A critique of popular astrology. The critical examination outlines a number of serious concerns with the theory underlying astrology.

The demarcation of pseudoscience has been one of the most important philosophical tasks since the 1960s. During the 1980s, an atmosphere of defeatism started to spread among philosophers of science, some of them claimed the failure of the demarcation project. I defend that the more auspicious approach to the problem might be through the intellectual character of epistemic agents, i.e., from the point of view of vice epistemology. Unfortunately, common lists of undesirable character features are usually based on (...) a priori reasoning, and therefore might be considered artificial or too vague. When we base our position on contemporary behavioural sciences, we can see that the epistemic character of believers in pseudoscience is for the most part determined by two related factors. Firstly, these epistemic agents show a higher level of cognitive laziness. By this I mean an inability or unwillingness to engage in reflective thinking and a reluctance to account for counterevidence. Secondly, they yield more easily to metacognitive overconfidence. This can be broadly understood as so-called “knowledge illusion”, the inability to recognize one’s own intellectual limits. The deficiency usually stems from a misunderstanding of the division of cognitive labour and of the agent’s role in epistemic society. I find the proposed epistemological approach to pseudoscience crucial. Only if we understand the descriptive aspects of the problem, can we think of normative solutions to it. (shrink)

The term pseudoscience refers to a highly heterogeneous set of practices, beliefs, and claims sharing the property of appearing to be scientific when in fact they contradict either scientific findings or the methods by which science proceeds. Classic examples of pseudoscience include astrology, parapsychology, and ufology; more recent entries are the denial of a causal link between the HIV virus and AIDS or the claim that vaccines cause autism. To distinguish between science and pseudoscience is part (...) of what the philosopher Karl Popper referred to as the demarcation problem, a project that has been dismissed by another philosopher, Larry Laudan, but that keeps gathering much interest in philosophers, scientists, educators, and policymakers. This entry provides the basics of the debate about demarcation, as well as a brief discussion of why it is of vital importance not just intellectually but for society at large. (shrink)

I take pseudoscience to be a pretence at science. Pretences are innumerable, limited only by our imagination and credulity. As Stove points out, ‘numerology is actually quite as different from astrology as astrology is from astronomy’ (Stove 1991, 187). We are sure that ‘something has gone appallingly wrong’ (Stove 1991, 180) and yet ‘thoughts…can go wrong in a multiplicity of ways, none of which anyone yet understands’ (Stove 1991, 190). Often all we can do is give a (...) careful description of a way of pretending, a motivation for pretence, a source of pretension. In this chapter I attempt the latter. We will be concerned with the relation of conviction to rational belief. I shall be suggesting that the question of whether an enquiry is a pretence at science can be, in part, a question over the role of conviction in rational belief, and that the answer is to be found in the philosophical problem of the role of values in rational belief. (shrink)

Abstract -- Most research reviews are concerned with empirical findings. This one takes astrological concepts and principles, the ideas on which astrology is based, and submits them to critical evaluation. It covers recent shifts in astrological ideas, how astrologers avoid dealing with criticism, and the problems associated with (in turn) the fundamental assumptions of astrology, the origins of astrological ideas, modern psychological astrology, astrological world views, astrological symbolism, non-falsifiability, and magical influences. To be plausible astrology needs (...) sound ideas with sound origins, and sound methods for verifying those ideas. But none of the possible origins of astrological ideas (revelation, paranormal, analogy, observation, theory) are plausible. Astrologers can explain away wrong chart interpretations by blaming the symbolism, inadvertently left out factors (such as an asteroid) method, data, the astrologer or the client. They can also dismiss the interpretation as misguided (it used to be visible events, now it is invisible inner meaning). So astrologers could never know if astrology was wrong or which of their explanatory theories could actually apply. Central ideas such as "as above so below" and "inter-connectedness" and the "whole chart" are too poorly developed to amount to anything useful. There is little agreement on many basic issues and on how to resolve differences among astrological techniques and ideas. Astrological symbolism is unsystematic and based on metaphors, analogies, verbal associations, word play, and mythology, which are developed in different ways by different astrologers with no clear way of evaluating them. The philosophies and worldviews associated with astrology are underdeveloped or poorly described. Consequently astrology does not have the resources to put its house in order. Astrology seems quite unlikely to deliver anything beyond what non-astrological factors (eg cognitive and perceptual biases) can account for. With copious quotes from leading astrologers and nearly 250 references. (shrink)

