In Defence of Direct Realism

In her careful consideration of my book, The Problem of Perception (henceforth, PP), Susanna Siegel highlights what she takes to be a number of shortcomings in the work. First, she suggests that a sense-datum theorist has two options–what she calls the "complex sense-data option" and the "two-factor option"–that survive the argument of my book unscathed. I consider these two options in the first two sections of this reply. Secondly, she criticizes my suggestion that there are three and only three basic and independent sources of perceptual consciousness: an issue I take up in my third section. Thirdly, she expresses reservations about my response to the argument from hallucination. In particular, she argues that the phenomenological considerations on which I put so much weight cannot settle the fundamental issue here. I address this criticism in the fourth section of this reply. Finally, she spends a certain amount of time discussing the notion of a "veridicality-rele-vant property", a topic to which I devote the concluding section of this reply.     

In Defence of an Autocentric Account of Ubuntu

Abstract

This response to Thaddeus Metz’s “Toward an African Moral Theory” engages with his discussion of an autocentric, or “self-development” account of ubuntu as a morally normative theory. It is argued that an autocentric ubuntu, sharing certain strategies available to eudaimonist ethics, is both more plausible and more attractive than Metz suggests, particularly in that it engages directly with the immoralist (amoralist).     

Indirect Realism with a Human Face

Epistemic Indirect Realism (EIR) is the position that justification for contingent propositions about the extra‐mental world requires an inference based on a subjective, experiential mental state. One objection against EIR is that it runs contrary to common sense and practice; in essence, ordinary people do not form beliefs about things in the external world on the basis of experiential mental states. This objection implies EIR is contrary to ordinary experience, impractical, and leads to scepticism. In this paper, I will defend EIR against this objection by distinguishing EIR based on conceptual awareness and non‐conceptual awareness. In particular, I will argue that direct acquaintance provides sufficient (non‐conceptual) awareness that can explain how ordinary folks are capable of forming justified beliefs about the external world in a way consistent with EIR. Overall, I present a framework for showing that EIR can satisfy ordinary epistemic practices without betraying human nature or over‐intellectualizing the required epistemic standards for possessing a justified belief.     

Moral Realism: A Defence

Book Information Moral Realism: A Defence. Moral Realism: A Defence Russ Shafer-Landau, Oxford : Clarendon Press, 2003, x + 322, £35 (cloth) By Russ Shafer-Landau. Clarendon Press. Oxford. Pp. x + 322. £35 (cloth:),     

Reliabilism and the Abductive Defence of Scientific Realism

According to the “no-miracles argument” (NMA), truth is the best explanation of the predictive-instrumental success of scientific theories. A standard objection against NMA is that it is viciously circular. In Scientific Realism: How Science Tracks Truth Stathis Psillos has claimed that the circularity objection can be met when NMA is supplemented with a reliabilist approach to justification. I will try to show, however, that scientific realists cannot take much comfort from this policy: if reliabilism makes no qualifications about the domain where inference to the best explanation is reliable, scientific realists flagrantly beg the question. A qualified version of reliabilism, on the other side, does not entitle us to infer the realist conclusion. I conclude, then, that Psillos’s proposal does not make any significant progress for scientific realism.

From Standard Scientific Realism and Structural Realism to Best Current Theory Realism

I defend a realist commitment to the truth of our most empirically successful current scientific theories—on the ground that it provides the best explanation of their success and the success of their falsified predecessors. I argue that this Best Current Theory Realism (BCTR) is superior to preservative realism (PR) and the structural realism (SR). I show that PR and SR rest on the implausible assumption that the success of outdated theories requires the realist to hold that these theories possessed truthful components. PR is undone by the fact that past theories succeeded even though their ontological claims about unobservables are false. SR backpeddles to argue that the realist is only committed to the truth about the structure of relations implied by the outdated theory, in order to explain its success. I argue that the structural component of theories is too bare-bones thin to explain the predictive/explanatory success of outdated theories. I conclude that BCTR can meet these objections to PR and SR, and also overcome the pessimistic meta-induction.     

In Defence of Bad Science and Irrational Policies: an Alternative Account of the Precautionary Principle

In the first part of the paper, three objections to the precautionary principle are outlined: the principle requires some account of how to balance risks of significant harms; the principle focuses on action and ignores the costs of inaction; and the principle threatens epistemic anarchy. I argue that these objections may overlook two distinctive features of precautionary thought: a suspicion of the value of “full scientific certainty”; and a desire to distinguish environmental doings from allowings. In Section 2, I argue that any simple distinction between environmental doings and allowings is untenable. However, I argue that the appeal of such a distinction can be captured within a relational account of environmental equity. In Section 3 I show how the proposed account of environmental justice can generate a justification for distinctively “precautionary” policy-making.     

