El objetivo de este dossier es reflexionar, desde una perspectiva histórica, sobre los valores y significados que el municipalismo ha adquirido para los iberoamericanos en la época actual. La elección de este tema se debe a dos razones principales: por un lado, al papel que esta institución desempeña hoy en día en los regímenes democráticos de América latina, tanto en su dimensión social como política y territorial; por el otro, al hecho que el municipio tiene una herencia histórica muy larga (...) y compleja que va desde la Antigüedad, la Edad Media y Moderna hasta nuestros días. (shrink)

Cet article propose de penser la question du genre à l’époque des Indépendances dans l’Amérique espagnole à la lumière de la question de la race. En raison de la forte relation entre race et genre à cette époque, souvent témoignée par les contemporains eux-mêmes, on s’appuiera sur les travaux récents sur les descendants des Africains pour montrer les moyens utilisés par les femmes pour réclamer leurs droits et transformer leur position dans la société. Si les femmes étaient en principe exclues (...) des droits de citoyenneté en raison de leur dépendance vis-à-vis du pater familias, elles utilisèrent cependant les nouveaux principes constitutionnels et les espaces de manœuvre laissés par les systèmes juridiques pour entamer des actions et revendiquer leurs droits. (shrink)

BackgroundFace-to-face visual contact is a key component of the early parent-child interaction, therefore a visual impairment condition of the parent or the child represents a risk factor for dyadic patterns' development.AimsThe study presents a critical single case of a blind father and a 18-month-old visually impaired child. The study aims to explore changes in the relational functioning of this dyad during an early family-centered intervention.Methods and proceduresTen parent-child sessions were videotaped and micro-analytically coded. Data were analyzed through a State Space (...) Grid crossing child's social cues and types of father verbalizations.Outcomes and resultsFindings showed a stable increase in the amount of child social cues over time. Moreover, the dyad exhibited progressive changes in dyadic regulation, stability, and organization. The return time to the “active interaction” region of interest decreased progressively. A reduction was observed also for the time spent by the dyad in the region “no vocal contact.”Conclusions and implicationsThis critical single case highlighted the benefits of parental engagement in early interventions for the dyadic regulation in parent-child interaction. (shrink)

This paper deals with causal analysis in the social sciences. We first present a conceptual framework according to which causal analysis is based on a rationale of variation and invariance, and not only on regularity. We then develop a formal framework for causal analysis by means of structural modelling. Within this framework we approach causality in terms of exogeneity in a structural conditional model based which is based on (i) congruence with background knowledge, (ii) invariance under a large variety of (...) environmental changes, and (iii) model fit. We also tackle the issue of confounding and show how latent confounders can play havoc with exogeneity. This framework avoids making untestable metaphysical claims about causal relations and yet remains useful for cognitive and action-oriented goals. (shrink)

In questo lavoro intendo confrontare le posizioni di Searle e Dennett nell’ambito della teoria della mente con la teoria husserliana della coscienza. Mostrerò come questi autori modifichino la nozione fenomenologica di intenzionalità, trasformandola in un modello di descrizione in “terza persona”. Tale cambiamento ha conseguenze problematiche riguardanti la distinzione fra un atto mentale e il suo contenuto e la conseguente critica alla teoria rappresentazionale della mente; l’argomento del teatro cartesiano, quello dell’omuncolo e lo smantellamento della nozione di soggettività; il rifiuto (...) dell’inconscio. Mostrerò come le concezioni di Searle e Dennett nascano da un concetto contraddittorio di riduzionismo, implicito anche negli sviluppi della “fenomenologia naturalizzata” e della neurofenomenologia. Queste difficoltà non si possono risolvere adattando o applicando il metodo fenomenologico alle scienze cognitive, né tornando semplicemente alla teoria husserliana. Bisogna invece individuare i problemi specifici affrontabili fenomenologicamente all’interno di un contesto scientifico: per esempio, la struttura temporale della coscienza e la questione dei contenuti inconsci della mente. (shrink)

