In this paper I present an argument for the claim that you ought to do something only if you may believe that you ought to do it. More exactly, I defend the following principle about normative reasons: An agent A has decisive reason to φ only if she also has sufficient reason to believe that she has decisive reason to φ. I argue that this principle follows from the plausible assumption that it must be possible for an agent (...) to respond correctly to her reasons. In conclusion, I discuss some implications of this argument (given that some other standard assumptions about reasons hold). One such implication is that we are always in a position to be justified in believing all truths about what we have decisive reason (or ought) to do. (shrink)

Putnam and others have argued that an examination of structures arising in quantum mechanics can lead to a non-classical propositional logic, quantum logic. In this paper it is argued that the procedure by which quantum logic is said to be discovered, a process called reading off, is fundamentally flawed. A parody fable shows that reading off leads to absurd consequences. The fable also leads one to cast doubt on the following claims central to the quantum logic program: (i) logic can (...) be reformed locally; (ii) classical logic is read off classical physics; and (iii) reading off is a justifiable process because quantum logic resolves quantum paradoxes. (shrink)

People frequently gesture when a word is on the tip of their tongue (TOT), yet research is mixed as to whether and why gesture aids lexical retrieval. We tested three accounts: the lexical retrieval hypothesis, which predicts that semantically related gestures facilitate successful lexical retrieval; the cognitive load account, which predicts that matching gestures facilitate lexical retrieval only when retrieval is hard, as in the case of a TOT; and the motor movement account, which predicts that any motor movements (...) should support lexical retrieval. In Experiment 1 (a between‐subjects study; N = 90), gesture inhibition, but not neck inhibition, affected TOT resolution but not overall lexical retrieval; participants in the gesture‐inhibited condition resolved fewer TOTs than participants who were allowed to gesture. When participants could gesture, they produced more representational gestures during resolved than unresolved TOTs, a pattern not observed for meaningless motor movements (e.g., beats). However, the effect of gesture inhibition on TOT resolution was not uniform; some participants resolved many TOTs, while others struggled. In Experiment 2 (a within‐subjects study; N = 34), the effect of gesture inhibition was traced to individual differences in verbal, not spatial short‐term memory (STM) span; those with weaker verbal STM resolved fewer TOTs when unable to gesture. This relationship between verbal STM and TOT resolution was not observed when participants were allowed to gesture. Taken together, these results fit the cognitive load account; when lexical retrieval is hard, gesture effectively reduces the cognitive load of TOT resolution for those who find the task especially taxing. (shrink)

On the difficulty of extracting the logical form of a seemingly simple sentence such as ‘If Andy went to the movie then Beth went too, but only if she found a taxi cab’, with some morals and questions on the nature of the difficulty.

The recent explosion of philosophical papers on Confederate and Colonialist statues centers on a central question: When, if ever, is it permissible to admire a person? This paper contends it’s not just Confederates and slavers whose reputations are on the line, but also pacifists like Martin Luther King, Jr., and Daisy Bates whose commitments to pacifism meant they were unwilling to save others using defensive violence, including others they talked into endangering themselves for the sake of racial equality. Other things (...) being equal, that’s gravely immoral if pacifism is false, and we shouldn’t admire people guilty of grave immorality. So, it appears that we shouldn’t admire Bates or King, which is counterintuitive. To solve this problem, I explore several possibilities: that only selective traits of Bates and King are admirable, that Bates and King are admirable despite their grave immorality, and that Bates and King are admirable by virtue of their integrity. However, each of these proposals fails: the first because it inadequately captures our moral phenomenology (we admire people, not just their traits), the second because it ignores the extent to which gravely immoral commitments are constitutive of a person’s moral character, and the third because we ought not to admire people for acting on their immoral beliefs. The paper concludes, first, that either pacifists like Bates and King aren’t admirable or they are, and the latter presupposes the truth of pacifism. Second, I borrow from Vanessa Carbonell’s ratcheting-up argument from moral sainthood to argue that pacifists like Bates and King provide epistemic defeaters to the objection that pacifism is unreasonably costly. Thus, not only are pacifists admirable only if they’re right—they are right. (shrink)

Some left-nested indicative conditionals are hard to interpret while others seem fine. Some proponents of the view that indicative conditionals have No Truth Values (NTV) use their view to explain why some left-nestings are hard to interpret: the embedded conditional does not express the truth conditions needed by the embedding conditional. Left-nestings that seem fine are then explained away as cases of ad hoc, pragmatic interpretation. We challenge this explanation. The standard reasons for NTV about indicative conditionals (triviality results, Gibbardian (...) standoffs, etc.) extend naturally to NTV about biconditionals. So NTVers about conditionals should also be NTVers about biconditionals. But biconditionals embed much more freely than conditionals. If NTV explains why some left-nested conditionals are hard to interpret, why do biconditionals embed successfully in the very contexts where conditionals do not embed? (shrink)

