This paper poses a problem for Lewis’ Principal Principle in a subjective Bayesian framework: we show that, where chances inform degrees of belief, subjective Bayesianism fails to validate normal informal standards of what is reasonable. This problem points to a tension between the Principal Principle and the claim that conditional degrees of belief are conditional probabilities. However, one version of objective Bayesianism has a straightforward resolution to this problem, because it avoids this latter claim. The problem, (...) then, offers some support to this version of objective Bayesianism. (shrink)

This paper poses a problem for Lewis’ Principal Principle in a subjective Bayesian framework: we show that, where chances inform degrees of belief, subjective Bayesianism fails to validate normal informal standards of what is reasonable. This problem points to a tension between the Principal Principle and the claim that conditional degrees of belief are conditional probabilities. However, one version of objective Bayesianism has a straightforward resolution to this problem, because it avoids this latter claim. The problem, (...) then, offers some support to this version of objective Bayesianism. (shrink)

How are we to understand the use of probability in Popper’s corroboration function? Popper says logically, but this raises a problem that becomes apparent when his views on logical probability are compared with those of Keynes. Specifically, Popper does not make it clear how we could have access to, or even calculate, probability values in a logical sense. For first, he would likely want to deny the Keynesian distinction between primary and secondary propositions, and the underlying notion of knowledge-by-acquaintance with (...) Neo-Platonic entities. Second, he would presumably reject not only the notion of non-numerical probabilities, but also the claim that the principle of indifference is aught other than a heuristic, given paradoxes such as Bertrand’s. An attempt might be made to solve this problem by appeal to semantic or possible world analyses over the relative truth-values of statements, but this seems to fail due to concerns relating to infinity: if the set of possible worlds in which p is true is infinite, and the set of possible worlds in which q is true is infinite, then no numerical value for P can be reasonably determined by a comparison between those worlds. As such, an all-too-familiar sort of criticism of Popper’s view of science seems to loom large: if the corroboration function only makes sense when the probabilities employed therein are subjective, then what counts as impressive evidence for a theory might seem to be a matter of convention, or even whim. However, we now have a new interpretation of probability at our disposal: the intersubjective interpretation, recently championed by Gillies, according to which probabilities can lie on a spectrum between the aleatory and the epistemic. Might we employ this to preserve the corroboration function, and deliver ourselves from Bayesianism, without succumbing to radical subjectivism? (shrink)

The possibility of knowledge attributions across contexts (where attributor and subject find themselves in different epistemic contexts) can create serious problems for certain views of knowledge. Amongst such views is subject—sensitive invariantism—the view that knowledge is determined not only by epistemic factors (belief, truth, evidence, etc.) but also by non—epistemic factors (practical interests, etc.). I argue that subject—sensitive invariantism either runs into a contradiction or has to make very implausible assumptions. The problem has been very much neglected but is (...) so serious that one should look for alternative accounts of knowledge. (shrink)

Early modern medicine was much more dependent on the senses than its contemporary counterpart. Although a comprehensive medical theory existed that assigned great value to taste and odor of medicaments, historical descriptions of taste and odor appears imprecise and inconsistent to modern eyes. How did historical actors move from subjective experience of taste and odor to culturally stable agreements that facilitated communication about the sensory properties of medicaments? This paper addresses this question, not by investigating texts, but by going (...) straight to the sensory impression, which certain substances convey. The aim is not to overwrite or rectify historical descriptions but to investigate whether modern methodologies for sensory assessment can be enlisted to understand the past. We draw on history of science for framing and research questions, pharmaceutical science for knowledge of pharmaceuticals and preparations, and food and meal science for assaying procedures and protocols. We show that sensory evaluation can yield precise descriptions that would not have been alien to early modern medicine makers. However, there are problems with translating descriptions of taste between different historical contexts. By comparing contemporary descriptions of sensations with eighteenth‐century ones, the article discusses how sensory descriptions are highly dependent on context, and subject to historical change. (shrink)

Bayesianism is the position that scientific reasoning is probabilistic and that probabilities are adequately interpreted as an agent's actual subjective degrees of belief, measured by her betting behaviour. Confirmation is one important aspect of scientific reasoning. The thesis of this paper is the following: if scientific reasoning is at all probabilistic, the subjective interpretation has to be given up in order to get right confirmation—and thus scientific reasoning in general. The Bayesian approach to scientific reasoning Bayesian confirmation (...) theory The example The less reliable the source of information, the higher the degree of Bayesian confirmation Measure sensitivity A more general version of the problem of old evidence Conditioning on the entailment relation The counterfactual strategy Generalizing the counterfactual strategy The desired result, and a necessary and sufficient condition for it Actual degrees of belief The common knock-down feature, or ‘anything goes’ The problem of prior probabilities. (shrink)

