This book addresses universal tendencies of human vowel systems from the point of view of self-organisation. It uses computer simulations to show that the same universal tendencies found in human languages can be reproduced in a population of artificial agents. These agents learn and use vowels with human-like perception and production, using a learning algorithm that is cognitively plausible. The implications of these results for the evolution of language are then explored.

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent-based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, even though (...) the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co-evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent‐based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, even though (...) the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally (a self‐organized result of cultural evolution) is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co‐evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

How music and speech evolved is a mystery. Several hypotheses on their origins, including one on their joint origins, have been put forward but rarely tested. Here we report and comment on the first experiment testing the hypothesis that speech and music bifurcated from a common system. We highlight strengths of the reported experiment, point out its relatedness to animal work, and suggest three alternative interpretations of its results. We conclude by sketching a future empirical programme extending this work.

In recent years, neuroscience has been a particularly prolific discipline stimulating many innovative treatment approaches in medicine. However, when it comes to the brain, new techniques of intervention do not always meet with a positive public response, in spite of promising therapeutic benefits. The reason for this caution clearly is the brain’s special importance as “organ of the mind”. As such it is widely held to be the origin of mankind’s unique position among living beings. Likewise, on the level of (...) the individual human being, the brain is considered the material substrate of those traits that in combination render each person unique. In view of this preeminent significance of the brain, it is understandable that, in general, interventions into the brain are considered a delicate issue and that new techniques of intervention are scrutinised with particular care. However, in doing so it is important not to go to the opposite extreme and shy away from promising new therapeutic approaches for debilitating disorders of the brain. With respect to the new techniques of brain intervention a broad interdisciplinary perspective is required to discern irrational fear from justified concern. Hence, the Europäische Akademie established a project group consisting, on the one hand, of experts from different fields of medicine who have got first-hand experience of applying the techniques at issue and, on the other hand, of philosophers and a legal expert. The task of this team was to review the state of the art with respect to each single technique of intervening in the brain, to indicate future developments, and to address the ethical and legal issues common to all of them. The project’s outcome is the book at hand. (shrink)

Jackendoff's scenario of the evolution of language is a major contribution towards a more rigorous theory of the origins of language, because it is theoretically constrained by a testable theory of modern language. However, the theoretical constraints from evolutionary theory are not really recognized in his work. We hope that Jackendoff's lead will be followed by intensive cooperation between linguistic theorists and evolutionary modellers.

In language, recombination of a discrete set of meaningless building blocks forms an unlimited set of possible utterances. How such combinatorial structure emerged in the evolution of human language is increasingly being studied. It has been shown that it can emerge when languages culturally evolve and adapt to human cognitive biases. How the emergence of combinatorial structure interacts with the existence of holistic iconic form-meaning mappings in a language is still unknown. The experiment presented in this paper studies the role (...) of iconicity and human cognitive learning biases in the emergence of combinatorial structure in artificial whistled languages. Participants learned and reproduced whistled words for novel objects with the use of a slide whistle. Their reproductions were used as input for the next participant, to create transmission chains and simulate cultural transmission. Two conditions were studied: one in which the persistence of iconic form-meaning mappings was possible and one in which this was experimentally made impossible. In both conditions, cultural transmission caused the whistled languages to become more learnable and more structured, but this process was slightly delayed in the first condition. Our findings help to gain insight into when and how words may lose their iconic origins when they become part of an organized linguistic system. (shrink)

Arbitrary communication systems can emerge from iconic beginnings through processes of conventionalisation via interaction. Here, we explore whether this process of conventionalisation occurs with continuous, auditory signals. We conducted an artificial signalling experiment. Participants either created signals for themselves, or for a partner in a communication game. We found no evidence that the speech-like signals in our experiment became less iconic or simpler through interaction. We hypothesise that the reason for our results is that when it is difficult to be (...) iconic initially because of the constraints of the modality, then iconicity needs to emerge to enable grounding before conventionalisation can occur. Further, pressures for discrimination, caused by the expanding meaning space in our study, may cause more complexity to emerge, again as a result of the restrictive signalling modality. Our findings have possible implications for the processes of conventionalisation possible in signed and spoken languages, as the spoken modality is more restrictive than the manual modality. (shrink)

