Free will is usually defined by three conditions: the ability to do otherwise; control of one’s own choices; responsiveness to reasons. The compatibility of free will with determinism lies at the heart of the philosophical debate at the metaphysical level. This debate, while being increasingly refined, has not yet reached a conclusion. Recently, neuroscience and empirical psychology have tried to settle the problem of free will with a series of experiments that go in the direction of so-called (...) illusionism: free will as the conscious control of our behavior cannot exist, being a mere illusion. But even in this case, the experimental results are challenged at various levels. Considering that in most moral and legal systems, the subject’s liability derives from their freedom, the usefulness of preserving the concept of freedom – which incidentally responds to a very strong commonsensical intuition – suggests the need for an operational solution. This could be done by resorting to the concepts of capacity and cognitive control, which are measured by a set of well-established neuropsychological tests. Our preliminary proposal is to create an index, the first step towards a specific quantification and measurement of free will, to be used especially in ethical and legal contexts. Theoretical premises, practical difficulties and objections to this approach are also discussed and addressed. (shrink)

This paper presents experimental data relevant to understanding the modal free choice effect (Kamp, 1973) when there are more than two disjuncts under the relevant modal operator. The results suggest that speakers' willingness to draw free choice inferences is correlated with whether the embedded disjuncts are *modally separable*, in a sense brought into focus by considering cases within which the relevant propositions fail to be pairwise redundant but are redundant as a set.

The article proposes an analysis of imperatives and possibility and necessity statements that (i) explains their differences with respect to the licensing of free choice any and (ii) accounts for the related phenomena of free choice disjunction in imperatives, permissions, and statements. Any and or are analyzed as operators introducing sets of alternative propositions. Free choice licensing operators are treated as quantifiers over these sets. In this way their interpretation can be sensitive to the (...) alternatives any and or introduce in their scope. (shrink)

This thesis concerns the measurement of freedom, and its value. Specifically, I am concerned with three overarching questions. First, can we measure the extent of an individual’s freedom? It had better be that we can, otherwise much ordinary and intuitive talk that we would like to vindicate – say, about free persons being freer than slaves – will turn out to be false or meaningless. Second, in what ways is freedom valuable, and how is this value measured? It (...) matters, for example, whether freedom is valuable only insofar as it enables us to pursue specific ends we happen to value for independent reasons, or whether it is also valuable in itself. In the latter case, but not the former, more freedom will always be better. Likewise, it’s important to get clarity on what ends, exactly, freedom is especially instrumentally valuable in promoting, since this goes to how much we should care about it. And finally, the liberal political tradition asserts that there is a special sphere of personal choices within which individuals should be free to do as they please, for reasons over and above the value of freedom itself. Now, can we measure the extent to which states and individuals respect individual liberties, and can we weigh the importance of respecting liberty against competing values like social welfare? To answer these questions, I follow the axiomatic tradition of social choice theory, and I develop several novel measures of freedom – including the first measure of freedom ever proposed that is sensitive to how modally robustly our options are available – a novel approach to measuring the diversity of an opportunity set, and I develop an account of the value of freedom according to which an important part of why freedom matters is that it enables us to improve our preferences through learning, and I construct ways of measuring the value of freedom along this dimension of value. Finally, in later chapters, I provide a representation result for a measure of illiberalism, i.e. of the degree to which states fail to respect the rights of their citizens, and I extend this result to provide a characterization of moral theories that express concern for respecting the rights of others. The final chapter closes by discussing how this concern may be weighed against concerns for social welfare. (shrink)

Free Choice is the principle that possibly p or q implies and is implied by possibly p and possibly q. A variety of recent attempts to validate Free Choice rely on a nonclassical semantics for disjunction, where the meaning of p or q is not a set of possible worlds. This paper begins with a battery of impossibility results, showing that some kind of nonclassical semantics for disjunction is required in order to validate Free (...) class='Hi'>Choice. The paper then provides a positive account of Free Choice, by identifying a family of dynamic semantics for disjunction that can validate the inference. On all such theories, the meaning of p or q has two parts. First, p or q requires that our information is consistent with each of p and q. Second, p or q narrows down our information by eliminating some worlds. It turns out that this second component of or is well behaved: there is a strongest such meaning that p or q can express, consistent with validating Free Choice. The strongest such meaning is the classical one, on which p or q eliminates any world where both p and q are false. In this way, the classical meaning of disjunction turns out to be intimately related to the validity of Free Choice. (shrink)

We propose a modification of the exhaustivity operator from Fox Presupposition and implicature in compositional semantics, Palgrave Macmillan, London, pp 71–120, 2007. https://doi.org/10.1057/9780230210752_4) that on top of negating all the Innocently Excludable alternatives affirms all the ‘Innocently Includable’ ones. The main result of supplementing the notion of Innocent Exclusion with that of Innocent Inclusion is that it allows the exhaustivity operator to identify cells in the partition induced by the set of alternatives whenever possible. We argue for this property of (...) ‘cell identification’ based on the simplification of disjunctive antecedents and the effects on free choice that arise as the result of the introduction of universal quantifiers. We further argue for our proposal based on the interaction of only with free choice disjunction. (shrink)

One point that definitions of art experience disagree about is whether this kind of experience is qualitatively different from experiences related to ordinary objects and everyday contexts. Here, we follow an ecological approach assuming that art experience has its own specific quality that is, not least, determined by typical contexts of art presentation. Practically, we systematically observe typical phenomena of experiencing art in ecologically valid or real-world settings such as museum contexts. Based on evidences gained in this manner, we (...) emulate and implement essential properties of ecological contexts (e.g., free choice of viewing distance and time, large scale of artworks and exhibition-like context) in controlled laboratory experiments. We found, for instance, that for large scale paintings by Pollock and Rothko preferred viewing distances as well as distances inducing most intense art experiences including Aesthetic Aha insights were much larger than typical viewing distances realized in lab studies. Following Carbon’s (2019) terminology of measurement strategies of art experience, the combined use of “Path #1” (real-world context) and “Path #2” (mildly controlled, still ecologically valid settings and contexts), enables us to understand and investigate much closer what is really happening when people experience art. (shrink)

