BackgroundEverybody has the right to decide whether to receive specific medical treatment or not and to provide their free, prior and informed consent to do so. As dementia progresses, people with Alzheimer’s dementia (PwAD) can lose their capacity to provide informed consent to complex medical treatment. When the capacity to consent is lost, the autonomy of the affected person can only be guaranteed when an interpretable and valid advance directive exists. Advance directives are not yet common in Germany, and their (...) validity is often questionable. Once the dementia diagnosis has been made, it is assumed to be too late to write an advance directive. One approach used to support the completion of advance directives is ‘Respecting Choices’®—an internationally recognised, evidence-based model of Advance Care Planning (ACP), which, until now, has not been evaluated for the target group of PwAD. This study’s aims include (a) to investigate the proportion of valid advance directives in a memory clinic population of persons with suspected AD, (b) to determine the predictors of valid advance directives, and (c) to examine whether the offer of ACP can increase the proportion of valid advance directives in PwAD.MethodWe intend to recruit at leastN = 250 participants from two memory clinics in 50 consecutive weeks. Of these, the first 25 weeks constitute the baseline phase (no offer of ACP), the following 25 weeks constitute the intervention phase (offer of ACP). The existence and validity of an advance directive will be assessed twice (before and after the memory clinic appointment). Moreover, potential predictors of valid advance directives are assessed.DiscussionThe results of this study will enhance the development of consent procedures for advance directives of PwAD based on the ACP/Respecting Choices (R) approach. Therefore, this project contributes towards increasing the autonomy and inclusion of PwAD and the widespread acceptance of valid advance directives in PwAD.Trial RegistrationDRKS, DRKS00026691, registered 15th of October 2021,https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00026691. (shrink)

BackgroundThe UN Convention on the Rights of Persons with Disabilities, and the reformed guardianship law in Germany, require that persons with a disability, including people with dementia in Alzheimer’s disease (PwAD), are supported in making self-determined decisions. This support is achieved through communication. While content-related communication is a deficit of PwAD, relational aspects of communication are a resource. Research in supported decision-making (SDM) has investigated the effectiveness of different content-related support strategies for PwAD but has only succeeded in improving understanding, (...) which, although one criterion of capacity to consent, is not sufficient to ensure overall capacity to consent. The aim of the ‘spatial intervention study’ of the DECIDE project is to examine an innovative resource-oriented SDM approach that focuses on relational aspects. We hypothesise that talking to PwAD in their familiar home setting (as opposed to a clinical setting) will reduce the complexity of the decision-making process and enhance overall capacity to consent. MethodsPeople with a suspected or confirmed diagnosis of dementia in Alzheimer’s disease will be recruited from two memory clinics (N = 80). We will use a randomised crossover design to investigate the intervention effect of the decision-making place on capacity to consent. Besides reasoning capacity, which is part of overall capacity to consent and will be the primary outcome, various secondary outcomes (e.g., other aspects of capacity to consent, subjective task complexity, decisional conflict) and suspected moderating or mediating variables (e.g., meaning of home, demographic characteristics) will be assessed.DiscussionThe results of the study will be used to develop a new SDM strategy that is based on relational resources for PwAD. If a change in location achieves the anticipated improvement in capacity to consent, future research should focus on implementing this SDM strategy in a cost-effective manner in clinical practice.Trial registration: DRKS00030799. (shrink)

Die Traume und Visionen aus der antiken Literatur, die die romischen Kaiser und ihr Umfeld betreffen, wurden bislang noch nicht auf ihre Bedeutung hin untersucht. Die vorliegende Arbeit schliesst diese Lucke, indem sie das Material von Caesar bis Maurikios analysiert. Dabei ergeben sich spezifische Motive, die besonders mit Traumen und Visionen verbunden sind: Geburt und Kindheit, Verheissung der Herrschaft, Erringung eines Sieges und gottliches Eingreifen, Ausubung der Herrschaft, besondere Befahigung und gottliche Begunstigung, nahendes Ende. Durch den breiten zeitlichen Ansatz gelingt (...) es, fur die Motive unterschiedliche Schwerpunkte auszumachen: Sie stehen alle in der Spannung zwischen einer gezielten Verbreitung zur Schaffung von Akzeptanz und der Literarisierung durch die antiken Autoren. Fur die Behandlung der Thematik waren nicht nur definitorische Vorarbeiten notwendig, sondern auch der mentale Horizont moglicher Rezipienten musste durch die Interpretation von Inschriften, Papyri und Selbstaussagen antiker Autoren in den Blick genommen werden. (shrink)