Beatrice Erskine Lane Suzuki (1878–1939) is mainly known for being the wife of D.T. Suzuki鈴木大拙 (1870–1966), the Japanese religious studies scholar and intellectual who promoted the popularization of Buddhism in the Western world. However, she was also an active researcher and prolific writer in the same field, boasting deep theoretical and practical knowledge of the subject and an original, brilliant interpretative style. Her research led her to appreciate and assimilate cultural values quite different from those of her Scottish and American (...) background influenced by Catholicism. The fact that she left her homeland to research an entirely different culture was what she had in common with Albert Schweitzer (1875–1965), her contemporary and eclectic intellectual and philosopher who left Alsace to engage in religious and anthropological studies in Africa. Although she dedicated numerous enthusiastic reflections to Schweitzer in her writings, those refuting Schweitzer's theories assume great relevance. In his comparison between Western and Eastern spirituality, Schweitzer fiercely attacked the latter, expressing the absolute superiority of the Christian doctrine, which he fervently supported. Lane, on the contrary, was strongly fascinated by Buddhism, and found in it a source of faith and a creed to live by. This article aims to retrace the analysis made by both authors to outline their different perspectives, despite their shared cultural background. (shrink)

This paper examines one aspect of the legacy of the Value-Free Ideal in conservation science: the view that measurements and metrics are value-free epistemic tools detached from ideological, ethical, social, and, generally, non-epistemic considerations. Contrary to this view, I will argue that traditional measurement practices entrenched in conservation are in fact permeated with non-epistemic values. I challenge the received view by revealing three non-epistemic assumptions underlying traditional metrics: (1) a human-environment demarcation, (2) the desirability of a people-free landscape, and (3) (...) the exclusion of cultural diversity from biodiversity. I also draw a connection between arguments for retaining traditional metrics to “scientific colonialism,” exemplified by a fortress conservation model. I conclude by advocating for abandoning the myth of the intrinsic value-freedom of measurement practices and embracing metrics aligned with societal and scientific goals. (shrink)

Testimony spreads information. It is also commonly agreed that it can transfer knowledge. Whether it can work as an epistemic source of understanding is a matter of dispute. However, testimony certainly plays a pivotal role in the proliferation of understanding in the epistemic community. But how exactly do we learn, and how do we make advancements in understanding on the basis of one another’s words? And what can we do to maximize the probability that the process of acquiring understanding from (...) one another succeeds? These are very important questions in our current epistemological landscape, especially in light of the attention that has been paid to understanding as an epistemic achievement of purely epistemic value. Somewhat surprisingly, the recent literature in social epistemology does not offer much on the topic. The overarching aim of this paper is to provide a tentative model of understanding that goes in-depth enough to safely address the question of how understanding and testimony are related to one another. The hope is to contribute, in some measure, to the effort to understand understanding, and to explain two facts about our epistemic practices: the fact that knowledge and understanding relate differently to testimony, and the fact that some pieces of testimonial information are better than others for the sake of providing one with understanding and of yielding advancements in one’s epistemic standing. (shrink)

Can we gain understanding from testifiers who themselves fail to understand? At first glance, this looks counterintuitive. How could a hearer who has no understanding or very poor understanding of a certain subject matter non-accidentally extract items of information relevant to understanding from a speaker’s testimony if the speaker does not understand what she is talking about? This paper shows that, when there are theories or representational devices working as mediators, speakers can intentionally generate understanding in their hearers by engaging (...) in relevant speech acts without understanding the topic of these speech acts themselves. More specifically, I argue that testifiers can intentionally elicit understanding of empirical phenomena in their hearers even if they themselves lack such understanding – granted that they properly understood the epistemic mediators involved. (shrink)

In both scientific and popular circles it is often said that we are in the midst of a sixth mass extinction. Although the urgency of our present environmental crises is not in doubt, such claims of a present mass extinction are highly controversial scientifically. Our aims are, first, to get to the bottom of this scientific debate by shedding philosophical light on the many conceptual and methodological challenges involved in answering this scientific question, and, second, to offer new philosophical perspectives (...) on what the value of asking this question has been — and whether that value persists today. We show that the conceptual challenges in defining ‘mass extinction’, uncertainties in past and present diversity assessments, and data incommensurabilities undermine a straightforward answer to the question of whether we are in, or entering, a sixth mass extinction today. More broadly we argue that an excessive focus on the mass extinction framing can be misleading for present conservation efforts and may lead us to miss out on the many other valuable insights that Earth’s deep time can offer in guiding our future. (shrink)

