Stephen Jay Gould argued that replaying the ‘tape of life’ would result in radically different evolutionary outcomes. Recently, biologists and philosophers of science have paid increasing attention to the theoretical importance of convergent evolution—the independent origination of similar biological forms and functions—which many interpret as evidence against Gould’s thesis. In this paper, we examine the evidentiary relevance of convergent evolution for the radical contingency debate. We show that under the right conditions, episodes of convergent evolution can constitute valid natural experiments (...) that support inferences regarding the deep counterfactual stability of macroevolutionary outcomes. However, we argue that proponents of convergence have problematically lumped causally heterogeneous phenomena into a single evidentiary basket, in effect treating all convergent events as if they are of equivalent theoretical import. As a result, the ‘critique from convergent evolution’ fails to engage with key claims of the radical contingency thesis. To remedy this, we develop ways to break down the heterogeneous set of convergent events based on the nature of the generalizations they support. Adopting this more nuanced approach to convergent evolution allows us to differentiate iterated evolutionary outcomes that are probably common among alternative evolutionary histories and subject to law-like generalizations, from those that do little to undermine and may even support, the Gouldian view of life. (shrink)

The ‘convergence conception’ of political liberalism has become increasingly popular in recent years. Steven Wall has shown that convergence liberals face a serious dilemma in responding to disagreement about whether laws are publicly justified. What I call the ‘conjunctive approach’ to such disagreement threatens anarchism, while the ‘non-conjunctive’ approach appears to render convergence liberalism internally inconsistent. This paper defends the non-conjunctive approach, which holds that the correct view of public justification should be followed even if some citizens (...) do not consider enacted laws to be publicly justified. My argument sheds light on the fundamental structure of convergence liberalism. (shrink)

What can we know? How should we live? What is there? Philosophers famously diverge in the answers they give to these and other philosophical questions. It is widely presumed that a lack of convergence on these questions suggests that philosophy is not progressing at all, is not progressing fast enough, or is not progressing as fast as other disciplines, such as the natural sciences. Call the view that ideal philosophical progress is marked by at least some degree of (...) class='Hi'>convergence on the core philosophical questions the pro-convergence thesis. I will argue that there is reason to reject the pro-convergence thesis in favor of the anti-convergence thesis, the view that significant viewpoint convergence is at odds with the aims of a philosophically ideal community. The argument centers on a thought experiment about two different philosophical communities. (shrink)

Stephen Jay Gould argued that replaying the “tape of life” would result in a radically different evolutionary outcome. Some biologists and philosophers, however, have pointed to convergent evolution as evidence for robust replicability in macroevolution. These authors interpret homoplasy, or the independent origination of similar biological forms, as evidence for the power of natural selection to guide form toward certain morphological attractors, notwithstanding the diversionary tendencies of drift and the constraints of phylogenetic inertia. In this paper, I consider the implications (...) of homoplasy for the debate over the nature of macroevolution. I argue that once the concepts of contingency and convergence are fleshed out, it becomes clear that many instances of homoplasy fail to negate Gould’s overarching thesis, and may in fact support a Gouldian view of life. My argument rests on the distinction between parallelism and convergence, which I defend against a recent challenge from developmental biology. I conclude that despite the difficulties in defining and identifying parallelism, the concept remains useful and relevant to the contingency controversy insofar as it underscores the common developmental origins of iterated evolution. (shrink)

Philosophers often characterize discourse in general as aiming at some sort of convergence (in beliefs, plans, dispositions, feelings, etc.), and many views about aesthetic discourse in particular affirm this thought. I argue that a convergence norm does not govern aesthetic discourse. The conversational dynamics of aesthetic discourse suggest that typical aesthetic claims have directive force. I distinguish between dynamic and illocutionary force and develop related theories of each for aesthetic discourse. I argue that the illocutionary force of aesthetic (...) utterances is typically invitational because its dynamic force is influenced by a ‘communal’ norm. I draw on dynamic pragmatics to develop a formal account of this dynamic force that explains why invitation has pride of place in aesthetic conversation. It turns out that the end of aesthetic discourse is not convergence but a distinctive form of community, a kind of harmony of individuality, that is compatible with aesthetic disagreement. If this is right, then convergence theories of aesthetic and normative discourse, and of conversation in general, need to be revised. (shrink)