The delimitation between science and pseudoscience is part of the more general task of determining which beliefs are epistemologically justified. Standards for demarcation may vary by domain, but several basic principles are universally accepted. Karl Popper proposed falsifiability as an important criterion in distinguishing between science and pseudoscience. He argues that verification and confirmation can play no role in formulating a satisfactory criterion of demarcation. Instead, it proposes that scientific theories be distinguished from non-scientific theories by testable claims (...) that future observations might reveal to be false. DOI: 10.13140/RG.2.2.29821.61926. (shrink)

Scholarly attempts to analyze the history of science sometime suffer from an imprecise use of terms. In order to understand accurately how science has developed and from where it draws its roots, researchers should be careful to recognize that epistemic regimes change over time and acceptable forms of knowledge production are contingent upon the hegemonic discourse informing the epistemic regime of any given period. In order to understand the importance of this point, I apply the techniques of historical epistemology (...) to an analysis of the place of the study of astrology in the medieval and early modern periods alongside a discussion of the “language games” of these period as well as the role of the “archeology of knowledge” in uncovering meaning in our study of the past. In sum, I argue that the term “science” should never be used when studying approaches to knowledge formation prior to the seventeenth century. (shrink)

Finding the demarcation criterion for the identification of scientific knowledge is the most important task of normative epistemology. Pseudoscience is not a harmless leisure activity, it can pose a danger to the functioning of liberal democratic societies and the well-being of their citizens. First, there is an outline of how to define science instrumentally without slipping into the detrimental heritage of conceptual essentialism. The second part is dedicated to Popper’s falsification criterion and the objections of its opponents, which (...) eventually led to the abandonment of “naïve” falsificationism. Then I present two promising solutions to the problem, namely the ostensive definition of pseudoscience and the cognitive research of pseudoscientific thinking. In conclusion, I suggest to further extend the typology of alternatives to science to include parascience. (shrink)

According to Thagard, the behavior of practitioners of a field may also be used for demarcation between science and pseudoscience due to its social dimension in addition to the epistemic one. I defended the tendency of pseudoscientists to commit fallacies, and the number of fallacies they commit can be a secondary tool for demarcation problem and this tool is consistent with Thagardian approach. In this paper, I selected the astrology as the case and I revealed nine types of (...) logical fallacies frequently committed by astrologers while introducing their field and/or defending their claims against the scientific inquiries and refutation efforts. I also argued that recognizing these fallacies may help the audience to demarcate between the scientific and the pseudoscientific arguments. (shrink)

This paper reviews how research on the demarcation problem has developed, starting from Popper’s criterion of falsifiability and ending with recent naturalistically oriented approaches. The main differences between traditional and contemporary approaches to the problem are explicated in terms of six postulates called the traditional assumptions. It is argued that all of the assumptions can be dismissed without giving up on the demarcation problem and that doing so might benefit further discussions on pseudoscience. Four present-day research movements on evaluating (...) the boundaries of science are introduced: (1) philosophy of pseudoscience, (2) social epistemology of dissent, (3) agnotology, and (4) evaluation of expertise. Researchers working within these areas have abandoned some or all traditional assumptions. (shrink)

This article argues that pseudoscience lacks an adequate philosophical analysis. Using conspiracy theories as a case study, it is claimed that such an analysis needs to go beyond a mere epistemological approach. In the first part, it is shown that the existing philosophical literature shares the assumption that conspiracy theories are primarily deficient scientific hypotheses. This claim is contested, because such an approach can only understand what conspiracy theories fail to be, but not what they are and why people (...) tend to endorse them. To develop an alternative, the second part starts from recent sociology of science, applied to conspiracy theories, that claims that both true and false theories are in need of a symmetrical social explanation. However, this opens the path to relativism because it does not allow for a significant distinction between scientific and conspiracy theories. In the third section an alternative analysis of conspiracy theories is offered, which does not abandon this distinction. Moreover, it is claimed that the most important element of conspiracy theories is not their truth value but rather their symbolic structures of meaning. The aim of conspiracy theories, and perhaps of pseudoscience in general, is then not to know facts about the world, but rather to offer a meaningful framework within which to live. (shrink)

