The articles in this volume offer a fresh perspective on the important role of the concept of law (lex) in the moral and political philosophy of the 'School of Salamanca'.

En esta oportunidad, la filosofía de Mario Bunge nos seduce con la actitud de esos científicos que, poniendo las pruebas a la vista de todos, denuncian las falsificaciones y las supercherías con soltura intelectual y minuciosidad. Les advierto, en todo caso, que éste no es un texto de divulgación sino un ensayo filosófico. No obstante, aunque el marco conceptual es denso, uno recorre sus páginas con un creciente interés, como si este repertorio sistemático de ideas fuese una necesidad (...) ineludible frente al pensamiento débil y las triquiñuelas esotéricas. En el cuerpo de creencias que uno puede rebatir con las argumentaciones de Bunge figuran la parapsicología, el sociologismo, la psicología evolutiva, las ideologías fundamentalistas e incluso algunos postulados políticos y económicos. En el mágico país de las pseudociencias, donde no rige la retórica de la obviedad (sentido común, si lo prefieren) sino el ronroneo de lo posible, la voz del filósofo argentino suena con una especial intensidad. A lo largo del libro, las revelaciones son constantes. Vivimos en una época en la que casi todo vale, como quien dice. El menudeo posmoderno se manifiesta en demasiados ámbitos, conduciéndonos hacia un no man's land en el que los más rigurosos y críticos son los que tienen menos posibilidad de victoria. (shrink)

Body care is considered a key aspect of nursing and imperative for the health, wellbeing, and dignity of older people. In Scandinavian countries, body care as a professional practice has undergone considerable changes, bringing new understandings, values, and dilemmas into nursing. A systematic mapping review was conducted with the aims of identifying and mapping international nursing research on body care of older people in different institutionalized settings in the healthcare system and to critically discuss the dominant assumptions within the research (...) by adapting a problematization approach. Most identified papers reported on empirical research with a biomedical approach focusing on outcome and effectiveness. Conceptual papers, papers with a focus on the perspectives of the older people, or contextual and material aspects were lacking. The research field is dominated by four dominant assumptions: Body care as an evidence‐based practice, body care as a relational ethical practice, the body as a body‐object and a body‐subject, the objects in the body care practices as nonrelational materialities. Given the complexities of professional body care practices, there is a need for other research designs and theoretical perspectives within nursing that expand our understanding of body care taking into consideration the multiple social and material realities. (shrink)

Sexual exploitation and abuse (SEA) by United Nations (UN) peacekeepers causes severe physical and psychological consequences. Where SEA leads to pregnancy and childbirth, peacekeepers typically absolve themselves of their paternal responsibilities and paternity suits are largely unsuccessful. The lack of support for peacekeeper-fathered children (PKFC) tarnishes the image of the UN who fails to implement a victim-centred approach to SEA. Analysing shortcomings in the provision of support, this article presents an evaluation of the UN’s accountability system from the perspective of (...) PKFC families. In-depth interviews with thirty-five PKFC and sixty mothers demonstrate local barriers to child support and paternity claims in eastern Democratic Republic of Congo. We discuss PKFC’s need for assistance and their mothers’ attempts to navigate an opaque international legal system. The findings cast light on their limited access to UN subsidies and offer recommendations to better implement existing UN goals of justice and victim-oriented policies. (shrink)

We prove that the category of Nachbin’s compact ordered spaces and order-preserving continuous maps between them is dually equivalent to a variety of algebras, with operations of at most countable arity. Furthermore, we observe that the countable bound on the arity is the best possible: the category of compact ordered spaces is not dually equivalent to any variety of finitary algebras. Indeed, the following stronger results hold: the category of compact ordered spaces is not dually equivalent to any finitely accessible (...) category, any first-order definable class of structures, and any class of finitary algebras closed under products and subalgebras. An explicit equational axiomatisation of the dual of the category of compact ordered spaces is obtained; in fact, we provide a finite one, meaning that our description uses only finitely many function symbols and finitely many equational axioms. In preparation for the latter result, we establish a generalisation of a celebrated theorem by Mundici: our result—whose proof is independent of Mundici’s theorem—asserts that the category of unital commutative distributive lattice-ordered monoids is equivalent to the category of what we call MV-monoidal algebras.Abstract taken directly from the thesis.E-mail: marco[email protected]: https://air.unimi.it/retrieve/handle/2434/812809/1698986/phd_unimi_R11882.pdf. (shrink)