Social and cultural contexts influence power dynamics and shape gender perceptions, roles, and decisions regarding the management of agrobiodiversity for dealing with and adapting to climate change. Based on a feminist political ecology framework and a mixed method approach, this research performs an empirical analysis of two case studies in the northern of India, one in the Himalayan Mountains and another in the Indian-Gangetic plains. It explores context-specific influence of gender roles and responsibilities on on-farm agrobiodiversity management gendered expertise and (...) knowledge related to agrobiodiversity and gendered preferences for practices and institutional arrangements for agrobiodiversity conservation linked to adaptation to climate change. In the Himalayan mountains women actively participate in crop and seed management decisions and tasks, and maintain informal institutions for seed and services exchanges in the case of crisis, which simultaneously favours high levels of agrobiodiversity and enhances women’s social status. By contrast, in the Indio-Gangetic plains, where women from better-off households are socially secluded and women from poorer households work mainly as labourer to respond to high out-migration of men, they exercise less public control over agrobiodiversity, with their role being mainly invisible at the homestead and related to post-production tasks. We finally discuss as improved understanding of the links between gendered spaces, crops, tasks, social status, and agrobiodiversity management can facilitate the design of gender-sensitive policy interventions for conservation and adaptation to climate change. (shrink)

Causal analysis in the social sciences takes advantage of a variety of methods and of a multi-fold source of information and evidence. This pluralistic methodology and source of information raises the question of whether we should accordingly have a pluralistic metaphysics and epistemology. This paper focuses on epistemology and argues that a pluralistic methodology and evidence don’t entail a pluralistic epistemology. It will be shown that causal models employ a single rationale of testing, based on the notion of variation. Further, (...) I shall argue that this monistic epistemology is also involved in alternative philosophical theories of causation. (shrink)

How does emancipation from social oppression work and unfold? The paper is an attempt to deal with this question from an aesthetic point of view. By drawing on pragmatist resources, and more precisely on John Dewey’s aesthetic theory and on Charlotte Perkins Gilman’s short story ‘The Yellow Wallpaper’, I discuss the critical and transformative potential of a special kind of aesthetic experience, namely ‘aecsthetic experience’. The paper unfolds in three steps: First, I introduce Iris Marion Young’s account of social oppression, (...) which fits particularly well with the framework of the ‘The Yellow Wallpaper’ (1). I show then, in contrast to an established interpretation, how the protagonist of Gilman’s story makes an experience of liberation from oppression (2). Finally, I reconstruct Dewey’s role in my interpretation of this feminist classic, and I suggest what a Deweyan account might learn from it (3). (shrink)

Humans have attained an unparalleled level of sophistication when engaging in collaborative and cooperative activities. Remarkably, the skills and motivation to engage in complex forms of collaboration and cooperation seem to emerge early on during infancy and childhood. In this paper, I extensively review the literature on the evolution and development of human cooperation, emphasizing important aspects of inter-cultural variation in collaborative and cooperative behaviour. This will not only allow us to confront the different evolutionary scenarios in which cooperation may (...) have emerged, but will especially provide the reader with a first orientation in the abundant literature on human cooperation. (shrink)

Can we transmit understanding via testimony in more or less the same way in which we transmit knowledge? The standard view in social epistemology has a straightforward answer: no, we cannot. Three arguments supporting the standard view have been formulated so far. The first appeals to the claim that gaining understanding requires a greater cognitive effort than acquiring testimonial knowledge does. The second appeals to a certain type of epistemic trust that is supposedly characteristic of knowledge transmission (and maybe of (...) the transmission of epistemic goods in general) and that is allegedly incompatible with understanding. The third aims to show that there is a certain aspect of understanding (what epistemologists these days like to call “grasping”) that cannot be passed on to another person via testimony alone. In this article, I show that all of these arguments can be resisted. Thus, there seem to be no compelling reasons to embrace the standard view. (shrink)

This book investigates the unresolved issue of democratic legitimacy in contexts of pervasive disagreement and contributes to this debate by defending a relational version of political liberalism that rests on the ideal of co-authorship. According to this proposal, democratic legitimacy depends upon establishing appropriate interactions among citizens who ought to ascribe to one another the status of putative practical and epistemic authorities. To support this relational reading of political liberalism, the book proposes a revised account of the civic virtue of (...) reasonableness along with an investigation of the epistemic-specific dimension of political equality. By engaging with political epistemology and social theory, this book explores ways to address inherent tensions within the liberal paradigm, using the following strategies of addressing these tensions: first, it defends a twofold model of legitimacy that distinguishes the goals, methodologies, and justificatory tasks of both ideal and nonideal phases of the two-level justificatory framework; second, it contends that democratic legitimacy requires an engaged and contextual critical appraisal of the injustices that characterize our daily social lives, illustrating how structural forms of injustice represent a profound betrayal of the liberal ideal of democratic legitimacy. (shrink)