Wie gehen wir mit Gewordenem um, wie bedingt das Gewordene unser Handeln? Wie interagieren das Gewordene und wir? Das sind grundlegende Fragen unseres Alltags, die in diesem Buch zum Prinzip einer kulturwissenschaftlichen Methode - der Signifikanten-Interaktionsanalyse - erhoben werden. Die Analyseobjekte der Signifikanten-Interaktionsanalyse (SIA) werden als Formation verstanden, die aus materiellen, perzeptiven, emotionalen, sprachlichen Signifikanten bestehen. SIgnifikanten verweisen aufeinander und bedingen sich relational, so dass fur sich stehende, eigentlich bedeutungslose Signifikanten in ihrem relationalen Verbund Aussagekraft entfalten. JEde Aussage beruht auf (...) einer Interaktion mehreren Signifikanten. JEder Signifikant wird als potentieller Aktant verstanden. MIt der SIA lassen sich die Interaktionen zwischen Signifikanten auf formalisierte Aussagen reduzieren. DIes geschiet mittels dreier Interaktionsmodi - Belassen, Anpassen oder Beseitigen -, die aus dem Umgang mit Gewordenem abgeleitet werden. DIe formalisierten Aussagen konnen Werthaltung, Wertschopfung, Wertvernichtung, identitat, Integritat, Einzigartigkeit und Differenz von Signifikanten erfassen. (shrink)

The ideal of value free science states that the justification of scientific findings should not be based on non-epistemic (e.g. moral or political) values. It has been criticized on the grounds that scientists have to employ moral judgements in managing inductive risks. The paper seeks to defuse this methodological critique. Allegedly value-laden decisions can be systematically avoided, it argues, by making uncertainties explicit and articulating findings carefully. Such careful uncertainty articulation, understood as a methodological strategy, is exemplified by the current (...) practice of the Intergovernmental Panel on Climate Change (IPCC). (shrink)

How does microbiota research impact our understanding of biological individuality? We summarize the interdisciplinary summer school on "Microbiota, Symbiosis and Individuality: Conceptual and Philosophical Issues" (July 2019), which was supported by a European Research Council starting grant project "Immunity, DEvelopment, and the Microbiota" (IDEM). The summer school centered around interdisciplinary group work on four facets of microbiota research: holobionts, individuality, causation, and human health. The conceptual discussion of cutting-edge empirical research provided new insights into microbiota and highlights the value of (...) incorporating into meetings experts from other disciplines, such as philosophy and history of science. (shrink)

The aim of this paper is to develop and defend an Attentional View of bodily awareness, on which attention is necessary for bodily awareness. The original formulation of the Attentional View is due to Marcel Kinsbourne. First, I will show that the Attentional View of bodily awareness as formulated by Kinsbourne is superior to other accounts in the literature for characterizing the relationship between attention and bodily awareness. Kinsbourne’s account is the only account in the literature so far which can (...) accommodate key neurological diseases such as personal neglect. Second, when I consider Kinsbourne’s view in more detail, I will argue that Kinsbourne’s Attentional View faces problems because it is too reductive. Kinsbourne deviates from the standard taxonomy on which there is a body schema and a body image. Instead he reduces the body image to the neural representation of the body in the somatosensory cortex, the body schema and attentional shifts. I will present two challenges to Kinsbourne’s view which demonstrate that Kinsbourne’s reduction of the body image is unsuccessful. Finally, I will present a revised version of the Attentional View that is both empirically adequate and philosophically satisfactory. (shrink)

By means of multi-agent simulations, it investigates the truth and consensus-conduciveness of controversial debates. The book brings together research in formal epistemology and argumentation theory.