In Science as Social Knowledge in 1990 and The Fate of Knowledge in 2002, Helen Longino develops an epistemological theory known as Critical Contextual Empiricism (CCE). Knowledge production, she argues, is an active, value-laden practice, evidence is context dependent and relies on background assumptions, and science is a social inquiry that, under certain conditions, produces social knowledge with contextual objectivity. While Longino’s work has been generally well-received, there have been a number of criticisms of CCE raised in the philosophical literature (...) in recent years. In this paper I outline the key elements of Longino’s theory and propose modifications to the four norms offered by the account. The version of CCE I defend, which draws on lessons learned by medical researchers in recent years, gives principles of epistemic diversity a central role and also provides greater specification of three of the four norms. Further, it offers additional resources for defending CCE against Alvin Goldman’s suggestion that there is a need for a “healthy dogmatism” in science, as well as a concern about “manufactured uncertainty” arising out of recent work by David Michaels. Finally, the modified version proposed here is also well positioned to respond (negatively) to a suggestion from Kristen Intemann that CCE needs to be adapted to incorporate a central insight from feminist standpoint theory. In light of the variety of social pressures influencing contemporary scientific research, and the role of science in shaping public policy, I argue that a rigorous social epistemology such as CCE is indispensable for understanding and assessing contemporary scientific practice. (shrink)

In their paper, “Think Pragmatically: Investigators’ Obligations to Patient-Subjects When Research is Embedded in Care,” Stephanie Morain and Emily Largent (2023) argue that investigators, and poss...

Most phase III clinical trials today are explanatory. Because explanatory, or efficacy, trials test hypotheses under “ideal” conditions, they are not well suited to providing guidance on decisions made in most clinical care contexts. Pragmatic trials, which test hypotheses under “usual” conditions, are often better suited to this task. Yet, pragmatic, or effectiveness, trials are infrequently carried out. This mismatch between the design of clinical trials and the needs of health care professionals is frustrating for everyone involved, and explains some (...) of the challenges inherent in attempts to enhance knowledge translation and encourage evidence-based practice. The situation is more than simply frustrating, however; it is potentially unethical. Clinical trials must be socially valuable in order to (1) warrant the risks they impose on human research subjects and (2) fairly and efficiently assess new clinical interventions. Most bioethicists would agree that trials that have no social value, for instance, because their results do not have the potential to advance clinical care, should not be performed. What is less widely appreciated is that given limited research resources, trials that are more socially valuable should be preferred to trials that are less socially valuable when all else is equal. With respect to clinical trial design, I argue that while explanatory trials often have some social value, many have less social value than their pragmatic counterparts. On the basis of this general ethical assessment, I provide a preliminary defense of the position that clinical researchers should aim to conduct pragmatic trials, that is, that researchers face a burden of justification related to any idealizing elements added to trial designs. (shrink)

The volume of clinical research is increasing exponentially—far beyond our ability to process and absorb the results. Given this situation, it may be beneficial to consider reducing the flow at its source. In what follows, I will motivate and critically evaluate the following proposal: researchers should conduct fewer clinical trials. More specifically, I c onsider whether researchers should be permitted to conduct only clinical research of very high quality and, in turn, whether research ethics committees should prohibit all other, lower-quality (...) research, even when it might appear to meet some minimal ethical standard. Following a close analysis of the social-value requirement of ethical clinical research, I argue that this proposal is defensible. The problem identified in this paper has two parts, quantity and quality, and some clarification is needed about the latter because “quality” is a highly contested term in the medical literature. When some scholars advocate for high-quality trials, they mean large-scale, simple, explanatory randomized controlled trials. Others, including myself, have defended a different characterization of high-quality research that tends more toward pragmatic trial design and the use of methods other than RCTs. Pragmatic trials aim to provide evidence that directly supports clinical decision-making in “usual” care settings. Unlike explanatory trials, which aim to abstract away from particular settings and patients, in the hopes of creating ideal conditions for the success of an intervention, pragmatic trials deliberately pursue knowledge of high applicability, through the use of representative subjects, clinically important questions, flexible treatment protocols, patient-oriented outcome measures, and so on. I see applicability as a marker of high-quality research. The context in which research is meant to be applied should be the context in which new interventions are evaluated. (shrink)

