A crisis looms over the scientific enterprise. Not a day passes without news of retractions, failed replications, fraudulent peer reviews, or misinformed science-based policies. The social implications are enormous, yet this crisis has remained largely uncharted-until now. In Science on the Verge, luminaries in the field of post-normal science and scientific governance focus attention on worrying fault-lines in the use of science for policymaking, and the dramatic crisis within science itself. This provocative new volume in The Rightful Place of Science (...) also explores the concepts that need to be unlearned, and the skills that must be relearned and enhanced, if we are to restore the legitimacy and integrity of science. (shrink)

Progressive supranuclear palsy is a movement disorder with prominent tau neuropathology. Brain diseases with abnormal tau deposits are called tauopathies, the most common of which is Alzheimer's disease. Environmental causes of tauopathies include repetitive head trauma associated with some sports. To identify common genetic variation contributing to risk for tauopathies, we carried out a genome-wide association study of 1,114 individuals with PSP and 3,247 controls followed by a second stage in which we genotyped 1,051 cases and 3,560 controls for the (...) stage 1 SNPs that yielded P ≤ 10-3. We found significant previously unidentified signals associated with PSP risk at STX6, EIF2AK3 and MOBP. We confirmed two independent variants in MAPT affecting risk for PSP, one of which influences MAPT brain expression. The genes implicated encode proteins for vesicle-membrane fusion at the Golgi-endosomal interface, for the endoplasmic reticulum unfolded protein response and for a myelin structural component. © 2011 Nature America, Inc. All rights reserved. (shrink)

William Whewell’s 19th century philosophy of science is sometimes glossed over as a footnote to Kant. There is however a key feature of Whewell’s account worth noting. This is his appeal to Aristotle’s form/matter hylomorphism as a metaphor to explain how mind and world merge in successful scientific inquiry. Whewell’s hylomorphism suggests a middle way between rationalism and empiricism reminiscent of experience pragmatists like Steven Levine’s view that mind and world are entwined in experience. I argue however that Levine does (...) not adequately explain exactly how mind and world entwine. He could nonetheless do so if he appealed to Whewell’s hylomorphic metaphor. We may prefer a reductive metaphysical explanation, but I suggest that pragmatists only have recourse to metaphor in this case. Both reductive and metaphorical explanations can enjoy great explanatory power if they exhibit a suitable measure of what I will call sematic distance. Semantic distance measures how close or how far apart explanandum and explanans are from each other in meaning. Metaphorical explanation - as evident in Whewell’s hylomorphism and as detailed via the notion of semantic distance - presents a valuable new explanatory tool to those who hold that mind and world are entwined sans recourse to metaphysics. (shrink)

Inspired by Bas van Fraassen’s Stance Empiricism, Anjan Chakravartty has developed a pluralistic account of what he calls epistemic stances towards scientific ontology. In this paper, I examine whether Chakravartty’s stance pluralism can exclude epistemic stances that licence pseudo-scientific practices like those found in Scientology. I argue that it cannot. Chakravartty’s stance pluralism is therefore prone to a form of debilitating relativism. I consequently argue that we need (1) some ground or constraint in relation to which epistemic stances can be (...) ranked by degrees, and (2) some way to demarcate science from pseudo-science so that we know what epistemic stances are about. Regarding (1), I argue that empirical detectability can serve as the ground in relation to which epistemic stances are ranked by degrees. Regarding (2), I argue for ranking sciences on a continuum according to established institutional criteria, rather than attempting to draw a strict demarcation. (shrink)

I identify two versions of the scientific anti-realist’s selectionist explanation for the success of science: Bas van Fraassen’s original and K. Brad Wray’s newer interpretation. In Wray’s version, psycho-social factors internal to the scientific community – viz. scientists’ interests, goals, and preferences – explain the theory-selection practices that explain theory-success. I argue that, if Wray’s version were correct, then science should resemble art. In art, the artwork-selection practices that explain artwork-success appear faddish. They are prone to radical change over time. (...) Theory-selection practices that explain theory-success in science are however not faddish. They are mostly stable; that is, long-lived and consistent over time. This is because scientists (explicitly or implicitly) subscribe to what I will call the testability norm: scientific theories must make falsifiable claims about the external physical world. The testability norm and not psycho-sociology explains the theory-selection practices that explain theory-success in science. Contra Wray, scientific anti-realists can then maintain that the external physical world (as expressed in the testability norm) explains theory-success. (shrink)

Several complexity theorists draw a sharp and ontologically robust distinction between (merely) complicated systems and (genuinely) complex systems. I argue that this distinction does not hold. Upon fine-grained analysis, ostensibly complicated systems turn out to be complex systems. The purported boundary between the complicated and the complex appears to be vague rather than sharp. Systems are complex by degrees.