The book covers scientific and philosophical topics by bringing them closer to literature. Some topics are scientific explanation, the concept of cause, rational argumentation, pseudoscience, language, ethics, philosophy of mind, posthumanism, and democracy. Summary Prefazione di Severino Saccardi. Introduzione. Capitolo 1: Le scrivanie di Eddington. 1.1. Il vecchio Qfwfq (I. Calvino. Le cosmicomiche). 1.2. L’assassino invisibile (L.F. Celine, Il dottor Semmelweis). 1.3. Gli gnommeri di Ingravallo (C.E. Gadda, Quer pasticciaccio brutto de via Merulana). 1.4. I sergenti di Napoleone (L. (...) Tolstoj, Guerra e pace). 1.5. Tex e il Coyote nero (G. Bonelli, Il Coyote nero). 1.6. “Elementare Watson!” (A.C. Doyle, Il segno dei quattro). Capitolo 2. Non saranno mai delusi. 2.1. L’albero di Natale. (V. Perrin, Cambiare l’acqua ai fiori). 2.2. Il dagherrotipo di Buendia. (G.G. Marquez, Cent’anni di solitudine). 2.3. Don Ferrante e la peste. (A. Manzoni, I promessi sposi). Capitolo 3. Capitolo puffo. 3.1. L’Accademia di Lagado. (J. Swift, I viaggi di Gulliver). 3.2. Bruto è uomo d’onore. (W. Shakespeare, Giulio Cesare). 3.3. Le oche mute. (G. Orwell, 1984). Capitolo 4. “Quarantadue!” 4.1. Lo zio N’Ba N’Ga. (I. Calvino, Le cosmicomiche). 4.2. La mosca cocchiera. (J. de La Fontaine, Favole). 4.3. Il fiore del dr. Dek. (E. Salgari, Le meraviglie del Duemila). Capitolo 5. L’ultimo uomo. 5.1. La pernice accusatrice. (Cyrano de Bergerac, Gli stati e gli imperi del Sole). 5.2. Pallino in via Mjasnickaja. (M.A. Bulgakov, Cuore di cane). Capitolo 6. Scenari perturbanti. 6.1. Dissipatio. (G. Morselli, Dissipatio H.G.). 6.2. Un mammifero meccanizzato. (S. Butler, Erewhon). 6.3. Mlle Olimpia. (E.T.A. Hoffmann, Racconti notturni). Capitolo 7. La gente perbene. 7.1. La balena bianca. (H. Melville, Moby Dick). 7.2. Betsabea Everdeene. (T. Hardy, Via dalla pazza folla). 7.3. Un’idea francese. (C. McCarthy, Cavalli selvaggi). 7.4. Le montagne del Montana. (D. Delillo, Rumore bianco). (shrink)

Gatekeeping, or determining membership of your group, is crucial to science: the moniker ‘scientific’ is a stamp of epistemic quality or even authority. But gatekeeping in science is fraught with dangers. Gatekeepers must exclude bad science, science fraud and pseudoscience, while including the disagreeing viewpoints on which science thrives. This is a difficult tightrope, not least because gatekeeping is a human matter and can be influenced by biases such as groupthink. After spelling out these general tensions around gatekeeping in (...) science, we shed light on them with a case study from psychology. This concerns whether academic psychologists rightly or wrongly classify the applied-psychology framework of NLP (‘neuro-linguistic programming’) as unscientific and even pseudoscientific. This example of gatekeeping is particularly instructive because both the NLP community and the psychology community, we argue, make legitimate but also illegitimate moves. This case gives rise to several general insights about gatekeeping in science more generally. (shrink)

Pseudovědecké teorie jsou uzavřeny vůči možnosti vyvrácení, ale s konspiračními teoriemi to tak jednoduché není, protože mnohé zprávy o konspiracích jsou pravdivé. Přijetí jedné konspirační teorie nicméně může vést k přijetí jiné, která je s ní v přímém protikladu. Co nás žene do pasti konspiračního myšlení?

Science was not far from philosophy in ancient thought, but the two were one thing. I do not know whether the ancient philosophers considered themselves the issue of the relationship between them, as the modern and contemporary philosophers did. But the sure thing is that the natural sciences became independent from philosophy in the modern era, and most of the scientific departments in universities were divided into two parts: sciences, literature, and humanities. At the end of the nineteenth century and (...) what followed, there were attempts to link them. Charles Peirce wrote on the scientific method and scientific metaphysics. The Vienna Circle presented a scientific conception of the world and the logical empiricists and Popper was concerned with the problem of distinguishing science from pseudoscience. The logical empiricists provided the criterion of verifiability, and Popper proposed the falsification principle. Quine defended a natural epistemology that asserts that philosophy is part of natural science. Bunge offered his own criteria for distinguishing science in the context of scientific philosophy. In this article, I want to refute the claim that philosophy has died and that science does not need it. I proved that the notion that philosophy is useless to science is not only wrong but also harmful to society, education, and science itself. This comes in a broader context, which is the moderate scientific tendency that I have defended in some of my writings. -/- لم يكن العلم بعيدًا عن الفلسفة في الفكر القديم، بل كان الاثنان شيئًا واحدًا. ولست أدرى أكان الفلاسفة القدماء يلقون على أنفسهم مسألة العلاقة بينهما مثل ما ألقاها الفلاسفة المحدثون والمعاصرون أم لا. ولكن الشيء المحقق أن العلوم الطبيعية استقلت عن الفلسفة في العصر الحديث، وانقسمت معظم الأقسام العلمية في الجامعات إلى قسمين: العلوم، والآداب والإنسانيات. وظهرت في أواخر القرن التاسع عشر وما تلاه محاولات لربطهما. كتب تشارلز بيرس عن المنهج العلمي والميتافيزيقا العلمية. وقدمت جماعة فيينا تصورًا علميًّا للعالم، واهتم التجريبيون المنطقيون وبوبر بمشكلة تمييز العلم من العلم الزائف؛ قدم التجريبيون المنطقيون معيار القابلية للتحقق، واقترح بوبر مبدأ التكذيب. ودافع كواين عن إبستمولوجيا طبيعية تؤكد أن الفلسفة جزء من العلم الطبيعي. وقدم بونجي معاييره الخاصة لتمييز العلم في سياق الفلسفة العلمية. (shrink)