Clinical research has at least three problematic features: it tends to be redundant, secretive, and isolated.1 Research with these features not only wastes resources and causes harm, it also fails to meet a basic ethical requirement of research: scientific validity. As bioethicists, we should be asking why, if research with these three features is ethically unjustified, it has been so routinely approved by research ethics committees over the past half century. In what follows, I provide one answer to this question. (...) The first section of this paper outlines empirical evidence for the redundant, secretive, and isolated nature of much contemporary clinical research. Next, I argue that a lack of clarity .. (shrink)

Amending and Defending Critical Contextual Empiricism: Lessons from Medical Research In Science as Social Knowledge (1990) and The Fate of Knowledge (2002), Helen Longino develops a social epistemological theory known as Critical Contextual Empiricism (CCE). While Longino’s work has been generally well-received, there have been a number of criticisms of CCE raised in the philosophical literature in recent years. In this paper I outline the key elements of Longino’s theory and propose several modifications to the four norms offered by the (...) account. The revisions I propose are shaped by a number of developments in the medical context in recent years. The modified norms, which determined whether a particular community produces objective knowledge, are thus: 1. Avenues for Criticism – there must be recognized avenues for criticism, and these avenues must be publicly accessible and require transparent disclosure of all relevant information (including competing interests) from those who present their ideas. It must also be a community requirement that all members present their ideas for critical scrutiny if they wish them to be recognized as knowledge. 2. Responsiveness to Criticism – the community must be responsive to criticism. 3. Shared Public Standards – there must be some shared standards that determine community membership. Outsiders to a particular community are welcome to engage in critical debates as long as they share at least one of the community standards with the target community. 4. Cultivation of Diverse Perspectives – communities must cultivate diverse perspectives, that is, the perspectives of those who express strong dissent. The version of CCE I defend gives the principle of diversity a more central role than the original and provides greater specification of two of the other norms in light of challenges faced by medical researchers in recent years. The medical context provides us with a number of cautionary tales in which knowledge production that appears to meet the original four norms has been seriously compromised by particular social interests. The proposed modifications attempt to address these ‘loopholes’ in a way that is not ad hoc. I argue that the modifications I suggest are in line with the underlying assumptions and goals of CCE. The modified version of CCE also offers resources for defending CCE against the criticisms leveled against it by Miriam Solomon & Alan Richardson, Alvin Goldman and Philip Kitcher as well as one general concern arising out of a recent work by David Michaels. I provide responses to these criticisms in the final section of the paper. Throughout the paper I connect the theoretical work done in social epistemology to the real practice of knowledge-production as is occurs in the medical context. In light of the variety of social pressures influencing contemporary scientific research, and the role of science in shaping public policy, I argue that a rigorous social epistemology such as CCE is indispensable for understanding and assessing contemporary scientific practice. (shrink)

It now seems technically feasible to culture human embryos beyond the “fourteen‐day limit,” which has the potential to increase scientific understanding of human development and perhaps improve infertility treatments. The fourteen‐day limit was adopted as a compromise but subsequently has been considered an ethical line. Does it remain relevant in light of technological advances permitting embryo maturation beyond it? Should it be changed and, if so, how and why? What justifications would be necessary to expand the limit, particularly given that (...) doing so would violate some people's moral commitments regarding human embryos? Robust stakeholder engagement preceded adoption of the fourteen‐day limit and should arguably be part of efforts to reassess it. Such engagement could also consider the need for enhanced oversight of human embryo research. In the meantime, developing and implementing reliable oversight systems should help foster high‐quality research and public confidence in it. (shrink)

This edited volume evaluates how sport organizations in the public, private, and non-profit sectors define responsible management and sustainability and what these mean in their daily operations. Using country-specific cases, the chapters provide an empirical investigation of sport organizations in each sector, analyzing managerial decisions and policies through a sustainability lens. All chapters are structured in the same way, providing a truly comparative approach. Offering insights for scholars interested in responsibility and sustainability in different context, this volume will be important (...) to undergraduate and postgraduate sport management, event management, sport science, and sport study programs around the globe. (shrink)

Proponents of evidence-based medicine have recently suggested a “4S” approach to clinical decision making in which physicians are advised to rely on increasingly abstract summaries of the available research evidence. This retreat from the original data of medical research is ill-advised: it extends an unjustified evidence hierarchy, overestimates the role of computer systems, divides communities, discards evidence, ignores contexts, and devalues broad critical evaluation. I draw upon feminist social epistemology to evaluate the 4S approach to EBM and to suggest means (...) for improving the evidence base of medical research and practice. (shrink)