In this paper, we present the results of the construction and validation of a new psychometric tool for measuring beliefs about free will and related concepts: The Free Will Inventory (FWI). In its final form, FWI is a 29-item instrument with two parts. Part 1 consists of three 5-item subscales designed to measure strength of belief in free will, determinism, and dualism. Part 2 consists of a series of fourteen statements designed to further explore the complex network (...) of people’s associated beliefs and attitudes about free will, determinism, choice, the soul, predictability, responsibility, and punishment. Having presented the construction and validation of FWI, we discuss several ways that it could be used in future research, highlight some as yet unanswered questions that are ripe for interdisciplinary investigation, and encourage researchers to join us in our efforts to answer these questions. (shrink)

The nature of choice and its relation to events in the material world are the subjects of this chapter. In pointing out the relative infrequency of the need to make choices, Clive Staples Lewis' seems to have understood how the making of them now reduces the need for them in the future. Lewis believed the regularity of nature is required for the making of undetermined choices that directly or indirectly cause events in the material world. Lewis concluded that our (...) thinking produces material events that are miraculous in the sense that they would not have occurred had nature proceeded on her own. He also concluded that someone who grasps what the topic of miracles is really about understands that there is nothing per se problematic with divine miracles. Finally, the chapter sets forth an important naturalistic argument against libertarian freedom and explains how Lewis would have responded to it. (shrink)

Orthodox semantics for natural language modals give rise to two puzzles for their interactions with disjunction: Ross’s puzzle and the puzzle of free choice permission. It is widely assumed that each puzzle can be explained in terms of the licensing of ‘Diversity’ inferences: from the truth of a possibility or necessity modal with an embedded disjunction, hearers infer that each disjunct is compatible with the relevant set of worlds. I argue that Diversity inferences are too weak to explain (...) the full range of data. Instead, I argue, modals with embedded disjunctions license ‘Independence’ inferences: from the truth of a modal with an embedded disjunction, hearers infer that each disjunct is an independent alternative among the relevant set of worlds. I then develop a bilateral inquisitive semantics for modals that predicts the validity of these Independence inferences. My account vindicates common intuitions about both Ross’s puzzle and the puzzle of free choice permission, and explains the full range of data. (shrink)

The concepts of choice, negation, and infinity are considered jointly. The link is the quantity of information interpreted as the quantity of choices measured in units of elementary choice: a bit is an elementary choice between two equally probable alternatives. “Negation” supposes a choice between it and confirmation. Thus quantity of information can be also interpreted as quantity of negations. The disjunctive choice between confirmation and negation as to infinity can be chosen or not in (...) turn: This corresponds to set-theory or intuitionist approach to the foundation of mathematics and to Peano or Heyting arithmetic. Quantum mechanics can be reformulated in terms of information introducing the concept and quantity of quantum information. A qubit can be equivalently interpreted as that generalization of “bit” where the choice is among an infinite set or series of alternatives. The complex Hilbert space can be represented as both series of qubits and value of quantum information. The complex Hilbert space is that generalization of Peano arithmetic where any natural number is substituted by a qubit. “Negation”, “choice”, and “infinity” can be inherently linked to each other both in the foundation of mathematics and quantum mechanics by the meditation of “information” and “quantum information”. (shrink)

Measuring the effectiveness of medical interventions faces three epistemological challenges: the choice of good measuring instruments, the use of appropriate analytic measures, and the use of a reliable method of extrapolating measures from an experimental context to a more general context. In practice each of these challenges contributes to overestimating the effectiveness of medical interventions. These challenges suggest the need for corrective normative principles. The instruments employed in clinical research should measure patient-relevant and disease-specific parameters, and should not be (...) sensitive to parameters that are only indirectly relevant. Effectiveness always should be measured and reported in absolute terms (using measures such as 'absolute risk reduction'), and only sometimes should effectiveness also be measured and reported in relative terms (using measures such as 'relative risk reduction')-employment of relative measures promotes an informal fallacy akin to the base-rate fallacy, which can be exploited to exaggerate claims of effectiveness. Finally, extrapolating from research settings to clinical settings should more rigorously take into account possible ways in which the intervention in question can fail to be effective in a target population. (shrink)

This article shows that the concept of choice is central to Isaiah Berlin’s liberalism. It argues that his valuing of choice is anchored in a particular conception of human nature, one that assumes and presupposes free will. Berlin’s works sketch a metaphysics of choice, and his reluctance to situate himself openly in the debate on free will is unconvincing. By introducing the theory of autopoiesis, this article further suggests that there is a way to take (...) Berlin’s value pluralism seriously, by considering sets of values as autopoietic conscious systems. Drawing on the works of Maturana and Varela in biology and Luhmann in sociology, autopoiesis strengthens value pluralism and acts as a critique of liberalism. By putting objectivity in parenthesis, autopoiesis finally allows for value systems to coexist side by side in a stronger sense than Berlin’s liberalism ever could. (shrink)

