Internalist and externalist aspects of justification in scientific inquiry

While epistemic justification is a central concern for both contemporary epistemology and philosophy of science, debates in contemporary epistemology about the nature of epistemic justification have not been discussed extensively by philosophers of science. As a step toward a coherent account of scientific justification that is informed by, and sheds light on, justificatory practices in the sciences, this paper examines one of these debates—the internalist–externalist debate—from the perspective of objective accounts of scientific evidence. In particular, we focus on Deborah Mayo’s error-statistical theory of evidence because it is a paradigmatically objective theory of evidence that is strongly informed by methodological practice. We contend that from the standpoint of such an objective theory of evidence, justification in science has both externalist and internalist characteristics. In reaching this conclusion, however, we find that the terms of the contemporary debate between internalists and externalists have to be redefined to be applicable to scientific contexts.     

Doxastic planning and epistemic internalism

In the following I discuss the debate between epistemological internalists and externalists from an unfamiliar meta-epistemological perspective. In doing so, I focus on the question of whether rationality is best captured in externalist or internalist terms. Using a conception of epistemic judgments as “doxastic plans,” I characterize one important subspecies of judgments about epistemic rationality—focusing on the distinctive rational/functional role these judgments play in regulating how we form beliefs. Then I show why any judgment that plays this role should be expected to behave the manner internalists predict. In this way, I argue, we can explain why our basic toolbox for epistemic evaluation includes an internalist conception of rationality.     

Epistemic justification and epistemic luck

Among epistemologists, it is not uncommon to relate various forms of epistemic luck to the vexed debate between internalists and externalists. But there are many internalism/externalism debates in epistemology, and it is not always clear how these debates relate to each other. In the present paper I investigate the relation between epistemic luck and prominent internalist and externalist accounts of epistemic justification. I argue that the dichotomy between internalist and externalist concepts of justification can be characterized in terms of epistemic luck. Whereas externalist theories of justification are incompatible with veritic luck but not with reflective luck, the converse is true for internalist theories of justification. These results are found to explain and cohere with some recent findings from elsewhere in epistemology, and support a surprising picture of justification, on which internalism and externalism are complementary rather than contradictory positions.     

Boghossian’s Inference Argument against Content Externalism Reversed*

I deal here with one of Boghossian’s arguments against content externalism, related to our inferential rationality (to use his term). According to his reasoning, the apriority of our logical abilities is inconsistent with certain externalist assumptions. Nevertheless, the problem constitutes an important challenge for any theory of content, not just for externalism. Furthermore, when we examine what internalists may propose to solve the problem, we see that externalists have at their disposal a more promising repertoire of possible replies than internalists. In that sense, insofar as Boghossian’s scenario is relevant to the debate externalism/internalism, it can be seen (against Boghossian’s original intention) as providing additional evidence for content externalism.     

Philosophy of Science: Interfaces between Logic and Knowledge Representation

Abstract

In this inaugural lecture I offer, against the background of a discussion of knowledge representation and its tools, an overview of my research in the philosophy of science. I defend a relational model-theoretic realism as being the appropriate meta-stance most congruent with the model-theoretic view of science as a form of human engagement with the world. Making use of logics with preferential semantics within a model-theoretic paradigm, I give an account of science as process and product. I demonstrate the power of the full-blown employment of this paradigm in the philosophy of science by discussing the main applications of model-theoretic realism to traditional problems in the philosophy of science.

I discuss my views of the nature of logic and of its role in the philosophy of science today. I also specifically offer a brief discussion on the future of cognitive philosophy in South Africa. My conclusion is a general look at the nature of philosophical inquiry and its significance for philosophers today.     