In Responsible Brains, Hirstein, Sifferd and Fagan apply the language of cognitive neuroscience to dominant understandings of criminal responsibility in criminal law theory. The Authors make a compelling case that, under such dominant understandings, criminal responsibility eventually ‘translates’ into a minimal working set of executive functions that are primarily mediated by the frontal lobes of the brain. In so arguing, the Authors seem to unquestioningly accept the law’s view of the “responsible person” as a mixture of cognitive capacities and mechanisms—thereby (...) leaving aside other fundamental aspects of individuals’ human agency. This commentary article offers a critique of the Authors’ rationalist and individualist approach. The critique can be summarized through the following claim: We humans, as responsible beings, are more than our executive functions. This claim articulates through four main points of discussion: role of emotions in moral judgments and behavior; executive functions and normative criteria for legal insanity; impact of adverse situational factors on executive functions; Authors’ account of punishment and, especially, rehabilitation. (shrink)

L’intento del lavoro è di problematizzare alcuni aspetti, generalmente ritenuti emblematici, della relazione tra i litterati medievali e il libro – nelle sue declinazioni di Testo sacro, Libro della natura e auctoritates . L’impiego, come strumenti di lavoro, di concetti di recente elaborazione e di osservazioni di pensatori contemporanei sull’argomento, non è finalizzato ad attualizzare tale relazione, quanto piuttosto ad ampliare i punti di vista su di essa e a metterne alla prova la capacità di offrire originali spunti di riflessione. (...) Le proposte teoriche di Jacques Derrida, Michel Foucault e Roland Barthes sono qui adoperate come esemplificazioni di un’interpretazione che ha storicamente reso quasi paradigmatico il modo di leggere dei docti , specialmente altomedievali. Tuttavia, alcune definizioni della Scrittura – il libro per eccellenza – proposte da questi ultimi, nonché la teorizzazione del suo quadruplice senso sembrano smussare la radicalità di queste osservazioni. Concetti quali “funzione-autore” di Foucault e “testo” di Barthes sono invece adottati per considerare all’interno di una diversa cornice teorica il confronto dei doctores , in particolare bassomedievali, con le cosiddette auctoritates . Nella visione ordinaria la reverenza nei confronti dell’autore, divino o umano, la ricerca e la riproposizione fedele di un significato univoco dell’opera aldilà dei segni, naturali o culturali, che lo veicolano costituiscono tratti tipici dell’atteggiamento dei lettori medievali. A fronte di questi aspetti, tuttavia, è possibile sottolinearne altri eterodossi e perlopiù trascurati, quali la rilevanza attribuita all’interpretazione, prassi ineludibile e da disciplinare, al ruolo del lettore e alla sua fruizione attiva e produttiva dei testi. The aim of the work is to problematize some aspects generally considered representative of the relationship between medieval savants and the book - in its variations of Bible, Book of Nature and so-called auctoritates . The use, as tools, of newly developed concepts and observations of contemporary thinkers on this subject, is not aimed at updating this relationship, but rather at expanding the points of view on it and testing its ability to adduce original food for thought. The theoretical suggestions of Jacques Derrida, Michel Foucault and Roland Barthes are used here as examples of an interpretation that has historically made almost paradigmatic the way of reading of early medieval writers. However, some definitions of Scripture - the book by definition - proposed by them and the theory of its fourfold sense seem to blunt these drastic observations. Concepts such as Foucault’s "author-function" or Barthes’ "text" are used to consider in a different theoretical context the relation between late medieval thinkers and the so-called auctoritates . In ordinary vision the reverence for the divine or human author, the research and the revival of a true single meaning of his work beyond its natural or cultural signs are typical features of the attitude of medieval readers. In relation to these aspects, however, it is possible to highlight other heterodox and less considered ones, such as the importance given to the interpretation, inescapable practice that has to be regulated, to the reader’s role and to his active and productive use of texts. (shrink)