Temporal regularities in speech, such as interdependencies in the timing of speech events, are thought to scaffold early acquisition of the building blocks in speech. By providing on-line clues to the location and duration of upcoming syllables, temporal structure may aid segmentation and clustering of continuous speech into separable units. This hypothesis tacitly assumes that learners exploit predictability in the temporal structure of speech. Existing measures of speech timing tend to focus on first-order regularities among adjacent units, and are overly (...) sensitive to idiosyncrasies in the data they describe. Here, we compare several statistical methods on a sample of 18 languages, testing whether syllable occurrence is predictable over time. Rather than looking for differences between languages, we aim to find across languages (using clearly defined acoustic, rather than orthographic, measures), temporal predictability in the speech signal which could be exploited by a language learner. First, we analyse distributional regularities using two novel techniques: a Bayesian ideal learner analysis, and a simple distributional measure. Second, we model higher-order temporal structure—regularities arising in an ordered series of syllable timings—testing the hypothesis that non-adjacent temporal structures may explain the gap between subjectively-perceived temporal regularities, and the absence of universally-accepted lower-order objective measures. Together, our analyses provide limited evidence for predictability at different time scales, though higher-order predictability is difficult to reliably infer. We conclude that temporal predictability in speech may well arise from a combination of individually weak perceptual cues at multiple structural levels, but is challenging to pinpoint. (shrink)

Languages show substantial variability between their speakers, but it is currently unclear how the structure of the communicative network contributes to the patterning of this variability. While previous studies have highlighted the role of network structure in language change, the specific aspects of network structure that shape language variability remain largely unknown. To address this gap, we developed a Bayesian agent‐based model of language evolution, contrasting between two distinct scenarios: language change and language emergence. By isolating the relative effects of (...) specific global network metrics across thousands of simulations, we show that global characteristics of network structure play a critical role in shaping interindividual variation in language, while intraindividual variation is relatively unaffected. We effectively challenge the long‐held belief that size and density are the main network structural factors influencing language variation, and show that path length and clustering coefficient are the main factors driving interindividual variation. In particular, we show that variation is more likely to occur in populations where individuals are not well‐connected to each other. Additionally, variation is more likely to emerge in populations that are structured in small communities. Our study provides potentially important insights into the theoretical mechanisms underlying language variation. (shrink)

A brief overview of metaethics, written for students.

Hegel is most famous for his view that conflicts between contrary positions are necessarily resolved. Whereas this optimism, inherent in modernity as such, has been challenged from Kierkegaard onward, many critics have misconstrued Hegel's own intentions. Focusing on the Science of Logic, this transformative reading of Hegel on the one hand exposes the immense force of Hegel's conception of tragedy, logic, nature, history, time, language, spirit, politics, and philosophy itself. Drawing out the implications of Hegel's insight into tragic conflicts, on (...) the other hand, De Boer brings into play a form of negativity that allows us to understand why the entanglement of complementary positions always tends to turn into their conflict, but not necessarily into its resolution. (shrink)