The Western Middle Ages witnessed the emergence of a wide array of economic theories of public life and the common good that emphasized the worthiness (indeed priority) of ensuring a satisfactory arrangement of economic goods primarily for the sake of meeting the physical, temporal needs of individuals from all classes and orders. The chapter surveys a plethora of texts, dating from the middle of the twelfth century up to the end of the fifteenth, that considered pragmatic issues related to how (...) the material self-interest of human beings coincided with the augmentation of public wealth within a community, and especially how governmental policies promoted or hampered the goal of personal economic improvement. Despite the diversity of and occasional discordance among these writings, all of them fundamentally agree on two interrelated points: (1) the pursuit of material self-interest, rather than conflicting with or detracting from the common good, actually supports and enhances it; (2) the responsibility of government to promote the public welfare requires paying careful attention to the protection and promotion of private advantage. (shrink)

'A breath-taking panorama.' The Sunday Times 'Those seeking a grand overview of science's greatest hits over the past century will find it here.' The Washington Post 'Convincing... A provocative history probes the connections that are helping to unify scientific disciplines.... Watson examines an impressive array of connections... Whether you identify as a biologist, an astrophysicist, or a mathematician, one thing's for certain: We're all ultimately working with the same fabric.' Science 'Anyone interested in science will enjoy this fascinating, fast-paced, intellectual (...) journey through the history of scientific ideas. Watson masterfully weaves the concept of convergence through covering an astonishing breadth of scientific and cultural domains.' Mario Livio, astrophysicist, author of Brilliant Blunders and Why? Convergence is a history of modern science with an original and significant twist. Various scientific disciplines, despite their very different beginnings, and disparate areas of interest have been coming together over the past 150 years, converging and coalescing, to identify one extraordinary master narrative, one overwhelming interlocking coherent story: the history of the universe. Intimate connections between physics and chemistry have been revealed as have the links between quantum chemistry and molecular biology. Astronomy has been augmented by particle physics, psychology has been increasingly aligned with physics, with chemistry and even with economics. Genetics has been harmonised with linguistics, botany with archaeology, climatology with myth. This is a simple insight but one with profound consequences. Convergence is, as Nobel Prize-winning physicist Steven Weinberg has put it, 'The deepest thing about the universe.' This book does not, however, tell the story by beginning at the beginning and ending at the end. It is much more revealing, more convincing, and altogether more thrilling to tell the story as it emerged, as it began to fall into place, piece by piece, converging tentatively at first, but then with increasing speed, vigour and confidence. The overlaps and interdependence of the sciences, the emerging orderthat they are gradually uncovering, is without question the most enthralling aspect of twenty-first-century science. (shrink)

Public reason liberals argue that coercive social arrangements must be publicly justified in order to be legitimate. According to one model of public reason liberalism, known as convergence liberalism, this means that every moderately idealized member of the public must have sufficient reason, of her own, to accept the arrangement. A corollary of this Principle of Public Justification is that a coercive social arrangement fails to be legitimate so long as even one member of the public fails to have (...) sufficient reason to endorse the arrangement. This high bar for justification has led many critics, most notably David Enoch, to argue that convergence models are incapable of vindicating liberalism. They argue that in a sufficiently diverse society, there will always be someone for whom an arrangement is not justified, and therefore convergence liberalism leads to anarchy – the view that no law or coercive social arrangement is legitimate. Other critics accept that convergence liberalism could vindicate core liberal institutions but nothing more, and thus argue that the view makes libertarians effective “dictators”. In either case, critics hold that this objection is sufficient to reject convergence liberalism, either in favor of alternative public reason views or as a means of rejecting all public reason views. In this paper I argue that convergence liberalism can overcome this anarchy objection. I show that the objection largely rests on misinterpretations of convergence liberalism, and thus clarify aspects of the theory. However, I also show that internal debate over the scope of public justification – what stands in need of justification – must be resolved in favor of a wide scope, encompassing both State-based and non-State-based coercion, in order to overcome the anarchy objection. Therefore, my response to the anarchy objection has implications for how convergence liberalism should be developed going forward. (shrink)

Originally published in Great Britain in 2016 with different subtitle: Convergence: the deepest idea in the universe.

