Commonsense Consequentialism is a book about morality, rationality, and the interconnections between the two. In it, Douglas W. Portmore defends a version of consequentialism that both comports with our commonsense moral intuitions and shares with other consequentialist theories the same compelling teleological conception of practical reasons. Broadly construed, consequentialism is the view that an act's deontic status is determined by how its outcome ranks relative to those of the available alternatives on some evaluative ranking. Portmore argues that outcomes (...) should be ranked, not according to their impersonal value, but according to how much reason the relevant agent has to desire that each outcome obtains and that, when outcomes are ranked in this way, we arrive at a version of consequentialism that can better account for our commonsense moral intuitions than even many forms of deontology can. What's more, Portmore argues that we should accept this version of consequentialism, because we should accept both that an agent can be morally required to do only what she has most reason to do and that what she has most reason to do is to perform the act that would produce the outcome that she has most reason to want to obtain.Although the primary aim of the book is to defend a particular moral theory, Portmore defends this theory as part of a coherent whole concerning our commonsense views about the nature and substance of both morality and rationality. Thus, it will be of interest not only to those working on consequentialism and other areas of normative ethics, but also to those working in metaethics. Beyond offering an account of morality, Portmore offers accounts of practical reasons, practical rationality, and the objective/subjective obligation distinction. (shrink)

In the TACITUS project for using commonsense knowledge in the understanding of texts about mechanical devices and their failures, we have been developing various commonsense theories that are needed to mediate between the way we talk about the behavior of such devices and causal models of their operation. Of central importance in this effort is the axiomatization of what might be called commonsense metaphysics. This includes a number of areas that figure in virtually every domain of discourse, (...) such as granularity, scales, time, space, material, physical objects, shape, causality, functionality, and force. Our effort has been to construct core theories of each of these areas, and then to define, or at least characterize, a large number of lexical items in terms provided by the core theories. In this paper we discuss our methodological principles and describe the key ideas in the various domains we are investigating. (shrink)

This book proposes a series of interconnected arguments against the view that interpersonal understanding involves the use of a 'folk' or 'commonsense' psychology. Ratcliffe suggests that folk psychology, construed as the attribution of internal mental states in order to predict and explain behaviour, is a theoretically motivated and misleading abstraction from social life. He draws on phenomenology, neuroscience and developmental psychology to offer an alternative account that emphasizes patterned interactions between people in shared social situations.

The article defends ethical vegetarianism, which, for present purposes, is stipulatively taken to be the view that it is morally wrong to eat animals when equally nutritious plant-based foods are available. Several examples are introduced to show that we all agree that animals deserve some direct moral consideration and to help identify and clarify several commonsense moral principles—principles we all accept. These principles are then used to argue that eating animals is morally wrong. Since you no doubt accept these (...) principles, the argument demonstrates that consistency with your own beliefs and values commits you to the immorality of eating meat and requires you to alter your eating behavior accordingly. [Article available online at no cost at links listed above.]. (shrink)

Analytic philosophy has transgender trouble. In this paper, I explore potential explanations for this trouble, focusing on the notion of 'cisgender commonsense' and its place in philosophical methodology.

I aim to sketch a view of a methodology for metaphysics, suggested by Hookway’s reading of C. S. Peirce, that allows one to hold realist metaphysical views (i.e. ones that avoid anti-realism, or idealism) about some questions, but avoids merely verbal disputes, and ‘unwieldy realism’. It is named for Peirce’s ‘Critical Commonsensism’, and uses pragmatic transcendental arguments to defend realism about non-optional basic commitments, e.g. to generality, agency, normativity, modality, change, concrete substances, and other minds. It is critical because we (...) are entitled to hope that the presuppositions of our most basic non-optional commitments obtain, and commonsensical because we begin with our current practices and proceed with anti-sceptical fallibilism. I consider a number of objections to the proposed methodology, including concerns associated with our identification of presuppositions, with the basic non-optional commitments they are presuppositions of, and the community who are so committed. These questions, I will claim, are open to empirical and anthropological investigation, but can begin with careful observation of human practices of action, inquiry, explanation, and justification. I will defend the view we end up with as realist, rather than anti-realist or quasi-realist, and argue that, given holism of confirmation, we are plausibly justified in believing (rather than merely hoping) a number of metaphysical theses that have stood the test of time. (shrink)