Stephen Hawking claims: Philosophy is dead! Natural scientists use terms like 'natural law', 'matter', 'nature' and 'theories'. Often these terms are taken for granted without reflection. The task of philosophy of science as a metatheory of science is to clarify these terms. In doing so, philosophy of science is confronted with epistemological, ontological and metaphysical questions. But it also deals with questions such as "How do we define the boundaries between different scientific disciplines?" or "How do we distinguish science from (...) pseudoscience?". In addition, philosophy of science deals with ethical problems of modern technology, with methodological issues, with reconstructing the structure and development of scientific theories, and with exposing ideological paternalism of science. The optimistic conclusion is: Philosophy is not dead - but philosophers must discuss with scientists on an equal footing. (shrink)

In this article I give a unified account of three phenomena: bullshit, pseudoscience and pseudophilosophy. My aims are partly conceptual, partly evaluative. Drawing on Harry Frankfurt's seminal analysis of bullshit, I give an account of the three phenomena and of how they are related, and I use this account to explain what is bad about all three. More specifically, I argue that what is defective about pseudoscience and pseudophilosophy is precisely that they are special cases of bullshit. Apart (...) from raising interesting philosophical issues, gaining a clearer understanding of these phenomena is also of practical importance, in that it bears on how best to tackle the threat that they pose. (shrink)

Some philosophers assert that astrology is a false theory. The simplest way to argue against all astrology is to identify a proposition that any kind of astrology must be committed to and then show that this proposition is false. In this paper I draw attention to some misconceptions about which propositions are essential to astrology.

Historically, secular humanism has been in conflict with religious thought in the academic and social spheres. This article supports the thesis that in modern times pseu-dosciences and pseudoscientific thinking are a threat to the humanist project, comparable to religious fundamen-talism. To prove it, the concept of Secular Humanism and how it is threatened by religious fundamentalism is explai-ned. This is followed by the definition of what pseudos-ciences are and what pseudoscientific thinking is. Subse-quently, the way how pseudosciences threaten the secular (...) humanist project is described. The conclusion states that pseudoscientific thought and religious fundamentalism are equally dangerous for social coexistence. (shrink)

La délimitation entre science et pseudoscience fait partie de la tâche plus générale qui consiste à déterminer quelles croyances sont épistémologiquement justifiées. Karl Popper a proposé la falsifiabilité comme critère important de distinction entre science et pseudoscience. Il soutient que la vérification et la confirmation ne peuvent jouer aucun rôle dans la formulation d'un critère de délimitation satisfaisant. Au lieu de cela, il propose que les théories scientifiques soient distinguées des théories non-scientifiques par des affirmations vérifiables que les (...) observations futures pourraient se révéler fausses. DOI: 10.13140/RG.2.2.24472.14084. (shrink)

I insightfully discuss the question: what is pseudoscience?