The standard topological representation of a Boolean algebra via the clopen sets of a Stone space requires a nonconstructive choice principle, equivalent to the Boolean Prime Ideal Theorem. In this article, we describe a choice-free topological representation of Boolean algebras. This representation uses a subclass of the spectral spaces that Stone used in his representation of distributive lattices via compact open sets. It also takes advantage of Tarski’s observation that the regular open sets of any topological space (...) form a Boolean algebra. We prove without choice principles that any Boolean algebra arises from a special spectral space X via the compact regular open sets of X; these sets may also be described as those that are both compact open in X and regular open in the upset topology of the specialization order of X, allowing one to apply to an arbitrary Boolean algebra simple reasoning about regular opens of a separative poset. Our representation is therefore a mix of Stone and Tarski, with the two connected by Vietoris: the relevant spectral spaces also arise as the hyperspace of nonempty closed sets of a Stone space endowed with the upper Vietoris topology. This connection makes clear the relation between our point-set topological approach to choice-free Stone duality, which may be called the hyperspace approach, and a point-free approach to choice-free Stone duality using Stone locales. Unlike Stone’s representation of Boolean algebras via Stone spaces, our choice-free topological representation of Boolean algebras does not show that every Boolean algebra can be represented as a field of sets; but like Stone’s representation, it provides the benefit of a topological perspective on Boolean algebras, only now without choice. In addition to representation, we establish a choice-free dual equivalence between the category of Boolean algebras with Boolean homomorphisms and a subcategory of the category of spectral spaces with spectral maps. We show how this duality can be used to prove some basic facts about Boolean algebras. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:James S. Mullican DETERMINISM, FATALISM, AND FREE WILL IN HAWTHORNE A recurrent theme in Nathaniel Hawthorne's writing is the relationship between fatalism and free will. His tales, romances, and notebooks contain explicit and implied references to man's freedom of choice and his consequent responsibility for his acts, as well as to "fatalities" that impel men to various courses of action. Much of the ambiguity in Hawthorne's (...) fiction rests on this conflict between the notions of human freedom and responsibility on one hand and fatalism on the other. Although there is no question that this theme was important for Hawthorne, there is much disagreement concerning what Hawthorne himself believed. Critics have taken virtually every position on the spectrum between the poles of complete freedom and complete fatalism. That this disagreement exists should not be surprising. Hawthorne was an artist, not a philosopher or theologian; an important element of his technique, perhaps essential to his vision of life, was his ambiguity. His dual vision of the world, of matter and spirit, of evil and good, and his emphasis now of one, now of the other, engender disagreement concerning his view of life. His alternate fascination with and apparent rejection of Puritanism have led some to believe he was a predestinarían, others to hold that he was a "libertarian," and at least one critic to write that Hawthorne believed in a "modified predestination." Turner argued that Hawthorne's attitude toward reform led him to fatalistic thinking. Since reform movements touched only the surface manifestations of vice, such movements were useless, in Hawthorne's view. The logical conclusion of such a position, reasoned Turner, was fatalism. "Hence reform which would stir only the superficial outcroppings and would leave untouched the real causes underneath would be futile at best. And since the true sources of evil, so Hawthorne thought, lie largely beyond the reach of human efforts, fatalism was the certain end of his thinking." Turner saw evidence for fatalism 91 92Philosophy and Literature in Hawthorne's fiction also: "... there is a clear suggestion that the decisions [by Hester, Dimmesdale, Rappaccini, Ethan Brand, and Hollingsworth] have been inevitable, that the agent responsible is fate rather than Hawthorne's character." This critic concluded that Hawthorne was convinced that "the universe, including man and man's soul, is governed by inexorable law." Some critics have linked Hawthorne's beliefs regarding free will and fatalism to his attitude toward Calvinism. Schneider wrote, "... Hawthorne translated into empirical truths the essential doctrines of Calvinism.... From the popular doctrine of reform, he returned to the Puritan doctrine of divine sovereignty." Schneider suggested that Hawthorne purified the doctrines of the Puritans and returned them to their original purpose, salvation of the soul. "He recovered what Puritans professed but seldom practiced—the spirit of piety, humility, and tragedy in the face of the inscrutable ways of God." Cowley wrote that Hawthorne "believed in predestination, as the Calvinists did." Mills was of the opinion that Hawthorne was the most sympathetic to the Puritans of the writers of his day, but that Calvinist dogma was moderated and softened in Hawthorne: "He did not accept completely the Calvinist doctrine of predestination, nor did he emphasize the supreme sovereignty of God which was the driving force of Calvinism." Other critics have granted some measure of freedom to Hawthorne's characters. Arvin wrote, "... freedom of choice exists, but on so narrow a basis that, once exercised in the wrong direction, it is forever resigned." Fairbanks held that Hawthorne reserved to man the initial moral choice which set up the chain of necessity, and from that notion Fairbanks drew the conclusion that, "Though often called a fatalist, Hawthorne believed in free will." Schwartz, in an unpublished doctoral dissertation, argued from Hawthorne's life and from his writings that he rejected fatalism in favor of free will. Wagenknecht noted that Hawthorne refused "to accept foreordination and total depravity." Still other critics have emphasized a paradoxical element in Hawthorne 's writing, his acceptance of both horns of the dilemma. Waggoner wrote: "He saw man as immersed in a mystery in which responsibility is at odds with fate. His own natural tendency was to emphasize causation at the... (shrink)

ABSTRACT: This paper serves two purposes: (i) it can be used by students as an introduction to chapters 1-5 of book iii of the NE; (ii) it suggests an answer to the unresolved question what overall objective this section of the NE has. The paper focuses primarily on Aristotle’s theory of what makes us responsible for our actions and character. After some preliminary observations about praise, blame and responsibility (Section 2), it sets out in detail how all the key notions (...) of NE iii 1-5 are interrelated (Sections 3-9). The setting-out of these interconnections makes it then possible to provide a comprehensive interpretation of the purpose of the passage. Its primary purpose is to explain how agents are responsible for their actions not just insofar as they are actions of this kind or that, but also insofar as they are noble or base: agents are responsible for their actions qua noble or base, because, typically via choice, their character dispositions are a causal factor of those actions (Section 10). The paper illustrates the different ways in which agents can be causes of their actions by means of Aristotle’s four basic types of agents (Section 11). A secondary purpose of NE iii 1-5 is to explain how agents can be held responsible for consequences of their actions (Section 12), in particular for their character dispositions insofar as these are noble or base, i.e. virtues or vices (Section 13). These two goals are not the only ones Aristotle pursues in the passage. But they are the ones Aristotle himself indicates in its first sentence and summarizes in its last paragraph; and the ones that give the passage a systematic unity. The paper also briefly consider the issues of freedom-to-do-otherwise, free choice and free-will in the contexts in which they occur (i.e. in the final paragraphs of Sections 6, 7, 12, 13). (shrink)

This book presents an exploration of the idea of the common or social good, extended so that alternatives with different populations can be ranked. The approach is, in the main, welfarist, basing rankings on the well-being, broadly conceived, of those who are alive. The axiomatic method is employed, and topics investigated include: the measurement of individual well-being, social attitudes toward inequality of well-being, the main classes of population principles, principles that provide incomplete rankings, principles that rank uncertain alternatives, best (...) choices from feasible sets, and applications. The chapters are divided, with mathematical arguments confined to the second part. The first part is intended to make the arguments accessible to a more general readership. Although the book can be read as a defense of the critical-level generalized-utilitarian class of principles, comprehensive examinations of other classes are included. (shrink)