There seem to be many kinds of moral duties. We should keep our promises; we should pay our debts of gratitude; we should compensate those we’ve wronged; we should avoid doing or intending harm; we should help those in need. These constitute, some worry, an unconnected heap of duties: the realm of commonsense morality is a disorganized mess. In this paper, we outline a strategy for unifying commonsense moral duties. We argue that they can be understood in terms (...) of contact with value. You are in contact with a value when you are manifest in it or when it is manifest in you. You have reason to get in contact with the good and avoid contact with evil. And when you’re in contact with a value, the weight of the reasons it grounds are amplified for you. These ideas, we argue, can bring order to the chaos of commonsense morality. (shrink)

Truth is a pervasive feature of ordinary language, deserving of systematic study, and few theorists of truth have endeavoured to chronicle the tousled conceptual terrain forming the non-philosopher’s ordinary view. Joseph Ulatowski recasts the philosophical treatment of truth in light of historical and recent work in experimental philosophy. He argues that the commonsense view of truth is deeply fragmented along two axes, across different linguistic discourses and among different demographics. Call this endoxic alethic pluralism. To defend this view, four (...) conclusions must be reached: (1) endoxic alethic pluralism should be compatible with how the everyday person uses truth, (2) the common conception of truth should be derivable from empirical data, (3) this descriptive metaphysical project is one aspect of a normative theory of truth, and (4) endoxic alethic pluralism is at least partially immune to challenges facing the ecological method in experimental philosophy and alethic pluralism. (shrink)

It would be a mistake to deny commonsense intuitions a role in developing a theory of consciousness. However, philosophers have traditionally failed to probe commonsense in a way that allows these commonsense intuitions to make a robust contribution to a theory of consciousness. In this paper, I report the results of two experiments on purportedly phenomenal states and I argue that many disputes over the philosophical notion of ‘phenomenal consciousness’ are misguided—they fail to capture the interesting connection (...) between commonsense ascriptions of pain and emotion. With this data in hand, I argue that our capacity to distinguish between ‘mere things’ and ‘subjects of moral concern’ rests, to a significant extent, on the sorts of mental states that we take a system to have. (shrink)

Chinese translation by Zhuanxu Xu. Analytic philosophy has transgender trouble. In this paper, I explore potential explanations for this trouble, focusing on the notion of 'cisgender commonsense' and its place in philosophical methodology.

Psychologists and philosophers are often tempted to make general claims about the importance of certain experimental results for our commonsense notions of intentional agency, moral responsibility, and free will. It is a strong intuition that if the agent does not intentionally control her own behavior, her behavior will not be an expression of agency, she will not be morally responsible for its consequences, and she will not be acting as a free agent. It therefore seems natural that the interest (...) centers on the notion of intentional control. If it can be experimentally shown that agents do as a matter of fact not control their own actions, even though they think they do, it will have far reaching consequences for our moral psychology. In this paper I look at recent eliminative arguments allegedly demonstrating that our commonsense notion of intentional control is incompatible with experimental data in support of the dual visual stream theory. (shrink)

This paper deals with recent work on the role of objects in cognition and the methodological problems created by findings and theories in various strands of the cognitive sciences. The term ‘object’ is here mean to refer to spatially extended items that persist over time. The main theses of this paper are as follows. First, we should ideally consider the various notions and representations of objects and objecthood that emerge from the literature as components of something akin to the notion (...) of internalized language that is at the core of mainstream linguistics. There appear to be as many different I-representations of objects as there are fields of investigation, and this creates some interesting methodological problems. Second, it is important to assess whether these different notions may be traced back to a common ground of underlying principles. Existing unification attempts either underestimate the differences between the I-representations or pave the way to an eliminative position that would dispose of the variety of I-notions altogether. The paper builds on these previous attempts and proposes to use again an analogy from linguistics in order to show how commonalities and differences between the various I-notions can be accounted for. Third, this framework can allow us to make sense of some so far piecemeal analyses of the commonsense notion of an object. (shrink)

Reid rejects the image theory --the representative or indirect realist position--that memory-judgements are inferred from or otherwise justified by a present image or introspectible state. He also rejects the trace theory , which regards memories as essentially traces in the brain. In contrast he argues for a direct knowledge account in which personal memory yields unmediated knowledge of the past. He asserts the reliability of memory, not in currently fashionable terms as a reliable belief-forming process, but more elusively as a (...) principle of Commonsense. There remains a contemporary consensus against Reid's position. I argue that Reid's critique is essentially sound, and that the consensus is mistaken; personal memory judgements are spontaneous and non-inferential in the same way as perceptual judgements. But I question Reid's account of the connection between personal memory and personal identity. My primary concern is rationally reconstructive rather than scholarly, and downplays recent interpretations of Reid's faculty psychology as a precursor of functionalism and other scientific philosophies of mind. (shrink)