Katie McShane, while accepting my 'convergence hypothesis' (the view that anthropocentrists and nonanthropocentrists will tend to propose similar policies), argues that nonanthropocentrism is nevertheless superior because it allows conservationists to have a deeper emotional commitment to natural objects than can anthropocentrists. I question this reasoning on two bases. First, McShane assumes a philosophically tendentious distinction between intrinsic and instrumental value – a distinction that presupposes a dualistic worldview. Second, I question why McShane believes anthropocentrists – weak anthropocentrists, that is (...) – cannot 'love' or 'feel awe' toward natural objects. Her argument, that is, only works against strong anthropocentrism, which I never advocated. (shrink)

The paper analyzes dynamic epistemic logic from a topological perspective. The main contribution consists of a framework in which dynamic epistemic logic satisfies the requirements for being a topological dynamical system thus interfacing discrete dynamic logics with continuous mappings of dynamical systems. The setting is based on a notion of logical convergence, demonstratively equivalent with convergence in Stone topology. Presented is a flexible, parametrized family of metrics inducing the latter, used as an analytical aid. We show maps induced (...) by action model transformations continuous with respect to the Stone topology and present results on the recurrent behavior of said maps. (shrink)

Reasonable individuals often share a rationale for a decision but, in other cases, they make the same decision based on disparate and often incompatible rationales. The social contract tradition has been divided between these two methods of solving the problem of social cooperation: must social cooperation occur in terms of common reasoning, or can individuals with different doctrines simply converge on shared institutions for their own reasons? For Hobbes, it is rational for all persons, regardless of their theological beliefs, to (...) consent to the sovereign's power. But for Locke, only Protestants with a shared theology could be party to the social contract. Rousseau thought that private reasons are not part of the general will, and in Kant's hypothetical contract, pure noumena reach common principles for the social order through the same reasoning process. In A Theory of Justice, John Rawls agreed with Rousseau and Kant: selecting the principles of justice requires modeling parties to the original position as having identical reasons. But in Political Liberalism, Rawls embraced the idea of an overlapping consensus, which accords distinct reasons justificatory force. (shrink)

Concepts of L1 space, integrable functions and integrals are formalized in weak subsystems of second order arithmetic. They are discussed especially in relation with the combinatorial principle WWKL (weak-weak König's lemma and arithmetical comprehension. Lebesgue dominated convergence theorem is proved to be equivalent to arithmetical comprehension. A weak version of Lebesgue monotone convergence theorem is proved to be equivalent to weak-weak König's lemma.

Individuals shift their language to converge with interlocutors. Recent work has suggested that convergence can target not only observed but also expected linguistic behavior, cued by social information. However, it remains uncertain how expectations and observed behavior interact, particularly when they contradict each other. We investigated this using a cooperative map task experiment, in which pairs of participants communicated online by typing messages to each other in a miniature “alien” language that exhibited variation between alien species. The overall task (...) comprised three phases, in each of which participants were told that they would be paired with a different partner. One member of the pair was given explicit linguistic expectations in each phase, while the software controlled whether or not observed behavior from their partner would be consistent or inconsistent with these expectations. The other participant was given no such expectations, allowing us to control for the role of expectation. Participants converged to both observed and expected linguistic behavior, and convergence was boosted when observation and expectation were aligned. When expected and observed behavior were misaligned, participants updated their expectations, though convergence levels did not drop. Furthermore, participants generalized what they learned about one partner to apparent novel partners of the same alien species. We also discuss individual variation in convergence patterns and the lack of a relationship between linguistic convergence and success at the map task. Findings are consistent with observations outside the laboratory that language users converge toward expected linguistic behavior. They also have broader implications for understanding linguistic accommodation and the influence of social information on linguistic processing and production. (shrink)

According to political liberalism, laws must be justified to all citizens in order to be legitimate. Most political liberals have taken this to mean that laws must be justified by appeal to a specific class of ‘public reasons’, which all citizens can accept. In this paper I defend an alternative, convergence, model of public justification, according to which laws can be justified to different citizens by different reasons, including reasons grounded in their comprehensive doctrines. I consider three objections to (...) such an account—that it undermines sincerity in public reason, that it underestimates the importance of shared values, and that it is insufficiently deliberative—and argue that convergence justifications are resilient to these objections. They should therefore be included within a theory of political liberalism, as a legitimate form of public justification. This has important implications for the obligations that political liberalism places upon citizens in their public deliberations and reason-giving, and might make the theory more attractive to some of its critics, particularly those sympathetic to religious belief. (shrink)

This essay critically assesses the central claim of Kevin Vallier’s Liberal Politics and Public Faith: that public religious faith and public reason liberalism can be reconciled, because the values underlying public reason liberalism should lead us to endorse the ‘convergence view’, rather than the mainstream consensus view. The convergence view is friendlier to religious faith, because it jettisons the consensus view’s much-criticised ‘duty of restraint’. I present several challenges to Vallier’s claim. Firstly, if Vallier is right to reject (...) the duty of restraint then consensus theorists can also do so, and on the same grounds. Secondly, the independent force of the objections to the duty of restraint is unclear. Thirdly, Vallier has not successfully identified desiderata that unite all public reason liberals and favour convergence over consensus. Finally, even if convergence is in some ways friendlier to religious faith, this does not show that it will be attractive to religious citizens. (shrink)

