Mathematicians often conduct aesthetic judgements to evaluate mathematical objects such as equations or proofs. But is there a consensus about which mathematical objects are beautiful? We used a comparative judgement technique to measure aesthetic intuitions among British mathematicians, Chinese mathematicians, and British mathematics undergraduates, with the aim of assessing whether judgements of mathematical beauty are influenced by cultural differences or levels of expertise. We found aesthetic agreement both within and across these demographic groups. We conclude that judgements of mathematical beauty (...) are not strongly influenced by cultural difference, levels of expertise, and types of mathematical objects. Our findings contrast with recent studies that found mathematicians often disagree with each other about mathematical beauty. (shrink)

Do psychological traits predict philosophical views? We administered the PhilPapers Survey, created by David Bourget and David Chalmers, which consists of 30 views on central philosophical topics (e.g., epistemology, ethics, metaphysics, philosophy of mind, and philosophy of language) to a sample of professional philosophers (N = 314). We extended the PhilPapers survey to measure a number of psychological traits, such as personality, numeracy, well-being, lifestyle, and life experiences. We also included non-technical ‘translations’ of these views for eventual use in other (...) populations. We found limited to no support for the notion that personality or demographics predict philosophical views. We did, however, find that some psychological traits were predictive of philosophical views, even after strict correction for multiple comparisons. Findings include: higher interest in numeracy predicted physicalism, naturalism, and consequentialism; lower levels of well-being and higher levels of mental illness predicted hard determinism; using substances such as psychedelics and marijuana predicted non-realist and subjectivist views of morality and aesthetics; having had a transformative or self-transcendent experience predicted theism and idealism. We discuss whether or not these empirical results have philosophical implications, while noting that 68% of our sample of professional philosophers indicated that such findings would indeed have philosophical value. (shrink)

The cross-cultural differences in epistemic intuitions reported by Weinberg, Nichols and Stich (2001; hereafter: WNS) laid the ground for the negative program of experimental philosophy. However, most of WNS’s findings were not corroborated in further studies. The exception here is the study concerning purported differences between Westerners and Indians in knowledge ascriptions concerning the Zebra Case, which was never properly replicated. Our study replicates the above-mentioned experiment on a considerably larger sample of Westerners (n = 211) and Indians (n = (...) 204). The analysis found a significant difference between the ethnic groups in question in the predicted direction: Indians were more likely to attribute knowledge in the Zebra Case than Westerners. In this paper, we offer an explanation of our result that takes into account the fact that replications of WNS’s other experiments did not find any cross-cultural differences. We argue that the Zebra Case is unique among the vignettes tested by WNS since it should not be regarded as a Gettier case but rather as a scenario exhibiting skeptical pressure concerning the reliability of sense-perception. We argue that skepticism towards perception as a means of gaining knowledge is a trope that is deeply rooted in Western epistemology but is very much absent from Classical Indian philosophical inquiry. This line of reasoning is based on a thorough examination of the skeptical scenarios discussed by philosophers of the Indian Nyaya tradition and their adversaries. (shrink)

In the paper I introduce and discuss the interpretative procedure; a stage of thought experiments’ investigation in which it is determined which states of affairs are genuine realizations of the described story. I show how incorporating the interpretative procedure to the reconstruction a certain kind of thought experiments, i.e. the method of cases, provides a solution to the so-called problem of deviant realizations. According to this problem it is hard to formulate the logical structure of the method of cases that (...) excludes far-fetched interpretations of a particular thought experiment’s description that are inconsistent with the expected conclusion of the experiment. As I show, if we agree that the interpretative procedure precedes the act of establishing whether the thing which is at issue (e.g., knowledge) appears within a certain state of affairs, deviant realizations could be ruled out, since within interpretative procedure we establish the set of states of affairs that are compatible with the intentions of the author of the thought experiment. In the paper I provide a general explanation of how this task could be fulfilled by semantic intuitions and discuss their contextual dependence. (shrink)

In recent years an increasing number of political philosophers have begun to ground their arguments in empirical evidence. I investigate this novel approach by way of example. The object of my case study is David Miller’s renewed empirical argument for a needs-based principle of justice. First, I introduce Miller’s argument. Then I raise four worries about the application of his methodology that give rise to corresponding general recommendations for how to do empirical political philosophy. Proponents of this approach should take (...) care to (1) check for inappropriately narrow (and broad) samples, (2) verify studies’ relevance for their empirical hypotheses, (3) adjust their confidence to the available empirical evidence, and (4) properly integrate their hypotheses into their philosophical theorizing. (shrink)