This paper challenges Mäki's argument about commonsensibles by offering a case study from contemporary microeconomics – contemporary revealed preference theory (hereafter CRPT) – where terms like "preference," "utility," and to some extent "choice," are radical departures from the common sense meanings of these terms. Although the argument challenges the claim that economics is inhabited solely by commonsensibles, it is not inconsistent with such folk notions being common in economic theory.

In this paper, we present an approach to commonsense causal explanation of stories that can be used for automatically determining the liable party in legal case descriptions. The approach is based on, a core ontology for law that takes a commonsense perspective. Aside from our thesis that in the legal domain many terms still have a strong commonsense flavour, the descriptions of events in legal cases, as e.g. presented at judicial trials, are cast in commonsense terms (...) as well. We present design principles for representing commonsense causation, and describe a process-based approach to automatic identification of causal relations in stories, which are described in terms of the core ontology. The resulting causal explanation forms a necessary condition for determining the liability and responsibility of agents that play a role in the case. We describe the basic architecture and working of, the demonstrator we are constructing to test the validity of our process oriented view on commonsense causation. This view holds that causal relations are in fact abstractions constructed on the basis of our commonsense understanding of physical and mental processes. (shrink)

Commonsensism is a thesis about commonsense beliefs: our commonsense beliefs are items of knowledge (or should be so regarded) that have epistemic or methodological priority. This account of commonsensism risks making our commonsense beliefs impervious to philosophical argument. But in Santayana's commonsensism, what deserves our trust is not our commonsense beliefs but the development of common sense over successive generations. Our commonsense beliefs deserve only a secondary or subsidiary trust; we trust them only insofar as (...) we trust the momentum of common sense. I examine Santayana's distinctive form of commonsensism and explain why he avoids putting trust primarily in commonsense beliefs. (shrink)

Trent Dougherty argues (contra Jonathan Matheson) that when taking into consideration the probabilities involving skeptical theism (ST) and gratuitous evils, an agent may reasonably affirm both ST and that gratuitous evils exist. In other words, Dougherty thinks that assigning a greater than .5 probability to ST is insufficient to defeat the commonsense problem of evil. I argue that Dougherty’s response assumes, incorrectly, that ST functions solely as an evidential defeater, and that, when understood as a closure of inquiry defeater, (...) ST may still defeat reasonable belief in gratuitous evils, even in the face of strong evidence that gratuitous evils exist. (shrink)

Over two decades ago a "quite revolution" overwhelmingly replaced knowledgebased approaches in natural language processing (NLP) by quantitative (e.g., statistical, corpus-based, machine learning) methods. Although it is our firm belief that purely quantitative approaches cannot be the only paradigm for NLP, dissatisfaction with purely engineering approaches to the construction of large knowledge bases for NLP are somewhat justified. In this paper we hope to demonstrate that both trends are partly misguided and that the time has come to enrich logical semantics (...) with an ontological structure that reflects our commonsense view of the world and the way we talk about in ordinary language. In this paper it will be demonstrated that assuming such an ontological structure a number of challenges in the semantics of natural language (e.g., metonymy, intensionality, copredication, nominal compounds, etc.) can be properly and uniformly addressed. (shrink)

On commonsense morality, there are two types of situations where an agent is not required to maximize the impersonal good. First, there are those situations where the agent is prohibited from doing so--constraints. Second, there are those situations where the agent is permitted to do so but also has the option of doing something else--options. I argue that there are three possible explanations for the absence of a moral requirement to maximize the impersonal good and that the commonsense (...) moralist must appeal to all three in order to account for the vast array of constraints and options we take there be. (shrink)

I discuss aspects of Freudian theory that have entered folk psychology.