Over the last century, emotion research has been beset by the problem of major disagreements with respect to the definition of the phenomenon and an abundance of different theories. Arguably, these divergences have had adverse effects on theory development, on the theoretical foundations of empirical research, and on knowledge accumulation in the study of emotion. Similar problems have been encountered in other areas of behavioural science. Increasingly, there have been calls to work towards some form of theory integration. In contrast, (...) here an effort is made to show that a reasonable degree of theory convergence in the area of emotion science can be attained by adopting a design feature-based working definition of emotion and highlighting the basic agreement on the components of the dynamic emotion process. The aim is to invite constructive discussion on communalities and divergences between different theories and foster the development of more complementary theoretical frameworks to guide future empirical research. (shrink)

The convergence of corporate social responsibility (CSR) and corporate governance (CG) has changed the corporate accountability mechanism. This has developed a socially responsible ‘corporate self-regulation’, a synthesis of governance and responsibility in the companies of strong economies. However, unlike in the strong economies, this convergence has not been visible in the companies of weak economies, where the civil society groups are unorganised, regulatory agencies are either ineffective or corrupt and the media and non-governmental organisations do not mirror the (...) corporate conscience. Using the case of Bangladesh, this article investigates the convergence between CSR and CG in the self-regulation of companies in a less vigilant environment. (shrink)

The Bayesian theorem on convergence to the truth states that a rational inquirer believes with certainty that her degrees of belief capture the truth about a large swath of hypotheses with increasing evidence. This result has been criticized as showcasing a problematic kind of epistemic immodesty when applied to infinite hypotheses that can never be approximated by finite evidence. The central point at issue—that certain hypotheses may forever be beyond the reach of a finite investigation no matter how large (...) one’s reservoir of evidence—cannot be captured adequately within standard probability theory. As an alternative, I propose a nonstandard probabilistic framework that, by using arbitrarily small and large numbers, makes room for the type of fine-grained conceptual distinctions appropriate for a deeper analysis of convergence to the truth. This framework allows for the right kind of modesty about attaining truth in the limit. (shrink)

Convergence liberalism has emerged as a prominent interpretation of public reason liberalism. Yet, while its main rival in the public reason literature—the Rawlsian consensus account of public reason—has faced serious scrutiny regarding its ability to secure equal citizenship forallmembers of society, especially for members of historically subordinated groups, convergence liberalism has not. With this article, we hope to start a discussion about convergence liberalism and its (in)ability to address group-based social inequalities. In particular, we aim to show (...) that given the core features of the viewandreal-world pluralism, the policies needed to secure gender equality and protect equal citizenship for women will not be justified. We make our case by considering various inequalities that are due to the gendered division of labor and potential convergence liberal responses. (shrink)

CONVERGENT REALISM AND ITS RIVALS (joining the realism-antirealism debates in modern Western philosophy of science). Rinat M. Nugayev, Kazan branch of Russian University of Cooperation. Abstract. Arguments pro and contra convergent realism are considered. It is argued that to meet the antirealist challenges convergent realism meta-programme hard core should be modified significantly . However well-known rivals of structural realism – entity realism (N. Cartwright and I. Hacking) and structural realism (John Worrall) – are mere revisionist versions of convergent realism based (...) on ad hoc modifications of the solutions first obtained within antirealist programme. (shrink)

Enactive and ecological approaches to cognitive science both claim a “mutuality” between agents and their environments – that they have a complementary nature and should be addressed as a single whole system. Despite this apparent agreement, each offers criticisms of the other on precisely this point – enactivists claiming that ecological psychologists over-emphasise the environment, while the complementary criticism, of agent-centred constructivism, is levelled by ecological psychologists at enactivists. In this paper I suggest that underlying the confusion between the two (...) approaches is the complexity of agency, which comes in different forms, at different scales or levels of analysis. Cognitive science has not theorised the relationship between these different forms in a sufficiently disciplined manner, and a task therefore remains of finding a way to map the complex territory of agency. (shrink)

