The authors discuss some of the conceptual issues that must be considered in using and understanding psychiatric classification. DSM-IV is a practical and common sense nosology of psychiatric disorders that is intended to improve communication in clinical practice and in research studies. DSM-IV has no philosophic pretensions but does raise many philosphical questions. This paper describes the development of DSM-IV and the way in which it addresses a number of philosophic issues: nominalism vs. realism, epistemology in science, the mind/body dichotomy, (...) the definition of mental disorders, and dimensional vs. categorical classification. (shrink)

Conspiracy theories and conspiracy theorists have been accused of a great many sins, but are the conspiracy theories conspiracy theorists believe epistemically problematic? Well, according to some recent work, yes, they are. Yet a number of other philosophers like Brian L. Keeley, Charles Pigden, Kurtis Hagen, Lee Basham, and the like have argued ‘No!’ I will argue that there are features of certain conspiracy theories which license suspicion of such theories. I will also argue that these features only license a (...) limited suspicion of these conspiracy theories, and thus we need to be careful about generalising from such suspicions to a view of the warrant of conspiracy theories more generally. To understand why, we need to get to the bottom of what exactly makes us suspicious of certain conspiracy theories, and how being suspicious of a conspiracy theory does not always tell us anything about how likely the theory in question is to be false. (shrink)

A remarkable feature of the philosophical work on conspiracy theory theory has been that most philosophers agree there is nothing inherently problematic about conspiracy theories (AKA the thesis of particularism). Recent work, however, has challenged this consensus view, arguing that there really is something epistemically wrong with conspiracy theorising (AKA generalism). Are particularism and generalism incompatible? By looking at just how much particularists and generalists might have to give away to make their theoretical viewpoints compatible, I will argue that particularists (...) can accept many of the concerns that motivate generalism because generalism can never be about ‘all’ conspiracy theories without being either ahistorical or apolitical. In the end generalist critiques are best seen as useful guidelines or considerations for the appraising of particular conspiracy theories. (shrink)

This volume offers the first-ever complete English translation of Leibniz’s Dissertatio De Arte Combinatoria together with a critical edition of the original Latin text on fa...

Central to the particularist project, one that has become the consensus in the philosophy of conspiracy theory theory, is the claim that a general dismissal of these things called `conspiracy theories' is unsustainable. That is, if we want to say a conspiracy theory is suspicious such that we should not believe it, then we have to engage in at least some investigation of it. Particularists have detailed just why a general attitude of skepticism towards conspiracy theories is implausible; they have, (...) in effect, created the case against generalism. The case for particularism, then, has largely been about challenging and rebutting generalist arguments. But what of the bigger picture? If particularists argue that we should not assume conspiracy theories are mad, bad, or dangerous but, rather, investigate them, then how should we go about that investigation? In this paper I describe (some) of the preliminary concerns the particularist (and the generalist) needs to account for when developing an ethics of investigation into these things called `conspiracy theories.' Whilst this paper does not provide a framework for the investigation of conspiracy theories, it provides the framework for such a framework. (shrink)

Looking at the early work in the philosophy of conspiracy theory theory, I put in context the papers in this special issue on new work on conspiracy theory theory (itself the product of the 1st International Conference on the Philosophy of Conspiracy Theory held in February 2022), showing how this new generation of work not only grew out of, but is itself a novel extension of the first generation of philosophical interest in these things called ‘conspiracy theories’.

This reply to an ongoing debate between conspiracy theory researchers from different disciplines exposes the conceptual confusions that underlie some of the disagreements in conspiracy theory research. Reconciling these conceptual confusions is important because conspiracy theories are a multidisciplinary topic and a profound understanding of them requires integrative insights from different fields. Specifically, we distinguish research focussing on conspiracy *theories* (and theorizing) from research of conspiracy *belief* (and mindset, theorists) and explain how particularism with regards to conspiracy theories does not (...) mean we cannot define a problematic subclass of conspiracy beliefs, while avoiding the problems of generalism. We hope this reply helps conspiracy theory researchers recognize the differences between studying conspiracy theories and conspiracy beliefs and appreciate the possibilities for fruitful, integrative, and interdisciplinary research. (shrink)