As consistency is such an important topic in logic, researchers have for a long time investigated how to attain and maintain it. But consistency can also be studied from the point of view of its opposite, inconsistency. The problem with inconsistency in classical logic is that by the principle of explosion a single inconsistency leads to triviality. Paraconsistent logics were introduced to get around this problem by defining logics in such a way that the explosion principle does not apply to (...) them. Another approach stays in the classical framework and evaluates the amount of inconsistency in a set of formulas. The great bulk of this work has been done for propositional logic and presents many interesting issues about inconsistency. A previous paper introduced the concept of generalized propositional logic (GPL) to provide a uniform method for measuring inconsistency in logics that allow the application of unary operator pairs, such as for modality, time, and space, to propositional logic formulas. The universality of GPL manifests itself in the fact that such an operator pair is evaluated in a uniform manner across all such logics. The difference lies solely in the choice of a frame for each logic. But some logics also contain nonunary operators. For example, temporal logics typically contain a binary Until operator. The purpose of this paper is to show how to extend generalized propositional logic to extended generalized propositional logic (EGPL) by adding nonunary operator pairs and measure inconsistency in such logics. The universality of EGPL manifests itself in the fact that once the evaluation of the nonunary operators is given, it carries over to all such logics. For example, the temporal Until operator becomes applicable to modal logic. Furthermore, while relative inconsistency measures were previously considered for GPL, they are now extended to EGPL and a new approach removes an undesirable feature from the previous version. Also, this paper provides results about various properties of the new inconsistency measures. Many examples and explanations are given to illustrate the issues involving this extension. (shrink)

For the successful achievement of evidence-based practice, clinicians, managers and purchasers need evidence on whether a particular intervention works and ways to judge the appropriateness of the outcome criteria and measures used. Guidance is needed on what outcome measure to use, especially within routine clinical care settings. Beginning with a re-clarification of the difference between a health status and an outcome measure, the paper presents an evaluative checklist for use by clinical audit and research staff to review outcome measures (...) for use in routine care settings. Central features include the user-centredness of the measure, its psychometric properties, feasibility of use and utility. The applicability of the checklist is illustrated for outcome measurement in diabetes and stroke care. A modified form of the checklist is proposed for use by the busy clinician as an aid to the critical review of research papers within the context of evidence-based practice and to aid health care practitioners' choice of which outcome measure(s) to use within routine clinical care. (shrink)

Recently highly-efficient quantum engines were devised by exploiting the stochastic energy changes induced by quantum measurement. Here we show that such an engine can be based on an interaction-free measurement, in which the meter seemingly does not interact with the measured object. We use a modified version of the Elitzur–Vaidman bomb tester, an interferometric setup able to detect the presence of a bomb triggered by a single photon without exploding it. In our case, a quantum bomb subject (...) to a gravitational force is initially in a superposition of being inside and outside one of the interferometer arms. We show that the bomb can be lifted without blowing up. This occurs when a photon traversing the interferometer is detected at a port that is always dark when the bomb is located outside the arm. The required potential energy is provided by the photon even though it was not absorbed by the bomb. A natural interpretation is that the photon traveled through the arm which does not contain the bomb—otherwise the bomb would have exploded—but it implies the surprising conclusion that the energy exchange occurred at a distance despite a local interaction Hamiltonian. We use the weak value formalism to support this interpretation and find evidence of contextuality. Regardless of interpretation, this interaction-free quantum measurement engine is able to lift the most sensitive bomb without setting it off. (shrink)

Since our theory of morals is part of rational choice, we must examine its apparatus and assumptions, beginning from the underlying idea that an agent chooses rationally in maximizing her utility, considered as a measure of her preferences. However, we reject the purely behavioural view of preference held by some economists, arguing that rational choice depends on considered preferences that have both a behavioural and an attitudinal dimension, and are based on adequate experience and reflection. We set out (...) the formal conditions on preferences that are required to define utility as an interval measure. We then turn to the claim that utility represents value, defending a conception of value that is subjective, dependent on affective relationships, and relative to each individual. (shrink)

In an earlier article in this journal I argued that the question of whether heroin addicts can give voluntary consent to take part in research which involves giving them a choice of free heroin does not – in contrast with a common assumption in the bioethics literature – depend exclusively on whether or not they possess the capacity to resist their desire for heroin. In some cases, circumstances and beliefs might undermine the voluntariness of the choices a person (...) makes even if they do possess a capacity for self-control. Based on what I took to be a plausible definition of voluntariness, I argued that the circumstances and beliefs typical of many vulnerable heroin addicts are such that we have good reasons to suspect they cannot give voluntary consent to take part in such research, even assuming their desire for heroin is not irresistible. In a recent article in this journal, Uusitalo and Broers object to this on the grounds that I misdescribe heroin addicts' options set, that the definition of voluntariness on which I rely is unrealistic and too demanding, and, more generally, that my view of heroin addiction is flawed. I think their arguments derive from a misunderstanding of the view I expressed in my article. In what follows I hope therefore to clarify my position. (shrink)

This paper reports the results of an experiment designed to uncover the stochastic structure of individual preferences over lotteries. Unlike previous experiments, which have presented subjects with pair-wise choices between lotteries, our design allowed subjects to choose between two lotteries or (virtually) any convex combination of the two lotteries. We interpret the mixtures of lotteries chosen by subjects as a measure of the stochastic structure of choice. We test between two alternative interpretations of stochastic choice: the random utility (...) interpretation and the deterministic preferences interpretation. The main findings of the experiment are that the typical subject prefers mixtures of lotteries rather than the extremes of a linear lottery choice set. The distribution of choices does not change between a first and second asking of the same question. We argue that this provides support for the deterministic preferences interpretation over the random utility interpretation of stochastic choice. As a subsidiary result, we find a small proportion of subjects make choices that violate transitivity, but the level of intransitive choice falls significantly over time. (shrink)

A major approach to the ethics of artificial intelligence is to use social choice, in which the AI is designed to act according to the aggregate views of society. This is found in the AI ethics of “coherent extrapolated volition” and “bottom–up ethics”. This paper shows that the normative basis of AI social choice ethics is weak due to the fact that there is no one single aggregate ethical view of society. Instead, the design of social choice (...) AI faces three sets of decisions: standing, concerning whose ethics views are included; measurement, concerning how their views are identified; and aggregation, concerning how individual views are combined to a single view that will guide AI behavior. These decisions must be made up front in the initial AI design—designers cannot “let the AI figure it out”. Each set of decisions poses difficult ethical dilemmas with major consequences for AI behavior, with some decision options yielding pathological or even catastrophic results. Furthermore, non-social choice ethics face similar issues, such as whether to count future generations or the AI itself. These issues can be more important than the question of whether or not to use social choice ethics. Attention should focus on these issues, not on social choice. (shrink)