One construal of convergent realism is that for each clear question, scientific inquiry eventually answers it. In this paper we adapt the techniques of formal learning theory to determine in a precise manner the circumstances under which this ideal is achievable. In particular, we define two criteria of convergence to the truth on the basis of evidence. The first, which we call EA convergence, demands that the theorist converge to the complete truth "all at once". The second, which (...) we call AE convergence, demands only that for every sentence in the theorist's language, there is a time at which the theorist settles the status of the sentence. The relative difficulties of these criteria are compared for effective and ineffective agents. We then examine in detail how the enrichment of an agent's hypothesis language makes the task of converging to the truth more difficult. In particular, we parametrize first-order languages by predicate and function symbol arity, presence or absence of identity, and quantifier prefix complexity. For nearly each choice of values of these parameters, we determine the senses in which effective and ineffective agents can converge to the complete truth on an arbitrary structure for the language. Finally, we sketch directions in which our learning theoretic setting can be generalized or made more realistic. (shrink)

A number of authors have pointed to “convergent evolution” as evidence for the central role of natural selection in shaping predictable trajectories of macroevolution. However, there are numerous conceptual and empirical difficulties that arise in broadly appealing to the frequency of homoplasy as evidence for a non-contingently constrained adaptational design space. Most important is the need to distinguish between convergent (externally constrained) and parallel (internally constrained) evolution, and to consider how the respective frequencies of these significantly different sources of homoplasy (...) affect a strong adaptationist view of life. In this paper, I critically evaluate Simon Conway Morris’s use of the homoplasy literature to support his argument for a non-contingent, counterfactually stable account of macroevolutionary pattern. In so doing, I offer a conception of parallelism which avoids the charge that it differs from convergence merely in degree and not in kind. I argue that although organisms sharing a homoplastic trait will also share varying degrees of homology, it is the underlying developmental homology with respect to the generators directly causally responsible for the homoplastic event that defines parallel evolution and non-arbitrarily distinguishes it from convergence. The notion of “screening-off” is used to distinguish the proximal generators of a homoplastic trait from its more distal genetic causes (such as a master control gene). (shrink)

Cognitive enhancements in the context of converging technologies. [Annals of the New York Academy of Sciences, Vol. 1093, pp. 201-207] [with Anders Sandberg] [pdf].

This study investigates the relationship among ethical philosophy, thinking style, and managerial ethical decision-making. Based on the premise that business ethics is a function of culture and time, we attempt to explore two important questions as to whether the national differences in managerial ethical philosophies remain over time and whether the relationship between thinking style and ethical decision-making is consistent across different national contexts. We conducted a survey on Korean managers’ ethical decision-making and thinking style and made a cross-cultural, cross-temporal (...) comparison with the results presented by previous studies that surveyed Korean and US managers with the same questionnaire at different points in time. Our analysis revealed that Korean managers have become more reliant on rule utilitarianism for ethical decision-making over the last two decades, which is dominantly used by US managers, corroborating our convergence hypothesis built on social contracts theory. However, as opposed to previous research, we found that managers with a balanced linear and nonlinear thinking style do not necessarily make more ethical decisions compared to those with a predominantly linear or nonlinear thinking style. This study contributes to international business ethics literature by presenting a theoretical framework that may explain the convergence of ethical philosophies employed by managers in different national contexts over time, and that the relationship between thinking style and managerial ethical decision-making may not be universal, but contingent on contextual factors. (shrink)

There is widespread agreement that the European Union is presently suffering from a lack of social justice. Yet there is significant disagreement about what the relevant injustice consists in: Federalists believe the EU can only remedy its justice deficit through the introduction of direct interpersonal transfers between people living in separate states. Intergovernmentalists believe the justice-related purpose of the EU is to enable states to cooperate fairly, and to remain internally just and democratic in the face of increased global pressure (...) on welfare states. I suggest that despite their fundamental differences, many of the most reasonable and prominent philosophical accounts of social justice in the EU nonetheless converge in their institutional prescriptions. In particular, they may each serve as a justificatory basis for introducing the European social minimum, an EU-wide income support scheme. (shrink)

In a recent paper, Belot argues that Bayesians are epistemologically flawed because they believe with probability 1 that they will learn the truth about observational propositions in the limit. While Belot’s considerations suggest that this result should be interpreted with some care, the concerns he raises can largely be defused by putting convergence to the truth in the context of learning from an arbitrarily large but finite number of observations.

We prove convergence laws for logics of the form equation image, where equation image is a properly chosen collection of generalized quantifiers, on very sparse finite random structures. We also study probabilistic collapsing of the logics equation image, where equation image is a collection of generalized quantifiers and k ∈ ℕ+, under arbitrary probability measures of finite structures.