Commonsensism takes commonsense starting points seriously in responding to and rejecting radical skepticism. Skeptical theism endorses a sort of skepticism that, according to some, has radical skeptical implications. This suggests that there is a tension between commonsensism and skeptical theism that makes it difficult for a person rationally to hold both. In this paper I explain why there is no tension between those two positions. This explanation is then used to respond to several recent objections to skeptical theism. Along (...) the way I offer a theory of error to explain why people mistakenly believe, of some horrific evils, that it’s just obvious that a perfectly loving God wouldn’t permit them. (shrink)

We describe an experimental approach toward implementing a commonsense "microtheory" for buying and selling. Our prototype system characterizes how intelligent agents hold items and money, how they buy and sell items, and the way money and items are transferred. The ontology of the system includes money (cash, check, credit card), agents (people, organizations), items (movable, real estate, service), barter, and the notions of transfer, loan, buying by installments, profit, and loss.

Philosophers have been debating the nature of folk or commonsense psychology for three decades. We ask: What are the resources that enable us to navigate the social world, anticipating what others do, explaining what they’ve done, and perceiving them--and ourselves--as selves, subjects, persons, with beliefs, desire, perceptions, and feelings? Unlike traditional philosophy of mind, instead of directly confronting the mind-body problem and subproblems such as intentionality and qualia, we step back and look at the resources that give us the (...) concepts that get us into these knots. (shrink)

This paper offers a commonsense response to Alvin Plantinga’s evolutionary argument against naturalism. The first stage of that argument concludes that the probability that our cognitive faculties are reliable (R) is low or inscrutable given the claims that naturalism is true (N) and that our cognitive faculties came into existence by way of the mechanisms of evolution (E)—i.e., that P(R/N&E) is low or inscrutable. The second stage claims that the fact that P(R/N&E) is low or inscrutable constitutes a defeater (...) for belief in R, for anyone who endorses N&E. For the purposes of this paper, I will grant to Plantinga the conclusion of the first stage of his argument—that P(R/N&E) is low or inscrutable when specified to us. My contention is simply that, given what we can know via commonsense, this does not necessarily constitute a defeater for R for the supporter of N&E. (shrink)

In this paper I discern two concepts of meaning: meaning O - which is assigned by us on the basis of our commonsense conception in order to constitute our own daily reality - and meaning I, which we assign when we interpret reality scientifically. Authors who contend that the commonsense conception is nothing but a kind of scientific theory, do not see that the two fields of life have their own concept of meaning. Commonsense and science are (...) not separate from each other, however: though both have their own practices, the way we interpret reality scientifically presupposes our commonsense conception. (shrink)

This is Chapter 4 of my Commonsense Consequentialism: Wherein Morality Meets Rationality. In this chapter, I argue that that any plausible nonconsequentialist theory can be consequentialized, which is to say that, for any plausible nonconsequentialist theory, we can construct a consequentialist theory that yields the exact same set of deontic verdicts that it yields.

Abstract The purpose of this paper is twofold: (i) we will argue that formal semantics might have faltered due to its failure in distinguishing between two fundamentally very different types of concepts, namely ontological concepts, that should be types in a strongly-typed ontology, and logical concepts, that are predicates corresponding to properties of, and relations between, objects of various ontological types; and (ii) we show that accounting for these differences amounts to a new formal semantics; one that integrates lexical and (...) compositional semantics in one coherent framework and one where formal semantics is embedded with a strongly typed ontology; an ontology that reflects our commonsense knowledge of the world and the way we talk about it in ordinary language. We will show how in such a framework a number of challenges in the semantics of natural language are adequately and systematically treated. (shrink)

Abstract Finding a moral justification for humanitarian intervention has been the objective of a great deal of academic inquiry in recent years. Most of these treatments, however, make certain arguments or assumptions about the morality of humanitarian intervention without fully exploring their precise philosophical underpinnings, which has led to an increasingly disjointed body of literature. The purpose of this essay, therefore, is to suggest that the conventional arguments and assumptions made about the morality of humanitarian intervention can be encompassed in (...) what is essentially a consequentialist framework. After a brief examination of consequentialist ethics, this essay reveals a number of morally relevant factors concerning humanitarian intervention, wherein I suggest that the general consensus in the literature on these factors constitutes ?commonsense morality?. In doing so, I argue that consequentialism as a theory of the right provides the best fit with commonsense morality on humanitarian intervention. This is important not only to reveal the precise philosophical underpinnings of the debate, but also to bring ethical, prudential and political considerations together in a coherent ethical discourse. (shrink)