Astrology research has been using artificial intelligence (AI) to improve the understanding of astrological properties and processes. Like the large language models of AI, astrology is also a language model with a similar underlying linguistic structure but with a distinctive layer of lifestyle contexts. Recent research in semantic proximities and planetary dominance models have helped to quantify effective astrological information. As AI learning and intelligence grows, a major concern is with maintaining its alignment with human values and intentions. (...) Astrology has an extensive background and theory on how different values and expressions of intelligence are resolved. As AI learns to interact with improved astrological models backed by evidence, the integration could produce a stable and insightful alignment of the two disciplines. (shrink)

What makes beliefs thrive? In this paper, we model the dissemination of bona fide science versus pseudoscience, making use of Dan Sperber's epidemiological model of representations. Drawing on cognitive research on the roots of irrational beliefs and the institutional arrangement of science, we explain the dissemination of beliefs in terms of their salience to human cognition and their ability to adapt to specific cultural ecologies. By contrasting the cultural development of science and pseudoscience along a number of dimensions, (...) we gain a better understanding of their underlying epistemic differences. Pseudoscience can achieve widespread acceptance by tapping into evolved cognitive mechanisms, thus sacrificing intellectual integrity for intuitive appeal. Science, by contrast, defies those deeply held intuitions precisely because it is institutionally arranged to track objective patterns in the world, and the world does not care much about our intuitions. In light of these differences, we discuss the degree of openness or resilience to conceptual change (evidence and reason), and the divergent ways in which science and pseudoscience can achieve cultural “success”. (shrink)

What is wrong with ad hoc hypotheses? Ever since Popper’s falsificationist account of adhocness, there has been a lively philosophical discussion about what constitutes adhocness in scientific explanation, and what, if anything, distinguishes legitimate auxiliary hypotheses from illicit ad hoc ones. This paper draws upon distinct examples from pseudoscience to provide us with a clearer view as to what is troubling about ad hoc hypotheses. In contrast with other philosophical proposals, our approach retains the colloquial, derogative meaning of adhocness, (...) and calls attention to the way in which the context of a theoretical move bears on the charge of adhocness. We also discuss the role of motivations implicit in the concept of adhocness, and the way ad hoc moves draw on theory-internal rationalizations. (shrink)

Après un examen des emplois antérieurs du terme « pseudotechnologie », une définition est proposée : « Une pseudotechnologie est une technologie présumée, irrémédiablement dysfonctionnelle pour l’usage auquel elle est destinée, puisqu’elle est basée sur des principes de construction qui ne peuvent pas être mis en œuvre ». La relation entre la pseudotechnologie et la pseudoscience est examinée, tout comme la relation entre la pseudotechnologie et le concept beaucoup plus faible de malfonction technologique. Une explication est proposée de la (...) raison pour laquelle la pseudotechnologie est beaucoup plus rarement mentionnée que la pseudoscience : le dysfonctionnement d’une technologie se manifeste généralement au moment de son utilisation, tandis que le dysfonctionnement d’une science est généralement plus difficile à établir. (shrink)

The concept of burden of proof is used in a wide range of discourses, from philosophy to law, science, skepticism, and even in everyday reasoning. This paper provides an analysis of the proper deployment of burden of proof, focusing in particular on skeptical discussions of pseudoscience and the paranormal, where burden of proof assignments are most poignant and relatively clear-cut. We argue that burden of proof is often misapplied or used as a mere rhetorical gambit, with little appreciation of (...) the underlying principles. The paper elaborates on an important distinction between evidential and prudential varieties of burdens of proof, which is cashed out in terms of Bayesian probabilities and error management theory. Finally, we explore the relationship between burden of proof and several (alleged) informal logical fallacies. This allows us to get a firmer grip on the concept and its applications in different domains, and also to clear up some confusions with regard to when exactly some fallacies (ad hominem, ad ignorantiam, and petitio principii) may or may not occur. (shrink)

Two of the staunchest critics of astrology presented their case in an article published in this journal that has since become a standard reference. The authors argue that the astrological experience is more likely to work by 'hidden persuaders' than by either objective or psychic criteria, yet their argument provides no evidence of this. The authors demand careful testing yet their own examples and claims against astrology are not careful. The metaanalysis claim mixes studies with widely disparate data (...) types. The parental tampering argument against Michel Gauquelin's planetary eminence findings lacks supportive evidence. The 'definitive' time twins test fails to define the criteria of resemblance. The test of predicting psychological test profiles does not discriminate between permanent personality dimensions and psychological states as astrology requires. The blind chart matching studies evaluated skills on the wrong parties where they would not be expected by either astrology or psychology. The authors fail to mention the most interesting and promising peer-reviewed astrological research studies that were available to them. Improved discourse with astrological subject matter experts is recommended. (shrink)

