Kiichi Inarimori

This paper explores the ways in which large language models (LLMs) can be used for the purpose of experimental philosophy. LLMs can be used in different ways for different purposes in experimental philosophy (Section 2). Among others, we focus on what we call the “non-predictive” research, in which LLMs’ “intuitive” responses to thought experiment cases are not expected to be predictive of, or analogous to, human subjects’ intuitive responses to them (Section 3). In effect, the non-predictive research regards LLMs’ responses as superior to human subjects’ responses, at least for the purpose of experimental philosophy. We argue that the non-predictive use of LLMs in experimental philosophy is highly motivated. Firstly, human subjects’ intuitive responses tend to be vulnerable to irrelevant factors and conceptual misunderstandings, which raises a serious worry concerning the reliability of their responses. Secondly, it is possible in the near future that LLMs can overcome these problematic factors to which human subjects are subject. As a case study, we conducted an experimental study in which we examined LLM’s “intuitions” on free will and determinism (Section 4). Our mixed results suggest that while current LLMs outperform human participants in terms of comprehension—especially in understanding deterministic scenarios—they remain highly sensitive to irrelevant factors such as framing and question order. These findings indicate that although LLMs have promising potential, they are not yet reliable sources of stable and unbiased philosophical intuitions. We conclude that substantial technical improvements are required before artificial intuitions can serve as superior alternatives to human intuitions in philosophical research.

In this article, we survey contemporary works on the phenomenology of deliberation and discuss its relevance to the philosophical problems of free will. We first articulate the debate between compatibilist and incompatibilist interpretations of (leeway and source) freedom in the phenomenology of deliberation (Section 2). Next, we examine this issue in light of relevant psychological studies of the folk experiences of deliberation (Section 3), followed by a discussion of four general methodological problems in the investigation of the phenomenology of deliberation (Section 4): (i) the problem of heterogeneity, (ii) the problem of cognitive penetration, (iii) the problem of reliability, and (iv) the problem of relevance. We conclude that these problems suggest the need for the reconsideration of experimental methods and the role of the phenomenology of deliberation in the free will debate.

The widespread use of English in the field of philosophy facilitates international collaboration but may also pose significant challenges in understanding, analyzing, or producing information for both native (NES) and non-native English speakers (NNES). These challenges have not yet been systematically investigated. We conducted an international survey of philosophers (_N_ = 1,615), comparing NES and NNES, while controlling for their academic position (e.g., student, staff, etc.) and other relevant variables. Responses indicated that NNES needed up to twice as long as NES to read English articles and nearly twice as long to prepare English presentations. Additionally, even NNES with the highest English proficiency reported significantly more English manuscript rejections, greater avoidance of attending or asking questions at philosophy events in English, and more frequent feelings of ridicule for their English use. No statistically significant difference was observed in the reported time required to complete an English draft, but NNES tended to report shorter times, possibly reflecting greater reliance on external assistance to detect linguistic errors. Finally, while extensive use of English may help NNES overcome difficulties with English, 88% of NNES respondents reported that it also reduced their ability to discuss philosophy in their native language. This study provides the first systematic, quantitative evidence of English-related epistemic challenges that many NNES may face in philosophy, highlighting significant linguistic inequities.

The widespread use of English in the field of philosophy facilitates international collaboration but may also pose significant challenges in understanding, analyzing, or producing information for both native (NES) and non-native English speakers (NNES). These challenges have not yet been systematically investigated. We conducted an international survey of philosophers (N = 1,615), comparing NES and NNES, while controlling for their academic position (e.g., student, staff, etc.) and other relevant variables. Responses indicated that NNES needed up to twice as long as NES to read English articles and nearly twice as long to prepare English presentations. Additionally, even NNES with the highest English proficiency reported significantly more English manuscript rejections, greater avoidance of attending or asking questions at philosophy events in English, and more frequent feelings of ridicule for their English use. No statistically significant difference was observed in the reported time required to complete an English draft, but NNES tended to report shorter times, possibly reflecting greater reliance on external assistance to detect linguistic errors. Finally, while extensive use of English may help NNES overcome difficulties with English, 88% of NNES respondents reported that it also reduced their ability to discuss philosophy in their native language. This study provides the first systematic, quantitative evidence of English-related epistemic challenges that many NNES may face in philosophy, highlighting significant linguistic inequities.