Mesoudi et al. argue that the current inability to identify the means by which cultural traits are acquired does not debilitate their project to draw clear parallels between cultural and biological evolution. However, I suggest that cultural phenomena may be accounted for by biological processes, unless we can identify a cultural “genotype” that carries information from person to person independently of genes. (Published Online November 9 2006).

Varzi (2005) discussed 6 ways of symbolizing the sentence 'If Alf went to the movies then Beth went too, but only if she found a taxi-cab.' In the present reply, a seventh symbolization is offered, along with an analysis of the six alternatives discussed by Varzi.

The Catholic Church has increasingly invoked the principle of human dignity as a way to spread the message of the Gospel in the modern world. Catholic philosophers must therefore defend this principle in service to Catholic theology. One aspect of this defense is how the human person relates to the universe. Is human dignity of a piece with the material universe in which we find ourselves? Or is our dignity alien in kind to such a whole? Or does the truth (...) lie somewhere in between? The metaphysics of creation properly locates the human being in the universe as a part, ordered to the universe’s common good of order and ultimately to God. Human dignity is possible only in a cosmos; that this is concordant with modern scientific cosmology is briefly defended in the conclusion. (shrink)

In this paper I will first examine Williamsons case where he posits that ‘Justified Belief’ is not acceptable to use in the cases where one is deceived in some way, regardless of how the belief has been formed. Williamson aims to eradicate the use of the term ‘justified’ in these cases and instead impose the term unjustified but blameless. I counter this by suggesting that Williamson sets the bar too high to attain knowledge and does not give enough weight to (...) the manner in which beliefs are formed. I then offer another way to describe the situation. The structure of the essay is as follows: I will present Williamson’s main argument, define his concept of ‘norms’ and present some examples to illustrate this. I will then move on to Williamson’s formulation of blamelessness whilst unjustified in a belief as an alternative to simply justified or unjustified beliefs. I will again illustrate this with examples. Then we will explore some objections to this theory. (shrink)

Varzi (2005) discussed 6 ways of symbolizing the sentence 'If Alf went to the movies then Beth went too, but only if she found a taxi-cab.' In the present reply, a seventh symbolization is offered, along with an analysis of the six alternatives discussed by Varzi.

Problems of sustainability and survivability are best met not with moralizing but with policies that take advantage of our increasingly understood evolved human psychology. This knowledge helps us understand why our problems recur, and why we need not expect them to have permanent solutions. What is needed is an evolutionary praxis. It is possible, for example, to create policies that work around our tendencies to hierarchize and to form into ethnocentric and mutually hostile groups. Although in many ways there may (...) be a mismatch between our evolved human nature and contemporary society, the fact that it is we who construct our environments must reduce the extent of mismatch. (shrink)

What we want to be true about ordinary indicative conditionals seems to be more than we can possibly get: there just seems to be no good way to assign truth-conditions to ordinary indicative conditionals. Some take this argument as reason to make our wantings more modest. Others take it to show that indicative conditionals don't have truth-conditions in the first place. But we have overlooked two possibilities for assigning truth-conditions to indicatives. What's more, those possibilities deliver what we want and (...) turn out to be equivalent. CiteULike Connotea Del.icio.us Digg Reddit Technorati What's this? (shrink)

A set A is m-reducible to B if and only if there is a polynomial-time computable function f such that, for all x, x∈ A if and only if f ∈ B. Two sets are: 1-equivalent if and only if each is m-reducible to the other by one-one reductions; p-invertible equivalent if and only if each is m-reducible to the other by one-one, polynomial-time invertible reductions; and p-isomorphic if and only if there is an m-reduction (...) from one set to the other that is one-one, onto, and polynomial-time invertible. In this paper we show the following characterization. Theorem The following are equivalent: P = PSPACE. Every two 1-equivalent sets are p-isomorphic. Every two p-invertible equivalent sets are p-isomorphic. (shrink)

The debate on cumulative technological culture is dominated by social-learning discussions, at the expense of other cognitive processes, leading to flawed circular arguments. I welcome the authors' approach to decouple CTC from social-learning processes without minimizing their impact. Yet, this model will only be informative to understand the evolution of CTC if tested in other cultural species.