The comparative method grants epistemic access to the biological past. Comparing lineages provides empirical traction on both hypotheses about particular lineages and models of trait evolution. Understanding this evidential role is important. Although philosophers have recently turned their attention to relations of descent, little work exists exploring the status of evidence from convergences. I argue that, where they exist, convergences play a central role in the confirmation of adaptive hypotheses. I focus on ‘analogous inferences’, show how such inferences ought to (...) be analysed and suggest three methods for strengthening their evidential weight. 1 Introduction2 Analogous Inferences2.1 Adaptive explanations and analogies2.2 Analogous inferences2.3 Scope, grain, and specificity3 Parallel Modelling, Integrated Explanations, and Convergent Modelling3.1 Parallel modelling3.2 Integrated explanations3.1 Convergent modelling4 Conclusion. (shrink)

This paper capitalizes on an institutional perspective to analyze corporate social responsibility (CSR) orientations in the Lebanese context. Specifically, the paper compiles a new theoretical framework drawing on a multi-level model of institutional flows by Scott (Institutions and organizations: ideas and interests, 2008 ) and the explicit/implicit CSR model by Matten and Moon (Acad Manag Rev 33(2):404–424, 2008 ). This new theoretical framework is then used to explore the CSR convergence versus divergence question in a developing country context. The (...) findings highlight the usefulness of the compiled multi-layered institutional framework and the varied nuances and profound insights it offers in analyzing CSR in context. They also suggest that a cosmetic level of global convergence in explicit CSR may materialize in light of mimetic isomorphic pressures, but that the path dependence hypothesis is indeed salient in light of national history trajectories and socio-politico configurations. The findings correspond most closely to patterns of CSR crossvergence, combining elements of both convergence and divergence, and reflecting in complex hybridized CSR expressions. The findings and their implications are presented and assessed. (shrink)

The rapid evolution of information, communication and entertainment technologies will transform the lives of citizens and ultimately transform society. This paper focuses on ethical issues associated with the likely convergence of virtual realities and social networks, hereafter VRSNs. We examine a scenario in which a significant segment of the world’s population has a presence in a VRSN. Given the pace of technological development and the popularity of these new forms of social interaction, this scenario is plausible. However, it brings (...) with it ethical problems. Two central ethical issues are addressed: those of privacy and those of autonomy. VRSNs pose threats to both privacy and autonomy. The threats to privacy can be broadly categorized as threats to informational privacy, threats to physical privacy, and threats to associational privacy. Each of these threats is further subdivided. The threats to autonomy can be broadly categorized as threats to freedom, to knowledge and to authenticity. Again, these three threats are divided into subcategories. Having categorized the main threats posed by VRSNs, a number of recommendations are provided so that policy-makers, developers, and users can make the best possible use of VRSNs. (shrink)

Bryan Norton 's convergence hypothesis, which predicts that nonanthropocentric and human-based philosophical positions will actually converge on long-sighted, multi-value environmental policy, has drawn a number of criticisms from within environmental philosophy. In particular, nonanthropocentric theorists like J. Baird Callicott and Laura Westra have rejected the accuracy of Norton 's thesis, refusing to believe that his model's contextual appeals to a plurality of human and environmental values will be able adequately to provide for the protection of ecological integrity. These theoretical (...) criticisms of convergence, however, have made no real attempt to engage the empirical validity of the hypothesis, the dimension that Norton clearly takes to be the centerpiece of his project. Accordingly, the present paper attempts to provide an empirical analysis of the convergence argument, by means of a study of the Vermont public's environmental commitments and their attitudes toward national forest policy. Our findings support a generalized version of Norton 's thesis, and lead us to suggest that environmental philosophers should try to be more inclusive and empirically minded in their discussions about public moral claims regarding nature. (shrink)

Converging Technologies, Shifting Boundaries Content Type Journal Article Pages 213-216 DOI 10.1007/s11569-009-0075-x Authors Tsjalling Swierstra, University of Twente Enschede Netherlands Marianne Boenink, University of Twente Enschede Netherlands B. Walhout, Rathenau Institute The Hague Netherlands R. Van Est, Rathenau Institute The Hague Netherlands Journal NanoEthics Online ISSN 1871-4765 Print ISSN 1871-4757 Journal Volume Volume 3 Journal Issue Volume 3, Number 3.