This paper aims to vindicate the expertise defense in light of the experimental philosophy of free will. My central argument is that the analogy strategy between philosophy and other domains is defensible, at least in the free will debate, because philosophical training contributes to the formation of philosophical intuition by enabling expert philosophers to understand philosophical issues correctly and to have philosophical intuitions about them. This paper will begin by deriving two requirements on the expertise defense from major criticisms of it. First, precisely how philosophical training contributes to the formation of philosophical intuitions requires explanation (Contribution); second, it must be explained how philosophical training immunizes philosophical intuitions from distorting factors (Immunity). I shall argue that the Contribution requirement is crucial for the expertise defense and that this requirement can be satisfied at least in the domain of free will: recent research shows that most novices are unable to understand determinism correctly, suggesting that having intuitions about determinism requires philosophical expertise. I then discuss how this proposal can be applied to other philosophical disciplines.

This paper is an investigation into the conditions under which anti-love biomedical intervention is justified. Our central claim is that anti-love biomedical intervention can be justified without the “simultaneous consent” of recipients (where the simultaneous consent of a person S is understood as S’s consent at time t to an intervention at t) when it contributes to increased autonomy. We begin with an overview of earlier discussions of the ethics of anti-love biomedical intervention, focusing on the pioneering work of Earp and colleagues. We then present some cases in which paternalistic intervention may be effective. We will then present an argument for the idea of anti-love biomedical intervention without simultaneous consent, based on an analogy between (biomedical intervention in) addiction and (biomedical intervention in) love. One premise of this argument is that love and addiction are importantly similar in that they can compromise the autonomous capacity for self-governing. The other premise of this argument is that biomedical intervention in addiction without simultaneous consent can be justified if the intervention is expected to restore the compromised capacity for self-governing. We will propose the “Ulysses contract”, a contract to enforce anti-love biomedical intervention when the recipient refuses it, as a possible measure of such paternalistic intervention and discuss its possible risks.

In this study, we conducted large-scale experiments with novel descriptions of determinism. Our goal was to investigate the effects of desires for punishment and comprehension errors on people’s intuitions about free will and moral responsibility in deterministic scenarios. Previous research has acknowledged the influence of these factors, but their total effect has not been revealed. Using a large-scale survey of Japanese participants, we found that the failure to understand causal determination (intrusion) has limited effects relative to other factors and that the conflation of determinism and epiphenomenalism (bypassing) has a significant influence, even when controlling for other variables. This leads to the increased prevalence of incompatibilist responses. Furthermore, our results demonstrated a close association between the attribution of free will/responsibility and retributive desire. While further research is needed to establish the causal relationship between these factors, this association is consistent with Cory Clark and colleagues' study that increased desire contributes to increased compatibilist responses and their claim that a definitive intuition about free will may be elusive.

This paper outlines ethical problems with the regional quota systems used in Japanese medical schools from the perspective of the autonomous choice of doctors and medical students. “Regional quotas” have been established in university medical schools in Japan to cultivate doctors for rural areas, and the percentage of such quotas has been significantly increasing in recent years. This study mainly focuses on the regional quota systems for medical schools whereby medical students receive scholarships on the condition that they work in community medicine for a certain period after graduating and are exempt from repaying the scholarship depending on the fulfillment of their obligations. In many cases, the regional quota systems impose penalties on those who leave to prevent withdrawal, and some claim that it is morally impermissible to withdraw from the contract. Thus, the study reviews regional quota systems and argues that these systems contain contracts that restrict the signatory’s freedom of residence and professional choice for more than a decade, and that it is difficult to withdraw from the contract because of the penalties. Consequently, it demonstrates that these contracts are morally unjust as they severely restrict the autonomous choice of doctors and medical students. In conclusion, the current regional quota systems are morally impermissible and local authorities should recruit new doctors without using such systems.

This study aimed to present a novel explanation for the perplexing nature of moral intuition regarding abstract and concrete descriptions of deterministic actions. Nichols and Knobe (2007) have found that, when deterministic actions are described concretely, most people exhibit compatibilist responses. Conversely, when deterministic actions are described abstractly, most people exhibit incompatibilist responses. The prevailing explanation for this phenomenon is that one of the two responses is an error. However, this study argues that this phenomenon can be understood as a consequence of normal operation of the mechanism that generates moral intuition. The focus is on Björnsson’s Explanation Hypothesis (Björnsson & Persson, 2012, 2013; Björnsson, 2015), which posits that differences in explanations provided for deterministic actions in different cases account for the discrepancy in intuition between concrete and abstract cases. This study reinterpreted this proposal by focusing on how actions were represented in concrete and abstract cases and presented a new theory, which is the explanation-representation hypothesis. This theory accounts for both compatibilist and incompatibilist intuition without relying on error accounts.