In ‘Normative Uncertainty as a Voting Problem’, William MacAskill argues that positive credence in ordinal-structured or intertheoretically incomparable normative theories does not prevent an agent from rationally accounting for her normative uncertainties in practical deliberation. Rather, such an agent can aggregate the theories in which she has positive credence by methods borrowed from voting theory—specifically, MacAskill suggests, by a kind of weighted Borda count. The appeal to voting methods opens up a promising new avenue for theories of rational choice (...) under normative uncertainty. The Borda rule, however, is open to at least two serious objections. First, it seems implicitly to ‘cardinalize’ ordinal theories, and so does not fully face up to the problem of merely ordinal theories. Second, the Borda rule faces a problem of option individuation. MacAskill attempts to solve this problem by invoking a measure on the set of practical options. But it is unclear that there is any natural way of defining such a measure that will not make the output of the Borda rule implausibly sensitive to irrelevant empirical features of decision-situations. After developing these objections, I suggest an alternative: the McKelvey uncovered set, a Condorcet method that selects all and only the maximal options under a strong pairwise defeat relation. This decision rule has several advantages over Borda and mostly avoids the force of MacAskill’s objection to Condorcet methods in general. (shrink)

BackgroundHuman female orgasm is a vexed question in the field while there is credible evidence of cryptic female choice that has many hallmarks of orgasm in other species. Our initial goal was to produce a proof of concept for allowing females to study an aspect of infertility in a home setting, specifically by aligning the study of human infertility and increased fertility with the study of other mammalian fertility. In the latter case - the realm of oxytocin-mediated sperm retention (...) mechanisms seems to be at work in terms of ultimate function while the proximate function remains unresolved.MethodA repeated measures design using an easily taught technique in a natural setting was used. Participants were a small, non-representative sample of females. The introduction of a sperm-simulant combined with an orgasm-producing technique using a vibrator/home massager and other easily supplied materials.ResultsThe sperm flowback (simulate... (shrink)

We show that the Axiom of Countable Choice is necessary and sufficient to prove that the existence of a Borel measure on a pseudometric space such that the measure of open balls is positive and finite implies separability of the space. In this way a negative answer to an open problem formulated in Górka (Am Math Mon 128:84–86, 2020) is given. Moreover, we study existence of maximal $$\delta$$ δ -separated sets in metric and pseudometric spaces from the point (...) of view the Axiom of Choice and its weaker forms. (shrink)

The half-open real unit interval an automorphism-invariant positive normalized linear functional onH. SinceHis representable as a uniformly dense set of continuous functions on its maximal spectrum, such functionals—in this context usually called states—amount to automorphism-invariant finite Borel measures on the spectrum. Different choices for the unit may be algebraically unrelated, but our second main result shows that the corresponding measures are always absolutely continuous w.r.t. each other, and provides an explicit expression for the reciprocal density.

This thesis concerns alternative concatenating operations in extensive measurements and the degree to which concatenating operations are matter of convention. My arguments are directed against Ellis' claim that what prevents us from choosing alternative ways of combining extensive quantities is only convenience and simplicity and that the choice is not based on empirical reasons. ;My first argument is that, given certain relational theories of measurement, there can be no more than one concatenating operation per quantity; because combining operations (...) are the only conclusive distinguishing characteristic among distinct extensive measurements and thus the only thing that can serve as an indicator for the identity of a quantity. Rectangular and collinear concatenation, for example, cannot both be used as a way of combining lengths. However, rectangular concatenation could be used to measure some other extensive quantity since it fulfills the necessary conditions for adequate numerical assignment. ;For those that adopt theories of measurement which can support the claim that dinches measure length, I demonstrate, in the second argument, that rectangular concatenation would be a bad alternative and thus no alternative at all. Implementation of rectangular concatenation requires a new science; a science compatible with dinches violates present invariance principles and a new set must be provided, if possible. It is not clear that there is a set of invariance principles compatible with dinches which also gives basis for a science that explains the phenomena as well as the old one. Moreover, new invariance principles would be unintuitive and would require that certain fundamental concepts change their meaning. For these reasons the choice between them is guided by a number of empirical reasons and is not only a matter of convention. (shrink)

Controlling Natality - the ratio of births to the general population - is one of the best means a state has to control its demographic composition. However, the fact that the state has certain interests with regard to the size and composition of its population does not necessarily give it the right to set and pursue natality policies, because such policies can potentially infringe on various human rights such as the rights of women and the rights of minorities. Using a (...) feminist perspective I first argue that even if it is illegitimate for states to try to influence people's choice as to the number of their children in order to achieve demographic change, the state may, and should, enact natality policies aimed at promoting women's right to equality, regardless of whether their end result is to achieve a demographic change. Next I examine whether states are allowed to pursue natality policies that are aimed at decreasing natality rates in specific cultural groups, whose cultural precepts are oppressive to women and dictate very high natality rates. Using the ultra orthodox Jewish community in Israel as a test case, I present and reject three objections to the state's right to pursue such natality policies: the objection from free choice, the objection from free association, and the objection from culture. Rejecting these objections I conclude that not only is the state allowed, but it is indeed obligated, to pursue natality policies that aim to alleviate the oppression of women by decreasing inordinately high birth rates in illiberal communities. However, when choosing the measures for the implementation of such policies the state must take care to choose only measures that respect human rights. (shrink)