Svavarsdóttir’s Burden

It is sometimes observed that the debate between internalists and externalists about moral motivation seems to have reached a deadlock. There are those who do, and those who don??t, recognize the intuitive possibility of amoralists: i.e. people having moral opinions without being motivated to act accordingly. This makes Sigrun Svavarsdóttir??s methodological objection to internalism especially interesting, since it promises to break the deadlock through building a case against internalism (construed as a conceptual thesis), not on such intuitions, but on a methodological principle for empirical investigations. According to the objection, internalists incur the burden of argument, since they have to exclude certain explanations of the (verbal and non-verbal) behavior of apparent amoralists, while externalists don??t. In this paper I argue that the objection fails: the principle for empirical investigations is plausible, but Svavarsdóttir??s application of it to internalism is not. Once we clearly distinguish between the conceptual and the empirical aspects of the internalist and externalist explanations of apparent amoralists, we see that these views incur an equal burden of explanation. I end the paper with a positive suggestion to the effect that there is a third alternative, a view that involves accepting neither internalism nor externalism, which does not incur an explanatory burden of the relevant sort.     

Constructs,inferences, and mental measurement

The ‘construct’ concept occupies a significant place in psychology and, yet its role is misunderstood. Psychologists think that theorising in the area of psychological testing involves conjuring constructs, which are operationally defined and measured via psychometric tests. However, the ‘construct’ concept is unworkable and laden with confused philosophical baggage accrued under the hegemony of logical empiricism, and its real function in psychology is obscured. Via an analysis of its history and logic, I expose its flawed conception of the relation between theoretical and observable concepts and the way in which it serves the myth of mental measurement. Finally, it is shown how the actual logic of theorising in science, which entails that theories are best inferred from relevant phenomena, not imaginatively constructed, oppugns this myth and promises to coordinate theoretical concepts with the phenomena to be explained.     

Why Nothing Mental is Just in the Head

Mental internalists hold that an individual's mental features at a given time supervene upon what is in that individual's head at that time. While many people reject mental internalism about content and justification, mental internalism is commonly accepted regarding such other mental features as rationality, emotion-types, propositional-attitude-types, moral character, and phenomenology. I construct a counter-example to mental internalism regarding all these features. My counter-example involves two creatures: a human and an alien from 'Pulse World'. These creatures' environments, behavioral dispositions and histories are such that it is intuitively clear that they are mentally quite different, even while they are, for a moment, exactly alike with respect to what's in their heads. I offer positive reasons for thinking that the case I describe is indeed possible. I then consider ways in which mental internalists might attempt to account for this case, but conclude that the only plausible option is to reject mental internalism and to adopt a particular externalist alternative—a history-oriented version of teleo-functionalism.     

Moral Motivation Pluralism

Motivational externalists and internalists of various sorts disagree about the circumstances under which it is conceptually possible to have moral opinions but lack moral motivation. Typically, the evidence referred to are intuitions about whether people in certain scenarios who lack moral motivation count as having moral opinions. People’s intuitions about such scenarios diverge, however. I argue that the nature of this diversity is such that, for each of the internalist and externalist theses, there is a strong prima facie reason to reject it. That much might not be very controversial. But I argue further, that it also gives us a strong prima facie reason to reject all of these theses. This is possible since there is an overlooked alternative option to accepting any of them: moral motivation pluralism, the view that different internalist and externalist theses correctly accounts for different people’s concepts of moral opinions, respectively. I end the paper with a discussion of methodological issues relevant to the argument for moral motivation pluralism and of the consequences of this view for theories about the nature of moral opinions, such as cognitivism and non-cognitivism.     

Knowledge and cognitive integration

Cognitive integration is a defining yet overlooked feature of our intellect that may nevertheless have substantial effects on the process of knowledge-acquisition. To bring those effects to the fore, I explore the topic of cognitive integration both from the perspective of virtue reliabilism within externalist epistemology and the perspective of extended cognition within externalist philosophy of mind and cognitive science. On the basis of this interdisciplinary focus, I argue that cognitive integration can provide a minimalist yet adequate epistemic norm of subjective justification: so long as the agent’s belief-forming process has been integrated in his cognitive character, the agent can be justified in holding the resulting beliefs merely by lacking any doubts there was something wrong in the way he arrived at them. Moreover, since both externalist philosophy of mind and externalist epistemology treat the process of cognitive integration in the same way, we can claim that epistemic cognitive characters may extend beyond our organismic cognitive capacities to the artifacts we employ or even to other agents we interact with. This move is not only necessary for accounting for advanced cases of knowledge that is the product of the operation of epistemic artifacts or the interactive activity of research teams, but it can further lead to interesting ramifications both for social epistemology and philosophy of science.     

