‘If in this book harsh words are spoken about some of the greatest among the intellectual leaders of mankind, my motive is not, I hope, to belittle them. It springs rather from my conviction that, if our civilization is to survive, we must break with the habit of deference to great men.’ - Karl Popper, from the Preface Written in political exile during the Second World War and first published in two volumes in 1945, Karl Popper’s The Open (...) Society and Its Enemies is one of the most influential books of all time. Hailed by Bertrand Russell as a ‘vigorous and profound defence of democracy’, its now legendary attack on the philosophies of Plato, Hegel and Marx exposed the dangers inherent in centrally planned political systems and through underground editions become an inspiration to lovers of freedom living under communism in Eastern Europe. Popper’s highly accessible style, his erudite and lucid explanations of the thoughts of great philosophers and the recent resurgence of totalitarian regimes around the world are just three of the reasons for the enduring popularity of The Open Society and Its Enemies and why it demands to be read today and in years to come. (shrink)

If one formulates Helmholtz’s ideas about perception in terms of modern-day theories one arrives at a model of perceptual inference and learning that can explain a remarkable range of neurobiological facts. Using constructs from statistical physics it can be shown that the problems of inferring what cause our sensory inputs and learning causal regularities in the sensorium can be resolved using exactly the same principles. Furthermore, inference and learning can proceed in a biologically plausible fashion. The ensuing scheme rests on (...) Empirical Bayes and hierarchical models of how sensory information is generated. The use of hierarchical models enables the brain to construct prior expectations in a dynamic and context-sensitive fashion. This scheme provides a principled way to understand many aspects of the brain’s organisation and responses. In this paper, we suggest that these perceptual processes are just one emergent property of systems that conform to a free-energy principle. The free-energy considered here represents a bound on the surprise inherent in any exchange with the environment, under expectations encoded by its state or configuration. A system can minimise free-energy by changing its configuration to change the way it samples the environment, or to change its expectations. These changes correspond to action and perception, respectively, and lead to an adaptive exchange with the environment that is characteristic of biological systems. This treatment implies that the system’s state and structure encode an implicit and probabilistic model of the environment. We will look at models entailed by the brain and how minimisation of free-energy can explain its dynamics and structure. (shrink)

_Ideology and Utopia_ argues that ideologies are mental fictions whose function is to veil the true nature of a given society. They originate unconsciously in the minds of those who seek to stabilise a social order. Utopias are wish dreams that inspire the collective action of opposition groups which aim at the entire transformation of society. Mannheim shows these two opposing elements to dominate not only our social thought but even unexpectedly to penetrate into the most scientific theories in philosophy, (...) history and the social sciences. This new edition contains a new preface by Bryan S. Turner which describes Mannheim's work and critically assesses its relevance to modern sociology. The book is published with a comprehensive bibliography of Mannheim's major works. (shrink)

Realism and the Aim of Science is one of the three volumes of Karl Popper’s Postscript to the Logic of scientific Discovery. The Postscript is the culmination of Popper’s work in the philosophy of physics and a new famous attack on subjectivist approaches to philosophy of science. Realism and the Aim of Science is the first volume of the Postcript . Popper here formulates and explains his non-justificationist theory of knowledge: science aims at true explanatory theories, yet it can (...) never prove, or justify, any theory to be true, not even if is a true theory. Science must continue to question and criticise all its theories, even those that happen to be true. Realism and the Aim of Science presents Popper’s mature statement on scientific knowledge and offers important insights into his thinking on problems of method within science. (shrink)

The World of Parmenides is a unique collection of essays that not only explores the complexity of ancient Greek thought, but also reveals Popper's engagement with Presocratic philosophy and the enlightenment he experienced in reading Parmenides. It includes writings on Greek science, philosophy and history and demonstrates Popper's life-long fascination with the presocratic philosophers, in particular Parmenides, Xenophanes and Heraclitus.

According to the Timing Argument, death is not bad for the individual who dies, because there is no time at which it could be bad for her. Defenders of the badness of death have objected to this influential argument, typically by arguing that there are times at which death is bad for its victim. In this paper, I argue that a number of these writers have been concerned with quite different formulations of the Timing Argument. Further, and more importantly, I (...) show that their objections to the Timing Argument fail as attempts to refute the argument in its most challenging form. (shrink)

There is a steadily growing literature on the role of the immune system in psychiatric disorders. So far, these advances have largely taken the form of correlations between specific aspects of inflammation (e.g. blood plasma levels of inflammatory markers, genetic mutations in immune pathways, viral or bacterial infection) with the development of neuropsychiatric conditions such as autism, bipolar disorder, schizophrenia and depression. A fundamental question remains open: why are psychiatric disorders and immune responses intertwined? To address this would require a (...) step back from a historical mind–body dualism that has created such a dichotomy. We propose three contributions of active inference when addressing this question: translation, unification, and simulation. To illustrate these contributions, we consider the following questions. Is there an immunological analogue of sensory attenuation? Is there a common generative model that the brain and immune system jointly optimise? Can the immune response and psychiatric illness both be explained in terms of self-organising systems responding to threatening stimuli in their external environment, whether those stimuli happen to be pathogens, predators, or people? Does false inference at an immunological level alter the message passing at a psychological level (or vice versa) through a principled exchange between the two systems? (shrink)