Hostile epistemology is the study of how environmental features exploit our cognitive vulnerabilities. I am particularly interested in those vulnerabilities arise from the basic character of our epistemic lives. We are finite beings with limited cognitive resources, perpetually forced to reasoning a rush. I focus on two sources of unavoidable vulnerability. First, we need to use cognitive shortcuts and heuristics to manage our limited time and attention. But hostile forces can always game the gap between the heuristic and the (...) ideal. Second, we need to trust others, and trust makes us vulnerable. In particular, we need to trust experts whose expertise lies beyond our individual ability to vet. So we must rely on various imperfect signals and proxies, like institutional affiliation, to manage our trust. We are forced to use these imperfect and exploitable forms of reasoning, in order to cope with a cognitively overwhelming world. I present the hostile epistemology framework as a counterbalance to vice epistemology, which tends to locate responsibility for bad beliefs in the character of the believer. I draw two conclusions from my analysis. First: suppose we accept that that only communities and institutions can know about the world. This deeply social approach doesn’t solve the problem of expert identification. The individual still faces a problem: given their incomplete understanding, how should the individual pick which group to trust? Second: we might have hoped to get some kind of static picture of the right principles of reasoning — but hostile epistemology presents a different picture. We have to use risky heuristics and shortcuts, which hostile forces can game and exploit. We can respond by shifting to a different set of heuristics, but this simply shifts the location of our vulnerabilities. These new heuristics are also exploitable. There is no end to this, only a constant struggle to adapt. Limited beings in a hostile epistemic environment are locked in an unending epistemic arms race. (shrink)

In the first half of the paper, it is argued that while the prospects for a criterion for demarcating scientific theories from pseudoscientific ones are exceedingly dim, it is a mistake to fall back to the position that these differ only with regard to how well they are confirmed. One may admit that different pseudoscientific theories are flawed in different ways yet still insist that their flaws are structural rather than empirical in character. In the second half of the paper, (...) this view is extended to cover the cases of pseudoscientific correlations and therapies, and it is suggested that the pseudosciences are best thought of as radically flawed practices. (shrink)

Orthodox epistemological disjunctivism involves the idea that paradigm cases of visual perceptual knowledge are based on visual perceptual states which are propositional, and hence representational. Given this, the orthodox version of epistemological disjunctivism takes on controversial representational commitments in the philosophy of perception. Must epistemological disjunctivism involve these commitments? I don’t think so. Here I argue that we can take epistemological disjunctivism in a new direction and develop a version of the view free of these representational commitments. The basic idea (...) is that instead of conceiving of knowledge grounding perceptions as states in which one sees that such-and-such is the case, we should instead conceive of them as states or episodes in which one sees a thing, we should conceive of them as thing-seeings. I’ll suggest that we can cast such seeings in a knowledge grounding role without conceiving of them as representational. But this is because we can put thing-seeings to epistemological work, in the framework of epistemological disjunctivism, whilst remaining neutral on whether or not they are propositional, or representational at all. The point, then, is not to replace epistemological disjunctivism’s controversial representational commitments with controversial non-representational commitments. The point is, rather, that epistemological disjunctivism can be developed with fewer commitments in the philosophy of perception than is usually appreciated. (shrink)

As it has been shaped by improvements in its tools and methods, and by its discourse with critics, I describe how the astrological research program has advanced through three stages of modelling and design limitations. Single-factor tests (for example, the many Sun-sign–only experiments that have been published) are typically underdeterministic. Multi-factor tests, unless they are very well designed, can easily become overdeterministic. Chart-matching tests have been vulnerable to confirmation bias errors until the development of a machine-based, whole-chart matching protocol that (...) has objectively produced evidence of high effect-sizes. A meta-analysis of recent results shows the rapid advancement and how to further improve the results. The value of the program is not only to corroborate the taxonomic counterfactuals of astrological “cookbooks,” but to extend their explanatory reach by the comparison of astrological postulates and inferences with philosophies in other disciplines in terms of quantifiable processes and emergent effects. (shrink)

In common with traditional forms of epistemic internalism, epistemological disjunctivism attempts to incorporate an awareness condition on justification. Unlike traditional forms of internalism, however, epistemological disjunctivism rejects the so-called New Evil Genius thesis. In so far as epistemological disjunctivism rejects the New Evil Genius thesis, it is revisionary. -/- After explaining what epistemological disjunctivism is, and how it relates to traditional forms of epistemic internalism / externalism, I shall argue that the epistemological disjunctivist’s account of the intuitions underlying the New (...) Evil Genius thought experiment is at best incomplete. As presented, therefore, epistemological disjunctivism is unable to accommodate the core guiding intuitions of epistemic internalism. Given the stated aim of not being revisionary on this score, the view is at a dialectical disadvantage over the traditional forms of epistemic internalism the position is meant to replace. Unfortunately, therefore, at present, the impasse between internalism and externalism remains. (shrink)