We argue that the health sciences make causal claims on the basis of evidence both of physical mechanisms, and of probabilistic dependencies. Consequently, an analysis of causality solely in terms of physical mechanisms or solely in terms of probabilistic relationships, does not do justice to the causal claims of these sciences. Yet there seems to be a single relation of cause in these sciences - pluralism about causality will not do either. Instead, we maintain, the health sciences require a theory (...) of causality that unifies its mechanistic and probabilistic aspects. We argue that the epistemic theory of causality provides the required unification. (shrink)

This paper explores the implications of a Civil Economy approach to consumer ethics, by addressing the idea that Antonio Genovesi’s (1713–1769) notion of _mutual assistance_ can be understood in terms of _collective intentionality_ or _team reasoning_. I try to give reasons for this idea by a careful examination of Genovesi’s conception of social life and human agency and by reading it through the lens of team reasoning. I argue that this understanding of mutual assistance may imply broad constraints over agents’ (...) choices whenever they conflict with the good of society. Then I explore the implications of a mutual assistance approach to market ethics in a global society, where conflicting views of good and different group affiliations are possible. (shrink)

BackgroundThe measures taken to contain the coronavirus disease 2019 pandemic, such as the lockdown in Italy, do impact psychological health; yet, less is known about their effect on cognitive functioning. The transactional theory of stress predicts reciprocal influences between perceived stress and cognitive performance. However, the effects of a period of stress due to social isolation on spatial cognition and exploration have been little examined. The aim of the present study was to investigate the possible effects and impact of the (...) COVID-19 pandemic on spatial cognition tasks, particularly those concerning spatial exploration, and the physiological leftward bias known as pseudoneglect. A right-hemisphere asymmetry for spatial attention processes crucially contributes to pseudoneglect. Other evidence indicates a predominantly right-hemisphere activity in stressful situations. We also analyzed the effects of lockdown on coping strategies, which typically show an opposite pattern of hemispheric asymmetry, favoring the left hemisphere. If so, then pseudoneglect should increase during the lockdown and be negatively correlated with the efficacy of coping strategies.MethodsOne week before the start of the lockdown due to COVID-19 in Italy, we had collected data from a battery of behavioral tests including tasks of peri-personal spatial cognition. During the quarantine period, from late April to early May 2020, we repeated the testing sessions with a subgroup of the same participants. At both testing sessions, participants performed digitized neuropsychological tests, including a Cancellation task, Radial Arm Maze task, and Raven’s Advanced Progressive Matrices. Participants also completed a newly developed COVID-19 Student Stress Scale, based on transactional models of stress, and the Coping Orientation to Problems Experienced—New Italian Version to assess coping orientation.ResultsThe tendency to start cancelation from a left-sided item, to explore first a left-sided arm of the maze, and to choose erroneous response items on the left side of the page on Raven’s matrices increased from T1 to T2. The degree of pseudoneglect increment positively correlated with perceived stress and negatively correlated with Positive Attitude and Problem-Solving COPE-NIV subscales.ConclusionLockdown-related stress may have contributed to increase leftward bias during quarantine through a greater activation of the right hemisphere. On the other hand, pseudoneglect was decreased for better coping participants, perhaps as a consequence of a more balanced hemispheric activity in these individuals. (shrink)

Mobile applications are increasingly regarded as important tools for an integrated strategy of infection containment in post-lockdown societies around the globe. This paper discusses a number of questions that should be addressed when assessing the ethical challenges of mobile applications for digital contact-tracing of COVID-19: Which safeguards should be designed in the technology? Who should access data? What is a legitimate role for “Big Tech” companies in the development and implementation of these systems? How should cultural and behavioural issues be (...) accounted for in the design of these apps? Should use of these apps be compulsory? What does transparency and ethical oversight mean in this context? We demonstrate that responses to these questions are complex and contingent and argue that if digital contract-tracing is used, then it should be clear that this is on a trial basis and its use should be subject to independent monitoring and evaluation. (shrink)

Traditional theories of moral development emphasize the role of controlled cognition in mature moral judgment, while a more recent trend emphasizes intuitive and emotional processes. Here we test a dual-process theory synthesizing these perspectives. More specifically, our theory associates utilitarian moral judgment (approving of harmful actions that maximize good consequences) with controlled cognitive processes and associates non-utilitarian moral judgment with automatic emotional responses. Consistent with this theory, we find that a cognitive load manipulation selectively interferes with utilitarian judgment. This interference (...) effect provides direct evidence for the influence of controlled cognitive processes in moral judgment, and utilitarian moral judgment more specifically. (shrink)