Know-how,intellectualism, and memory systems

ABSTRACT

A longstanding tradition in philosophy distinguishes between knowthatand know-how. This traditional “anti-intellectualist” view is soentrenched in folk psychology that it is often invoked in supportof an allegedly equivalent distinction between explicit and implicitmemory, derived from the so-called “standard model of memory.”In the last two decades, the received philosophical view has beenchallenged by an “intellectualist” view of know-how. Surprisingly, defenders of the anti-intellectualist view have turned to the cognitivescience of memory, and to the standard model in particular, todefend their view. Here, I argue that this strategy is a mistake. As it turns out, upon closer scrutiny, the evidence from cognitivepsychology and neuroscience of memory does not support theanti-intellectualist approach, mainly because the standard modelof memory is likely wrong. However, this need not be interpretedas good news for the intellectualist, for it is not clear that theempirical evidence necessarily supports their view either. I arguethat, currently, the philosophical debate is couched in terms thatdo not correspond to categories in psychological science. As aresult, the debate has to either be re-interpreted in a vocabularythat is amenable to experimental scrutiny, or it cannot be settledempirically.     

On Some Recent Attempts to Resolve the Debate between Internalists and Externalists

An important debate in moral philosophy concerns the thesis of internalism, of which the characteristic idea is that there is a conceptual link between moral judgment and motivation. According to the internalist, to judge that something is right is to be motivated to do it (at least under certain conditions). Externalists are those who deny the truth of internalism. There are two ways that either party to this debate may argue for their preferred position. The indirect approach requires defending an account of moral judgment and showing (for internalists) that it entails there is a conceptual link between moral judgment and motivation or (for externalists) that it entails there is no such link. In contrast, the direct approach requires arguing in favor of one position without assuming any particular account of moral judgment. In this paper, I examine two attempts—one by Michael Smith and one by Sigrún Svavarsdóttir—to resolve this debate between internalists and externalists by using the direct approach. Smith attempts to do so in favor of internalism while Svavarsdóttir makes the attempt in favor of externalism. I conclude that both attempts fail.     

Colour Inversion Problems for Representationalism

In this paper I examine whether representationalism can account for various thought experiments about colour inversions. Representationalism is, at minimum, the view that, necessarily, if two experiences have the same representational content then they have the same phenomenal character. I argue that representationalism ought to be rejected if one holds externalist views about experiential content and one holds traditional externalist views about the nature of the content of prepositional attitudes. Thus, colour inversion scenarios are more damaging to externalist representationalist views than have been previously thought. More specifically, I argue that representationalists who endorse externalism about experiential content either have to become internalists about the content of prepositional attitudes or they have to adopt a novel variety of externalism about the content of prepositional attitudes. This novel type of prepositional attitude externalism is investigated. It can be seen that adopting it forces one to reject Putnam's and Burge's externalist considerations about the nature of the prepositional attitudes.     

The long past and the short history of social psychology

In 1908 Ebbinghaus distinguished between the long past and the short history of psychology. The short history dated from 1879 when Wundt established a psychological laboratory at Leipzig. The long past concerns the time when psychology was a branch of philosophy. Implicit in such a break with the past is a positivist philosophy of science. I show how this philosophy of science distorts the historical record. I then analyse the history of social psychology. Unwittingly Lindzey and Aronson (1985) distinguish between the long past of social psychology as part of the Western intellectual tradition and its short history as an experimental science that is mainly American. Murchison's Handbook of Social Psychology (1935), whilst marking the boundary between the long past and the short history, belongs to the long past. The break with tradition came in 1954, when Lindzey published the first Handbook in the modern series. There is a self-conscious need, in the post World War II era, to train a whole new generation of social psychologists. The Lindzey series of Handbooks meets that need. The ‘progress’ of modern social psychology is now measured in terms of its distance from the Murchison milestone of 1935.     