An empirically based view of size and distance perceptual content and phenomenology is introduced, in which perceivers measure worldly size and distance against their bodies. Central principles of the formal, representational theory of the measurement of extensive magnitudes are then applied in framing the account in a precise way. The question of whether spatial-perceptual experience is “unit-free” is clarified. The framework is used to assess Dennis Proffitt's proposal that spatial setting is perceived in various “units,” “scales,” or “rulers”, (...) some of them non-spatial—distance in terms of calories burned to traverse and the like. The debate between Proffitt and Firestone about the commensurability of differing measurement scales held by Proffitt to be relied on by perceivers is then clarified and resolved. Finally, the measurement theory framed account of size and distance perception is used to illuminate Gibson’s famous but elusive contrasts between “geometrical optics” and “ecological optics” and between the “physical world” and the “animal environment”. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Human Rights and Women's RightsAngela KnobelMainstream feminists insist, with a degree of unanimity that is sometimes surprising, that access to abortion is an essential precondition of female equality. That feminism, which is in other respects so flexible, inclusive, and uncategorizable, should be so unyielding with respect to this particular issue seems surprising to many. It is especially surprising to those who, while sympathetic to other feminist goals, also oppose (...) abortion.1 Why is access to abortion so important? Why must one's views about the equality of women stand or fall on one's views about the value of unborn human life? If feminism has to have a flagship issue, why must that issue be abortion? In this paper, I will propose that Pierre Manent's Natural Law and Human Rights offers a possible answer to this question. I will argue that, to the extent that mainstream feminism assumes the truth of what Manent calls the "philosophy of human rights," it cannot not advocate abortion access. Similarly, I will argue that pro-life feminist attempts to defend the contrary position—namely, that abortion is antithetical to feminism—invariably assume the natural law that the philosophy of human rights rejects. My argument, if correct, suggests the pivot point in discussions of abortion and feminism occurs much further back than many acknowledge: in our very understanding of ourselves and our place in the world.In what follows I will first briefly summarize Manent's account of what he calls the "philosophy of human rights." With this background in place, [End Page 275] I will consider the mainstream feminist claim that access to abortion is a necessary precondition of female equality. When "equality" is understood through the lens of the philosophy of human rights, I argue, the mainstream feminist insistence on access to abortion becomes coherent: a feminism that assumes the truth of the philosophy of human rights cannot not insist on access to abortion. The pro-life feminist reply that abortion harms and oppresses women, by contrast, is coherent only to the extent one assumes the framework of natural law.2Natural Law or Human Rights?To believe in natural law is to believe that nature itself sets the standard for human life. What the "law" commands is simply action necessary for the realization of the potential implicit in our nature. Under such a framework, Manent notes, "natural inclinations and natural differences, if they exist, constitute a kind of language of nature."3 The fact that human beings are naturally rational or naturally social, or that biological males are (typically) attracted to biological women, helps provide insight into nature's "law": "Natural law issued commands in the name of a teaching implicit in human nature, in a tendency of human nature to society and to knowledge, or in a natural difference among ages, sexes, and capacities, a tendency or difference that reason once made explicit and on the basis of which it founded its commandments and recommendations."4 Nature's laws can be and frequently are violated: cultures or individuals can choose to live up to nature's laws or not. For this reason, Manent says that, under the traditional framework of natural law, human beings are "free under the law."5 Natural law is something we freely choose to follow or freely choose to reject, but because it stems from our human nature, it does not cease to bind even those who reject it.The philosophy of human rights, by contrast, accepts the notion of freedom but rejects the notion of any overarching "law" against which our free choices are to be measured. While the philosophy of natural law is rooted in the language of nature, and thus sees human beings as free "under the law" of nature, the philosophy of human rights puts freedom prior to [End Page 276] law and recognizes law only as a means of preserving freedom.6 While the philosophy of natural law understands individual human beings in terms of their human nature, and thus in terms of their natural inclinations and natural differences, the philosophy of human rights rejects the language of "nature" in favor of an "impoverished common denominator," namely equality... (shrink)

We mainly investigate models of set theory with restricted choice, e.g., ZF + DC + the family of countable subsets of $$\lambda$$ is well ordered for every $$\lambda$$ (really local version for a given $$\lambda$$ ). We think that in this frame much of pcf theory, (and combinatorial set theory in general) can be generalized. We prove here, in particular, that there is a proper class of regular cardinals, every large enough successor of singular is not (...) measurable and we can prove cardinal inequalities. Solving some open problems, we prove that if $$\mu> \kappa = \textrm{cf}(\mu ) > \aleph _{0},$$ then from a well ordering of $${\mathscr {P}}({\mathscr {P}}(\kappa )) \cup {}^{\kappa >} \mu$$ we can define a well ordering of $${}^{\kappa } \mu.$$. (shrink)