Gricean pragmatics. Saying vs. implicating ; Discourse and cooperation ; Conversational implicatures ; Generalised vs. particularised ; Cancellability ; Gricean reasoning and the pragmatics of what is said -- The standard recipe for Q-implicatures. The standard recipe ; Inference to the best explanation ; Weak implicatures and competence ; Relevance ; Conclusion -- Scalar implicatures. Horn scales and the generative view ; Implicatures and downward entailing environments ; Disjunction : exclusivity and ignorance ; Conclusion -- Psychological plausibility. Charges of psychological (...) inadequacy ; Logical complexity ; Abduction ; Incremental processing ; The intentional stance ; Alternatives ; Conclusion -- Nonce inference or defaults?. True defaults ; Strong defaultism ; Weak defaultism ; Contextualism ; Conclusion -- Intentions, alternatives, and free choice. Free choice ; Problems with the standard recipe ; Intentions first ; Free choice explained ; Comparing alternatives ; Two flavours of Q-implicature ; Conclusion -- Embedded implicatures : the problems. The problems ; Varieties of conventionalism ; Against conventionalism ; Conclusion -- Embedded implicatures : a Gricean approach. Disjunction ; Belief reports ; Factives and other presupposition inducers ; Indefinites ; Contrastive construals and lexical pragmatics ; Conclusion. (shrink)

Rationality, Norms and Institutions: In Search of a Realistic Utopia The main goal of political philosophers is to search for a realistic utopia by taking individuals as they are and institutions, rules and laws as they might be. Instead of trying to change either individuals or institutions in order to improve society, this article argues that both strategies should be combined, since there are causal connections running both ways. Because individuals ultimately devise and uphold institutions, one should be optimistic about (...) the possibilities of deliberately improving society through institutional reforms. However, one should adequately model the influences that these reforms have on individuals, their identities and their motivations. From the fact that individuals can actually turn into egoists if they are treated as such, this article stresses the need to detect and maintain non-egoistic motivations. Since informal norms, for example, motivate individuals to socially desirable action, it is important to devise formal institutions that support rather than erode norm-guided behavior. (shrink)

This article undertakes a dual task. The first is to argue that the various positions of major Marxist thinkers on revolution may be gathered under the common framework of kairós, understood as a resolutely temporal term relating to the critical time, the opportune moment that appears unexpectedly and must be seized. The second task is to question the nature of kairós in terms of its biblical, class and economic residues. An investigation of the use of the term in classical Greece (...) reveals that it refers to both time and place, designating primarily what is in the right time and correct place. Given the class identifications of the Greek writers who deal with kairós and their subtle defences of their propertied, ruling class status, the term becomes problematic in light of these associations that trail behind it. In response, I seek to develop the political implications of the true opposite of kairós, namely ákairos, what is ill-timed and in the wrong place. (shrink)

According to the error theory, normative judgements are beliefs that ascribe normative properties, even though such properties do not exist. In this paper, I argue that we cannot believe the error theory, and that this means that there is no reason for us to believe this theory. It may be thought that this is a problem for the error theory, but I argue that it is not. Instead, I argue, our inability to believe the error theory undermines many objections that (...) have been made to this theory. (shrink)

Unbelievable Errors defends an error theory about all normative judgements: not just moral judgements, but also judgements about reasons for action, judgements about reasons for belief, and instrumental normative judgements. This theory states that normative judgements are beliefs that ascribe normative properties, but that normative properties do not exist. It therefore entails that all normative judgements are false. -/- Bart Streumer also argues, however, that we cannot believe this error theory. This may seem to be a problem for the (...) theory. But he argues that it makes this error theory more likely to be true, since it undermines objections to the theory and it makes it harder to reject the arguments for the theory. -/- He then sketches how certain other philosophical theories can be defended in a similar way. He concludes that to make philosophical progress, we need to make a sharp distinction between a theory's truth and our ability to believe it. (shrink)

In Magnolia, a 1999 movie written and directed by then 29-year-old Paul Thomas Anderson, we follow a range of characters who all try to come to terms with the things happening to them in both the present and past. This chapter interprets the movie as making a philosophical point about meaning: how and why do people find meaning in and attribute meaning to things, even if they seem to happen for no apparent reason at all? We will analyze how both (...) the movie’s characters and all of us watching the movie, living our own lives, try to make sense of the often absurd coincidences in life. More importantly, we will ask why we feel the need to “make sense” of the things that happen to and around us and what happens when our attempts fail. How should we respond to things that simply don’t make sense, even after we have tried hard? The chapter explains how (key scenes of) the movie can be interpreted as visualizing the philosophical notion of “the absurd” and inviting us to respond to absurdities in ways already articulated by the French existentialist Albert Camus. (shrink)