Three Paradigms of Scientific Realism: A Truthmaking Account

This paper investigates the nature of scientific realism. I begin by considering the anomalous fact that Bas van Fraassen's account of scientific realism is strikingly similar to Arthur Fine's account of scientific non-realism. To resolve this puzzle, I demonstrate how the two theorists understand the nature of truth and its connection to ontology, and how that informs their conception of the realism debate. I then argue that the debate is much better captured by the theory of truthmaking, and not by any particular theory of truth. To be a scientific realist is to adopt a realism-relevant account of what makes true the scientific theories one accepts. The truthmaking approach restores realism's metaphysical core—distancing itself from linguistic conceptions of the debate—and thereby offers a better characterization of what is at stake in the question of scientific realism.     

In Defence of Ubuntu

The article defends ubuntu against the assault by Enslin and Horsthemke (Comp Educ 40(4):545–558, 2004). It challenges claims that the Africanist/Afrocentrist project, in which the philosophy of ubuntu is central, faces numerous problems, involves substantial political, moral, epistemological and educational errors, and should therefore not be the basis for education for democratic citizenship in the South African context. The article finds coincidence between some of the values implicit in ubuntu and some of the values that are enshrined in the constitution of South Africa and that on that basis argues that ubuntu has the potential to serve as a moral theory and a public policy. The educational upshot of this article’s argument is that South Africa’s educational policy framework not only places a high premium on ubuntu, which it conceives as human dignity, but it also requires the schooling system to promote ubuntu-oriented attributes and dispositions among the learners. The article finds similarities between ubuntu and bildung, whose key advocates, among others was German scholar and intellectual Wilhelm von Humboldt. It argues that it would be ethnocentric, and indeed silly to suggest that the ubuntu ethic of caring and sharing is uniquely African when some of the values which it seeks to promote can also be traced in various Eurasian philosophies.     

In Defence of Ockhamism

Ockhamism implies that future contingents may be true, their historical contingency notwithstanding. It is thus opposed to both the Peircean view according to which all future contingents are false, and Supervaluationist Indeterminism according to which all future contingents are neither true nor false. The paper seeks to defend Ockhamism against two charges: the charge that it cannot meet the requirement that truths be grounded in reality, and the charge that it proves incompatible with objective indeterminism about the future. In each case, the defence draws on the idea that certain truths are truths only courtesy of others and of what makes the latter true. After introduction of the Ockhamist view, its competitors and implications, a suitable definition of grounded truth is being devised that both is faithful to the spirit of the grounding-requirement and allows the Ockhamist to heed that requirement quite comfortably. Then two senses in which the future might be open are being introduced, indeterminacy as failure of predetermination by past and present facts, and indeterminacy as failure of entailment by past and present truths. It is argued that while openness in the former sense, but not in the latter sense, coheres with the Ockhamist view, it is only openness in the former sense that matters for objective indeterminism.     

Recent Debates Over Structural Realism

Summary  In recent years Structural Realism has been revived as a compromise candidate to resolve the long-standing question of scientific realism. Recent debate over structural realism originates with Worrall’s (1989) paper “Structural Realism: The best of Both Worlds”. However, critics such as Psillos contend that structural realism incorporates an untenable distinction between structure and nature, and is therefore unworkable. In this paper I consider three versions of structural realism that purport to avoid such criticism. The first is Chakravartty’s “semirealism” which proceeds by trying to show that structural realism and entity realism entail one another. I demonstrate that this position will not work, but follow Chakravartty’s contention that structural realism need not imply that scientific knowledge can only be of mathematical structure. I advance from this conclusion to sketch a version of structural realism that is consistent with recent deflationary approaches to the scientific realism question. Finally, I consider a third approach to structural realism Ladyman’s “metaphysical structural realism” which tries to avoid the difficulties of earlier versions by taking structure to be ontologically primary. I show that the deflationary approach to structural realism undermines the rationale behind Ladyman’s approach.     

In Defence of Metametasemantics

In the paper I defend the idea of metametasemantics against the arguments recently presented by Ori Simchen (2017). Simchen attacks the view, according to which metametasemantics incorporating all possible metasemantic accounts is necessary to protect the metasemantic theories from the notorious problem of inscrutability of reference (see Sider 2011). Simchen claims that if metametasemantics is allowed it ‘absorbs’ metasemantic theories to the extent that it diminishes their explanatory value. Furthermore, in this way Simchen sets up two main metasemantic paradigms i.e. productivism (roughly speaking: speaker’s metasemantics) and interpretationism (audience’s metasemantics) as the rival theories inevitably excluding each other. I endeavour to undermine Simchen’s point by demonstrating that his argumentation mixes up deflationary reading of the predicate ‘is true’ with its substantial reading. Consequently, I demonstrate that accepting metametasemantics does not diminish explanatory value of various metasemantic theories and thus that there is no good reason to forbid metametasemantics. I also argue that even if we ignore the above-mentioned confusion in Simchen’s reasoning, his arguments still fail when considering various problems with the notion of diminishment of explanatory value and because the analogy that his arguments are based on is fairly weak. Eventually, I conclude that metametasemantics does not pose any danger to metasemantics and that it provides a solid ground for developing a theory that benefits from both productivism and interpretationism.