Regardless of unpredictable and contingent geopolitical events such as last year’s surprising rejection of the European Constitution in France and the Netherlands, this coming year will certainly witness a large surge in patriotism. The Winter Olympics in February, and the World Cup in the summer, both promise to whip national sentiments into a fever pitch. One other thing is certain, though: journals of philosophy and ethics will continue to debate the virtues of cosmopolitanism, as this number of Ethical Perspectives does (...) through its contributions below.Why is this? Why do philosophers and academics hold on to this idea of cosmopolitanism, an idea utterly lacking in the convictions of the general public? Is it perhaps because the first cosmopolitans were in fact philosophers? The first to identify himself as a cosmopolitan was Diogenes the Cynic, and Plato’s dialogues paint many of the Sophists in cosmopolitan hues. Although people generally support the idea of internationalism as far as it promotes trade, travel, and football tournaments, once it begins to meddle in internal affairs, as it does with outsourcing and transnational constitutions, they tend to fall back upon the patria. They killed Socrates for corrupting the youth of Athens, not the youth of the world.Whether it is the service and manufacturing industries of Asia and India ‘stealing’ American jobs, or widespread fears of Brussels’ legendary bureaucrats, the non-academic public consistently turns from its tepid embrace of cosmopolitanism to patriotism whenever threatened. Are we too quick to label this as self-interest or even selfishness? Or is there something else at work in the debate between cosmopolitanism and patriotism? Some approaches to cosmopolitanism are certainly guilty of an absolute removal of difference, of wishing away the nation state, of replacing it with an international body based on purely universal principles, and of wiping away the competencies of nations on many levels. The call for the world state can come across as an appeal for an anodyne and internationalist homogeneity based on a clinical morality that, for all its sensitivity, runs roughshod over the well-engrained cultural, legal, and social beliefs of many peoples.Clearly, this is what many Europeans fear, and to a large degree, Americans as well in their dislike for the International Court of Justice. Even the economic hegemony of outsourcing removes national power, and replaces it with pure economic rationality.Our contributors below do not advocate these reductions, although some may point to them. Key to each contribution below is sensitivity to the world as it is, to its need for difference even in the face of an ever-increasing globalisation that sometimes is connected with cosmopolitanism. Yet, every proponent of cosmopolitanism must sketch how it is possible in practice. Of course, an obvious problem is how to dwell consequently as a cosmopolitan. Not many contemporary cosmopolitans would be prepared to follow Diogenes’ commitment to rootlessness: living in exile after having been included in a forgery conviction aimed at his father, the ascetic Diogenes called a barrel his home. Such was his drive to live a levelled life that he cast away his only bowl upon seeing a poor peasant boy drinking from cupped hands. Today’s cosmopolitan leads a much more prosaic life, and hence the problem with cosmopolitanism begins as something mundane. Does not a cosmopolitan still pay national taxes? Does not a cosmopolitan still need a national passport and second country visas? But, the questions quickly turn ontological: how can one shed oneself of one’s nationality, of one’s belonging, as if it is just an accident of one’s own constitution, instead of as an important property of one’s own constitution? In other words, belonging is important: a citizen of the world still values citizenship. Clearly, the absolute cosmopolitan reduction is an absurdity: one is always rooted, in some sense. Even cosmopolitanism is rooted in a specific Western mindset, and is no self-evident preference of human existence.As Rudi Visker’s contribution so clearly shows through an investigation of the narcissism of minor differences, these questions revolve around the question of confrontation with alterity. What I am, in no small way plays off what I am not. I cannot be everything, if I am something. Freud’s analysis of minor differences reveals that members of a group identify with that group on the basis these minor differences. What is self-evident to a particular culture marks that culture off from another culture, a culture that by definition does not share the same set of the self-evident. To be a foreigner, as any ex-patriot can attest, is to stand outside of the self-evident, whether this means interpreting gestures, understanding commercial practices, or, as Freud would have it, staying on the correct side of national taboos. There is thus a dialectic of inner and outer, a dialectic which refuses a reduction of one to the other. As Visker puts it, recognising the stranger within oneself is quite different than recognising the stranger outside of oneself, and to confuse these as being the same is not only to misunderstand the very issue at stake, it is also a dangerous trivialisation of difference.But clearly, there is something viable and laudable in the idea of cosmopolitanism, since it stresses the universal moral community of humanity. Cosmopolitanism is an attempt to see all human subjects as subject to the same moral law. Indeed, the sort of federation to which cosmopolitanism leads, at least in a modified Kantian expression as Bert van Roermund tells us, even gives us good grounds to recognise the legitimacy and moral equivalence of states. Importantly, the international legal order does not draw its power from any supranational force, but from the choice of independent national actors to recognise it. Hence, this cosmopolitan order depends on nationhood, and good standing within this order depends on the degree to which a country decides to participate. Again, the universal here depends on well-rooted particularity, a particularity able to choose for the universal.What do we do, then, with outlaw nations, those nations that are hostile to the choice for the universal? Through a clear reading of Hegel, Paul Cobben proposes that the metric for a state’s legality is the measure to which it permits the moral freedom of its citizens to bloom. A free person requires a free legal order; only in such can a person obtain the full measure of human rights due. States that do not permit this blooming are illegitimate; they contradict the nature of the human person, and citizens dwelling under the yoke of these have the right to ask for outside assistance in removing this illegitimate power above them. However, for this plea to be met, two conditions must obtain: the oppressed people must have the wherewithal to form a political order after the removal of the illegitimate state, and the action must be grounded in the principles and support of a legal community, which in essence would be a world federation of states. In fact, it is morally incumbent upon all legal states to aim at such a world federation, upon pain of contradiction.Our duty to others does not end with the politically oppressed; the economically oppressed also lay a moral claim upon us. So, as Toon Vandevelde asks in his contribution, what about the global poor? The poor are hungry and in need of shelter and a future, but to address these issues at the level of rights is in a way heartless: what good does it do to legislate that everyone has the right to food, when this right can never be called upon, or enforced, in any meaningful sense? Moreover, approaches that demand non-prioritised generosity not only ignore the fundamental economic fact of scarcity, they also run the risk of creating the moral hazard of dependence on charity. The true cosmopolitan approach is the recognition of our common humanity and of our concomitant duty to help others as far as this help does not endanger us. This duty is compounded by the marginalisation of the poor through globalisation, a globalisation that they did not ask for. The extent of our help is indeterminate, but its direction is clear: it must aim to integrate those poor who wish it within our international systems, and so to ease their own transitions from poverty.Both Gil Anidjar and Maria Bonnafous-Boucher continue this theme of economy, but each from a highly specific viewpoint. Indeed, their contributions are perhaps somewhat darker, delving into an aspect of the unspoken underneath the choice for the universal. Anidjar begins with the relation between religion and economy within the interplay of Judaism and Christianity, whereas Bonnafous-Boucher focuses on the development of political economy through a Foucaultian lens. Although highly distinct contributions, both share the insight that the economy is now the central theme of our power structures, and that economy, isolated from questions of morality or justice, must likewise play a decisive role within the structure of cosmopolitanism, or, at minimum, the political unity of peoples. For, national government long ago ceded to a promiscuous mix of governance, and religion to economy. This nexus enthrones governance as an economic rationale stripped of all other trappings, and inscribes any possible cosmopolitanism within a framework of an aggressive capitalism, a kind of economic theology, a kind of hegemony in which state boundaries are essentially liquefied. Capital, after all, knows no boundaries. (shrink)

This article examines Aquinas’s theory of free choice and moral responsibility throughout his De malo and provides a careful analysis of question 6 “on human choice.” We argue that Aquinas here proposes an account of free choice as incompatible with determinism. We also show briefly that Aquinas’s account of the fall of the angels in the De malo confirms our interpretation.

This paper develops a semantic solution to the puzzle of Free Choice permission. The paper begins with a battery of impossibility results showing that Free Choice is in tension with a variety of classical principles, including Disjunction Introduction and the Law of Excluded Middle. Most interestingly, Free Choice appears incompatible with a principle concerning the behavior of Free Choice under negation, Double Prohibition, which says that Mary can’t have soup or salad implies (...) Mary can’t have soup and Mary can’t have salad. Alonso-Ovalle 2006 and others have appealed to Double Prohibition to motivate pragmatic accounts of Free Choice. Aher 2012, Aloni 2018, and others have developed semantic accounts of Free Choice that also explain Double Prohibition. -/- This paper offers a new semantic analysis of Free Choice designed to handle the full range of impossibility results involved in Free Choice. The paper develops the hypothesis that Free Choice is a homogeneity effect. The claim possibly A or B is defined only when A and B are homogenous with respect to their modal status, either both possible or both impossible. Paired with a notion of entailment that is sensitive to definedness conditions, this theory validates Free Choice while retaining a wide variety of classical principles except for the transitivity of entailment. The homogeneity hypothesis is implemented in two different ways, homogeneous alternative semantics and homogeneous dynamic semantics, with interestingly different consequences. (shrink)

A theory of approximation to measurable sets and measurable functions based on the concepts of recursion theory and discrete complexity theory is developed. The approximation method uses a model of oracle Turing machines, and so the computational complexity may be defined in a natural way. This complexity measure may be viewed as a formulation of the average-case complexity of real functions—in contrast to the more restrictive worst-case complexity. The relationship between these two complexity measures is further studied and compared with (...) the notion of the distribution-free probabilistic computation. The computational complexity of the Lebesgue integral of polynomial-time approximable functions is studied and related to the question “FP = ♯P?”. (shrink)

