language acquisition’ are considered in the light of the extended mind hypothesis. Rather than ‘language’ as typically understood, the object of study is something called ‘utterance-activity’, a term of art intended to refer to the full range of kinetic and prosodic features of the on-line behaviour of (...) interacting humans. It is argued that utterance activity is plausibly regarded as jointly controlled by the embodied activity of interacting people, and that it contributes to the control of their behaviour. By means of specific examples it is suggested that this complex joint control facilitates easier learning of at least some features of language. This in turn suggests a striking form of the extended mind, in which infants’ cognitive powers are augmented by those of the people with whom they interact. (shrink)

In this paper I distinguish two types of mental causation, called 'higher-level causation' and 'exploitation'. These notions superficially resemble the traditional problematic notions of supervenient causation and downward causation, but they are different in crucial respects. My new distinction is supported by a radically externalist competitor of the so-called Standard View of mental states, i.e. the view that mental states are brain states. I argue that on the Alternative View, the notions of 'higher-level causation' and 'exploitation' can in combination dissolve (...) the problem of mental causation as standardly discussed. (shrink)

The most popular and influential strategies used against semantic externalism and the causal theory of reference are critically examined. It is argued that upon closer scrutiny, none of them emerges as truly convincing.

The new externalist picture of natural kind terms due to Kripke, Putnam, and others has become quite popular in philosophy. Many philosophers of science have remained sceptical. Häggqvist and Wikforss have recently criticised this view severely. They contend it depends essentially on a micro-essentialist view of natural kinds that is widely rejected among philosophers of science, and that a scientifically reasonable metaphysics entails the resurrection of some version of descriptivism. It is argued in this paper that the situation is not (...) quite as dark for the new theory of reference as many critics suggest. There are several distinct questions here which should not be conflated and ought to be dealt with one by one. Descriptivism remains arguably problematic. (shrink)

This comment concentrates on Y&H’s preferred framework for discussing the issue of broad vs. narrow content, arguing that it is not well-suited to the task; once a more traditional framework is adopted, Y&H’s case against internalism is strengthened. The comment ends by briefly mentioning an appealing internalist picture that their otherwise comprehensive critique does not address.

In the present paper, the notion that brains in vats with perceptual experiences of the same type as ours could perceptually represent other entities than shapes is challenged. Whereas it is often held that perceptual experiences with the same phenomenal character as ours could represent computational properties, I argue that this is not the case for shapes. My argument is in brief that the phenomenal character of a normal visual experience exemplifies shapes – phenomenal shapes – which functions as the (...) vehicle for our perceptual representation of shapes. Due to the unique mereological structure of shapes, phenomenal shapes are unable to reliably track any property but shapes. In so far as reliable tracking is a necessary condition for perceptual representation, phenomenal shapes can consequently and contrary to received wisdom only represent shapes. (shrink)

This book discusses the two main construals of the explanatory goals of semantic theories. The first, externalist conception, understands semantic theories in terms of a hermeneutic and interpretive explanatory project. The second, internalist conception, understands semantic theories in terms of the psychological mechanisms in virtue of which meanings are generated. It is argued that a fruitful scientific explanation is one that aims to uncover the underlying mechanisms in virtue of which the observable phenomena are made possible, and that a scientific (...) semantics should be doing just that. If this is the case, then a scientific semantics is unlikely to be externalist, for reasons having to do with the subject matter and form of externalist theories. It is argued that semantics construed hermeneutically is nevertheless a valuable explanatory project. (shrink)

This encyclopedia consists of short pieces on specific topics. My contribution concerns the nature of thought and its implications for the status of social sciences.

David Chalmers has recently argued that Relativity Theory supports the notion that shapes are Twin-Earthable. In this paper this argument is challenged. I reconstruct the argument in five steps where the last step is the conclusion. I proceed to argue that one step in the argument can be interpreted in two different ways. The problem is that on the first interpretation of the step, the conclusion does not follow. And on the second interpretation of the step, it contradicts a previous (...) step in the argument. I conclude that Relativity Theory does not entail that phenomenal and functional twins could represent different shapes. (shrink)

This paper presents a framework for analysing perceptual Twin Earth thought experiments. Visual content normally has an analogue character, and it is argued in this paper that this sets certain constraints on the extent to which Twin Earth thought experiments can be successful. The argumentation in the paper is developed by using examples from visual spatial content. It is argued that visual spatial content can only be “twin-earthed” in a very limited way. Whereas the metrics of space can be twin-earthed, (...) visual experience has a structure that means that it can only be the vehicle for representing entities with geometrical structures. (shrink)

The object of this paper is to sketch an approach to propositions, meaning and names. The key ingredients are a Twin-Earth-inspired distinction between internal and external meaning, and a middle-Wittgenstein-inspired conception of internal meaning as role in language system. I show how the approach offers a promising solution to the problem of the meaning of proper names. This is a plea for a neglected way of thinking about these topics.