This collection of essays by Jewish, Christian and Muslim scholars underscores the significance of sustained and serious ethical, interreligious and interdisciplinary reflection on children. Essays in the first half of the volume discuss fundamental beliefs and practices within the religious traditions of Judaism, Christianity and Islam regarding children, adult obligations to them, and a child's own obligations to others. The second half of the volume focuses on selected contemporary challenges regarding children and faithful responses to them. Marcia J. Bunge (...) brings together scholars from various disciplines and diverse strands within these three religious traditions, representing several views on essential questions about the nature and status of children and adult-child relationships and responsibilities. The volume not only contributes to intellectual inquiry regarding children in the specific areas of ethics, religious studies, children's rights and childhood studies, but also provides resources for child advocates, religious leaders and those engaged in interreligious dialogue. (shrink)

`Being sensitive' in nursing was explored using Schwartz-Barcott and Kim's hybrid model of concept development, producing a tentative definition of the concept. Three phases were employed: theoretical, empirical/fieldwork and analytical. An exploration of the literature identified where the common idea of `being sensitive' as a nurse was embedded and demonstrated that a theoretical development of this fundamental aspect of nursing was absent. The empirical phase was conducted using semistructured interviews with nine expert palliative care and cancer nurses. This method was (...) particularly useful for the exploration of this concept because of its firm grounding in practical example. A definition of what the concept `being sensitive' means in nursing, and subsequent clarification of `being insensitive', have been posed from the research process undertaken. The essential nature of this concept being integral to nursing practice is emphasized. Potential implications for the development of nursing practice through teaching of this concept were identified. (shrink)

Proponents of evidence-based medicine have recently suggested a “4S” approach to clinical decision making in which physicians are advised to rely on increasingly abstract summaries of the available research evidence. This retreat from the original data of medical research is ill-advised: it extends an unjustified evidence hierarchy, overestimates the role of computer systems, divides communities, discards evidence, ignores contexts, and devalues broad critical evaluation. I draw upon feminist social epistemology to evaluate the 4S approach to EBM and to suggest means (...) for improving the evidence base of medical research and practice. (shrink)

This book is about politics, political theory, and political philosophy. Although these disciplines are often conflated because they interact, they actually are distinct. Political theory is part of political science, whereas political philosophy is a hybrid of political theory and philosophy. The former discipline is descriptive and explanatory, whereas the latter is prescriptive--to the point that it is often called "normative theory." It is in fact the evaluative study of political societies. Whereas political theorists describe and explain politics, political philosophers (...) examine it critically and venture to suggest improvements and, on occasion, radically different social futures. Political philosophers propose scenarios and dreams where political scientists offer snapshots of existing polities. While these disciplines are distinct, Mario Bunge asserts that they must inform each other. Political philosophy is not yet a well-defined field: it hovers between political theory and utopian fantasizing. Few, if any earlier thinkers could have anticipated any of the most pressing political issues of our time, such as the need to stop global warming, reduce nuclear armaments, stop the rise of inequality between individuals and nations, and fight authoritarianism, particularly when it comes disguised as democracy or as socialism. Not even more recent social thinkers had much to say about such topical issues as environmental degradation, gender and race discriminations, participative democracy, nationalism, imperialism, the North-South divide, resource wars, the industrial-military complex, or the connections between poverty and environmental degradation, and between inequality and bad health. Beyond ideological divergences, most political philosophers have been nearly unanimous in their indifference to the plight of the Third World. Bunge does not share that indifference. He also believes that political philosophers should pay more attention to numbers, such as the standard index of income inequality and the more comprehensive United Nations human development index for the various nations. It is pointless to write about redistributive policies unless we have some of idea of current wealth distribution. This is, in short a modern treatise of inherited concerns. (shrink)

Chasing Reality deals with the controversies over the reality of the external world. Distinguished philosopher Mario Bunge offers an extended defence of realism, a critique of various forms of contemporary anti-realism, and a sketch of his own version of realism, namely hylorealism. Bunge examines the main varieties of antirealism - Berkeley's, Hume's, and Kant's; positivism, phenomenology, and constructivism - and argues that all of these in fact hinder scientific research. Bunge's realist contention is that genuine explanations in (...) the sciences appeal to causal laws and mechanisms that are not directly observable, rather than simply to empirical generalisations. Genuine science, in his view, is objective even when it deals with subjective phenomena such as feelings of fear. This work defends a realist view of universals, kinds, possibilities, and dispositions, while rejecting contemporary accounts of these that are couched in terms of modal logic and 'possible worlds.'. (shrink)