Bayesianism claims to provide a unified theory of epistemic and practical rationality based on the principle of mathematical expectation. In its epistemic guise it requires believers to obey the laws of probability. In its practical guise it asks agents to maximize their subjective expected utility. Joyce’s primary concern is Bayesian epistemology, and its five pillars: people have beliefs and conditional beliefs that come in varying gradations of strength; a person believes a proposition strongly to the extent that she (...) presupposes its truth in her practical and theoretical reasoning; rational graded beliefs must conform to the laws of probability; evidential relationships should be analyzed subjectively in terms of relations among a person’s graded beliefs and conditional beliefs; empirical learning is best modeled as probabilistic conditioning. Joyce explains each of these claims and evaluates some of the justifications that have been offered for them, including “Dutch book,” “decision-theoretic,” and “non-pragmatic” arguments for and. He also addresses some common objections to Bayesianism, in particular the “problem of old evidence” and the complaint that the view degenerates into an untenable subjectivism. The essay closes by painting a picture of Bayesianism as an “internalist” theory of reasons for action and belief that can be fruitfully augmented with “externalist” principles of practical and epistemic rationality. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Kennedy Institute of Ethics Journal 10.2 (2000) 175-188 [Access article in PDF] Scope Note 38 Bioethics Resources on the Web * Once described as an "enormous used book store with volumes stacked on shelves and tables and overflowing onto the floor" (Pool, Robert. 1994. Turning an Info-Glut into a Library. Science 266 (7 October): 20-22, p. 20), Internet resources now receive numerous levels of organization, from basic directory listings (...) to elaborate "links" (cross-references to other Internet documents) that flash and glow in the dark. In many ways, the Internet functions as a direct extension of the traditional library. Following linked references across various sites is an electronic version of browsing library stacks, and the serendipitous discoveries made while "surfing the Net" recall the wonders of physically going "book-to-book." Although many of the Internet's best aspects augment library strengths by eliminating physical distance from sources, Net resources pose unique problems for researchers. It is not always clear who is responsible for the content of Web documents, when the document was produced, or how often (if ever) it is updated. Internet resource tools, then, must enable researchers to identify appropriate resources and to evaluate what they find when they get there. Web Research as Taking "Snapshots" Given the Internet's visual nature and fluid content, the process of conducting research on the Web has been likened to taking an informal picture of information on a specific date at a particular time. This metaphor also conveys the "zoom-in" aspect of searching through Web pages by going from general to specific categories. In the first section of this Scope Note, National Reference Center for Bioethics Literature (NRCBL) staff present a snapshot of bioethics resources taken during the spring months of 2000. Entries are divided into the categories of directories, electronic journals, full-text documents, news/current awareness, and teaching resources. In the two subsequent sections, this series of categories is repeated for entries on a specific topic within bioethics-genetics-and again for general search and evaluation tools. Where a Web site may contain pages applicable [End Page 175] to more than one category, multiple entries are made for that site with appropriate information for each category.Much as telecommunication advances have strengthened the relationship of patients and providers as partners, the dynamic nature of the Internet acknowledges that the researcher functions as a librarian whenever accessing the Web. It is our hope that BIOETHICSLINE and the other NRCBL databases not only will enable researchers to search the Web more efficiently, but also will help them to evaluate what they find when they get there. Bioethicsline on the Web: An International Plan in Progress Once only available through libraries, the U.S. National Library of Medicine (NLM), the funding agency for the ongoing development of the BIOETHICS LINE® database from the Kennedy Institute, has provided free Web access to that database of 63,000 citations since September 1998 through Internet Grateful Med. Plans are now underway to eliminate such specialty databases and incorporate all citations into PubMed (for journal articles) or LOCATORplus (for book-like materials and chapters in books). Both of these databases are likewise available at no cost on the Web. In the transition to PubMed and LOCATORplus some features of BIOETHICSLINE that presently are available may be lost. Researchers are encouraged to contact the National Reference Center for Bioethics Literature with search requests or for search strategy assistance with either the current or the future system ([email protected]).The inclusion of bioethics citations in PubMed and LOCATORplus will have several advantages. First, unique keywords from the Bioethics Thesaurus will be considered for inclusion in Medical Subject Headings (MeSH), the indexing vocabulary for PubMed and LOCATORplus, thereby enhancing retrieval of relevant clinical literature by offering more precise terminology covering ethical issues. Second, it will be easier to identify foreign-language materials, which are not currently included in the scope of BIOETHICSLINE. Third, the updating schedule will become more frequent. On the other hand, there may be some loss of searching precision because certain specialized features... (shrink)

The inductive reliability of Bayesian methods is explored. The first result presented shows that for any solvable inductive problem of a general type, there exists a subjective prior which yields a Bayesian inductive method that solves the problem, although not all subjective priors give rise to a successful inductive method for the problem. The second result shows that the same does not hold for computationally bounded agents, so that Bayesianism is "inductively incomplete" for such agents. Finally a (...) consistency proof shows that inductive agents do not need to disregard inductive failure on sets of subjective probability 0 in order to be ideally rational. Together the results reveal the inadequacy of the subjective Bayesian norms for scientific methodology. (shrink)