Does philosophical critique have a future? What are its possibilities, limits, and presuppositions? Bringing together outstanding scholars from various traditions, this collection of essays is the first to examine the forms of critique that have shaped modern and contemporary continental thought. Through critical analyses of key texts by, among others, Spinoza, Kant, Hegel, Marx, Adorno, Habermas, Foucault, and Rancière, it traces the way critique has time and again geared itself towards new cultural, social, and political problems, shedding those of its (...) assumptions no longer deemed tenable. It is our hope that the many voices of critique that arise from the present volume will produce effects – new doubts, new insights, new challenges, or new resources – that none could have achieved on their own. (shrink)

My response to Gabriele Gava’s Kant’s Critique of Pure Reason and the Method of Metaphysics (2023) focuses on Kant’s conception of the role of critique in the Critique of Pure Reason. On my account, Gava’s emphasis on the constructive elements of the Critique downplays the critique of former metaphysics elaborated in all three parts of the Transcendental Doctrine of Elements. After some comments on Kant’s conception of the Critique as a doctrine of method, I support this view by discussing the (...) relation between transcendental philosophy and transcendental critique, Kant’s analysis of the faculties, and his transcendental deduction of space. (shrink)

The reform movement in science is seemingly constructing a new moral economy of science around process and bureaucracy, in which a new scientific etiquette is emerging that prescribes the performance of reformed science as civilised, efficient and objective. Bureaucratic innovations were borne out of the reform movement that seek to prescribe specific research processes, including but not limited to preregistration and registered reports. This moral economy emerges in the form of a bureaucracy and its epistemic uniformity actively suppresses scientific plurality. (...) This paper argues that Eliasian drivers such as distinction, shame and disgust, act to pressure scientists into adopting this new etiquette. Even though the etiquette's appearance is quite new, it can be traced back to existing moral economies of science and their pursuit of efficiency and objectivity. (shrink)

This book not only explicates Stalin's thoughts, but thinks with and especially through Stalin. It argues that Stalin often thought at the intersections between theology and Marxist political philosophy - especially regarding key issues of socialism in power. Careful and sustained attention to Stalin's written texts is the primary approach used. The result is a series of arresting efforts to develop the Marxist tradition in unexpected ways. Starting from a sympathetic attitude toward socialism in power, this book provides us with (...) an extremely insightful interpretation of Stalin's philosophy of socialism. It is not only a successful academic effort to re-articulate Stalin's philosophy, but also a creative effort to understand socialism in power in the context of both the former Soviet Union and contemporary China. ------- Zhang Shuangli, Professor of Marxist philosophy, Fudan University Boer's book, far from both "veneration" and "demonization" of Stalin, throws new light on the classic themes of Marxism and the Communist Movement: language, nation, state, and the stages of constructing post-capitalist society. It is an original book that also pays great attention to the People's Republic of China, arising from the reforms of Deng Xiaoping, and which is valuable to those who, beyond the twentieth century, want to understand the time and the world in which we live. -------Domenico Losurdo, University of Urbino, Italy, author of Stalin: The History and Critique of a Black Legend. (shrink)

This is an attempt at reviving Kneale's version of the description theory of names, which says that a proper name is synonymous with a definite description of the form ‘the individual named so-and-so’. To begin with, I adduce a wide range of observations to show that names and overt definites are alike in all relevant respects. I then turn to Kripke's main objection against Kneale's proposal, and endeavour to refute it. In the remainder of the paper I elaborate on Kneale's (...) analysis, adopting a theory of presupposition proposed by van der Sandt. (shrink)