Advancements in scientific research and technological development influence the practice of organ donation and organ transplantation. Many SRTD governance discourses put forward the need for multi-stakeholder engagements. We posit that staff employed by organ procurement organizations have a stake in the discussions around SRTD applicable to ODOT because SRTD is one factor that shapes ODOT and because staff are involved in ODOT education and awareness raising while acting as a nexus between donors and the public. Therefore, we performed a content (...) analysis of eight semi-structured in-depth interviews with staff of one Canadian organ procurement organization to ascertain the views that staff had on the use of SRTD in ODOT in general; specific SRTD envisioned to be used in the future in ODOT namely xenotransplantation, embryonic and non-embryonic stem cells, cloning, bionic/artificial organs, and 3-D printed organs; and the emerging ability of SRTD applicable in ODOT to enhance bodily abilities beyond the normal. We found that staff had views on the topics covered in this study, and staff acknowledged that they do not possess sufficient knowledge to be able to engage meaningfully in governance discussions of the SRTD covered and to educate others on these SRTDs. We recommend implementing continuous education for the staff on SRTD envisioned to be applied in ODOT as a capacity-building measure to enable their participation in the governance discussions of these SRTDs and to enhance their ability to educate others on ODOT applicable SRTD. (shrink)

Its author was a Carthusian monk. Offered here is a translation, with annotation and an important introduction, of the four books on natural philosophy, the predecessor of modern science.

In this article, I engage with three overlapping expressions of the increasingly postsecular cast of social and cultural theory. These currents — guided, respectively, by genealogical critique, neo-vitalist social philosophy and postcolonial anti-historicism — seek to problematize the frame of previous radical theorizing by exposing definite connections between the epistemological and political levels of secular understanding, and by assuming that the nature of those linkages counts heavily against secularism. As well as offering an interpretive overview of these contributions, I suggest (...) that they are traversed by a number of conceptual flaws and inconsistencies. The tensions, I argue, stem from the fact that in spite of appearing to be driven by a strong anti-secular thrust, these positionings remain thoroughly intra-secular in character. This needs to be more emphatically acknowledged if the ‘postsecular turn’ is to be productive. (shrink)

When does a human being begin to exist? Barry Smith and Berit Brogaard have argued that it is possible, through a combination of biological fact and philosophical analysis, to provide a definitive answer to this question. In their view, a human individual begins to exist at gastrulation, i. e. at about sixteen days after fertilization. In this paper we argue that even granting Smith and Brogaard's ontological commitments and biological assumptions, the existence of a human being can be shown to (...) begin much earlier, viz., with fertilization. Their interpretative claim that a zygote divides immediately into two substances and therefore ceases to exist is highly implausible by their own standards, and their factual claim that there is no communication between the blastomeres has to be abandoned in light of recent embryological research. (shrink)

In the debate about the moral status of human embryos, it is not always clear which arguments are actually disputed. This book offers students and researchers, but also laypersons interested in the current debate, the opportunity to inform themselves about the current state of discussion and to learn about the most important arguments in a clear and concise form. These arguments are as follows: Since embryos as members of the species homo sapiens sapiens are human beings, they possess dignity (species (...) argument); embryos develop continuously, i.e. without morally relevant incisions, into adult human beings possessing dignity (continuum argument); embryos are identical with adult human beings possessing dignity (identity argument); embryos have the potential to become human beings, and this potential is without restriction worth protecting (potentiality argument). These arguments are each represented by a pro position and a contra position and defended or criticized. In an accompanying contribution by the editors, the four arguments in context are reconstructed, evaluated, and supported by new arguments. (shrink)

Gregor Moder’s Hegel and Spinoza: Substance and Negativity is a lively entry into current debates concerning Hegel, Spinoza, and their relation. Hegel and Spinoza are two of the most influential philosophers of the modern era, and the traditions of thought they inaugurated have been in continuous dialogue and conflict ever since Hegel first criticized Spinoza. Notably, eighteenth- and nineteenth-century German Idealists aimed to overcome the determinism of Spinoza’s system by securing a place for the freedom of the subject within (...) it, and twentieth-century French materialists such as Althusser and Deleuze rallied behind Spinoza as the ultimate champion of anti-Hegelian materialism. This conflict, or mutual rejection, lives on today in recent discussions about materialism. Contemporary thinkers either make a Hegelian case for the productiveness of concepts of the negative, nothingness, and death, or in a way that is inspired by Spinoza they abolish the concepts of the subject and negation and argue for pure affirmation and the vitalistic production of differences. Hegel and Spinoza traces the historical roots of these alternatives and shows how contemporary discussions between Heideggerians and Althusserians, Lacanians and Deleuzians are a variation of the disagreement between Hegel and Spinoza. Throughout, Moder persuasively demonstrates that the best way to read Hegel and Spinoza is not in opposition or contrast but together: as Hegel and Spinoza. (shrink)