In this paper I examine some of the significant moral concerns inherent in cases of treatment refusal involving patients with psychotic disorders. In particular, I explore the relevance of the principle of autonomy in such situations. After exploring the concept of autonomy and explaining its current and historical significance in a health care setting, I argue that because autonomous choice depends for its existence upon certain human functions such as the ability to reason, judge, and assess consequences, patients cannot (...) be said to be making free and autonomous decisions if these capacities are compromised. I contend further that because psychotic disorders have the potential to compromise these functions in the future, it is appropriate, in some limited cases, to coerce patients with psychotic disorders to undergo treatment in order to preserve their future decisionmaking capacities and to protect their ability to recognize and respect the autonomy of others. (shrink)

A well known logical loophole for Bell’s theorem is that it relies on setting independence: the assumption that the state of a system is independent of the settings of a measurement apparatus probing the system. In this paper the implications of rejecting this assumption are studied from an operationalist perspective. To this end a generalization of the ontic models framework is proposed that allows setting dependence. It is shown that within this framework Bell’s theorem reduces to the conclusion (...) that no-signaling requires randomness at the epistemic level even if the underlying ontology is taken to be deterministic. The ideas underlying the framework are further used to defend setting dependence against the charges of being incompatible with free will and scientific methodology. The paper ends however with the sketch of a new problem for setting dependence: a necessary gap between the ontic and the epistemic level that may prevent the formulation of a successful setting dependent theory. (shrink)

Extant research has shown personality to be a predictor of engagement in academic dishonesty. The current study seeks to determine whether the type of personality measure affects predictive efficacy by comparing single stimulus and forced-choice measures of personality using a sample of 278 undergraduate students in two U.S. universities. Students scoring high on conscientiousness reported as engaging in fewer academic cheating behaviors than those scoring low on conscientiousness regardless of whether conscientiousness was measured using the forced-choice or single (...) stimulus scale format. In addition, the forced-choice and single stimulus measures each contributed significant unique variance to prediction of academic dishonesty. For agreeableness, scores on the single stimulus measure were negatively correlated with academic dishonesty whereas there was a positive relationship found for the forced-choice measure. Overall, the forced-choice format of the Occupational Personality Questionnaire 32r did not show higher validities than the single stimulus IPIP counterpart in predicting self-reported academic dishonesty. Implications for future research and management education are discussed. (shrink)

In a recent paper, Ferraris, Lee and Lifschitz conjectured that the concept of a stable model of a first-order formula can be used to treat some answer set programming expressions as abbreviations. We follow up on that suggestion and introduce an answer set programming language that defines the mean- ing of counting and choice by reducing these constructs to first-order formulas. For the new language, the concept of a safe program is defined, and its semantic role is investigated. We (...) compare the new language with the concept of a disjunc- tive program with aggregates introduced by Faber, Leone and Pfeifer, and discuss the possibility of implementing a frag- ment of the language by translating it into the input language of the answer set solver DLV. The language is also compared with cardinality constraint programs defined by Syrjänen. (shrink)

This paper examines the libertarian account of free choice advanced by Robert Kane in his recent book, The Significance of Free Will. First a rather simple libertarian view is considered, and an objection is raised against it the view fails to provide for any greater degree of agent-control than what could be available in a deterministic world. The basic differences between this simple view and Kane's account are the requirements, on the latter, of efforts of will and (...) of an agent's wanting more to do a certain thing than he wants to do anything else. It is argued here that neither of these features yields any improvement over the simple libertarian view; neither helps to meet the objection that was raised against the simple view. Finally, it is suggested that a modest defense of that view might be available. (shrink)

This paper investigates inquisitive extensions of normal modal logic with an existential modal operator taken as primitive. The semantics of the existential modality is generalized to apply to questions, as well as statements. When the generalized existential modality is applied to a question, the result is a statement that roughly expresses that each way of resolving the question is consistent with the available information. I study the resulting logic both from a semantic and from a proof-theoretic point of view. I (...) argue that it can be used for reasoning about a general notion of ignorance, and for reasoning about choice-offering permissions and obligations. The main technical results are sound and complete axiomatizations, both for the class of all Kripke frames, and for any class of frames corresponding to a canonical normal modal logic. (shrink)

This paper discusses free-choice like effects in generics. Just as Jane may drink coffee or tea can be used to convey Jane may drink coffee and Jane may drink tea (she is free to choose ), some generics with disjunctive predicates can be used to convey conjunctions of simpler generics: elephants live in Africa or Asia can be used to convey elephants live in Africa and elephants live in Asia. Investigating these logically slightly more complex generics and (...) especially the free-choice like effects throws light on both the semantics of generics and the interaction between world knowledge and the interpretive options generics offer. This paper presents a package of semantic and pragmatic hypotheses to account for the data, including why the effect is absent in the superficially logically similar elephants live in Africa or give birth to live young. (shrink)

It is quite plausible to say that you may read or write implies that you may read and you may write (though possibly not both at once). This so-called free choice principle is well-known in deontic logic. Sadly, despite being so intuitive and seemingly innocent, this principle causes a lot of worries. The paper briefly but critically examines leading accounts of free choice permission present in the literature. Subsequently, the paper suggests to accept the free (...) choice principle, but only as a default (or defeasible) rule, issuing to it a ticket-of-leave, granting it some freedom, until it commits an undesired inference. (shrink)

Hans Kamp; IV*—Free Choice Permission, Proceedings of the Aristotelian Society, Volume 74, Issue 1, 1 June 1974, Pages 57–74, https://doi.org/10.1093/aristoteli.

This paper critically discusses two areas of Sahotra Sarkar’s recent work in environmental philosophy : biodiversity and conservation biology and roles for decision theory in incorporating values explicitly in the environmental policy process. I argue that Sarkar’s emphasis on the practices of conservation biologists, and especially the role of social and cultural values in the choice of biodiversity constituents, restricts his conception of biodiversity to particular practical conservation contexts. I argue that life scientists have many reasons to measure many (...) types of diversity, and that biodiversity metrics could be value-free. I argue that Sarkar’s emphasis on the limitations of normative decision theory is in tension with his statement that decision theory can “put science and ethics together.” I also challenge his claim that multi-criteria decision tools lacking axiomatic foundations in preference and utility theory are “without a rational basis,” by presenting a case of a simple “outranking” multi-criteria decision rule that can violate a basic normative requirement of preferences and ask whether there may nevertheless be contexts in which such a procedure might assist decision makers. (shrink)