Both the concept of a Darwinian tree of life (TOL) and the possibility of its accurate reconstruction have been much criticized. Criticisms mostly revolve around the extensive occurrence of lateral gene transfer (LGT), instances of uptake of complete organisms to become organelles (with the associated subsequent gene transfer to the nucleus), as well as the implications of more subtle aspects of the biological species concept. Here we argue that none of these criticisms are sufficient to abandon the valuable TOL concept (...) and the biological realities it captures. Especially important is the need to conceptually distinguish between organismal trees and gene trees, which necessitates incorporating insights of widely occurring LGT into modern evolutionary theory. We demonstrate that all criticisms, while based on important new findings, do not invalidate the TOL. After considering the implications of these new insights, we find that the contours of evolution are best represented by a TOL. (shrink)

Paul Cilliers has developed a novel post-structural approach to complexity that has influenced several writers contributing to the current complexity literature. Concomitantly however, Cilliers advocates for modelling complex systems using connectionist neural networks (rather than analytic, rule-based models). In this paper, I argue that it is dilemmic to simultaneously hold these two positions. Cilliers’ post-structural interpretation of complexity states that models of complex systems are always contextual and provisional; there is no exclusive model of complex systems. This sentiment however appears (...) at odds with Cilliers’ promotion of connectionist neural networks as the best way to model complex systems. The lesson is that those who currently follow Cilliers’ post-structural approach to complexity cannot also develop a preferred model of complex systems, and those who currently advocate for some preferred model of complex systems cannot adopt the post-structural approach to complexity without giving up the purported objectivity and/or superiority of their preferred model. (shrink)

Prima facie, we make successful decisions as we act on and intervene in the world day-to-day. Epistemologists are often concerned with whether rationality is involved in such decision-making practices, and, if so, to what degree. Some, particularly in the post-structuralist tradition, argue that successful decision-making occurs via an existential leap into the unknown rather than via any determinant or criterion such as rationality. I call this view radical voluntarism (RV). Proponents of RV include those who subscribe to a view they (...) call Critical Complexity (CC). In this paper, I argue that CC presents a false dichotomy when it conceives of rationality in Cartesian – i.e. ideal and transcendental – terms, and then concludes that RV is the proper alternative. I then outline a pragmatist rationality informed by recent work in psychology on bounded rationality, ecological rationality, and specifically embodied rationality. Such a pragmatist rationality seems to be compatible with the tenets of post-structuralism, and can therefore replace RV in CC. (shrink)

Harry van der Linden's contribution to The Cambridge Dictionary of Philosophy. Cambridge: Cambridge University Press.

Douglas Edwards is arguably the most prominent contemporary advocate of moderate alethic pluralism. Significantly influenced by Crispin Wright and Michael Lynch, his work on the nature of truth has become widely discussed in the topical literature. Edwards labels his version of moderate alethic pluralism determination pluralism. At first blush, determination pluralism appears philosophically promising. The position deserves thoughtful consideration, particularly because of its capacity to accommodate the scope problem. I argue, however, that upon analysis the view is better understood as (...) a form of metaphysical dualism or what I will call meta-dualism. Furthermore, determination pluralists face a dilemma; there appears to be an instability at the core of their dualistic model. On the one horn of the dilemma, they need a clear metaphysical demarcation at the interface of their two necessary domains. On the other horn, they seem to need to a metaphysically vague boundary at the interface of their two necessary domains. Determination pluralism needs substantial revision. (shrink)

According to ontological nihilism nothing exists. A recent argument purports to show that this view is indefensible, since its most plausible formulations are tacitly committed to quantificational claims that are inconsistent with the nihilist's view that there aren't any existents. I show that this objection begs the question against the nihilist. The objector's argument relies on an equivalence principle implying that claims which nihilists regard as non-quantificational should nonetheless be interpreted as equivalent to quantified claims, given that both kinds of (...) assertion are assertible in the same contexts. This style of reasoning is supported by considerations of charity, which suggest that similarities in inter-personal patterns of language use provide evidence of similarity in the semantic content of speakers' utterances. However, related considerations also suggest that intra-personal patterns of language use constitute significant semantic evidence of the same kind. When we appreciate this and further recognize that nihilists are disposed to assert the negation of any positive, quantified claim, we see that it is too much to expect principles of semantic interpretation based on considerations of charity to decisively refute nihilism. This result has interesting metametaphysical implications concerning the role and scope of analogous arguments based on principles of interpretive charity. (shrink)

Epistemic pluralists in the philosophy of science often argue that different epistemic perspectives in science are equally warranted. Sandra Mitchell – with her Integrative Pluralism (IP) – has notably advocated for this kind of epistemic pluralism. A problem arises for Mitchell however because she also wants to be an epistemological pluralist. She claims that, not only are different epistemic perspectives in science equally warranted in different contexts, but different understandings of these epistemic perspectives in science are also equally warranted in (...) different contexts. The problem is that Mitchell argues that her understanding of epistemic perspectives in science (IP) is the correct one, and it is dilemmic to then claim that there is more than one such understanding. As solution, I suggest that we abandon epistemological pluralism and instead follow Feyerabend in being opportunistic pluralists. We can adopt pluralism as a short-term strategy in the pursuit of a long-term unitary goal. This unitary goal is what philosophers of understanding call objectual understanding, the kind of understanding that Integrative Pluralism tacitly aspires to anyway. (shrink)