The epistemology of essence is a topic that has received relatively little attention, although there are signs that this is changing. The lack of literature engaging directly with the topic is probably partly due to the mystery surrounding the notion of essence itself, and partly due to the sheer difficulty of developing a plausible epistemology. The need for such an account is clear especially for those, like E.J. Lowe, who are committed to a broadly Aristotelian conception of essence, (...) whereby essence plays an important theoretical role. In this chapter, our epistemic access to essence is examined in terms of the a posteriori vs. a priori distinction. The two main accounts to be contrasted are those of David S. Oderberg and E.J. Lowe. (shrink)

An overview of the epistemology of perception, covering the nature of justification, immediate justification, the relationship between the metaphysics of perceptual experience and its rational role, the rational role of attention, and cognitive penetrability. The published version will contain a smaller bibliography, due to space constraints in the volume.

An old philosophical problem of delineating science from pseudoscience has in today’s world far superseded the task of unearthing sufficient and necessary conditions which science should be able to satisfy and on which pseudoscience would fall short. Our interests have shifted from the search for the rigorous criteria of demarcation, to describing various scientific and pseudoscientific activities – as well as bringing the psychological backgrounds of beliefs in numerous pseudoscientific theories to light. We aim to pinpoint some of (...) the key characteristics of said activities and the strategies they employ. Also, we attempt to answer the question of why are individuals prone to believing various conspiracy theories, alternative historical explanations and other pseudoscientific theories. (shrink)

The paper argues against Peacocke's moderate rationalism in modality. In the first part, I show, by identifying an argumentative gap in its epistemology, that Peacocke's account has not met the Integration Challenge. I then argue that we should modify the account's metaphysics of modal concepts in order to avoid implausible consequences with regards to their possession conditions. This modification generates no extra explanatory gap. Yet, once the minimal modification that avoids those implausible consequences is made, the resulting account cannot (...) support Peacocke's moderate rationalism. (shrink)

Quine's “Epistemology Naturalized” has become part of the canon in epistemology and excited a widespread revival of interest in naturalism. Yet the status accorded the essay is ironic, since both friends and foes of philosophical naturalism deny that Quine makes a plausible case that the methods of naturalism can accommodate the problems of epistemology.

Religious epistemology is the study of how subjects' religious beliefs can have, or fail to have, some form of positive epistemic status and whether they even need such status appropriate to their kind. The current debate is focused most centrally upon the kind of basis upon which a religious believer can be rationally justified in holding certain beliefs about God and whether it is necessary to be so justified to believe as a religious believer ought. Engaging these issues are (...) primarily three groups of people who call themselves ‘fideists’, ‘Reformed epistemologists’, and ‘evidentialists’. Each group has a position, but the positions are not mutually exclusive in every case, and in the debate, the names better describe the groups' emphases than mutually exclusive positions in the debate. In this article, we will first give a brief historical survey of evidentialism, fideism, and reformed epistemology. Second, we will give the fideist's position. Third, we will give the evidentialist's position. Fourth, we will give the reformed epistemologist's position, and last, we will include some comments on the current state of the debate, where we will show that the groups' positions are not mutually exclusive. (shrink)

Robust virtue epistemology holds that knowledge is true belief obtained through cognitive ability. In this essay I explain that robust virtue epistemology faces a dilemma, and the viability of the theory depends on an adequate understanding of the ‘through’ relation. Greco interprets this ‘through’ relation as one of causal explanation; the success is through the agent’s abilities iff the abilities play a sufficiently salient role in a causal explanation of why she possesses a true belief. In this paper (...) I argue that Greco’s account of the ‘through’ relation is inadequate. I describe kinds of counterexample and explain why salience is the wrong kind of property to track epistemically relevant conditions or to capture the nature of knowledge. Advocates of robust virtue epistemology should develop an alternative account of the ‘through’ relation. I also argue that virtue epistemology should employ an environment-relative interpretation of epistemic virtue. (shrink)

Standard epistemology takes it for granted that there is a special kind of value: epistemic value. This claim does not seem to sit well with act utilitarianism, however, since it holds that only welfare is of real value. I first develop a particularly utilitarian sense of “epistemic value”, according to which it is closely analogous to the nature of financial value. I then demonstrate the promise this approach has for two current puzzles in the intersection of epistemology and (...) value theory: first, the problem of why knowledge is better than mere true belief, and second, the relation between epistemic justification and responsibility. (shrink)