In the 2020 Yale Law Journal article, “Commonsense Consent,” Roseanna Sommers argues that deception is compatible with the layperson’s intuitive sense of consent. That is, unlike the canonical understanding of consent defended by legal scholars and philosophers, the notion of consent defended by the folk is not invalidated by deception. In this study, I find that while respondents do appear to attribute consent to victims of deception, they do so in a limited number of contexts – i.e., they attribute (...) de re consent to victims of de dicto deception and attribute de dicto consent to victims of de re deception. When the two varieties of consent and deception are properly disambiguated and matched type for type however, we see the reverse phenomenon – i.e., participants refrain from attributing de dicto consent to de dicto deception and refrain from attributing de re consent to de re deception. If this is right, rather than saying, as Sommers does, that deception generally fails to invalidate commonsense consent, we should refine our understanding of commonsense consent to include two varieties of consent, each of which is in fact invalidated by its own variety of deception. (shrink)

Fifty years of effort in artificial intelligence (AI) and the formalization of legal reasoning have produced both successes and failures. Considerable success in organizing and displaying evidence and its interrelationships has been accompanied by failure to achieve the original ambition of AI as applied to law: fully automated legal decision-making. The obstacles to formalizing legal reasoning have proved to be the same ones that make the formalization of commonsense reasoning so difficult, and are most evident where legal reasoning has (...) to meld with the vast web of ordinary human knowledge of the world. Underlying many of the problems is the mismatch between the discreteness of symbol manipulation and the continuous nature of imprecise natural language, of degrees of similarity and analogy, and of probabilities. (shrink)

This volume is a collection of original contributions about the core knowledge in fundamental domains. It includes work on naive physics, such as formal specifications of intuitive theories of spatial relations, time causality, substance and physical objects, and on naive psychology.

This article historicises a dream analytic intervention launched in the 1930s by Scottish psychiatrist and future professor of psychological medicine at the University of Glasgow, Thomas Ferguson Rodger. Intimate therapeutic meetings with five male patients are preserved within the so-called ‘dream books’, six manuscript notebooks from Rodger’s earlier career. Investigating one such case history in parallel with lecture material, this article elucidates the origins of Rodger’s adapted, rapport-centred psychotherapy, offered in his post-war National Health Service, Glasgow-based department. Oriented in a (...) reading of the revealing fourth dream book, the article unearths a history of the reception and adaptation of psychoanalysis from within a therapeutic encounter and in a non-elite context. Situating Rodger’s psychiatric development in his Glasgow environment, it then contextualises the psychosocial narrative of the fourth book in relation to contrasting therapeutic commitments: an undiluted Freudianism and a pragmatic ‘commonsense’ psychotherapy, tempered to the clinical psychiatric, and often working-class, interwar Glasgow context. An exploration of pre-recorded dreams, transcribed free associations, and ‘weekly reports’ reveals that in practice, Rodger’s Meyerian attitude worked productively with Freudian techniques to ennoble the patient’s psychosocial testimony and personal wisdom. This psychotherapeutic eclecticism underpinned and made visible the patient’s concurrent faith in and resistance to psychoanalytic interpretation. Chronicling a collaborative route to psychotherapeutic knowledge within a discrete encounter, the article situates post-war treatment values in the interwar impasse of outpatient psychiatry. (shrink)

Two college-age samples, one from the United States and one from Spain, were studied with mixed methods, phenomenological and traditional experimental - regarding the alleged foundational topic of `unfairness'. Participants gave their instantiations of `It's not fair!', which were deconstructed and qualitatively analyzed to find and compare the essential types of unfairness. Using traditional experimental methods, unfairness vignettes were rated by severity and quantitatively analyzed, to see whether the two cultural groups make similar or different distinctions among the concepts of (...) `unfairness', `injustice' and `misfortune'. From qualitative analyses, the fairness principles of `equity' and `equality' appeared in both groups, but `honor and dignity' violations were much more frequent in the Spanish group, as different fairness principles interacted in complex ways. From the quantitative analyses, `unfairness' was the broadest of the three concepts, extending beyond `injustice' and both cultural groups viewed `misfortunes' as `unfairnesses'. Implications for a commonsense morality across cultures are discussed. (shrink)

Realism about the external world enjoys little philosophical support these days. I rectify this predicament by taking a relatively pragmatist line of thought to defend commonsense realism; I support commonsense realism through an interpretation and application of Donald Davidson’s notion of triangulation, the triangle composed of two communicators coordinating and correcting their responses with a shared causal stimulus. This argument is important because it has a crucial advantage over the often used abductive argument for realism. My argument avoids (...) unwarranted conclusions, whereas the abductive argument is “inflationary” because it reaches beyond the limits of evidence for its realist conclusion. To illustrate the problems of the abductive argument and motivate my Davidsonian approach, I take a brief look at the abductive argument for realism in Frederick Will’s work. (shrink)