The paper deals with the question of the structure of knowledge and the precise relationship between propositional "knowledge that" and dispositional "knowledge how." In the first part of my essay, I provide an analysis of the term 'knowing how' and argue that the usual alternatives in the recent epistemological debate – knowing how is either a form of propositional or dispositional knowledge – are misleading. In fact it depends on the semantic and pragmatic context of the usage of this term (...) whether 'knowing how' refers to a type of dispositional knowledge, to propositional knowledge, or to a hybrid form of both. Only in the first case, can one say that dispositional know how cannot be reduced to any form of propositional knowledge. Yet, this case is the most interesting one to consider in the investigation of the nature of knowledge, if one assumes that knowing that p presupposes "having found out that p." Having found something out, however, presupposes certain acts of epistemic inquiry and corresponding epistemic abilities. Examined more carefully, it is shown that the dispositional knowledge-how is a necessary condition for propositional knowledge-that, hence propositional knowledge-that is a species of the dispositional knowledge-how. Accordingly, dispositional knowledge has to be understood as being at the very core of our notion of knowledge, including propositional knowledge. (shrink)

This chapter goes into crucial questions related to the impact of technology on our privacy, our personal identity and our social relationships. While technology often seems extremely convenient in helping us remember things and share our experiences with others, this episode shows that it can have highly undesirable side‐effects as well. Technologies like the grain put inevitable pressures not only on privacy and trust but also on our ability to create and tell our life stories. In this chapter, we show (...) how getting to know each other's entire history and achieving full transparency about ourselves and others will likely destroy crucial and valuable aspects of our social lives. (shrink)

This commentary challenges Railton’s claim that the affective system is the key source of control of action. Whilst the affective system is important for understanding how acting for a reason is possible, we argue that there are many levels of control of action and adaptive behaviour and that the affective system is only one source of control. Such a model seems to be more in line with the emerging picture from affective and movement neuroscience.

We give a construction of the square principle by means of forcing with finite conditions.

Menschliches Bewusstein findet sich immer schon als verkörpertes vor. Diese Einsicht steht im Zentrum des kognitionswissenschaftlichen Paradigmas der embodied cognition: Der Geist ist „innig an einen Körper gebunden und innig in seine Welt eingebettet“. Der Geist ist kein in einem vermeintlichen Innenraum verborgenes und von der Welt weitgehend gelöstes neuronales Netzwerk, sondern als eine dynamische Weise des leiblichen In-der-Welt-Seins zu verstehen. Mit der Philosophie der Verkörperung gewinnt die Theologie einen Gesprächspartner, der ihr hilft, ihre eigene Körpervergessenheit zu überwinden und Anschluss (...) an die biblischen Anthropologien zu gewinnen. Denn diese verstehen die menschliche Existenz grundsätzlich als leiblich verfasst. Aktuelle Forschungen an der Schnittstelle von Neurobiologie und Philosophie einerseits und Exegese und Systematik andererseits lassen sich so in einen spannenden Diskurs bringen, an dessen Ende eine neue interdisziplinäre Anthropologie stehen könnte. Der vorliegende Band eröffnet diesen Diskurs mit Beiträgen aus Philosophie, Exegese und Systematischer Theologie. (shrink)

As climate policy decisions are decisions under uncertainty, being based on a range of future climate change scenarios, it becomes a crucial question how to set up this scenario range. Failing to comply with the precautionary principle, the scenario methodology widely used in the Third Assessment Report of the International Panel on Climate Change (IPCC) seems to violate international environmental law, in particular a provision of the United Nations Framework Convention on Climate Change. To place climate policy advice on a (...) sound methodological basis would imply that climate simulations which are based on complex climate models had, in stark contrast to their current hegemony, hardly an epistemic role to play in climate scenario analysis at all. Their main function might actually consist in ‘foreseeing future ozone-holes’. In order to argue for these theses, I explain first of all the plurality of climate models used in climate science by the failure to avoid the problem of underdetermination. As a consequence, climate simulation results have to be interpreted as modal sentences, stating what is possibly true of our climate system. This indicates that climate policy decisions are decisions under uncertainty. Two general methodological principles which may guide the construction of the scenario range are formulated and contrasted with each other: modal inductivism and modal falsificationism. I argue that modal inductivism, being the methodology implicitly underlying the third IPCC report, is severely flawed. Modal falsificationism, representing the sound alternative, would in turn require an overhaul of the IPCC practice. (shrink)

