In this work, Paul Bartha proposes a normative theory of analogical arguments and raises questions and proposes answers regarding the criteria for evaluating analogical arguments, the philosophical justification for analogical reasoning, and the place of scientific analogies in the context of theoretical confirmation.

By Parallel Reasoning is the first comprehensive philosophical examination of analogical reasoning in more than forty years designed to formulate and justify standards for the critical evaluation of analogical arguments. It proposes a normative theory with special focus on the use of analogies in mathematics and science. In recent decades, research on analogy has been dominated by computational theories whose objective has been to model analogical reasoning as a psychological process. These theories have devoted little attention to normative questions. In (...) this book Bartha proposes that a good analogical argument must articulate a clear relationship that is capable of generalization. This idea leads to a set of distinct models for the critical analysis of prominent forms of analogical argument. The same core principle makes it possible to relate analogical reasoning to norms and values of scientific practice. Reasoning by analogy is justified because it strikes an optimal balance between conservative values, such as simplicity and coherence, and progressive values, such as fruitfulness and theoretical unification. Analogical arguments are also justified by appeal to symmetry--like cases are to be treated alike. In elaborating the connection between analogy and these broad epistemic principles, By Parallel Reasoning offers a novel contribution to explaining how analogies can play an important role in the confirmation of scientific hypotheses. (shrink)

Among recent objections to Pascal's Wager, two are especially compelling. The first is that decision theory, and specifically the requirement of maximizing expected utility, is incompatible with infinite utility values. The second is that even if infinite utility values are admitted, the argument of the Wager is invalid provided that we allow mixed strategies. Furthermore, Hájek has shown that reformulations of Pascal's Wager that address these criticisms inevitably lead to arguments that are philosophically unsatisfying and historically unfaithful. Both the objections (...) and Hájek's philosophical worries disappear, however, if we represent our preferences using relative utilities rather than a one-place utility function. Relative utilities provide a conservative way to make sense of infinite value that preserves the familiar equation of rationality with the maximization of expected utility. They also provide a means of investigating a broader class of problems related to the Wager. (shrink)

De Finetti would claim that we can make sense of a draw in which each positive integer has equal probability of winning. This requires a uniform probability distribution over the natural numbers, violating countable additivity. Countable additivity thus appears not to be a fundamental constraint on subjective probability. It does, however, seem mandated by Dutch Book arguments similar to those that support the other axioms of the probability calculus as compulsory for subjective interpretations. These two lines of reasoning can be (...) reconciled through a slight generalization of the Dutch Book framework. Countable additivity may indeed be abandoned for de Finetti's lottery, but this poses no serious threat to its adoption in most applications of subjective probability. Introduction The de Finetti lottery Two objections to equiprobability 3.1 The ‘No random mechanism’ argument 3.2 The Dutch Book argument Equiprobability and relative betting quotients The re-labelling paradox 5.1 The paradox 5.2 Resolution: from symmetry to relative probability Beyond the de Finetti lottery. (shrink)

The Pasadena game invented by Nover and Hájek raises a number of challenges for decision theory. The basic problem is how the game should be evaluated: it has no expectation and hence no well-defined value. Easwaran has shown that the Pasadena game does have a weak expectation, raising the possibility that we can eliminate the value gap by requiring agents to value gambles at their weak expectations. In this paper, I first prove a negative result: there are gambles like the (...) Pasadena game that do not even have a weak expectation. Hence, problematic value gaps remain even if decision theory is extended to take in weak expectations. There is a further challenge: the existence of a ‘value gap’ in the Pasadena game seems to make decision theory inapplicable in a number of cases where the right choice is obvious. The positive contribution of the paper is a theory of ‘relative utilities’, an extension of decision theory that lets us make comparative judgements even among gambles that have no well-defined value. (shrink)

Confronted with the possibility of severe environmental harms, such as catastrophic climate change, some researchers have suggested that we should abandon the principle at the heart of standard decision theory—the injunction to maximize expected utility—and embrace a different one: the Precautionary Principle. Arguably, the most sophisticated philosophical treatment of the Precautionary Principle is due to Steel. Steel interprets PP as a qualitative decision rule and appears to conclude that a quantitative decision-theoretic statement of PP is both impossible and unnecessary. In (...) this article, we propose a decision-theoretic formulation of PP in terms of lexical utilities. We show that this lexical model is largely faithful to Steel’s approach, but also that it corrects three problems with Steel’s account and clarifies the relationship between PP and standard decision theory. Using a range of examples, we illustrate how the lexical model can be used to explore a variety of issues related to precautionary reasoning. (shrink)