The convergence hypothesis asserts that, if one takes the full range of human values—present and future—into account, one will choose a set of policies that can also be accepted by an advocate of a consistent and reasonable nonanthropocentrism. Brian Steverson has attacked this hypothesis from a surprising direction. He attributes to deep ecologists the position that nonhuman nature has intrinsic value, interprets this position to mean that no species could ever be allowed to go extinct, and proceeds to show (...) that my commitment to contextualism prohibits me from advocating the protection of species universally. In response, I show, by reference to recent scientific findings, how difficult it is to defend species preservation in all situations. In particular, I argue that Steverson’s appeal to a possible world in which we have nearly complete biological knowledge misses the point of the convergence hypothesis. It is an empirical hypothesis, with significant indirect, and some direct, evidence to support it. Although it is a falsifiable hypothesis about realworld policies, it cannot be falsified by a contrary-to-fact case. (shrink)

Bayesians since Savage (1972) have appealed to asymptotic results to counter charges of excessive subjectivity. Their claim is that objectionable differences in prior probability judgments will vanish as agents learn from evidence, and individual agents will converge to the truth. Glymour (1980), Earman (1992) and others have voiced the complaint that the theorems used to support these claims tell us, not how probabilities updated on evidence will actually}behave in the limit, but merely how Bayesian agents believe they will behave, suggesting (...) that the theorems are too weak to underwrite notions of scientific objectivity and intersubjective agreement. I investigate, in a very general framework, the conditions under which updated probabilities actually converge to a settled opinion and the conditions under which the updated probabilities of two agents actually converge to the same settled opinion. I call this mode of convergence deterministic, and derive results that extend those found in Huttegger (2015b). The results here lead to a simple characterization of deterministic convergence for Bayesian learners and give rise to an interesting argument for what I call strong regularity, the view that probabilities of non-empty events should be bounded away from zero. (shrink)

Determining whether a homoplastic trait is the result of convergence or parallelism is central to many of the most important contemporary discussions in biology and philosophy: the relation between evolution and development, the importance of constraints on variation, and the role of contingency in evolution. In this article, I show that two recent attempts to draw a black-or-white distinction between convergence and parallelism fail, albeit for different reasons. Nevertheless, I argue that we should not be afraid of gray (...) areas: a clarified version of S. J. Gould's earlier account, based on a separation of underlying developmental mechanisms from the realized trait, still represents a useful approach. (shrink)

GREGORY MIKKELSON | : Animal and environmental ethics should converge on the following three value judgments: natural ecosystems generally involve more good than harm; predation in nature tends to yield positive net benefits; and, at least on a global scale, livestock farming is destroying more value than it is creating. But the ecocentric criteria of environmental ethics and the sentientist criteria of animal ethics may have divergent implications for capitalism’s main effect on the world: the collapse of wild nature due (...) to explosive growth in the human economy. Sentientism risks counting this effect as a net gain, whereas ecocentrism surely rates it a massive net loss. While supporting the above claims, I show how they fit into a larger argument in favour of the broader, ecocentric value theory of environmental ethics and against the narrower, sentientist axiology of animal ethics. | : Les éthiques animale et environnementale devraient converger vers les trois jugements de valeur suivants: les écosystèmes naturels impliquent généralement plus de bien que de mal, la prédation dans la nature a tendance à produire des avantages nets positifs et, au moins à l’échelle mondiale, l’élevage animal détruit plus de valeur qu’il n’en crée. Mais les critères écocentriques de l’éthique environnementale et les critères de l’éthique animale fondés sur la sentience pourraient avoir des implications divergentes sur l’effet principal du capitalisme sur le monde: l’effondrement de la nature sauvage dû à la croissance explosive de l’économie humaine. Le sentientisme risque de considérer cet effet comme un gain net, alors que l’écocentrisme le considère sûrement comme une perte nette massive. Tout en soutenant les affirmations ci-dessus, je montre comment elles s’intègrent dans un argument plus large en faveur d’une théorie de la valeur écocentrique plus englobante propre à l’éthique environnementale et contre l’axiologie sentientiste plus étroite de l’éthique animale. (shrink)

Over the course of human history there appears to have been a global shift in moral values towards a broadly ‘liberal’ orientation. Huemer argues that this shift better accords with a realist than an antirealist metaethics: it is best explained by the discovery of mind-independent truths through intuition. In this article I argue, contra Huemer, that the historical data are better explained assuming the truth of moral antirealism. Realism does not fit the data as well as Huemer suggests, whereas antirealists (...) have underappreciated resources to explain the relevant historical dynamics. These resources include an appeal to socialization, to technological and economical convergences, to lessons learned from history, to changes induced by consistency reasoning and to the social function of moral norms in overcoming some of the cooperation problems that globalizing societies face. I point out that the realist’s explanans has multiple shortcomings, that the antirealist’s explanans has several explanatory virtues, and conclude that the latter provides a superior account of the historical shift towards liberal values. (shrink)