In the history of formal semantics, the successful joining of linguistic and philosophical work brought with it some difficult foundational questions concerning the nature of meaning and the nature of knowledge of language in the domain of semantics: questions in part about “what’s in the head” of a competent language-user. This paper, part of a project on the history of formal semantics, revisits the central issues of (Partee, 1979) in a historical context, as a clash between two traditions, Fregean and (...) Chomskyan, a clash that accompanied early work combining Montague’s semantics with Chomskyan syntax. Recent advances in philosophy of mind (from, e.g., Stalnaker and Burge) go a long way towards changing the framework of arguments about “psychological reality” and “competence”, challenging the suppositions on which the original dichotomy rested, thus largely defusing the tension. (shrink)

The classic thought experiments for Content Externalism have been motivated by consideration of intentional states with a mind-to-world direction of fit. In this paper, I argue that when these experiments are run on intentional states with a world-to-mind direction of fit, the thought experiments actually support Content Internalism. Because of this, I argue that the classic thought experiments alone cannot properly motivate Content Externalism. I do not show that Content Externalism is false in this paper, just that it cannot be (...) motivated by the classic thought experiments alone. I discuss various externalist responses to the argument I raise and show that they all fail. (shrink)

Externalism is the thesis that the contents of intentional states and speech acts are not determined by the way the subjects of those states or acts are internally. It is a widely accepted but not entirely uncontroversial thesis. Among such theses in philosophy, externalism is notable for owing the assent it commands almost entirely to thought experiments, especially to variants of Hilary Putnam's famous Twin Earth scenario. This paper presents a thought experiment-free argument for externalism. It shows that externalism is (...) a deductive consequence of a pair of widely accepted principles whose relevance to the issue has hitherto gone unnoticed. (shrink)

Externalism holds that the content of our utterances and thoughts are determined partly by the environment. Here, I offer an argument which suggests that externalism is incompatible with a natural view about ontological commitment--namely, the Quinean view that such commitments are fixed by the range of the variables in your theory. The idea in brief is that if Oscar mistakenly believes that water = XYZ, the externalist ontologically commits Oscar to two waterish kinds, whereas the Quinean commits him to one (...) such kind (albeit a metaphysically impossible kind). The penultimate section addresses a variety of objections to the argument. (shrink)

Making sense of twin earth intuitions with an information-theoretic account of content: information depends on relations in normal conditions, which are extrinsic. With remarks on the context-sensitivity of content-attribution.

There has been recent dispute between Putnam and Searle over whether meanings are “in the head”. Putnam makes use of Twin-Earth thought experiments to show that our mental states alone cannot determine what we refer to (and thus “mean”) and that we rely also on external factors, which are not “in the head”. This suggests to me that we in some way mean more than we actually know. Searle on the other hand makes use of what he calls “Intentional contents”, (...) “conditions of satisfaction”, and “self-referentiality”, to show that meanings can be said to be in the head. It seems to me that an internalist account as we find it in Husserl or Searle is closer to what is going on when we mean something. (shrink)

In "The Meaning of 'Meaning'" Putnam argues, among other things, that "'meanings' just ain't in the head". Putnam's central arguments in favor of this conclusion are unsound. The arguments in question are the famous intra-world Twin Earth arguments, given on pages 223-227 of the article in question. Each of these arguments relies on a premise to the effect that this or that Twin Earth scenario is both logically possible and one in which certain individuals are in the same overall "psychological (...) [state] in the narrow sense". The problem is that none of the scenarios are as advertised; that is, none of them are logically possible situations in which the relevant individuals are in the same overall "psychological [state] in the narrow sense". (shrink)

Semantic externalism is the view that the meanings of referring terms, and the contents of beliefs that are expressed by those terms, are not fully determined by factors internal to the speaker but are instead bound up with the environment. The debate about semantic externalism is one of the most important but difficult topics in philosophy of mind and language, and has consequences for our understanding of the role of social institutions and the physical environment in constituting language and the (...) mind. In this long-needed book, Jesper Kallestrup provides an invaluable map of the problem. Beginning with a thorough introduction to the theories of descriptivism and referentialism and the work of Frege and Kripke, Kallestrup moves on to analyse Putnam’s Twin Earth argument, Burge’s arthritis argument and Davidson’s Swampman argument. He also discusses how semantic externalism is at the heart of important topics such as indexical thoughts, epistemological skepticism, self-knowledge, and mental causation. Including chapter summaries, a glossary of terms, and an annotated guide to further reading, _Semantic Externalism_ an ideal guide for students studying philosophy of language and philosophy of mind. (shrink)

Many philosophers have used premises about concepts and rationality to argue that the protagonists in the various Twin Earth thought experiments do not have the concepts that content externalists say they have. This essay argues that this popular internalist argument is flawed in many different ways, and more importantly it cannot be repaired in order to cast doubt on externalism.