BackgroundIn 2004, patient advocate groups were major players in helping pass and implement significant public policy and funding initiatives in stem cells and regenerative medicine. In the following years, advocates were also actively engaged in Washington DC, encouraging policy makers to broaden embryonic stem cell research funding, which was ultimately passed after President Barack Obama came into office. Many advocates did this because they were told stem cell research would lead to cures. After waiting more than 10 years, many of (...) these same patients are now approaching clinics around the world offering experimental stem cell-based interventions instead of waiting for scientists in the US to complete clinical trials. How did the same groups who were once the strongest supporters of stem cell research become stem cell tourists? And how can scientists, clinicians, and regulators work to bring stem cell patients back home to the US and into the clinical trial process?DiscussionIn this paper, we argue that the continued marketing and use of experimental stem cell-based interventions is problematic and unsustainable. Central problems include the lack of patient protection, US liability standards, regulation of clinical sites, and clinician licensing. These interventions have insufficient evidence of safety and efficacy; patients may be wasting money and time, and they may be forgoing other opportunities for an intervention that has not been shown to be safe and effective. Current practices do not contribute to scientific progress because the data from the procedures are unsuitable for follow-up research to measure outcomes. In addition, there is no assurance for patients that they are receiving the interventions promised or of what dosage they are receiving. Furthermore, there is inconsistent or non-existent follow-up care. Public policy should be developed to correct the current situation.ConclusionThe current landscape of stem cell tourism should prompt a re-evaluation of current approaches to study cell-based interventions with respect to the design, initiation, and conduct of US clinical trials. Stakeholders, including scientists, clinicians, regulators and patient advocates, need to work together to find a compromise to keep patients in the US and within the clinical trial process. Using HIV/AIDS and breast cancer advocate cases as examples, we identify key priorities and goals for this policy effort. (shrink)

This volume has 41 chapters written to honor the 100th birthday of Mario Bunge. It celebrates the work of this influential Argentine/Canadian physicist and philosopher. Contributions show the value of Bunge’s science-informed philosophy and his systematic approach to philosophical problems. The chapters explore the exceptionally wide spectrum of Bunge’s contributions to: metaphysics, methodology and philosophy of science, philosophy of mathematics, philosophy of physics, philosophy of psychology, philosophy of social science, philosophy of biology, philosophy of technology, moral philosophy, (...) social and political philosophy, medical philosophy, and education. The contributors include scholars from 16 countries. Bunge combines ontological realism with epistemological fallibilism. He believes that science provides the best and most warranted knowledge of the natural and social world, and that such knowledge is the only sound basis for moral decision making and social and political reform. Bunge argues for the unity of knowledge. In his eyes, science and philosophy constitute a fruitful and necessary partnership. Readers will discover the wisdom of this approach and will gain insight into the utility of cross-disciplinary scholarship. This anthology will appeal to researchers, students, and teachers in philosophy of science, social science, and liberal education programmes. 1. Introduction Section I. An Academic Vocation Section II. Philosophy Section III. Physics and Philosophy of Physics Section IV. Cognitive Science and Philosophy of Mind Section V. Sociology and Social Theory Section VI. Ethics and Political Philosophy Section VII. Biology and Philosophy of Biology Section VIII. Mathematics Section IX. Education Section X. Varia Section XI. Bibliography. (shrink)

It now seems technically feasible to culture human embryos beyond the “fourteen‐day limit,” which has the potential to increase scientific understanding of human development and perhaps improve infertility treatments. The fourteen‐day limit was adopted as a compromise but subsequently has been considered an ethical line. Does it remain relevant in light of technological advances permitting embryo maturation beyond it? Should it be changed and, if so, how and why? What justifications would be necessary to expand the limit, particularly given that (...) doing so would violate some people's moral commitments regarding human embryos? Robust stakeholder engagement preceded adoption of the fourteen‐day limit and should arguably be part of efforts to reassess it. Such engagement could also consider the need for enhanced oversight of human embryo research. In the meantime, developing and implementing reliable oversight systems should help foster high‐quality research and public confidence in it. (shrink)