It has recently been reported that forward inferences from if p then q sentences (i.e., from antecedent to consequent) were faster than backward inferences from consequent to antecedent (Barrouillet, Grosset, & Lecas, 2000). The standard mental model theory assumes that this directionality effect is a figural effect due to the order the information enters working memory, whereas we claim that it results from the nature of the mental models that represent oriented relations from hypothetical values introduced by the word If (...) . We tested these hypotheses in an experiment in which adult participants evaluated conditional syllogisms from either if p then q , p only if q , or p if q statements. Contrary to the predictions resulting from the standard theory, the three forms of the conditional provoked a reversed directionality effect and denial inferences took longer to endorse than affirmative inferences for all the forms of conditionals. We argue from these results that mental models of the conditional represent oriented relations instead of mere co-occurrences between events. (shrink)

Mildred Cho and Nicole Martinez-Martin (2023) distinguish between two of the ways in which humans can be represented in medical contexts. One is technical: a digital model of aspects of a person’s...

To prove the equivalence one must start with one side, and the earlier-later side seems, for starting with, logically the clearer. The equivalence is provable on reasonable definitions of ‘past’, ‘present’ and ‘future’ in terms of the earlier-later structure of time. McTaggart's attempted distinction between the past-present-future A series and the earlier-later B series, as though they were rivals for the structure of time, is based on an unexamined, and false, assumption. The equivalence shows they are not rivals; they are (...) quite consistent with each other. A very serious consequence is that all subsequent argument, from the A side or the B, however sophisticated, is flawed to the extent that it accepts McTaggart's false distinction. (shrink)

§1. Introduction. Asymptotic cones of metric spaces were first invented by Gromov. They are metric spaces which capture the ‘large-scale structure’ of the underlying metric space. Later, van den Dries and Wilkie gave a more general construction of asymptotic cones using ultrapowers. Certain facts about asymptotic cones, like the completeness of the metric space, now follow rather easily from saturation properties of ultrapowers, and in this survey, we want to present two applications of the van den Dries-Wilkie approach. Using ultrapowers (...) we obtain an explicit description of the asymptotic cone of a semisimple Lie group. From this description, using semi-algebraic groups and non-standard methods, we can give a short proof of the Margulis Conjecture. In a second application, we use set theory to answer a question of Gromov.§2. Definitions. The intuitive idea behind Gromov's concept of an asymptotic cone was to look at a given metric space from an ‘infinite distance’, so that large-scale patterns should become visible. In his original definition this was done by gradually scaling down the metric by factors 1/nfornϵ ℕ. In the approach by van den Dries and Wilkie, this idea was captured by ultrapowers. Their construction is more general in the sense that the asymptotic cone exists for any metric space, whereas in Gromov's original definition, the asymptotic cone existed only for a rather restricted class of spaces. (shrink)

We examined how people think about how things could have turned out differently after they made a decision to cooperate or not in three social interactions: the Prisoner’s dilemma (Experiment 1), the Stag Hunt dilemma (Experiment 2), and the Chicken game (Experiment 3). We found that participants who took part in the game imagined the outcome would have been different if a different decision had been made by the other player, not themselves; they did so whether the outcome was good (...) or bad for them, their own choice had been to cooperate or not, and the other player’s choice had been to cooperate or not. Participants who only read about a fictional protagonist’s game imagined changes outside the protagonist’s control (such as the other player’s decision) after a good outcome but within the protagonist’s control (such as the protagonist’s decision) after a bad outcome. The implications for theories of counterfactual thinking and moral decision-making are discussed. (shrink)

Drawing on social comparison theory, we investigate employees’ ethical and performance comparisons relative to a similar coworker and subsequent emotional and behavioral responses. We test our theoretically driven hypotheses across two studies. Study 1, a cross-sectional field study, reveals that employees who perceive they are more ethical than their coworkers experience negative emotions toward the comparison coworkers and those feelings are even stronger when the employees perceive they are lower performers than their coworkers. Results also reveal that negative emotions mediate (...) the indirect relationship between being more ethical than a coworker, but also being a lower performer than that coworker onto social undermining and ostracism. Study 2, a 2 × 2 between-subjects experimental design, provides further support for our moderated mediation model. Results reveal that participants experience negative emotions when they receive information that they are more ethical than a comparison participant. Negative emotions are amplified if the participant is told they were a lower performer than the comparison participant. Those participants indicate their desire to mistreat and ignore the comparison participant if given the opportunity. Thus, we find support for our hypotheses using a multi-method design. (shrink)

In “Slowing the slide down the slippery slope of Medical Assistance in Dying: Mutual Learnings for Canada and the US,” Daryl Pullman (2023) gets a variety of empirical, logical and legal things wro...