This paper aims to defend the Expertise Defense by addressing the problem of disanalogy, which represents one of the two main critiques against this argument. The Expertise Defense is an argument which defends the notion that philosophers’ judgments are more reliable than those of novices by making analogies between philosophy and other fields in which experts’ judgments are given a privileged position. Conventionally, this line of argumentation has aimed to demonstrate that philosophers' intuitions about thought experiments or metaphysical questions are not as susceptible to being distorted by unrelated factors as those of novices. However, this paper reinterprets the Expertise Defense, proposing that it claims that philosophers' intuitions are considerably more reliable than novices, even if they are still susceptible to distorting factors. By adopting this interpretation, the current paper effectively counters the empirical objection that philosophers' intuitions are subject to distortion. Furthermore, I respond to the disanalogy problem, which contends that there is no meaningful analogy between philosophy and other domains because philosophical experience does not contribute significantly to philosophical intuitions. In response to this, I present a new model of philosophical expertise. According to this model, philosophical training plays a vital role in shaping philosophical intuitions by enabling expert philosophers to comprehend philosophical problems accurately and form well-grounded intuitions about them. Additionally, I provide empirical evidence supporting this model, particularly in the context of the debates about free-will. While the extent to which this model can be generalized remains an empirical question, it seems reasonable to think that it could plausibly be extended to other debates.

This article critically examines the experimental philosophy of free will, particularly the interplay between ordinary individuals’ compatibilist and incompatibilist intuitions. It explores key insights from research studies that propose “natural compatibilism” and “natural incompatibilism”. These studies reveal a complex landscape of folk intuitions, where participants appear to exhibit both types of intuitions. Here, we examine error theories, which purport to explain the coexistence of apparently contradictory intuitions: the Affective Performance Error hypothesis, the “Free Will No Matter What” hypothesis, the Bypassing hypothesis, and the Intrusion hypothesis, and the article explores the cognitive errors that could shape individuals’ inconsistent perceptions of free will. We then explore three possibilities regarding folk intuitions: most individuals may hold either compatibilist or incompatibilist intuitions, both simultaneously, or neither. Our aim is to deepen the understanding of the complex dynamics of intuitions about free will, and we close with suggestions for future studies in experimental philosophy.

Este artículo pretende reivindicar la defensa de la pericia a la luz de la filosofía experimental del libre albedrío. Mi argumento central es que la estrategia de analogía entre la filosofía y otros dominios es defendible, al menos en el debate sobre el libre albedrío, porque la formación filosófica contribuye a la formación de la intuición filosófica al permitir a los filósofos expertos comprender correctamente las cuestiones filosóficas y tener intuiciones filosóficas sobre ellas. Este artículo comenzará derivando dos requisitos para la defensa de la pericia a partir de las principales críticas a la misma. En primer lugar, es preciso explicar con precisión cómo contribuye la formación filosófica a la creación de intuiciones filosóficas (Contribución); en segundo lugar, debe explicarse cómo la formación filosófica inmuniza a las intuiciones filosóficas frente a factores distorsionadores (Inmunidad). Argumentaré que el requisito de Contribución es crucial para la defensa de la pericia y que este requisito puede satisfacerse al menos en el dominio del libre albedrío: investigaciones recientes muestran que la mayoría de las personas inexpertas son incapaces de entender correctamente el determinismo, lo que sugiere que tener intuiciones sobre el determinismo requiere pericia filosófica. A continuación, discuto cómo esta propuesta puede aplicarse a otras disciplinas filosóficas.

This paper investigates the role of group identification in empathic emotion and its behavioral consequences. Our central idea is that group identification is the key to understanding the process in which empathic emotion causes helping behavior. Empathic emotion causes helping behavior because it involves group identification, which motivates helping behavior toward other members. This paper focuses on a hypothesis, which we call “self-other merging hypothesis (SMH),” according to which empathy-induced helping behavior is due to the “merging” between the helping agent and the helped agent. We argue that SMH should be interpreted in terms of group identification. The group identification interpretation of SMH is both behaviorally adequate (i.e., successfully predicts and explains the helping behavior in the experimental settings) and psychologically plausible (i.e., does not posit psychologically unrealistic beliefs, desires, etc.). Empathy-induced helping behavior, according to the group identification interpretation of the SMH, does not fit comfortably into the traditional egoism/altruism dichotomy. We thus propose a new taxonomy according to which empathy-induced helping behavior is both altruistic at the individual level and egoistic at the group level.