This book chapter addresses two questions. First, can targeted killing by drones in non-battlefield zones be justified on basis of just war theory? Second, will the proliferation and expansion of combat drones in warfare, including the introduction of autonomous drones, be an obstacle to initiating or executing wars in a just manner in the future? The first question is answered by applying traditional jus ad bellum and jus in bello principles to the American targeted killing campaign in Pakistan; the second (...) question is answered on basis of principles of “just military preparedness” or jus ante bellum, a new category of just war thinking. It is concluded that an international ban on weaponized drones is morally imperative and, certainly, that an international treaty against autonomous lethal weapons should be adopted. (shrink)

The neo-Kantian Hermann Cohen famously wrote that Kant “is the true and real originator of German socialism.” This paper seeks to explicate Cohen’s socialist reconstruction of Kant’s ethics and show that this reconstruction overcomes some weaknesses of Kant’s ethics. In conclusion, the paper discusses the contemporary relevance of Cohen’s cooperative socialism.

Review of Willem Schinkel's Theorie van de Kraal, de Hamsteraar, and Pandemocratie.

A study of the philosophical and theological thought of Henry Cornelius Agrippa of Nettesheim (1486-1535). It contains new perspectives on Agrippa's place in the world of humanism and offers a new approach to the interpretation of Renaissance declamations.

Inleiding vanuit historisch perspectief tot de rechtsfilosofie.

Harry van der Linden's contribution to: American Justice, ed. Joseph M. Bessette.

Harry van der Linden's contribution to The Cambridge Dictionary of Philosophy. Cambridge: Cambridge University Press.

The neo-Kantian Hermann Cohen famously wrote that Kant “is the true and real originator of German socialism.” This paper seeks to explicate Cohen’s socialist reconstruction of Kant’s ethics and show that this reconstruction overcomes some weaknesses of Kant’s ethics. In conclusion, the paper discusses the contemporary relevance of Cohen’s cooperative socialism.

Book Review K. Brad Wray: Resisting Scientific Realism. Cambridge University Press: Cambridge 2018, xii + 224 pp, £ 75.00 (Hardcover), ISBN: 9781108231633. By Ragnar van der Merwe. In The Journal for the General Philosophy of Science.

Should the U.N. Security Council use its coercive powers to bring about effective climate change mitigation? This question remains relevant considering the inadequate mitigation goals set by the signatories of the Paris Climate Accord and the ramifications of U.S. withdrawal from the Accord. This paper argues that the option of the unsc coercing climate change mitigation through military action, or the threat thereof, is morally flawed and ultimately antithetical to effectively addressing climate change. This assessment is based significantly on the (...) application of jus ad bellum principles of just war theory, incorporating some feminist critiques of this theory. (shrink)

International law grants to legitimate combatants the right to kill enemy soldiers both in wars of aggression and defensive wars. A main argument in support of this “combatant’s privilege” is Michael Walzer’s doctrine of the “moral equality of soldiers.” The doctrine argues that soldiers fighting in wars of aggression and defensive wars have the same moral status because they both typically believe that justice is on their side, and their moral choices are equally severely restricted by the overwhelming coercive powers (...) of the state, including propaganda, conscription, and harsh penalties for the refusal to fight. Recently, this doctrine has been convincingly refuted, at least with regard to aggressor soldiers who are part of professional volunteer armies in democratic societies. However, Walzer’s critics have not challenged combatant’s privilege, primarily for a variety of pragmatic reasons. This paper examines these reasons, finds them not decisive, and articulates a modest proposal for denying, under some conditions, combatant’s privilege to aggressor soldiers, making their very participation in a war of aggression a war crime. It is concluded that unrestricted combatant’s privilege is in tension with the aim of the United Nations “to save succeeding generationsfrom the scourge of war.”. (shrink)

In this paper I question the morality of U.S. military supremacy or hegemony in terms of what constitute the legitimate use of military force and the proper preparation for using such force. I first discuss in a somewhat synoptic fashion how American hegemonic military force has been justified in dishonest ways and wrongly executed. Next, I show that Just War Theory needs to be revised in order to come to a convincing assessment of U.S. military hegemony and its use of (...) military force. This leads me to propose “just military preparedness,” consisting of five principles of just military preparedness, as a new category of JWT. The failure of the United States to satisfy the principles puts into question its very capability of justly resorting to military force, of lawfully executing force, and of establishing a just peace after war. The principles also point to a more humane alternative of how the United States could meet security threats and sustain a peaceful international order. (shrink)

"Immigration," published in Ethics, Revised Edition, pages 715-17, reprinted by permission of the publisher Salem Press. Copyright, ©, 2004 by Salem Press.

"Immanuel Kant," published in Ethics, Revised Edition, pages 804-06, reprinted by permission of the publisher Salem Press. Copyright, ©, 2004 by Salem Press. Reprinted in International Encyclopedia of Ethics.

A short introduction to the main jus ad bellum and jus in bello principles. A short annotated bibliography is included.

"Kantian Ethics," published in Ready Reference: Ethics, Revised Edition, pages 806-08, reprinted by permission of the publisher Salem Press. Copyright, ©, 2004 by Salem Press.