It is widely acknowledged in the literature in social epistemology that knowledge has a social dimension: we are epistemically dependent upon one another for most of what we know. Our knowledge can be, and very often is, grounded on the epistemic achievement of somebody else. But what about epistemic aims other than knowledge? What about understanding? Prominent authors argue that understanding is not social in the same way in which knowledge is. Others can put us in the position to understand, (...) but when we understand something, this accomplishment is to be credited mainly if not entirely to us, as it is due to the successful exercise of our own cognitive abilities. In this paper, I show that the social dimension of understanding closely resembles the social dimension of knowledge. I distinguish between three different ways in which a subject can depend upon another subject for (either the acquisition or the possession of) a certain epistemic good. I then argue that all these kinds of epistemic dependence apply to knowledge and understanding alike. If I am right, understanding is not (always) an achievement to be (mainly) credited to the single epistemic agent who understands. (shrink)

Coping is customarily understood as those thoughts and actions humans adopt while undergoing situations appraised as threatening and stressful, or when peo- ple’s sense of who they are and what they should do is significantly challenged. In these cases, coping thoughts and actions help one endure and hopefully overcome these stresses, threats, and/or challenges. Discussions of coping are common among psychologists, but nearly absent from the philosophical literature despite their importance in theories of agency and for closely related concepts like (...) resili- ence. Building from psychological theories of coping, I offer a first philosophical exploration of the concept by showing how it can relate to and enrich extant work on agency and resilience and contribute to a more nuanced account of agency itself, especially as exercised in less-than-ideal conditions. (shrink)

Mobile health is rapidly being implemented and changing our ways of doing, understanding and organising healthcare. mHealth includes wearable devices as well as apps that track fitness, offer wellness programmes or provide tools to manage chronic conditions. According to industry and policy makers, these systems offer efficient and cost-effective solutions for disease prevention and self-management. While this development raises many ethically relevant questions, so far mHealth has received only little attention in medical ethics. This paper provides an overview of bioethical (...) issues raised by mHealth and aims to draw scholarly attention to the ethical significance of its promises and challenges. We show that the overly positive promises of mHealth need to be nuanced and their desirability critically assessed. Finally, we offer suggestions to bioethicists to engage with this emerging trend in healthcare to develop mHealth to its best potential in a morally sound way. (shrink)

Hope and Gabbert (2008) and Jay and colleagues (in press) show us that collaborative remembering, in certain contexts, may result in incomplete and less accurate memories. Here, I will discuss the evolutionary origins of this behavior, linking it to phenomena such as social contagion, conformity, and social learning, which are highly adaptive and widespread across non-human taxa.

The subjective experience of time in depression has been described to be altered in complex ways, with sensations of particular slowness, delay or stillness being the most often named articulations. However, the attempts to provide empirical evidence to the phenomenon of “time slowing down in depression” have resulted in inconsistent findings. In consequence, the overall claim that depressive time somehow differs from ordinary time has often been discarded as unfounded. The article argues against such conclusion, contending that the described ambiguity (...) might be caused by the methods employed to assess the phenomenon under observation. In the first part of the article, a reconceptualization of the experience of time in depression is proposed on the grounds of classic and contemporary phenomenological psychiatry. This leads to identify the essential features of depressive time as described both in clinical and philosophical contexts. In the second part, a critique of the existing methods of time perception assessment is conducted, with a specific focus on duration estimation and time passage perception tasks. The above-mentioned core features serve as guidelines in discussing to what degree such methods fit the phenomenon at stake. Finally, an alternative and innovative method is put forward, that might not only help to explore the scope of existing methods but might itself present an alternative to such: the micro-phenomenological interview. (shrink)

Estimating whether the Earth’s biota is in the middle of a crisis relies heavily on comparisons between present and past data about biodiversity or biodiversity surrogates. Although the past is a crucial source of information to assess the severity of the current biodiversity crisis, substantive conceptual and methodological questions remain about how paleodiversity and biodiversity are to be properly compared. I argue that to justify claims of a current biodiversity crisis is harder than it appears. More precisely, I claim that (...) paleodiversity measurements are incommensurable with contemporary measurements, given the different ways that biodiversity is conceptualized and operationalized. I conclude by proposing three possible ways of overcoming this incommensurability problem. (shrink)