Methodological naturalism and epistemic internalism

Epistemic naturalism holds that the results or methodologies from the cognitive sciences are relevant to epistemology, and some have maintained that scientific methods are more compatible with externalist theories of justification than with internalist theories. But practically all discussions about naturalized epistemology are framed exclusively in terms of cognitive psychology, which is only one of the cognitive sciences. The question addressed in this essay is whether a commitment to naturalism really does favor externalism over internalism, and we offer reasons for thinking that naturalism in epistemology is compatible with both internalist and externalist conceptions of justification. We also argue that there are some distinctively internalist aims that are currently being studied scientifically and these notions, and others, should be studied by scientific methods. This essay is dedicated to Deborah Mayo, who has long advocated using error statistical techniques to analyze and resolve epistemological puzzles in the philosophy of science. This essay follows the same spirit by advocating that computational concepts and techniques be applied within the heart of traditional, analytic epistemology.     

The harms of ignoring the social nature of science

In this paper I argue that philosophers of science have an obligation to recognize and engage with the social nature of the sciences they assess if those sciences are morally relevant. Morally-relevant science is science that has the potential to risk harm to humans, non-humans, or the environment. My argument and the approach I develop are informed by an analysis of the philosophy of biology literature on the criticism of evolutionary psychology (EP), the study of the evolution of human psychology and behaviour. From this literature, I tease out two different methods of scientific critique. The first I call the “truth-detectional” approach. Those who take this approach are first and foremost concerned about the truth of EP claims as that truth can be determined by evidence. The second I call the “social-dimensional” approach. Those who take this approach talk about the production and truth of EP claims but within a social framework. On this account, the legitimacy and perceived legitimacy of EP claims are not separate from the institutional and social processes and values that lend to their production. I show that the truth-detectional approach risks harms to society and to the philosophy of science, but that the social-dimensional approach avoids these harms. Philosophers of science, therefore, should take a social-dimensional approach to the assessment of morally-relevant science.

     

VARIETIES OF EXTERNALISM

Our aim is to provide a topography of the relevant philosophical terrain with regard to the possible ways in which knowledge can be conceived of as extended. We begin by charting the different types of internalist and externalist proposals within epistemology, and we critically examine the different formulations of the epistemic internalism/externalism debate they lead to. Next, we turn to the internalism/externalism distinction within philosophy of mind and cognitive science. In light of the above dividing lines, we then examine first the extent to which content externalism is compatible with epistemic externalism; second, whether active externalism entails epistemic externalism; and third whether there are varieties of epistemic externalism that are better suited to accommodate active externalism. Finally, we examine whether the combination of epistemic and cognitive externalism is necessary for epistemology and we comment on the potential ramifications of this move for social epistemology and philosophy of science.     

Wishful Thinking and the Unconscious: A Reply to Gouws

Abstract

This paper argues against the view that the Freudian unconscious can be understood as an extension of ordinary belief-desire psychology. The paper argues that Freud’s picture of the mind challenges the paradigm of folk psychology, as it is understood by much contemporary philosophy of psychology and cognitive science. The dynamic unconscious postulated by psychoanalysis operates according to rules and principles that are distinct in kind from those rules that organise rational and conscious thought. Psychoanalysis offers us a radical reconception of our ordinary way of thinking about our own minds.     

Philosophers should prefer simpler theories

Recent years have seen considerable attention paid to the methodology of philosophy. The puzzle is simple—if philosophy is not an empirical discipline, how can one philosophical theory be rationally preferred over another? One answer to this question is that we should apply the theoretical virtues. Foremost among these theoretical virtues is simplicity—so perhaps we should prefer simpler philosophical theories to more complex ones. Huemer (Philos Q 59:216–236, 2009) objects that the reasons to prefer simpler theories in science do not apply in philosophy. I will argue that Huemer is mistaken—the arguments he marshals for preferring simpler theories in science can also be applied in philosophy. Like Huemer, I will focus on the philosophy of mind and the nominalism/Platonism debate. But I want to engage with the broader issue of whether simplicity is relevant to philosophy.