Our engagement with social media, smart and mobile technologies is ambiguous and raises existential questions about the naturalness and desirability of hyper-connectivity. On the one hand, we benefit from using these technologies in organizing and socializing our everyday life. On the other hand, they further complicate our lives. Hence, in recent years, more and more people choose to abstain from digital media by taking on a so-called ‘digital detox,’ a period of living without these technologies. In this article, we look (...) at ‘digital detoxing’ from an existential perspective by introducing Kierkegaard’s existential categories of repetition and recollection to tackle the question whether ‘dropping out’ is a meaningful act or a temporary respite. What would it mean, so we ask, to find a proper balance in a world that demands constant connectivity? (shrink)

Much recent work in metaontology challenges the so-called ‘Quinean tradition’ in metaphysics. Especially prominently, Amie Thomasson argues for a highly permissive ontology over ontologies which eliminate many entities. I am concerned with disputing not her ontological claim, but the methodology behind her rejection of eliminativism – I focus on ordinary objects. Thomasson thinks that by endorsing the Quinean criterion of ontological commitment eliminativism goes wrong; a theory eschewing quantification over a kind may nonetheless be committed to its existence. I argue (...) that, contrary to Thomasson's claims, we should retain the Quinean criterion. Her arguments show that many eliminativist positions are flawed, but their flaws lie elsewhere: the Quinean criterion is innocent. Showing why reveals the importance of pragmatism in ontology. In §1 I compare Thomasson's account and the eliminativist views to which it stands in opposition. In §2 I re-construct Thomasson's reasons for rejecting the Quinean criterion. In §3 I defend the Quinean criterion, showing that the eliminativists’ flaws are not consequences of applying the Quinean criterion, before explaining the criterion's importance when properly understood. I conclude that Thomasson, though right to criticise the methodology of ordinary-object eliminativists, is wrong to identify the Quinean criterion as the source of their mistake. (shrink)

Teleosemantics is the view that mental content depends on etiological function. Moral adaptationism is the view that human morality is an evolved adaptation. Jointly, these two views offer new venues for naturalist metaethics. Several authors have seen, in the conjunction of these views, the promise of assigning naturalistically respectable descriptive content to moral judgments. One such author is Neil Sinclair, who has offered a blueprint for how to conduct teleosemantic metaethics with the help of moral adaptationism. In this paper, I (...) argue that the prospects for assigning descriptive content to moral judgments on the basis of teleosemantics are bad. I develop my argument in dialogue with Sinclair’s paper and argue that, although Sinclair’s account of the evolution of morality is plausible, the teleosemantic account of the descriptive content of moral judgments which he bases thereon suffers from crucial shortcomings. I argue further that, given some minimal plausible assumptions about the evolution of morality made by Sinclair, no assignment of descriptive content is possible. Contrary to prevailing assumptions, the combination of moral adaptationism and teleosemantics suggests that moral judgments lack descriptive content. (shrink)

First published in 1988. Routledge is an imprint of Taylor & Francis, an informa company.

The concept of self-stigmatization is guided by a representational account of selfhood that fails to accommodate for resilience against, and recovery from, stigma. Mainstream research on self-stigma has portrayed it only as a reified self, that is, as collectively shared stereotypes representing individuals’ identity. Self-stigma viewed phenomenologically, however, elucidates what facilitates a stigmatized self. A phenomenological analysis discloses the lived phenomenon of stigma as an act of self-objectification, as related to the experiential self, and therefore an achievement of subjectivity. Following (...) a phenomenological account, the stigmatized self can thus return to a state-of-being, similar to that Jean-Paul Sartre once referred to as bad faith. Regarding your identity as analogous to an inanimate thing is ultimately self-deceptive. Self-stigma is here phenomenologically illuminated as constituted by basic discretion, that is, as a minimal form of agency. The study found that basic discretion can uphold the possibility for emancipation from a stigmatized self. (shrink)

Keine ausführliche Beschreibung für "Die geistige Situation der Zeit" verfügbar.

In a recent article in this journal, Anna Christensen raises an ‘Epicurean challenge’ to Don Marquis’ much-discussed argument for the immorality of abortion. According to Marquis’ argument, abortion is pro tanto morally wrong because it deprives the fetus of ‘a future like ours’. Drawing on the Epicurean idea that death cannot harm its victim because there is no subject to be harmed, Christensen argues that neither fetuses nor anyone else can be deprived of a future like ours by dying. Thus, (...) Christensen suggests, the moral wrongness of abortion cannot be grounded in the relevant individual’s being deprived of a future like ours. In this reply, I argue that on no interpretation of Christensen’s Epicurean challenge does it succeed. (shrink)