Most people working in bioethics will be familiar with Susan Sherwin's contributions to the field. There is much to be said about the value and importance of Sue's contributions to feminist theory and practice, but in this reflective piece I am going to focus on the experience of teaching Sue's work. This is for three reasons: the first is that I was hired into the Philosophy Department at Dalhousie just as Sue retired and I teach many of the courses she (...) developed, so her philosophical legacy and teaching are intimately related for me. Second, in my observations of Sue's interactions with graduate students (she... (shrink)

This article addresses the following problems: What is a mechanism, how can it be discovered, and what is the role of the knowledge of mechanisms in scientific explanation and technological control? The proposed answers are these. A mechanism is one of the processes in a concrete system that makes it what it is — for example, metabolism in cells, interneuronal connections in brains, work in factories and offices, research in laboratories, and litigation in courts of law. Because mechanisms are largely (...) or totally imperceptible, they must be conjectured. Once hypothesized they help explain, because a deep scientific explanation is an answer to a question of the form, "How does it work, that is, what makes it tick—what are its mechanisms?" Thus, by contrast with the subsumption of particulars under a generalization, an explanation proper consists in unveiling some lawful mechanism, as when political stability is explained by either coercion, public opinion manipulation, or democratic participation. Finding mechanisms satisfies not only the yearning for understanding, but also the need for control. Key Words: explanation • function • mechanism • process • system • systemism. (shrink)

Volume 20, Issue 2, February 2020, Page 25-27.

Based on fieldwork in northern Senegal, this paper shows how some pastoralists in Ferlo have managed to use market opportunities as a means to maintain their “pastoral way of life” Increased market involvement has enlarged the field of opportunities for pastoral activities as well as the vulnerability of these activities. This has given rise to a dialectic process of diversification and specialization. The paper is concerned with the portfolio of livelihood activities pastoralists use in order to respond to adverse socio-economic (...) and environmental conditions. Depending on the possibilities and values of a household, a certain combination of activities is chosen and this may change from one year to another. Hence, the activities are used in a dynamic way within households. On the basis of pastoral livelihood activities, four ideal types of pastoral livelihood strategies can be constructed: “agro-pastoralism,” “Tabaski pastoralism,” “commercial pastoralism,” and “non-herding pastoralism.” These four types illustrate how pastoralists re-invent their livelihoods in order to continue a pastoral way of life. (shrink)

This study aims to examine the key barriers to learning to raise achievement of White British pupils with low?income backgrounds. The main findings suggest that the worryingly low?achievement levels of many White working class pupils have been masked by the middle class success in the English school system and government statistics that fail to distinguish the White British ethnic group by social background. The empirical data confirm that one of the biggest groups of underachievers is the White British working class (...) and their outcomes at each key stage are considerably below those achieved by all other ethnic groups. One of the main reasons for pupil underachievement, identified in the case study schools and focus groups, is parental low aspirations of their children?s education and social deprivation. It is also perpetuated by factors such as low?literacy levels, feelings of marginalisation within the community exacerbated by housing allocation, a lack of community and school engagement, low levels of parental engagement and lack of targeted support to break the cycle of poverty and disadvantage, a legacy of low aspiration that prevents pupils from fulfilling their potential across a range of areas. The study concludes that the main obstacle in raising achievement is the government?s failure to recognise that this group has particular needs that are not being met by the school system. The government needs to recognise that the underachievement of White British working class pupils is not only a problem facing educational services but profoundly a serious challenge. Policy implications and recommendations are discussed in the final section. (shrink)

The recent detection of gravitational waves by the LIGO team has rightly been hailed as “the crowning achievemen of classical physics”. This detection, which came at the end of a decade-long quest, involved 950 investigators, and cost around one billion US dollars, was the scientific star of the year 2015. What, if any, is the philosophical impact of this scientific breakthrough, which Albert Einstein had anticipated one century earlier? To answer this question we start by examining the central equations of (...) Einstein’s theory of gravitation, also known as general relativity. Subsequently we analyze the special case of a hollow sphere, in an attempt to answer the question of the reality and even materiality of space or, rather, spacetime. As well, the view that gravitation is a manifestation of the curvature of spacetime is discussed, and the reality of gravitational waves is regarded as the coup de grâce to that view. (shrink)