We examine a distinctive kind of problem for decision theory, involving what we call discontinuity at infinity. Roughly, it arises when an infinite sequence of choices, each apparently sanctioned by plausible principles, converges to a ‘limit choice’ whose utility is much lower than the limit approached by the utilities of the choices in the sequence. We give examples of this phenomenon, focusing on Arntzenius et al.’s Satan’s apple, and give a general characterization of it. In these examples, repeated dominance reasoning (...) (a paradigm of rationality) apparently gives rise to a situation closely analogous to having intransitive preferences (a paradigm of irrationality). Indeed, the agents in these examples are vulnerable to a money pump set-up despite having preferences that exhibit no obvious defect of rationality. We explore several putative solutions to such problems, particularly those that appeal to binding and to deliberative dynamics. We consider the prospects for these solutions, concluding that if they fail, the examples show that money pump arguments are invalid. (shrink)

Some environmental ethicists and economists argue that attributing infinite value to the environment is a good way to represent an absolute obligation to protect it. Others argue against modelling the value of the environment in this way: the assignment of infinite value leads to immense technical and philosophical difficulties that undermine the environmentalist project. First, there is a problem of discrimination: saving a large region of habitat is better than saving a small region; yet if both outcomes have infinite value, (...) then decision theory prescribes indifference. Second, there is a problem of swamping probabilities: an act with a small but positive probability of saving an endangered species appears to be on par with an act that has a high probability of achieving this outcome, since both have infinite expected value. Our paper shows that a relative concept of infinite value can be meaningfully defined, and provides a good model for securing the priority of the natural environment while avoiding the failures noted by sceptics about infinite value. Our claim is not that the relative infinity utility model gets every detail correct, but rather that it provides a rigorous philosophical framework for thinking about decisions affecting the environment. (shrink)

The Principle of Indifference, which dictates that we ought to assign two outcomes equal probability in the absence of known reasons to do otherwise, is vulnerable to well-known objections. Nevertheless, the appeal of the principle, and of symmetry-based assignments of equal probability, persists. We show that, relative to a given class of symmetries satisfying certain properties, we are justified in calling certain outcomes equally probable, and more generally, in defining what we call relative probabilities. Relative probabilities are useful in providing (...) a generalized approach to conditionalization. The technique is illustrated by application to simple examples. (shrink)

We provide a solution to the well-known “Shooting-Room” paradox, developed by John Leslie in connection with his Doomsday Argument. In the “Shooting-Room” paradox, the death of an individual is contingent upon an event that has a 1/36 chance of occurring, yet the relative frequency of death in the relevant population is 0.9. There are two intuitively plausible arguments, one concluding that the appropriate subjective probability of death is 1/36, the other that this probability is 0.9. How are these two values (...) to be reconciled? We show that only the first argument is valid for a standard, countably additive probability distribution. However, both lines of reasoning are legitimate if probabilities are non-standard. The subjective probability of death rises from 1/36 to 0.9 by conditionalizing on an event that is not measurable, or whose probability is zero. Thus we can sometimes meaningfully ascribe conditional probabilities even when the event conditionalized upon is not of positive finite (or even infinitesimal) measure. (shrink)

Carter and Leslie (1996) have argued, using Bayes's theorem, that our being alive now supports the hypothesis of an early 'Doomsday'. Unlike some critics (Eckhardt 1997), we accept their argument in part: given that we exist, our existence now indeed favors 'Doom sooner' over 'Doom later'. The very fact of our existence, however, favors 'Doom later'. In simple cases, a hypothetical approach to the problem of 'old evidence' shows that these two effects cancel out: our existence now yields no information (...) about the coming of Doom. More complex cases suggest a move from countably additive to non-standard probability measures. (shrink)

In analogical reasoning, observations about one or more source domains provide varying degrees of support for a conjecture about a target domain. Norton (2021) challenges the usefulness of formal models of analogical inference. Other philosophers (Dardashti et al. 2019) develop just such formal models in order to show how analogue experiments can confirm a hypothesis, even when the target domain is inaccessible. This paper defends the value of quasi-formal models of analogical reasoning. Such models are broadly compatible with Norton’s position, (...) but help to clarify the structure of analogical reasoning and to identify basic requirements for a good analogical inference. (shrink)

In his famous Wager, Blaise Pascal offers the reader an argument that it is rational to strive to believe in God. Philosophical debates about this classic argument have continued until our own times. This volume provides a comprehensive examination of Pascal's Wager, including its theological framework, its place in the history of philosophy, and its importance to contemporary decision theory. The volume starts with a valuable primer on infinity and decision theory for students and non-specialists. A sequence of chapters then (...) examines topics including the Wager's underlying theology, its influence on later philosophical figures, and contemporary analyses of the Wager including Alan Hájek's challenge to its validity, the many gods objection, and the ethics of belief. The final five chapters explore various ways in which the Wager has inspired contemporary decision theory, including questions related to infinite utility, imprecise probabilities, and infinitesimals. (shrink)

How can self-locating propositions be integrated into normal patterns of belief revision? Puzzles such as Sleeping Beauty seem to show that such propositions lead to violation of ordinary principles for reasoning with subjective probability, such as Conditionalization and Reflection. I show that sophisticated forms of Conditionalization and Reflection are not only compatible with self-locating propositions, but also indispensable in understanding how they can function as evidence in Sleeping Beauty and similar cases.