Technological developments increasingly enable monitoring and steering the behavior of individuals. Enforcement of the law by means of technology can be much more effective and pervasive than enforcement by humans, such as law enforcement officers. However, it can also bypass legislators and courts and minimize any room for civil disobedience. This significantly reduces the options to challenge legal rules. This, in turn, can impede the development of legal systems. In this paper, an analogy is made with evolutionary biology to illustrate (...) that the possibility to deviate from legal rules and existing norms is sometimes necessary for the further development of legal systems. Some room to break the law, for instance, through civil disobedience or imperfect enforcement of the law, will ensure sufficient variation. This allows for properly evolving legal systems that can continue to provide fair solutions, even when society and concepts of fairness further develop. (shrink)

Given the history of the twentieth century, it is understandable that many contemporary philosophers—in the wake of Kierkegaard, Marx, and Nietzsche—have turned against Hegel’s seemingly unbridled optimism. As I will argue in this chapter, however, Hegel’s account of modern civilizations is much less optimistic than his account of the past. Hegel’s hesitation as to the capacity of modernity to resolve its immanent conflicts preeminently emerges in his account of the oppositions between poverty and wealth and between the state and its (...) citizens. In this chapter I will focus on passages from the Essay on Natural Law, the Lectures on the Philosophy of History, and the Philosophy of Right that express this hesitation and, hence, complicate the prevailing view of Hegel’s philosophy of world history. (shrink)

Frank Jackson has argued that, given plausible claims about supervenience, descriptive predicates and property identity, there are no irreducibly normative properties. Philosophers who think that there are such properties have made several objections to this argument. In this paper, I argue that all of these objections fail. I conclude that Jackson's argument shows that there are no irreducibly normative properties.

We argued that formal objections to the error theory overgeneralize and therefore fail. Christine Tiefensee and Gregory Wheeler deny this. We argue that they are wrong, for two reasons. The first concerns how we should adjudicate conflicts between formal and substantive commitments. The second concerns an overlooked tension between formal objections and non-error-theoretic views. Our discussion shows that the commitments behind formal objections to the error theory, such as the dual schema, should be regarded as much more contentious than is (...) often assumed. (shrink)

Recent research by the author has established that boards have an important and significant role to play when it comes to their organisations' strategy and strategic planning process. But is there room for improvement? According to the directors that have participated in an ongoing research project, the answer is most definitely 'yes'. The current paper identifies and discusses the top 13 areas of improvement, which directors feel need to be addressed if their responsibility for strategy is to be exercised properly. (...) The author's findings point especially to the types of practices that modern boards need to follow if they are serious about getting the maximum benefit from their engagement with management in an organisation's strategic planning process. (shrink)

In this volume, Geurts takes discourse representation theory (DRT), and turns it into a unified account of anaphora and presupposition, which he applies not only to the standard problem cases but also to the interpretation of modal expressions, attitude reports, and proper names. The resulting theory, for all its simplicity, is without doubt the most comprehensive of its kind to date. The central idea underlying Geurts' 'binding theory' of presupposition is that anaphora is just a special case of presupposition projection. (...) But this is only one of the ways in which the concept of presupposition is taken beyond its traditional limits. Geurts shows, furthermore, that presupposition projection is crucially involved in several phenomena that are not usually viewed in presuppositional terms, such as modal subordination, de re readings of attitude reports, and rigid designation. While making his case for DRT and the binding theory, Geurts also presents an incisive analysis of what is probably still the most influential account of presupposition, viz. the satisfaction theory, demonstrating that there are fundamental problems not only with this theory but with the very framework in which it is couched. (shrink)

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Walter Sinnott-Armstrong argues that 'ought' does not entail 'can', but instead conversationally implicates it. I argue that Sinnott-Armstrong is actually committed to a hybrid view about the relation between 'ought' and 'can'. I then give a tensed formulation of the view that 'ought' entails 'can' that deals with Sinnott-Armstrong's argument and that is more unified than Sinnott-Armstrong's view.