I will argue that emergence is an empirically plausible and unique philosophical/ scientific framework for bridging the ontological gap and the explanatory gap with respect to phenomenal consciousness. On my view the ontological gap is the gap between fundamental ingredients/parts of reality that are not conscious and beings/wholes that are conscious. The explanatory gap is the current lack of a philosophical/scientific theory that explains how non-conscious parts can become conscious wholes. Both gaps are of course conceptual as well as empirical (...) in nature. Section I will be devoted to these issues as well as providing other general criteria for an account of consciousness. In section II, different types of emergence will be defined in the context of a more general taxonomy of reduction and emergence. Emergentism about consciousness becomes much more plausible when we see that the ancient ‘atomism’ that drives physicalism on one end, and fundamental property dualism on the other, is probably false. Backing up this claim will be the primary burden of section III. In section IV I will conjecture that phenomenal consciousness is mereologically and perhaps nomologically emergent from neurochemical/ quantum processes, just as many other properties are so emergent. In section V I defend my view of emergence against the objections that: it cannot bridge the explanatory/ontological gap between matter and consciousness and it cannot account for the causal efficacy of consciousness in itself. Finally, in section VI, there is speculation about where all of this might take us in the future. (shrink)

Individual differences in convergent and divergent thinking may uniquely explain variation in analogical reasoning ability. Across two studies we investigated the relative influences of divergent and convergent thinking as predictors of verbal analogy performance. Performance on both convergent thinking and divergent thinking uniquely predicted performance on both analogy selection and analogical generation tasks. Moreover, convergent and divergent thinking were predictive above and beyond creative behaviours in Study 1 and a composite measure of crystallised intelligence in Study 2. Verbal analogies in (...) Study 2 also varied in semantic distance, with results demonstrating divergent thinking as a stronger predictor of analogy generation for semantically far than for semantically near analogies. Results thus further illuminate the link between analogical reasoning and creative cognition by demonstrating convergent and di.. (shrink)

This paper has two goals. First, it aims to investigate the empirical assumptions of a recent proposal due to Olsson (forthcoming), according to which the generality problem for process-reliabilism can be approached by recruiting patterns and models from the basic-level research in cognitive psychology. Second, the paper attempts to generalize findings in the basic-level literature pertaining to concrete nouns to the abstract verbs that denote belief-forming processes. I will demonstrate that verbs for belief-forming processes exhibit the kind of linguistic (...) class='Hi'>convergence that is characteristic of basic-level words, although these words are not neatly taxonomically organized or associated with large feature sets. Next, I will evaluate and partially validate Olsson's proposal in light of these findings. I will provide some discussion of possible explanations of the results are discussed, as well as the impact these results have for structural models of basic-level advantage, and for the feasibility of the explanatory strategy that these models presuppose. Finally, I will conclude that even though no particular model is compromised by these results, they call into question the underlying explanatory strategy by highlighting its parochial nature. (shrink)

The convergence hypothesis asserts that, if one takes the full range of human values—present and future—into account, one will choose a set of policies that can also be accepted by an advocate of a consistent and reasonable nonanthropocentrism. Brian Steverson has attacked this hypothesis from a surprising direction. He attributes to deep ecologists the position that nonhuman nature has intrinsic value, interprets this position to mean that no species could ever be allowed to go extinct, and proceeds to show (...) that my commitment to contextualism prohibits me from advocating the protection of species universally. In response, I show, by reference to recent scientific findings, how difficult it is to defend species preservation in all situations. In particular, I argue that Steverson’s appeal to a possible world in which we have nearly complete biological knowledge misses the point of the convergence hypothesis. It is an empirical hypothesis, with significant indirect, and some direct, evidence to support it. Although it is a falsifiable hypothesis about realworld policies, it cannot be falsified by a contrary-to-fact case. (shrink)

We generalize the Bolzano-Weierstrass theorem on ideal convergence. We show examples of ideals with and without the Bolzano-Weierstrass property, and give characterizations of BW property in terms of submeasures and extendability to a maximal P-ideal. We show applications to Rudin-Keisler and Rudin-Blass orderings of ideals and quotient Boolean algebras. In particular we show that an ideal does not have BW property if and only if its quotient Boolean algebra has a countably splitting family.

The paper analyses Benardete's paradox of the gods from a more general perspective (the convergence approach) than several of the most important proposals made to date, but in close relation (and sharp contrast) with them. The new theory, based on the notion of limit, is systematically applicable in different possible scenarios involving a denumerable infinity of objects. In particular, it reveals in what way ω-consistency can be compromised in an otherwise consistent description of such "infinitary" situations.