The Bayesian approach to quantum mechanics of Caves, Fuchs and Schack is presented. Its conjunction of realism about physics along with anti-realism about much of the structure of quantum theory is elaborated; and the position defended from common objections: that it is solipsist; that it is too instrumentalist; that it cannot deal with Wigner's friend scenarios. Three more substantive problems are raised: Can a reasonable ontology be found for the approach? Can it account for explanation in quantum theory? Are (...) subjective probabilities on their own adequate in the quantum domain? The first question is answered in the affirmative, drawing on elements from Nancy Cartwright's philosophy of science. The second two are not: it is argued that these present outstanding difficulties for the project. A quantum Bayesian version of Moore's paradox is developed to illustrate difficulties with the subjectivist account of pure state assignments. (shrink)

Subjective Bayesianism is a major school of uncertain reasoning and statistical inference. It is often criticized for a lack of objectivity: it opens the door to the influence of values and biases, evidence judgments can vary substantially between scientists, it is not suited for informing policy decisions. My paper rebuts these concerns by connecting the debates on scientific objectivity and statistical method. First, I show that the above concerns arise equally for standard frequentist inference with null hypothesis significance (...) tests. Second, the criticisms are based on specific senses of objectivity with unclear epistemic value. Third, I show that Subjective Bayesianism promotes other, epistemically relevant senses of scientific objectivity—most notably by increasing the transparency of scientific reasoning. (shrink)

It is argued that, in the traditional subject-predicate sentence, two interpretations of the subject term coexist, one intensional and the other extensional, which explains the superficial difference between the traditional S-P relation and the predication of predicate logic. Data from psychological studies of syllogistic reasoning support the view that the contrast between predicate and argument is carried over to the traditional S-P sentence.

How should we make decisions when we do not know the relevant physical probabilities? In these ambiguous situations, we cannot use our knowledge to determine expected utilities or payoffs. The traditional Bayesian answer is that we should create a probability distribution using some mix of subjective intuition and objective constraints. Imprecise Bayesians argue that this approach is inadequate for modelling ambiguity. Instead, they represent doxastic states using credal sets. Generally, insofar as we are more uncertain about the physical probability (...) of an event, there is more divergence in the credal set. Hence, their approach can represent these ambiguities via the extent of the divergence. Imprecise Bayesianism has mostly been advocated for its epistemological features. In this article, we examine its properties for decision-making. We develop a model for comparing standard and Imprecise Bayesianism by testing their performances in a classic decision problem. We find that the representational tools of Imprecise Bayesianism also cause it to underperform in our tests. This issue has been overlooked, because previous research on Imprecise Bayesianism has not utilised agent-based modelling to provide information about its performance in the short-run. Overall, we reveal the Ambiguity Dilemma for Imprecise Bayesianism: To what extent should one value representational power or decision-making performance? (shrink)

The foundations of probability deal with the problem of modelling reasoning in face of uncertainty by a mathematical calculus, usually the standard probability calculus .The three dominating schools in the foundations of probability interpret probabilities as limiting long-run frequencies conceived as an objective property of series of repeatable experiments , or rational betting rates for an individual to bet on the unknown outcome of experiments depending on the individual’s prior assessments updated by evidence , or rational betting rates to bet (...) on the unknown outcome of experiments depending on evidence only, but not on subjective assessments .Apart from the interpretation of probability, frequentism and Bayesianism in particular also differ with respect to the advocated methodology for inference. Frequentists use tests, estimators, and confidence intervals . Bayesians usually start with a prior distribution and use the posterior distribution, which is obtained by conditioning on the evidence, in order to carry out inferences. The prior distribution either models the individual’s personal prior probability assessments or, in objective Bayesianism, is chosen according to some rules in order to allow the evidence to determine the posterior.All three approaches are riddled with difficulties . Frequentism is often accused of circularity, because the assumption of independent identically distributed outcomes is needed in order to connect observations to frequentist probabilities, but ‘iid’ is itself defined probabilistically. Subjective Bayesianism is attacked for being too …. (shrink)

Many philosophers claimed that there might be fertile ground for collaboration between IBE and the objective end of the Bayesian methodology. Recent literature is investigated in this chapter, to highlight the latest developments about the possibility of such a collaboration. The merits of the convergence of the two methods are presented. It is argued that arriving on this end is not an easy goal as there are four ways by which subjective considerations may overshadow the objective picture. The existence (...) of subjective virtues, the vagueness of the mapping, the absence of an accurate weighting, and the existence of partial virtues allow the generation of infinitely many different initializations of priors and likelihoods, thus keeping the explanationist away from the objective extreme. Hence, either the explanationist successfully faces up with each one of the four problems so as to converge to the objective end or she ends up in a semi-objective position, whereby the explanatory restrictions allow a bunch of equally good probability distributions. (shrink)