Qu'est-ce qui explique l'unité d'une substance leibnizienne, au-dessus des attributs compris dans sa notion individuelle complète? C'est une question commune dans la littérature sur la notion de la substance chez Leibniz. Cet article soutient qu'elle n'admette pas de réponse consistante dans le système leibnizien. Premièrement, je discute la manière dans laquelle Leibniz a essayé de répondre à la question en „rehabillitant" a les formes substantielles des scholastiques. Puis je cherche à montrer que ça lui a ammené à une conception composée (...) de la nature de la substance, une position similaire de quelques façons à celle de Duns Scotus. Cette conception composée, cependant, n'est pas soutenable étant donné que Leibniz a rejeté la „distinction formelle" de Scotus. (shrink)

This article explores the consequences of falling costs of solar and wind power for the ethics of climate change mitigation. We suggest that price competitiveness of renewables reveals a divergence of interest between fossil fuel consumers and producers: cheap renewables strengthen precautionary arguments for aggressive mitigation for consumers but threaten the economic base of producers. As existing applications of the precautionary principle to climate change do not address this issue, we develop a novel approach based on lexical utilities. Given the (...) premise that climate catastrophe entails economic catastrophe but not vice versa, we argue that both producers and consumers should favor mitigation. (shrink)

Large-scale sequencing tests, including whole-exome and whole-genome sequencing, are rapidly moving into clinical use. Sequencing is already being used clinically to identify therapeutic opportunities for cancer patients who have run out of conventional treatment options, to help diagnose children with puzzling neurodevelopmental conditions, and to clarify appropriate drug choices and dosing in individuals. To evaluate and support clinical applications of these technologies, the National Human Genome Research Institute and National Cancer Institute have funded studies on clinical and research sequencing under (...) the Clinical Sequencing Exploratory Research program as well as studies on return of results. Most of these studies use sequencing in real-world clinical settings and collect data on both the application of sequencing and the impact of receiving genomic findings on study participants. They are occurring in the context of controversy over how to obtain consent for exome and genome sequencing. (shrink)

This volume intends to offer contemporary philosophers and philosophy students a comprehensive introduction to the reception, readings, and influence of Pascal's Wager historically and today. The text is divided into three sections: the Wager's historical context and influence, critical engagements and appraisals of the Wager argument, and new discussions of the Wager in light of contemporary developments about probability, utility, and belief. In the Introduction, readers will discover a helpful primer to decision theory and infinite utility, an excellent aid for (...) those unfamiliar with conversations beginning in Part II.A feature rather than a flaw of contemporary analysis is a series... (shrink)

A new look at analogical reasoning Content Type Journal Article Pages 1-5 DOI 10.1007/s11016-011-9563-z Authors Dirk Schlimm, Department of Philosophy, McGill University, Montreal, QC H3A 2T7, Canada Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.

The resemblance theory of representation is the view that one thing represents another by virtue of resembling it. Typically, it is taken as non-controversial that Berkeley accepts the resemblance theory of representation – even if the plausibility of the resemblance theory itself comes under scrutiny. One piece of evidence in favour of this reading of Berkeley is his commitment to the ‘likeness principle’: the view that ‘an idea can be like nothing but an idea’ (PHK § 8). The likeness principle (...) is typically seen as a rejection of the kind of indirect theory of perception that is often attributed to Locke. However, by paying particular attention to Berkeley’s account of how mental representation via the imagination works, Dávid Bartha casts doubt on the consensus view that Berkeley does accept the resemblance theory of representation. (shrink)

Berkeley’s likeness principle states that only an idea can be like an idea. In this paper, I argue that the principle should be read as a premise only in a metaphysical argument showing that matter cannot instantiate anything like the sensory properties we perceive. It goes against those interpretations that take it to serve also, if not primarily, an epistemological purpose, featuring in Berkeley’s alleged Representation Argument to the effect that we cannot reach beyond the veil of our ideas. First, (...) in section 1, I raise some concerns about the traditional narrative concerning the likeness principle’s role in Berkeley’s argumentation. In section 2, I delineate an alternative narrative, arguing that there is no ‘missing premise’ in his alleged Representation Argument we need to explain simply because he advances no argument like that in the first place. In section 3–4, I provide a close reading of the relevant passages—first from the _Principles_, then the _Dialogues_—and their contexts, supporting textually a purely metaphysical interpretation of the likeness principle arguments. In section 5, I address some possible objections, based on the phrasing of the likeness principle passages and some related texts. (shrink)

Genetic research has moved from Mendelian genetics to sequence maps to the study of natural human genetic variation at the level of the genome. This past decade of discovery has been accompanied by a shift in emphasis towards the ethical principles of reciprocity, mutuality, solidarity, citizenry and universality.