In this paper I explore Phyllis Rooney’s 2003 chapter, “Feminist Epistemology and Naturalized Epistemology: An Uneasy Alliance,” taking guidance from her critique of naturalized epistemology in pursuing my own analysis of another uneasy alliance: that between feminist epistemology and social epistemology. Investigating some of the background assumptions at work in prominent conceptions of social epistemology, I consider recent analyses of "epistemic bubbles" to ask how closely such analyses are aligned with ongoing research in feminist (...) epistemology. I argue that critical feminist insights in political philosophy are called for here, especially those that focus on multiple politically salient relationships and also emphasize practices of personal transformation as inseparably bound up with broader movements for social transformation. Insofar as feminist epistemology continues to carry another world in its heart, I argue that it will continue to rest uneasily with any effort to align it with—let alone subsume it within—the still emerging field of social epistemology. (shrink)

The article I wrote on the astrology research program (2022) has drawn criticism from G. Dean and I. Kelly (2023) that scarcely touches on my topics of effect sizes in single-factor, multi-factor, and automated whole-chart experimentation. They ignore the meta-analysis of current research and my explanation of emergent effects. Instead they try to impugn all of astrology by arguments that date from the time of Cicero and Augustine.

What is the relationship between inquiry and epistemology? Are epistemic norms the norms that guide us as inquirers—as agents in the pursuit of knowledge and understanding? Recently, there has been growing support for what I, following Friedman (Philosophical Review 129(4):501–536, 2020), will call the zetetic turn in epistemology, the view that all epistemic norms are norms of inquiry. This paper investigates the prospects of an inquiry-centered approach to epistemology and develops several motivations for resisting it. First, I (...) argue that the norms of inquiry are most plausibly seen as practical, not as distinctively epistemic. Second, I argue that a zetetically-grounded epistemology is unable to properly account for the rationality of belief. It fails to account for cases where intuitively irrational beliefs promote inquiry, or where intuitively rational beliefs are zetetically useless or counterproductive to inquiry. The main upshot is this: there must be a source of epistemic normativity that isn’t ultimately zetetic. (shrink)

This article surveys recent developments in the epistemology of modality.

Introduction: In the past, psychoanalysis was classified as a pseudoscience. Karl Popper was one of those who objected to the idea that psychoanalysis is a science, using falsifiability. However, falsifiability cannot be considered sufficient anymore, since it carries major weaknesses and better alternatives to address the issue are available. Objective: This article intends to evaluate the scientific status of psychoanalysis concerning the demarcation problem. Method: In order to do so, Sven Ove Hansson’s criteria were used. His proposal consists of (...) a set of sufficient and necessary conditions which is complemented by a multicriteria list that helps identifying pseudosciences. It was analyzed how much psychoanalysis fits each of Hansson's seven items, besides proposing the addition of an eighth. Results: The results showed that psychoanalysis was compatible with all eight demarcation of pseudoscience’s items. Conclusion: In the end, the conclusion was that even if falsifiability was to be dismissed, the evidence suggests that there are still enough reasons to affirm that psychoanalysis is a pseudoscience, since it significantly deviates from scientific quality standards. (shrink)

A common epistemological assumption in contemporary bioethics held b y both proponents and critics of non-traditional forms of cognitive enhancement is that cognitive enhancement aims at the facilitation of the accumulation of human knowledge. This paper does three central things. First, drawing from recent work in epistemology, a rival account of cognitive enhancement, framed in terms of the notion of cognitive achievement rather than knowledge, is proposed. Second, we outline and respond to an axiological objection to our proposal that (...) draws from recent work by Leon Kass (2004), Michael Sandel (2009), and John Harris (2011) to the effect that ‘enhanced’ cognitive achievements are (by effectively removing obstacles to success) not worthy of pursuit, or are otherwise ‘trivial’. Third, we show how the cognitive achievement account of cognitive enhancement proposed here fits snugly with recent active externalist approaches (e.g., extended cognition) in the philosophy of mind and cognitive science. (shrink)

It is now common to distinguish Metaphysical from Epistemological Disjunctivism. It is equally common to suggest that it is at least not obvious that the latter requires a commitment to the former: at the very least, a suitable bridge principle will need to be identified which takes one from the latter to the former. This paper identifies a plausible-looking bridge principle that takes one from the version of Epistemological Disjunctivism defended by John McDowell and Duncan Pritchard, which I label Reflective (...) Epistemological Disjunctivism, or (RED), to Metaphysical Disjunctivism. Moreover, it identifies a modification the proponent of (RED) could, and should, make to the Internalist component of their theory, and argues that the commitment to Metaphysical Disjunctivism remains, even if such a modification is made. The upshot is that the commitment to Metaphysical Disjunctivism on the part of (RED) is shown to be particularly robust. (shrink)