Jonathan Weisberg has argued that Bayesianism’s rigid updating rules make Bayesian updating incompatible with undermining defeat. In this paper, I argue that when we attend to the higher-order beliefs we must ascribe to agents in the kinds of cases Weisberg considers, the problem he raises disappears. Once we acknowledge the importance of higher-order beliefs to the undermining story, we are led to a different understanding of how these cases arise. And on this different understanding of things, the rigid nature (...) of Bayesianism’s updating rules is no obstacle to its accommodating undermining defeat. (shrink)

The underdetermination thesis poses a threat to rational choice of scientific theories. We discuss two arguments for the thesis. One draws its strength from deductivism together with the existence thesis, and the other is defended on the basis of the failure of a reliable inductive method. We adopt a partially subjective/objective pragmatic Bayesian epistemology of science framework, and reject both arguments for the thesis. Thus, in science we are able to reinstate rational choice called into question by the underdetermination (...) thesis. (shrink)

Contemporary discussions of skepticism often frame the skeptic's argument around an instance of the closure principle. Roughly, the closure principle states that if a subject knows p, and knows that p entails q, then the subject knows q. The main contention of this paper is that the closure argument for skepticism is defective. We explore several possible classifications of the defect. The closure argument might plausibly be classified as begging the question, as exhibiting transmission failure, or as structurally inefficient. Interestingly, (...) perhaps, each of these has been proposed as the correct classification of Moore's proof of an external world. (shrink)

Whilst Bayesian epistemology is widely regarded nowadays as our best theory of knowledge, there are still a relatively large number of incompatible and competing approaches falling under that umbrella. Very recently, Wallmann and Williamson wrote an interesting article that aims at showing that a subjective Bayesian who accepts the principal principle and uses a known physical chance as her degree of belief for an event A could end up having incoherent or very implausible beliefs if she subjectively chooses the (...) probability of an event F for which she has much poorer evidence. They also argued that their own version of objective Bayesianism is completely immune to that challenge. In this article, after having presented the strongest version of Wallmann’s and Williamson’s argument, I will show that if successful, it has far-reaching consequences and would not only invalidate moderate subjective Bayesianism and imprecise probalism but also a form of objective Bayesianism that relies on conditionalisation, the principal principle, reference classes, and the principle of indifference applied to the most basic partitions. I then argue that their argument can be defeated by adding the rule that it is always irrational to choose a probability that can be computed from the known probabilities associated to one’s other beliefs. I finally argue that the authors’ main intuition that probabilities have different degrees of reliability favours imprecise Bayesianism over precise Bayesianism. (shrink)

Nietzsche's critique of the modern subject is often presented as a radical break with modern philosophy and associated with the so-called ‘death of the subject’ in 20th century philosophy. But Nietzsche claimed to be a ‘psychologist’ who was trying to open up the path for ‘new versions and sophistications of the soul hypothesis.’ Although there is no doubt that Nietzsche gave expression to a fundamental crisis of the modern conception of subjectivity, it is open to debate whether he wanted to (...) abandon the very idea of subjectivity or only to pose the problem of subjectivity in new terms. The volume includes 26 articles by top Nietzsche scholars. The chapters in Part I, “Tradition and Context”, deal with the relationship between Nietzsche's views on subjectivity and modern philosophy, as well as with the late 19th century context in which his thought emerged; Part II, “The Crisis of the Subject”, examines the impact of Nietzsche's critique of the subject on 20th century philosophy, from Freud to Heidegger to Dennett, but also in such authors as Deleuze, Foucault, Derrida, or Luhmann; Part III, “Current Debates - From Embodiment and Consciousness to Agency”, shows that the way in which Nietzsche engaged with such themes as the self, agency, consciousness, embodiment and self-knowledge makes his thought highly relevant for philosophy today, especially for philosophy of mind and ethics. (shrink)

Thomas Blackson does not question that my argument in section 2 of “Assertion, Knowledge and Context” establishes the conclusion that the standards that comprise a truth-condition for “I know that P” vary with context, but does claim that this does not suffice to validly demonstrate the truth of contextualism, because this variance in standards can be handled by what we will here call Subject-Sensitive Invariantism (SSI), and so does not demand a contextualist treatment. According to SSI, the varying standards that (...) comprise a truth-condition of “I know that P” are sensitive to factors that attach to the speaker as the putative subject of knowledge, rather than as the speaker of the knowledge attribution. That is, according to SSI, these factors of the subject’s context determine a single set of standards that govern when the subject himself, or any other speaker, including those not engaged in conversation with the subject, can truthfully say that the subject “knows.” Thus, we do not get the result that contextualists insist on: that one speaker can truthfully say the subject “knows,” while another speaker, in a different and more demanding context, can say that the subject does “not know”, even though the two speakers are speaking of the same subject knowing (or not knowing) the same proposition at the same time. Given the possibility of SSI, Blackson concludes that I “either assumed without argument that [SSI] is false or failed to distinguish the different ways the standard for knowledge might be determined.” I indeed have long assumed that SSI can’t be right, and so have taken a different form of invariantism to be the real threat to contextualism. But since SSI, and views like it, now seem to be getting considerable attention, it is worth articulating why I find it unpromising. (shrink)