The present research investigated the relationship between meaning perceptions and the structure of counterfactual thoughts. In Study 1, participants reflected on how turning points in their lives could have turned out otherwise. Those who were instructed to engage in subtractive (e.g., If only I had not done X...”) counterfactual thinking (SCT) about those turning points subsequently reported higher meaning perceptions than did those who engaged in additive (e.g., ‘If only I had done X...’) counterfactual thinking (ACT). In Study (...) 2, participants who reflected upon life events from the perspective of understanding the past (versus preparing for the future) tended to engage in more SCT than ACT. Finally, in Study 3, participants engaged in more SCT than ACT about life events whose meaning was perceived as certain (as opposed to uncertain) – presumably to maintain their pre-existing sense of meaning. Implications for the study of counterfactual thinking and meaning are discussed. (shrink)

Illusions of personal authorship can arise when causation for an event is ambiguous, but people mentally represent an anticipated outcome and then observe a corresponding match in reality. When people do not maintain such high-level outcome representations and focus instead on low-level behavioral representations of concrete actions, illusions of personal authorship can be reduced. One condition that yields specific action plans and thereby moves focus from high-level outcomes to low-level actions is the generation of counterfactual thoughts. Hence, in the present (...) research we tested whether thinking counterfactually can reduce illusory authorship. In line with predictions, generating behavior-regulating counterfactuals reduced susceptibility to the illusion . Importantly, this only occurred when people expected to re-encounter the situation to which the counterfactuals applied . These findings extend existing research on the boundary conditions of illusory experiences of personal authorship and might hint at a relationship between the illusion and behavior regulation. (shrink)

: With the advent of the Genetic Age comes a unique new set of problems and ethical decisions. There is a tendency to take the scientific developments presented by modern genetics at face value, as if the science itself were value-neutral and not influenced by cultural and religious images. One example of the fallout of the Genetic Age is the development of a "genetic self," the idea that our essential selfhood lies in our genes. It is important to understand the (...) assumptions of the Genetic Age, the development of genetic selfhood, and the broader cultural trends and assumptions that underlie modern genetic thinking. It is equally important, however, to shape a reaction to the concept of a genetic self. Judaism has long carried on a unique discussion about the nature of selfhood in different times and places and about the relation of the corporeal self to the essential self. Insights from Judaism therefore may help to craft a reaction to the modern genetic self that incorporates the best of modern genetics as well as the integrity of a more transcendent selfhood. (shrink)

When people think about how a situation might have turned out differently, they tend to imagine counterfactual alternatives to their actions. We report the results of three experiments which show that people imagine alternatives to actions differently when they know about a reason for the action. The first experiment ( n = 36) compared reason - action sequences to cause - effect sequences. It showed that people do not imagine alternatives to reasons in the way they imagine alternatives to causes: (...) they imagine an alternative to an action more than an effect, and to a cause more than a reason. The second experiment ( n = 214) and the third experiment ( n = 190) both show that different sorts of reasons have different sorts of effects on how people imagine alternatives to actions. People imagine an alternative to an action (the protagonist went to a ball) less often when they know the reason for the action was an obligation (he had to participate in fundraising) compared to when they know about a weaker reason (he wanted to meet a famous violinist) or no reason. The second experiment shows the effect for a social obligation and the third experiment replicates and extends it to a health obligation. We interpret the results in terms of the possibilities that people keep in mind about actions and their reasons. (shrink)

In most Western European countries and North America, strategies to contain the spread of AIDS have emphasized civil liberties. This may be due more to the epidemiology of the disease than to moral progress.

I have had occasion to hear that your interest in Eurasianism, Lev Nikolaevich, manifested itself very early, practically in your student years, and in any case before Eurasianism became the fashion. Could you tell us how exactly you became familiar with these ideas, or, in other words, how you discovered Eurasianism?

I have had occasion to hear that your interest in Eurasianism, Lev Nikolaevich, manifested itself very early, practically in your student years, and in any case before Eurasianism became the fashion. Could you tell us how exactly you became familiar with these ideas, or, in other words, how you discovered Eurasianism?