Noam Chomsky and Frances Egan argue that David Marr’s computational theory of vision is not intentional, claiming that the formal scientific theory does not include description of visual content. They also argue that the theory is internalist in the sense of not describing things physically external to the perceiver. They argue that these claims hold for computational theories of vision in general. Beyond theories of vision, they argue that representational content does not figure as a topic within formal computational theories (...) in cognitive science. I demonstrate that Chomsky’s and Egan’s claims about Marr’s theory are false. Marr’s computational theory contains a mathematical theory of visual content, based on empirical psychophysical evidence. It also contains mathematical descriptions of distal physical surfaces and objects, and of their optic projection to the perceiver. Much computational research on vision contains these types of intentional and externalist components within the formal, mathematical, theories. Chomsky’s and Egan’s claims demonstrate inadequate study and understanding of Marr’s work and other research in this area. Computational theories of vision, by containing empirically based mathematical theories of visual content, to this extent present naturalizations of semantics. (shrink)

Human reproductive cloning has become the most palpable example of the globalization of science. Throughout the world, events and conjectures in the media, such as the birth and death in the United Kingdom of the cloned sheep Dolly and projects to clone human beings by Korean scientists, by members of the Canadian-based Raelian cult, and by the Italian physician Antinori in an undisclosed country, have galvanized the political will of individual countries to ban human reproductive cloning.Yet, international attempts to harmonize (...) policies in the area of biomedical ethics and human research, such as the 1997 Council of Europe’s Convention on Human Rights and Biomedicine, and most recently, the United Nations’ efforts to adopt an international convention against human reproductive cloning, have been insufficient to trigger a substantial global policy design process on issues relating to these new technologies. (shrink)

This book of selected papers covers population research and banking as well as accompanying confidentiality, and governance concerns.

Commentators generally agree that Foucher presumes the resemblance theory of representation and uses it to substantiate external world skepticism. In this paper, I challenge this picture. First, I argue that he does not assume that representation is reducible to, or even just works through, resemblance between representation and object. Indeed, his functional-similarity theory primarily appeals to resemblance between the respective effects the representation and the object (would) have on our minds. I also propose that his argument for the resemblance-requirement of (...) representation depends on the causal likeness principle, and clarify its role in Foucher’s theory. Second, I show that his main interest lies with representation in the sense of truthfully making the object present. Accordingly, when Foucher concludes that we can only represent our own ideas, he merely means that our ideas reveal the ways objects affect us through our senses, as opposed to how they are in themselves. (shrink)

In this paper, I raise and analyze two rarely discussed stories about the development of idealism in early modernity. I seek to show that Arthur Collier reaches the conclusion that the mind-indepen...

This paper addresses the ethical issues of secondary uses of samples collected for identification purposes following mass disasters. It studies norms governing secondary use of samples , ultimately concluding that limited secondary research uses of these samples should be permissible.

Open science has recently gained traction as establishment institutions have come on-side and thrown their weight behind the movement and initiatives aimed at creation of information commons. At the same time, the movement's traditional insistence on unrestricted dissemination and reuse of all information of scientific value has been challenged by the movement to strengthen protection of personal data. This article assesses tensions between open science and data protection, with a focus on the GDPR.

Currently, the return of results in the domain of biobanking constitutes an ethical and legal quagmire, whether it involves population or specific clinical research studies. In light of the fact that population biobanks are often not seen as distinct from those biobanks created for disease research, as well as the uncertainty as to what “return of results” means concretely, this lexicon attempts to demystify the terminology. The terms — results, return, clinical significance, and utility — are discussed. Through an analysis (...) of international and national normative guidance on this issue, the authors propose a concordance of meaning and a simplified lexicon. (shrink)

The last few years have witnessed the growth of large-scale, population genomics biobanks, which serve as longitudinal, gene-environment databases for future yet unspecified research. An international consortium, the Public Population Project in Genomics, builds harmonization tools for such biobanks and has catalogued numerous studies — at least 139 with over 10,000 banked participants and 34 with over 100,000. As their potential use for translational, clinical research draws near, it is opportune to clarify the duties of such biobanks to communicate results (...) to participants. To identify the potential obligations, some demystification of the terminology surrounding the return of results as found in international and national norms on biobanking generally is essential. On the whole, our proposed lexicon is based on a study of norms as found in national and international policies but excludes debates found in the literature. (shrink)

The article “Ethical Responsibilities for Companies that Process Personal Data” (McCoy et al. 2023) provides a principled and pragmatic ethical framework for companies collecting, sharing, and usin...