Thomas Blackson does not question that my argument in section 2 of “Assertion, Knowledge and Context” establishes the conclusion that the standards that comprise a truth-condition for “I know that P” vary with context, but does claim that this does not suffice to validly demonstrate the truth of contextualism, because this variance in standards can be handled by what we will here call Subject-Sensitive Invariantism, and so does not demand a contextualist treatment. According to SSI, the varying standards that comprise (...) a truth-condition of “I know that P” are sensitive to factors that attach to the speaker as the putative subject of knowledge, rather than as the speaker of the knowledge attribution. That is, according to SSI, these factors of the subject’s context determine a single set of standards that govern when the subject himself, or any other speaker, including those not engaged in conversation with the subject, can truthfully say that the subject “knows.” Thus, we do not get the result that contextualists insist on: that one speaker can truthfully say the subject “knows,” while another speaker, in a different and more demanding context, can say that the subject does “not know,” even though the two speakers are speaking of the same subject knowing the same proposition at the same time. Given the possibility of SSI, Blackson concludes that I “either assumed without argument that [SSI] is false or failed to distinguish the different ways the standard for knowledge might be determined.”. (shrink)

This paper discusses theoretical issues concerning Vygotsky’s work that have remained unaddressed in the dominant interpretations of his work, either in the former Soviet psychology or in the dominant Western interpretations. This paper builds on interpretations of Vygotsky’s concepts oriented by the unity of emotional and cognitive processes and focused on the search for new psychical unities on which to build a systemic representation of the human mind. Because Vygotsky did not provide a definite position on such questions, I have (...) centered on the analysis of the consequences of his legacy for the development of a definition of subjectivity from a cultural-historical standpoint. (shrink)

Orthodox Bayesianism is a highly idealized theory of how we ought to live our epistemic lives. One of the most widely discussed idealizations is that of logical omniscience: the assumption that an agent’s degrees of belief must be probabilistically coherent to be rational. It is widely agreed that this assumption is problematic if we want to reason about bounded rationality, logical learning, or other aspects of non-ideal epistemic agency. Yet, we still lack a satisfying way to avoid logical omniscience (...) within a Bayesian framework. Some proposals merely replace logical omniscience with a different logical idealization; others sacrifice all traits of logical competence on the altar of logical non-omniscience. We think a better strategy is available: by enriching the Bayesian framework with tools that allow us to capture what agents can and cannot infer given their limited cognitive resources, we can avoid logical omniscience while retaining the idea that rational degrees of belief are in an important way constrained by the laws of probability. In this paper, we offer a formal implementation of this strategy, show how the resulting framework solves the problem of logical omniscience, and compare it to orthodox Bayesianism as we know it. (shrink)

The knowledge account of assertion construes assertion as subject to constitutive norms. In its standard version, it combines a wide scope obligation not to assert p without knowing p, with narrow scope principles specifying conditions under which it is permissible to assert p, where the notions of obligation and permission are duals and behave uniformly for variable p. It is argued that, given natural assumptions about the logic of ‘ought’, the account proves incoherent. The argument generalizes to accounts that substitute (...) other factive notions for knowledge. A recent non‐standard version of the knowledge account employs proposition‐relative norms and circumvents the problem. However, it still leads to intolerable combinations of verdicts. Again, the problem arises because knowledge is factive, and it generalizes to other factive notions. It is shown that non‐factive accounts face none of the diagnosed difficulties and can do much of the explanatory work that the knowledge account is alleged to do. (shrink)

Awareness of the morally significant distinction between research and innovative therapy reveals serious gaps in the legal provision for compensation in the UK for injured subjects of medical research. Major problems are limitations inherent in negligence actions and a culture that emphasises indemnifying researchers before compensating victims. Medical research morally requires compensation on a no-fault basis even where there is proper consent on the part of the research subject. In particular, for drug research, there is insufficient provision in the (...) current patient guidelines of the Association of the British Pharmaceutical Industry, since they make "no legal commitment" to paying compensation for injury to patient subjects. There is a need for the provision of both adequate insurance and contractual arrangements for making payments. The solution is for Local Research Ethics Committees (LRECs) to make use of their power to withhold approval of medical research where compensation is not legally enforceable. (shrink)