Frank Knight (1921) famously distinguished the epistemic modes of certainty, risk, and uncertainty in order to characterize situations where deterministic, probabilistic or possibilistic foreknowledge is available. Because our probabilistic knowledge is limited, i.e. because many systems, e.g. the global climate, cannot be described and predicted probabilistically in a reliable way, Knight's third category, possibilistic foreknowledge, is not simply swept by the probabilistic mode. This raises the question how to justify possibilistic predictionsincluding the identication of the worst case. The development of (...) such a modal methodology is particularly vital with respect to predictions of climate change. I show that a methodological dilemma emerges when possibilistic predictions are framed in traditional terms and argue that a more nuanced conceptual framework, distinguishing dierent types of possibility, should be used in order to convey our uncertain knowledge about the future. The new conceptual scheme, however, questions the applicability of standard rules of rational decision-making, thus generating new challenges. (shrink)

Wo Meinungen aufeinanderprallen, um Verständnis geworben und Überzeugungsarbeit geleistet wird, sind Begründungen nicht weit. Für jede Überzeugung gibt es immer ein, zwei Gründe, die mit Gegengründen konfrontiert und, im Gegenzug, mit weiteren Überlegungen verteidigt werden usw. usf. Schnell sind wir verwirrt und drohen, ohne uns der "Grammatikregeln" vernünftigen Argumentierens zu besinnen, nicht mehr durchzublicken. Die Theorie dialektischer Strukturen leistet einen Beitrag zur Grammatik vernünftigen Argumentierens. Sie stellt Begriffe und Verfahren bereit, um Fragen, die sich angesichts einer komplexen Argumentation stellen können, (...) zu beantworten: Wie beziehen sich die einzelnen Argumente der Debatte aufeinander? Welche Positionen vertreten die verschiedenen Proponenten, und wie lassen sich diese bewerten? Wie gut ist die zentrale These der Kontroverse alles in allem begründet? Ist die und die Argumentationshandlung angesichts des Debattenstandes tatsächlich zweckmäßig und rational? Liegt hier eine zirkuläre - und damit fehlerhafte - Argumentation vor? Die klassische Logik, die sogenannte informal logic und argumentationstheoretische Ansätze der Künstlichen Intelligenz bilden Anknüpfungspunkte der Theorie dialektischer Strukturen. Exemplarisch werden die entwickelten argumentationstheoretischen Methoden zur Analyse umfangreicher philosophischer Kontroversen eingesetzt. (shrink)

Based on a unique data set on US direct microloans, we study the funding determinants of interest-free peer-to-peer crowdlending aimed at borrowers in the US. By performing logistic regressions on funding success and Tobit regressions on the reversed funding time, the existence of a social underwriting by a third-party trustee and information in the description texts fostering the investors’ trust are shown to be the main predictors of successful funding. Regarding social impact, the possibility to empower women and groups of (...) borrowers appeals to the investors, whereas empowerment of the family or community beyond the borrowers themselves appears to remain unappreciated. When examining the vulnerability of the borrowers as a predictor, the results manifest differences amongst the attitudes of the investors towards social impact. In the subsample of non-endorsed loans, the investors appear to prefer to support borrowers with an immigration background. In contrast, this is not the case with endorsed loans. (shrink)

Zusammenfassung Fußballfans bilden eine eigene Subkultur, die sich selbst noch einmal im Fußballstadion von den anderen Zuschauern als soziale Gruppierung unterscheidet. Ausgehend von Schütz’s Lebensweltbegriff wird die Fankultur als ein geschlossenes Sinngebiet mit einem eigenen Realitätsakzent sowie einem besonderen Erkenntnis- und Erlebnisstil aufgefasst. Der vorliegende Beitrag analysiert die konstitutiven Elemente dieser fanspezifischen Lebenswelt am Beispiel der Fangemeinschaft des FC Energie Cottbus. Die dort beobachteten Rituale, symbolischen Darstellungsmittel, Selbstinszenierungen und Kollektivausdrücke stellen die Konstitutionsbedingungen für einen gemeinsamen Wirklichkeitsentwurf dar. Es wird gezeigt, (...) dass es der Fankultur, trotz der ständigen Spielerwechsel und fortschreitenden Ökonomisierung im Fußball, keineswegs an Vielfalt und identitätsstiftenden Orientierungen fehlt. (shrink)