In contemporary philosophy of mind, the status of commonsense psychology has been vigorously discussed. However, philosophers have spent relatively little time determining what the commonsense theory is. In the thesis, I try to uncover the essential features of commonsense psychology. I use philosophical analysis as well as evidence from anthropology, linguistics, and psychology to develop an account of the theory. ;In the first chapter, I defend the claim that we rely on a psychological theory in the lay (...) prediction of behavior. I argue that the rival view of this capacity, simulation theory, has a number of philosophical and empirical shortcomings. ;In Chapter Two, I maintain that causation is the central explanatory relation in commonsense psychology. However, I argue that the type of causation invoked by commonsense psychology is quite different from the Humean notion of causation that reigns in philosophy and psychology. ;In Chapter Three I argue that, contrary to the received view, at least part of commonsense psychology is not intentional psychology. An intentional psychology individuates mental states by their contents. However, I argue that there is no theory of content according to which content individuation will parallel belief individuation. I also argue that in contrast to intentional psychology, we can attribute beliefs that lack intelligible content. ;In Chapter Four I sketch an account of belief that makes explicit appeal to linguistic behavior. I extol the virtues of such accounts and argue that the standard objections against such accounts are far from decisive. ;In the final chapter, I argue that on the commonsense view beliefs are typically internal representations. I also argue that the generalizations of commonsense psychology, like the generalizations of Stich's syntactic psychology, specify the causal relations between mental states via the formal relations among content sentences. The picture of commonsense psychology that emerges is a benign representational theory of mind according to which mental states typically have content, but content isn't essential to the prediction and explanation of behavior. (shrink)

Inventing novel knowledge to solve problems is a crucial, creative, mechanism employed by humans, to extend their range of action. In this talk, I will show how commonsense reasoning plays a crucial role in this respect. In particular, I will present a cognitively inspired reasoning framework for knowledge invention and creative problem solving exploiting TCL: a non-monotonic extension of a Description Logic (DL) of typicality able to combine prototypical (commonsense) descriptions of concepts in a human-like fashion. The proposed (...) approach has been tested both in the task of goal-driven concept invention and has additionally applied within the context of serendipity-based recommendation systems. I will present the obtained results, the lessons learned, and the road ahead of this research path. (shrink)

This work locates the historical and conceptual foundations of cognitive science in the "commonsense" psychology of the philosopher Thomas Reid. I begin with Reid's attack on his rationalist and empiricist competitors of the 17th and 18th centuries. I then present his positive theory as a sophisticated faculty psychology appealing to innateness of mental structure. Reidian psychological faculties are equally trustworthy, causally independent mental powers, and I argue that they share nine distinct properties. This distinguishes Reidian 'intentionalism' from idealist 'representationalism,' (...) which derive cognitive content either from the inherited structure of faculties of from the occurrent structure of sensory activity. ;Next, I turn to consciousness and reflection for a contemporary Reidian response to traditional phenomenology. Unlike reflection, faculties of reason and remembrance are not causally mediated by consciousness. My interpretation of Reid is that 'Humean causation' of individual faculty structure accounts only for 'natural intentionality,' while 'efficient causation' of faculty interrelations accounts for cognitive 'personal intentionality.' ;I then proceed by adopting a form of computational description for reconstructing this view as a computational theory of mind. I contrast functional analyses in explanations of some capacities with computational and componential analyses in explanations of other, intentional capacities, in which some processes must be taken to semantically encode and govern the roles of others. This step reconstructs the Reidian notion of intentional operations as requiring an explanation of component faculties and their representation-governed interactions. I argue that properties of faculties delimiting these interactions under Reid's theory parallel those in Fodor's essay on the "modularity of mind," although the reasons given for individual criteria are often very different. Fodor also proposes a trichotomous mental structure, but I find that a third level of "central systems" is a myth engendered by causal information theory. Such an analysis cannot capture generalizations over the internal representation of semantic roles that determines the character of faculty relations. This requirement for any computational account of cognition is precisely the motivation for the reconstructed Reidian theory. Thus, it comports more favorably with the explanatory program constitutive of a computational cognitive science. (shrink)