The sense of agency, that is the sense that one is the agent of one’s bodily actions, is one component of our self-consciousness. Recently, Wegner and colleagues have developed a model of the causal history of this sense. Their model takes it that the sense of agency is elicited for an action when one infers that one or other of one’s mental states caused that action. In their terms, the sense of agency is elicited by the inference to apparent mental (...) state causation. Here, I argue that this model is inconsistent with data from developmental psychology that suggests children can identify the agent behind an action without being capable of understanding the relationship between their intentions and actions. Furthermore, I argue that this model is inconsistent with the preserved sense of agency in autism. In general, the problem is that there are cases where subjects can experience themselves as the agent behind their actions despite lacking the resources to make the inference to apparent mental state causation. (shrink)

Christopher Fuchs has recently offered a provocative version of quantum mechanical realism, which is based on the suggestion that quantum probabilities merit a subjective interpretation. His proposal, however, has been charged with inconsistency by Amit Hagar (2003), who argues that interpreting quantum probabilities subjectively is inconsistent with the realist claims Fuchs wants to maintain for the quantum system and the dimensionality of the Hilbert space that accompanies it. In this paper I first outline the fundamentals of Fuchs's approach and (...) then take up the task of rebutting Hagar's charge by demonstrating the internal coherence of Fuchs's realism. (shrink)

Christopher Fuchs has recently offered a provocative version of quantum mechanical realism, which is based on the suggestion that quantum probabilities merit a subjective interpretation. His proposal, however, has been charged with inconsistency by Amit Hagar, who argues that interpreting quantum probabilities subjectively is inconsistent with the realist claims Fuchs wants to maintain for the quantum system and the dimensionality of the Hilbert space that accompanies it. In this paper I first outline the fundamentals of Fuchs’s approach and then (...) take up the task of rebutting Hagar’s charge by demonstrating the internal coherence of Fuchs’s realism. (shrink)

This dissertation is an investigation into the mode of self-understanding that arises once the conception of subjectivity is displaced from its foundational position in metaphysics. I examine the problem of the displacement of the subject by focusing on the philosophy of Kant and Heidegger. I choose Kant and Heidegger for two reasons: first, Kant's Copernican Revolution places the subject at the ground of metaphysics and defines the place of the subject in philosophy up to the contemporary period; second, Heidegger's investigation (...) of Kant displaces the metaphysical conception of the subject and gives rise to other possible understandings of the self. ;The dissertation consists of four chapters. First, I develop the problem of displacement, place my dissertation within the context of contemporary thought, and discuss three modes of reading the history of philosophy. Of the three readings, I choose to conduct both a destructive and a deconstructive reading of the history of philosophy. Second, I explain the Kantian conception of subjectivity in terms of the Copernican Revolution and introduce the Kantian conception of the imagination. Third, I examine the relationship between the imagination and subjectivity as it emerges in the two transcendental deductions of the Critique of Pure Reason. In this chapter, I show the ontological priority of the imagination in Kant's thought. Contrary to the 'orthodox' body of Kantian interpretation, I argue that Kant retrieves the findings of the A deduction within the B deduction and that the imagination maintains its place of importance in Kant's thought. Fourth, I examine Heidegger's understanding of the imagination in Kant and the Problem of Metaphysics. I show how the temporal character of the imagination displaces the conception of a self-grounding subject and replaces the subject with an understanding of ourselves as the questioner. After discussing this mode of the self, I show how the imagination deconstructs subjectivity and the metaphysical project. The deconstructive reading leads to a discussion of the self within a Derridean and Nietzschean context. (shrink)

ABSTRACT Most existing literature on the ethics of full ectogenesis has proceeded under the presupposition that science will at some point produce sophisticated technologies for full‐term gestation (from embryo to infant) outside the human womb, delivering neonate health outcomes comparable with (or even superior to) biological gestation. However, the development of this technology—as opposed to the support systems currently being advanced—would require human subject experiments in embryo‐onwards development using ectogenic prototypes. Literature on ectogenic research ethics has so far focused on (...) ‘backwards’ development of partial ectogenesis: incubation and ectogestation technologies that would allow the support of earlier and earlier neonates and foetuses. However, little has been said about the ethics of ‘forwards’ development of (partial or full) ectogenesis, involving the development of embryos and foetuses in prototype environments. Such a prototype might allow us to produce a gestateling or live neonate from a human embryo, but with poorer expected development and health outcomes than from biological gestation; it might also produce only gestatelings (healthy or otherwise) before the technology was developed to a stage where full‐term gestation was achievable. This paper explicates some of the ethical issues that this raises for the development of ‘full’ ectogenesis, and presents prima facie reasons to consider this research problematic and therefore to require extensive further argument in its defence. (shrink)

The idea of a collective, but not necessarily universal epistemological subject is not only inherent in African tradition but also in the sciences and humanities as understood in the western tradition. In this paper I propose to delineate this collective subject by means of the construction of the Marxian concept of a theoretical representative of a social class . This allows for avoiding a trap that is necessarily faced by any collectivist viewpoint.