Zusammenfassung Fußballfans bilden eine eigene Subkultur, die sich selbst noch einmal im Fußballstadion von den anderen Zuschauern als soziale Gruppierung unterscheidet. Ausgehend von Schütz’s Lebensweltbegriff wird die Fankultur als ein geschlossenes Sinngebiet mit einem eigenen Realitätsakzent sowie einem besonderen Erkenntnis- und Erlebnisstil aufgefasst. Der vorliegende Beitrag analysiert die konstitutiven Elemente dieser fanspezifischen Lebenswelt am Beispiel der Fangemeinschaft des FC Energie Cottbus. Die dort beobachteten Rituale, symbolischen Darstellungsmittel, Selbstinszenierungen und Kollektivausdrücke stellen die Konstitutionsbedingungen für einen gemeinsamen Wirklichkeitsentwurf dar. Es wird gezeigt, (...) dass es der Fankultur, trotz der ständigen Spielerwechsel und fortschreitenden Ökonomisierung im Fußball, keineswegs an Vielfalt und identitätsstiftenden Orientierungen fehlt. (shrink)

Limits of the Conversation about Forms. Types of Knowledge and Necessity of Forms in Plato's "Parmenides". - Forms (ideas) are among the things that Plato is serious about. But about these things he says in his "Seventh Letter": "There neither is nor ever will be a treatise of mine on the subject." (341c, transl. J. Harward). Plato's statement suggests the question, why one does not and never can do justice to the Platonic forms by means of a written text about (...) the forms. Another big question of Plato research is whether the conversations documented in the Platonic dialogues are also affected by this verdict. This paper aims to provide, as far as possible, newly substantiated answers to these two questions. To this end, the systematic limits of the discussion about forms, which are particularly evident in Plato's dialogue "Parmenides", are examined in eight steps: First, two types of knowledge are presented that play an important systematic role in Plato's philosophy with regard to the limits of conversation: knowledge-how (practical knowledge) and knowledge-that (propositional knowledge) (I). Then the Socratic model of these two types of knowledge is interpreted, which is drafted in the tenth book of the "Republic". This model uses the example of bridle, bridlemaker and rider to explain the primacy of practical knowledge and the limits of propositional knowledge (II). Subsequently, it will be shown how the dialogues "Republic" and "Parmenides" are connected with each other in content and form (III). The gradation of the two types of knowledge, which is indicated by the motifs of the bridle and the horse on the image level of the "Parmenides", proves to be the structure that systematically underlies the structure of the entire dialogue (IV). It also makes clear why the conversation about the forms in the first part of the "Parmenides" has to fail (V). The assumption that the two parts of the "Parmenides" express two different types of knowledge in dealing with forms is supported by the results of a logical analysis of the last defence of the acceptance of forms (135b-c). This analysis shows why, for reasons of principle, it is impossible to speak adequately about forms (VI). Forms have the function of being presuppositions of 'talking about something'. Thus forms are always presupposed in conversation when one talks about them, and thus elude appropriate discussion in conversation (VII). That this is not only a methodical insight of the Platonic Parmenides, but can also be attributed to Plato himself, is demonstrated by the concluding reinterpretation of the central sentence of the critique of writing in Plato's "Seventh Letter". It will become apparent that, contrary to the now widespread view of the representatives of the Tübingen school, philosophical and also good philological reasons speak for the fact that Plato related his criticism only to the communicability of forms through treatises, i.e. tract-like writings (VIII). (shrink)

Climate models don’t give us probabilistic forecasts. To interpret their results, alternatively, as serious possibilities seems problematic inasmuch as climate models rely on contrary-to-fact assumptions: why should we consider their implications as possible if their assumptions are known to be false? The paper explores a way to address this possibilistic challenge. It introduces the concepts of a perfect and of an imperfect credible world, and discusses whether climate models can be interpreted as imperfect credible worlds. That would allow one to (...) use models for possibilistic prediction and salvage widespread scientific practice. (shrink)