Several authors have argued that, assuming we have apriori knowledge of our own thought-contents, semantic externalism implies that we can know apriori contingent facts about the empirical world. After presenting the argument, I shall respond by resisting the premise that an externalist can know apriori: If s/he has the concept water, then water exists. In particular, Boghossian's Dry Earth example suggests that such thought-experiments do not provide such apriori knowledge. Boghossian himself rejects the Dry Earth experiment, however, since it would (...) imply that externalism is true of empty concepts as well as non-empty concepts. Yet in this paper I respond by defending empty-concept externalism, from criticisms suggested by Boghossian and Brown, and recently developed further by Besson. My contention is that an externalist can give a non-ad hoc descriptivist account of empty concepts. Accordingly, apriori self-knowledge does not enable an externalist to know contingent features of the external world. (shrink)

Many theorists have contended that since the mind depends on the brain, the contents of our thoughts are determined by just the intrinsic physical properties of our bodies. In the first part of my dissertation I examine this theory's negation, anti-individualism, by investigating the "Twin-Earth" thought experiments of Putnam and Burge. Although anti-individualism has recently become widely accepted, I argue that none of the arguments given thus far are sound; nor has the theory been given a proper formulation. I also (...) argue that no one has articulated an interesting and true version of externalism, the related idea that if one is thinking, for example, that water is wet, then one's environment has certain empirical features . However, I then proceed to present a true version of externalism and a sound argument for a version of anti-individualism. ;In the past few years many theorists have argued that the Twin-Earth arguments, if they prove anything, have stunning implications: they refute physicalism, scepticism, authoritative self-knowledge, and the causal construal of psychological explanation; and they show that the contents of our thoughts that are appealed to in ordinary psychological explanation are not the contents captured by the sentences we use in those explanations. I attempt to refute all these arguments. ;In the second part of the dissertation I argue against the thesis that thought and action tokens exist and are, at bottom, physical entities. Roughly put, one of the main premises of the main argument is that if an action token has a physical makeup then there cannot be radically incompatible but equally plausible proposals regarding what that makeup is; but since there are such proposals, the tokens have no physical makeup. I then formulate a naturalist but nonphysicalist view of mental tokens. (shrink)

Two arguments against the compatibility of epistemic internalism and content externalism are considered. Both arguments are shown to fail, because they equivocate on the concept of justification involved in their premises. To spell out the involved equivocation, a distinction between subjective and objective justification is introduced, which can also be independently motivated on the basis of a wide range of thought experiments to be found in the mainstream literature on epistemology. The subjective/objective justification distinction is also ideally suited for providing (...) new insights with respect to central issues within epistemology, including the internalism/externalism debate and the New Evil Demon intuition. (shrink)

This draft now appears (in revised form) as Chapter 6 of _Self-Reflection for the Opaque Mind_. See http://philpapers.org/rec/PARSFT-3.

The canonical arguments against the description theory of names are usually taken to have established that the reference of a name as used on a given occasion is not semantically determined by the qualitative descriptions that the speaker may have in mind. The deepest moral of these arguments, on the received view, would be that the speaker’s narrow mental states play no semantic role in fixing reference. My central aim in this paper is to challenge this common understanding by highlighting (...) that the same argumentative schemas can be adapted to undermine a related non-description theory, according to which the reference of a name as used on a given occasion would semantically depend on broad mental states of the speaker. Once this is realised, it becomes evident that the falsity of the description theory is not the deepest lesson of the canonical arguments, but only a consequence of the deepest lesson. The most fundamental moral is that the speaker’s mental states, whether narrow or broad, do not always determine linguistic reference. (shrink)

Epistemic Reasoning and the Mental integrates the epistemology of reasoning and philosophy of mind. The book contains introductions to basic concepts in the epistemology of inference and to important aspects of the philosophy of mind. By examining the fundamental competencies involved in reasoning, Gerken argues that reasoning's epistemic force depends on the external environment in ways that are both surprising and epistemologically important. -/- For example, Gerken argues that purportedly deductive reasoning that exhibits the fallacy of equivocation may nevertheless transmit (...) epistemic warrant from its premise-beliefs to its conclusion-belief. This view is contrary to orthodoxy according to which such reasoning must be valid. But Gerken shows how this novel and unorthodox view is integrated in a psychologically plausible account of our reasoning competencies and a general epistemological framework. -/- What emerges is an approach to the philosophy of reasoning that is informed and constrained by both epistemology and philosophy of mind. -/- . (shrink)