According to Williamson , the difference between empirical subjective Bayesians and objective Bayesians is that, while both hold reasonable credence to be calibrated to evidence, the objectivist also takes such credence to be as equivocal as such calibration allows. However, Williamson’s prescription for equivocation generates constraints on reasonable credence that are objectionable. Herein Williamson’s calibration norm is explicated in a novel way that permits an alternative equivocation norm. On this alternative account, evidence calibrated probability functions are recognised as implications (...) of evidence calibrated density functions defined over chance hypotheses. The objective Bayesian equivocates between these calibrated density functions rather than between the calibrated probability functions themselves. The result is an objective Bayesianism that avoids the main problem afflicting Williamson’s original proposal. (shrink)

The Dutch Book argument, like Route 66, is about to turn 80. It is arguably the most celebrated argument for subjective Bayesianism. Start by rejecting the Cartesian idea that doxastic attitudes are ‘all-or-nothing’; rather, they are far more nuanced degrees of belief, for short credences, susceptible to fine-grained numerical measurement. Add a coherentist assumption that the rationality of a doxastic state consists in its internal consistency. The remaining problem is to determine what consistency of credences amounts to. The (...) Dutch Book argument, in a nutshell, says that if your credences do not obey the probability calculus, you are ‘incoherent’—susceptible to sure losses at the hands of a ‘Dutch Bookie’—and thus irrational. Conclusion: rationality requires your credences to obey the probability calculus. And like Route 66, the fortunes of the Dutch Book argument have been mixed. Opinions on the argument are sharply divided. The list of its proponents is quite a ‘who’s who’ of philosophers of probability; they include de Finetti (1937, 1980), Carnap (1950, 1962, and more fully, 1955), Kemeny (1955), Lehman (1955), Shimony (1955), Adams (1962), Mellor (1971), Rosenkrantz (1981), van Fraassen (1989), Jeffrey (1983, 1992). (shrink)

Evidentialism says that a subject S’s justification is entirely determined by S’s evidence. The plausibility of evidentialism depends on what kind of entities constitute a subject S’s evidence and what one takes the support relation to consist in. Conee and Feldman’s mainstream evidentialism incorporates a psychologist answer to and an explanationist answer to. ME naturally accommodates perceptual justification. However, it does not accommodate intuitive cases of inferential justification. In the second part of the paper, I consider and reject a reply (...) based on a refined explanationist theory of the support relation proposed by K McCain. (shrink)

Panpsychism is now a bona fide potential solution to the metaphysical quandary of consciousness. Much of the debate concerning the viability of panpsychism is centered on the combination problem. Intriguingly, the literature analyzing this problem displays two competing interpretations which differ in their modal force. According to the first, which we call the ‘no-necessitation view', CP consists in the absence of a priori necessitation of macro-level phenomenal facts from micro-level phenomenal facts. In contrast, the second interpretation, which we label the (...) ‘incoherence charge’, goes further by insisting that it can be positively demonstrated that micro-experiences cannot combine to yield integral macro-experiences. While conceivability arguments are vulnerable to debates over conflicting intuitions, as well as to the claim that a more complete picture will grant the desired necessitation, IC has the advantage that, if true, it removes these concerns and approaches a more final verdict. Nevertheless, while conceivability arguments are widely discussed IC has not been equally well understood or recognized. In this paper we conduct a systematic investigation and reevaluation of IC, as it applies to constitutive micropsychism. We argue that the problem is real and therefore that constitutive micropsychism is a blind alley. (shrink)

This article deals with the theme of subjectivity. One of the most pressing questions today is what theoretical and practical efforts should be made to avoid being a powerless tool in the hands of others and under what conditions one’s own “subjective opinion” becomes the real, reliable fulcrum as far as purposeful activity, free and reasonable goal-setting are concerned. The desire to derive subjectivity from individual, singular existence today forces a thinker as prominent as Slavoj Žižek to search for (...) its form as “purified from” ideological layers and the contingencies of life. In his search for such a form, he turns to the psychoanalytic tradition, to the work of Jacques Lacan and his attempts to formalize the structures of subjectivity in isolation from the universality that generates them as necessity. This abstract consideration of subjectivity leads him to recognize subjectivity as a “distorting factor” in view of the insurmountable rupture between being and thinking. Evald Ilyenkov takes a different approach to the question of active self-determination. He conceives of personality as universal—the traits of a person are formed in the course of interaction between individuals in the process of producing the means of life. The individual becomes a personality or an acting subject, appropriating the generic powers of humanity, while being included in a system that implies a human relationship to the thing and, through it, to another individual. (shrink)

In this commentary on Michael Slote’s paper “The Many Faces of Empathy,” I assess the ways in which his theory of empathy aligns with simulation theory, as well as the problems that he needs to address because of this. Overall, I present three problems that need to be addressed: How do we know that we have caught the other’s emotion and not merely reacted on our own; What exactly is it about the other’s emotion or attitude that I (...) am mimicking and catching; and Does empathy provide us with objective or subjective ethical knowledge? (shrink)

I argue that existing objectivist accounts of subjective reasons face systematic problems with cases involving probability and possibility. I then offer a diagnosis of why objectivists face these problems, and recommend that objectivists seek to provide indirect analyses of subjective reasons.