Johann Friedrich Ludwig Schröder (1774-1845 ) was born in Germany but moved to Holland at the age of 13. After studying at Halle he joined the Kantian movement in Amsterdam as an active member, cooperating with Paulus van Hemert and contributing articles to his Kantian magazine. During his professional career as a marine instructor (1803-11 ), however, he became increasingly critical of Kantianism. As professor of mathematics, physics and philosophy at the University of Utrecht (1816-44) he traded in his former (...) Kantianism for a variant of the common sense philosophy then in favour in the Netherlands. He now regarded Kantianism as a form of scepticism. Accordingly, in his major work, the Contnbution to a Critique of the Truth of Human Knowledge, he propounds an anti-sceptical doctrine of such ‘basic truths’ as are founded on the immediate relevation of our consciousness. Schröder also attempts to reduce the Kantian doctrine of the noumenon to an inconsistent set of propositions, by showing them to be antinomies in the Kantian sense of the term, even using Kant's own dialectical method in proving their contradictoriness ; these contradictory propositions he calls the 'antinomies of the Kantian philosophy'. In a minor work, The Sign Relation as the Basis of Human Knowledge (translated freely), we find reminiscences of Thomas Reid's Inquiry into the Human Mind: of the doctrine of sensations suggesting our conceptions of things, of causes being the signs of their effects, of 'the natural language of mankind'. Schröder, in developing these ideas in his own way, presents the sign relation as being fundamental to the construction of our knowledge of both nature and the human soul. Only by taking one thing as the ‘sign’ (signal, symbol, symptom, index, expression, picture, representation etc.) of another can we attain a conception of the world as a coherent whole. Our perception of this relation is partly a matter of innate capacities, partly the result of acquired skill. (shrink)

Since the middle of this century, the dominant prescriptive approach to decision theory has been a deductive viewpoint which is concerned with axioms of rational preference and their consequences. After summarizing important problems with the preference primitive, this paper argues for a constructive approach in which information is the foundation for decision-making. This approach poses comparability of uncertain acts as a question rather than an assumption. It is argued that, in general, neither preference nor subjective probability can be assumed given, (...) and that these need to be generated by using the relevant information available to the decision-agent in a given situation. A specific constructive model is discussed and illustrated with a real example from this viewpoint. (shrink)

In this paper I interrogate the notion of `debunking conspiracy theories’, arguing that the term `debunk’ carries with it pejorative implications, given that the verb `to debunk’ is commonly understood as `to show the wrongness of a thing or concept’. As such, the notion of `debunking conspiracy theories’ builds in the notion that such theories are not just wrong but ought to be shown as being wrong. I argue that we should avoid the term `debunk’ and focus on investigating conspiracy (...) theories. Looking at recent research work in epistemology on conspiracy theory, I argue that the best way to avoid talk of `debunking’ conspiracy theories is by working with a non-pejorative definition of `conspiracy theory’, and forming communities of inquiry which allow us to investigate the warrant of such theories without the prejudice associated with working with a pejorative definition. (shrink)

I’m to push back on Hill’s (2022) criticism in four ways. First: we need some context for the debate that occurred in the pages of the Social Epistemology Review and Reply Collective that so concerns Hill. Second: getting precise with our terminology (and not working with stereotypes) is the only theoretically fruitful way to approach the problem of conspiracy theories. Third: I address Hill’s claim there is no evidence George W. Bush or Tony Blair accused their critics, during the build-up (...) the invasion of Iraq in 2003ACE, as being “conspiracy theorists.” Fourth (and finally): I will gently suggest that Hill has succumbed to a stereotypical view of work in Philosophy on conspiracy theories. (shrink)

The primary focus on fear, its nature and role, for a new philosophy for the 21st century, has been dubbed "philosophy of fearism" by Desh Subba and complemented by R. Michael Fisher in recent years. While still in its infancy as a social and pragmatic philosophy to counter the increasing danger of an Extreme Fear Age.... This paper looks at the evidence for this challenge and speculated what to expect in the near future. Dr. Noam Chomsky's work on fear and (...) terror is brought to the foreground of a fearanalysis.... (shrink)

Polyhedral functions provide a model for an important class of problems that includes both linear programming and applications in data analysis. General methods for minimizing such functions using the polyhedral geometry explicitly are developed. Such methods approach a minimum by moving from extreme point to extreme point along descending edges and are described generically as simplicial. The best-known member of this class is the simplex method of linear programming, but simplicial methods have found important applications in discrete approximation and statistics. (...) The general approach considered in this text, first published in 2001, has permitted the development of finite algorithms for the rank regression problem. The key ideas are those of developing a general format for specifying the polyhedral function and the application of this to derive multiplier conditions to characterize optimality. Also considered is the application of the general approach to the development of active set algorithms for polyhedral function constrained problems and associated Lagrangian forms. (shrink)