That conditional, if-then reasoning does not emerge until 4–5 years has long been accepted. Here we show that children barely 3 years old can do conditional reasoning. All that was needed was a superficial change to the stimuli: When color was a property of the shapes rather than of the background, 3-year-olds could succeed. Three-year-olds do not seem to use color to inform them which shape is correct unless color is a property of the shapes themselves. While CD requires integrating (...) color and shape information, the dimensional change card sort task requires keeping those dimension cognitively separate – inhibiting attention to one when sorting by the other. For DCCS, a superficial change to the stimuli that is the inverse of what helps on CD enables 3-year-olds to succeed when normally they do not until ∼4⁤12 years. As we and others have previously shown, 3-year-olds can succeed at DCCS when color is a property of the background, instead of a property of the stimulus. Our findings on CD and DCCS suggest that scaffolding preschoolers’ emerging conceptual skills by changing the way stimuli look enables 3-year-olds to demonstrate reasoning abilities long thought beyond their grasp. Evidently, children of 3 years have difficulty mentally separating dimensions of the same object and difficulty mentally integrating dimensions not part of the same object. Our present CD findings plus our earlier DCCS findings provide strong evidence against prominent cognitive complexity, conditional reasoning, and graded memory theories for why 3-year-olds fail these two tasks. The ways we have traditionally queried children may have obscured the budding reasoning competencies present at 3 years of age. (shrink)

This essay is in the philosophy of Christian liturgy. Specifically, it explores the liturgical practice, at home in the Eastern Orthodox Church, of venerating icons, asking: What is it about the liturgical role of icons that would make behavior such as touching and kissing them appropriate? After arguing that the standard answers to this question offered by Western and Eastern Christians are inadequate, I develop an account according to which the icons are instruments of divine action. More exactly, I claim (...) that they are vehicles of divine discourse. The behavior exhibited toward icons on the part of Eastern Christians, I maintain, makes excellent sense on the assumption that they are responses to speech acts performed by God by way of God’s appropriating the art of the church. (shrink)

Increasingly, feminist linguistic research has adopted a discursive perspective to learn how women and men ‘do’ leadership in gendered ways. ‘Women’ as a social category is made relevant to this study by virtue of the lack of female senior leaders in UK businesses. Much previous research has analysed leadership discourse in mixed gender groups, relying on theories that imply comparisons between men and women. Using an Interactional Sociolinguistic approach, this study aims to learn more about how women perform leadership in (...) the absence of men by analysing the spoken interactions of a women-only team who were engaged in a competitive leadership task. The analysis reveals that the women accomplish leadership in multiple and complex ways that defy binary gendered classifications. Nonetheless, there is a distinctive gendered dynamic to the team’s interactions which, it is argued, might be disadvantageous to women aspiring to senior positions. (shrink)

This paper compares Buddhism with the philosophies of Friedrich Nietzsche and speculates how he would have reacted to Buddhism if he had understood it more accurately. I will focus the discussion on two central philosophies of Buddhism, which Nietzsche misinterpreted: Nirvana and suffering. It will be shown through an examination of selected writings and key philosophies of Nietzsche that if he had a better understanding of Nirvana and suffering then he would have been significantly more favorable towards Buddhism and would (...) have found it to have close similarities to his own beliefs. (shrink)

An Internet persona known as "Erik" reviewed those aspects of my book No Free Lunch dealing with the Law of Conservation of Information and specificational resources. Erik's review is titled "On Dembski's Law of Conservation of Information" and is available at http://www.talkreason.org/articles/dembski_LCI.pdf. I respond to the review here.

What happens to critical and aesthetic discourse when a painter promises that he will not paint anymore? What goes on when a famous artist says that all the paintings are just junk or dust, and all the institutional sites of the art-world – actually, the White cube of Clement Greemberg’s Modernism – are just wasted spaces? What’s the matter or the reason of the prestige of a similar no-working man, and what’s the perceptible quality of the value of a so-called (...) art without any artefact at all? In the late '50sand early'60s in Paris, Andy Warhol and Yves Klein claimin different butvery similar ways the end of painting and the disappearing of the work of art from the exposition site and its becoming immaterial or environmental art, indiscernible within its surrounding living space and, finally, with the atmosphere of glamour and snobbish artist’s life. What kind of phenomenology, pragmatic, rhetoric, poetics, economy and ontology is possible when nospectatorialmode of visual consumption is any longer possible? What type of aesthetic relationship actually happens under these planned and produced conditions of non-perceptual and ‘artialized’ living experience? After more than fifty years, the statements of The philosophy of Andy Warhol and the Exposition of void of Yves Klein have not yet stopped to pose questions as such to aesthetics, theory of literature and critics, and to the history of art. (shrink)