The incomparability of alternatives is thought to pose a problem for justified choice, particularly for proponents of comparativism better than,worse than,equally good,roughly equalon a par. namely, rejection of the transitivity of the relation In this paper, I argue that proponents of comparativism need not incur this cost. I defend the possibility of justified choice between incomparable alternatives on grounds that comparativists can accept. The possibility of incomparability has been met with resistance, in part because of the intuitive appeal of comparativism. (...) By defending the possibility of justified choice between incomparable alternatives on grounds that comparativists can accept, this paper supports further inquiry into the subject of incomparability. (shrink)

Philosophical accounts of "action" standardly take an action to be a doing which _satisfies some description that is semantically related to the content of a propositional attitude of the subject's which _explains why that doing occurred. Causal theories of action require that the explanation in question must involve the causation of action-doings by propositional attitudes (typically intentions, volitions, or combinations of belief and desire). I argue that there are actions whose status, as such, cannot be acknowledged by any causal theory, (...) since no such theory can allow that they fulfill the satisfaction condition. (shrink)

The incomparability of alternatives is thought to pose a problem for justified choice, particularly for proponents ofcomparativism– the view that comparative facts about alternatives determine what one rationally ought to choose. As a solution, it has been argued that alternatives judged incomparable by one of the three standard comparative relations, “better than,” “worse than,” and “equally good,” are comparable by some fourth relation, such as “roughly equal” or “on a par.” This solution, however, comes at what many would regard as (...) too high a cost – namely, rejection of the transitivity of the relation “at least as good as.” In this paper, I argue that proponents of comparativism need not incur this cost. I defend the possibility of justified choice between incomparable alternatives on grounds that comparativists can accept. The possibility of incomparability has been met with resistance, in part because of the intuitive appeal of comparativism. By defending the possibility of justified choice between incomparable alternatives on grounds that comparativists can accept, this paper supports further inquiry into the subject of incomparability. (shrink)

Offering a solution to the skeptical puzzle is a central aim of Nozick's sensitivity account of knowledge. It is well-known that this account faces serious problems. However, because of its simplicity and its explanatory power, the sensitivity principle has remained attractive and has been subject to numerous modifications, leading to a of sensitivity accounts. I will object to these accounts, arguing that sensitivity accounts of knowledge face two problems. First, they deliver a far too heterogeneous picture of higher-level (...) beliefs about the truth or falsity of one's own beliefs. Second, this problem carries over to bootstrapping and Moorean reasoning. Some beliefs formed via bootstrapping or Moorean reasoning are insensitive, but some closely related beliefs in even stronger propositions are sensitive. These heterogeneous results regarding sensitivity do not fit with our intuitions about bootstrapping and Moorean reasoning. Thus, neither Nozick's sensitivity account of knowledge nor any of its modified versions can provide the basis for an argument that bootstrapping and Moorean reasoning are flawed or for an explanation why they seem to be flawed. (shrink)

A defense of the neo-Lockean theory of personal identity. Wiggins' objection to relative identity is met by a person-stage interpretation of the neo-Lockean theory. This interpretation is subject to the objections that person-stages are not logically independent of persons and that person-stages cannot have the properties of persons. These objections are met in large part by regarding person-stages as somewhat arbitrary divisions of persons whose postulation is justified by the requirements set by Leibniz's Law and our reflective intuitions.

A defense of the neo-Lockean theory of personal identity. Wiggins' objection to relative identity is met by a person-stage interpretation of the neo-Lockean theory. This interpretation is subject to the objections that person-stages are not logically independent of persons and that person-stages cannot have the properties of persons. These objections are met in large part by regarding person-stages as somewhat arbitrary divisions of persons whose postulation is justified by the requirements set by Leibniz's Law and our reflective intuitions.

This paper is a response to Forster and Sober's [1994] solution to the curve-fitting problem. If their solution is correct, it will provide us with a solution to the New Riddle of Induction as well as provide a basis for choosing realism over conventionalism. Examining this solution is also important as Forster and Sober incorporate it in much of their other philosophical work (see Forster [1995a, b, 1994] and Sober [1996, 1995, 1993]). I argue that Forster and Sober's solution is (...) subject precisely to the problem they seek to solve. They provide a method of choosing among hypotheses but only at the cost of requiring that we have a method of choosing between different ways of conceptualizing the world. Thus the solution raises a new problem--the world-fitting problem. (shrink)