Philosophy is a reflective activity. So perhaps it is unsurprising that many philosophers have claimed that reflection plays an important role in shaping and even improving our philosophical thinking. This hypothesis seems plausible given that training in philosophy has correlated with better performance on tests of reflection and reflective reasoning has correlated with demonstrably better judgments in a variety of domains. This article reviews the hypothesized roles of reflection in philosophical thinking as well as the empirical evidence for these roles. (...) This reveals that although there are fairly reliable links between reflection and philosophical judgment among both laypeople and philosophers, the role of reflection in philosophical thinking may nonetheless depend in part on other factors, some of which have yet to be determined. So progress in research on reflection in philosophy may require further innovation in experimental methods and psychometric validation of philosophical measures. (shrink)

Prior research found correlations between reflection test performance and philosophical tendencies among laypeople. In two large studies (total N = 1299)—one pre-registered—many of these correlations were replicated in a sample that included both laypeople and philosophers. For example, reflection test performance predicted preferring atheism over theism and instrumental harm over harm avoidance on the trolley problem. However, most reflection-philosophy correlations were undetected when controlling for other factors such as numeracy, preferences for open-minded thinking, personality, philosophical training, age, and gender. Nonetheless, (...) some correlations between reflection and philosophical views survived this multivariate analysis and were only partially confounded with either education or self-reported reasoning preferences. Unreflective thinking still predicted believing in God whereas reflective thinking still predicted believing that (a) proper names like ‘Santa’ do not necessarily refer to entities that actually exist and (b) science does reveal the fundamental nature of the world. So some robust relationships between reflection and philosophical tendencies were detected even among philosophers, and yet there was clearly more to the link between reflection and philosophy. To this end, demographic and metaphilosophical hypotheses are considered. (shrink)

Experimental philosophy of aesthetics has explored to what extent ordinary people are committed to aesthetic realism. Extant work has focused on attitudes to normativism – a key commitment of realist positions in aesthetics – the claim that aesthetic judgments/statements have correctness conditions, invariant between subjects, such that there is a fact of the matter in cases of aesthetic disagreement. The emerging picture is that ordinary people strongly and almost universally reject normativism and thus there is no strong realist tendency in (...) ordinary people’s thinking about the aesthetic. This has been taken to dissolve the traditional puzzle in aesthetics of how to best account for the fact that (a) aesthetic judgments seem intersubjectively valid, while (b) aesthetic experience seems subjective. This paper presents studies which further enrich our understanding of ordinary thinking about the aesthetic: ordinary thinking about the aesthetic may not be so vehement in its rejection of normativism; and where previous results suggested that, in many cultures, the dominant trend is to reject correctness conditions for aesthetic judgments, the current results suggest participants think aesthetic judgments have correctness conditions (albeit perhaps very finely relativized to specific circumstances of judgment). (shrink)

In this paper, we consider two different attempts to make an end run around the experimentalist challenge to the armchair use of intuitions: one due to Max Deutsch and Herman Cappelen, contending that philosophers do not appeal to intuitions, but rather to arguments, in canonical philosophical texts; the other due to Joshua Knobe, arguing that intuitions are so stable that there is in fact no empirical basis for the experimentalist challenge in the first place. We show that a closer attention (...) to philosophical practices reveal, in turn, that we cannot make sense of these philosophical texts as arguments all the way down; and that our methods are so sensitive to error that even a modest amount of instability is enough to raise deep methodological concerns. (shrink)

Scientists may sometimes generalize from their samples to broader populations when they have not yet sufficiently supported this generalization. Do such hasty generalizations also occur in experimental philosophy? To check, we analyzed 171 experimental philosophy studies published between 2017 and 2023. We found that most studies tested only Western populations but generalized beyond them without justification. There was also no evidence that studies with broader conclusions had larger, more diverse samples, but they nonetheless had higher citation impact. Our analyses reveal (...) important methodological limitations of many experimental philosophy studies and suggest that philosophical training may not protect against hasty generalizations. (shrink)

In two experiments (N=888), we explore to what extent the folk concept of art is compatible with the leading philosophical definitions of art, and whether it is an essentialist or a non-essentialist concept. We manipulate three factors: whether an object is created intentionally, whether it has aesthetic value, and whether it is institutionally recognized. In addition, we also manipulate the artistic domain (visual art or music). The results suggest that none of the three properties is seen by the folk as (...) necessary for an object to be considered art, which suggests that the folk concept of art might be a cluster concept. (shrink)