[For an updated version of this thesis, see Frederik A. Bakker, Epicurean Meteorology: Sources, Method, Scope and Organization, Leiden/Boston: Brill, 2016] This dissertation consists of three studies dealing with various aspects of Epicurean cosmology. The first study discusses the Epicurean practice of explaining astronomical and meteorological phenomena by multiple alternative theories. The second study compares the meteorological accounts of Epicurus and Lucretius with other ancient meteorologies as regards the scope and order of their subject matter. The (...) third one examines the claim that Epicurus and Lucretius held the earth to be flat. (shrink)

A. A. Long, one of the world's leading writers on ancient philosophy, presents eighteen essays on the philosophers and schools of the Hellenistic and Roman periods--Epicureans, Stoics, and Sceptics. The discussion ranges over four centuries of innovative and challenging thought in ethics and politics, psychology, epistemology, and cosmology.

In his version of atomism, Lucretius made explicit reference to the concept of an intrinsic declination of the atom, the atomic swerve (clinamen in Latin), stressing that the time and space of the infinitesimal atomic vibration is uncertain. The topic of this article is the Epicurean and Lucretian arguments in favour of the swerve. Our exposition of the Lucretian model of the atomic clinamen will present and elucidate the respective considerations on the alleged role of the swerve in the (...) generation of free-action. (shrink)

This paper examines an ancient debate over the rationality of perception. What leads the Stoics to affirm, and the Epicureans to deny, that to form a sense-impression is an activity of reason? The answer, we argue, lies in a disagreement over what is required for epistemic success. For the Stoics, epistemic success consists in believing the right propositions, and only rational states, in virtue of their predicational structure, put us in touch with propositions. Since they identify some sense-impressions as criteria (...) of truth and thus as the basis for epistemic success, the Stoics maintain that sense-impressions must be rational. The Epicureans agree with the Stoics that sense-impressions function as criteria of truth, and also agree broadly on what it means for a state to be rational, but deny that sense-impressions are rational because (1) they think that epistemic success must be supported by a state that is necessarily error-free and (2) accept that rational states can be false. In reconstructing this debate, we refine the standard interpretation of the fundamental difference between Epicurean and Stoic epistemology and also develop parallels with epistemological debates today. One upshot is a more nuanced appreciation of the merits of Epicurean epistemology vis-à-vis the Stoics. (shrink)

We present a cosmological model (RL+) that offers exact predictions for the Hubble constant, the cosmological constant, the total energy density of the universe, and a curvature that matches current observational constraints. The model predicts a cosmological constant energy density that constitutes approximately 64% of the total energy budget, in agreement with current estimates from the standard LCDM model. Furthermore, the model addresses several longstanding cosmological problems—namely, the problem of infinite initial density, the coincidence problem, and the flatness problem—all with (...) the introduction of a single temporal parameter. (shrink)

The paper discusses the manner and extent to which Epicurean ethics can serve as a general philosophy of life, capable of supporting philosophical practice in the form of philosophical counseling. Unlike the modern age academic philosophy, the philosophical practice movement portrays the philosopher as a personal or corporate adviser, one who helps people make sense of their experiences and find optimum solutions within the context of their values and general preferences. Philosophical counseling may rest on almost any school of (...) philosophy, ranging — in the Western tradition from Platonism to the philosophy of language or logic. While any specialist school of philosophy may serve valuable purposes by elucidating specific aspects of one’s experiences and directing future action, the more ‘generalist’ the philosophy used as the basis for counseling is, the broader and more far-reaching its potential impact on the person undergoing counseling. Epicurean ethics is a prime example of a philosophy of life that is suitable for philosophical counseling today. Its closer examination reveals that, contrary to superficial opinion, it is not opposed to Stoicism and may in fact incorporate Stoicism and its antecedent virtues (including many Christian virtues) in a simple yet comprehensive practical system of directions for modern counseling. (shrink)

I discuss the relevance of the current predicament in cosmology to the debate over scientific realism. I argue that the existence of two, empirically successful but ontologically inconsistent cosmological theories presents difficulties for the realist position.

As persons we are irreducibly unique and essentially relational. In many contexts individual uniqueness has been accentuated at the expense of communal relationality. Our age has been marked by the loss of deep and meaningful relations to one another, and still more dramatically to the earth and its living creatures. The cosmological dimension of human personhood, that is, has been largely obscured. This chapter argues that our age has been marked increasingly by anesthetizing, alienating, and anonymizing tendencies. It proposes three (...) commensurate responses: aestheticization, or embodied philosophical knowing that remains faithful to the earth; anacarnation, or willful return to the wonders of embodied life, purged of romantic sentimentality; and attestation, or speaking up on behalf of the haecceitas or thisness of living creatures systematically instrumentalized for profit and pleasure. Together these responses help us to regain touch with animality by embracing the earth that hosts us, thus becoming more gracious guests, and to become more fully human by becoming better hosts to the multitude of earth's creatures, whose lives hang in the balance. (shrink)

The Epicureans advocate a moderately ascetic lifestyle on instrumental grounds, as the most effective means to securing tranquility. The virtuous person will reduce his desires to what is natural and necessary in order to avoid the trouble and anxiety caused by excessive desire. So much is clear from Epicurus' general ethics. But the later Epicurean Philodemus fills in far more detail about the attitude a wise Epicurean will take toward wealth in his treatise On Property Management. This paper (...) explores some of Philodemus' distinctive doctrines and argues that Philodemus' position on crafts is an improvement on the Socratic and Aristotelian positions that he is reacting against. Philodemus rejects both constraints on what counts as a genuine craft proposed by Socrates in the Gorgias: that a craft aims at a genuine good, and that it is based on a grasp of the nature of its subject. Philodemus also rejects the attempts of Xenophon and Theophrastus to preserve an important place for the craft of property management, conceived of as aiming at maximizing your wealth, within the Socratic and Aristotelian ethical tradition that puts virtue and virtuous activity at the center of the happy life. According to Philodemus, cultivating and exercising the traditional technê of property management is actually incompatible with being a virtuous person and obtaining happiness. (shrink)

Epicurus is strongly committed to psychological and ethical egoism and hedonism. However, these commitments do not square easily with many of the claims made by Epicureans about friendship: for instance, that the wise man will sometimes die for his friend, that the wise man will love his friend as much as himself, feel exactly the same toward his friend as toward himself, and exert himself as much for his friend's pleasure as for his own, and that every friendship is worth (...) choosing for its own sake. These claims have led some scholars to assert that Epicurus inconsistently affirms that friendship has an altruistic element. I argue that the Epicurean claims about friendship can be reconciled with egoism and hedonism in psychology and ethics. Friendship is valuable because having friends provides one with security more effectively than any other means, and having confidence that one will be secure in the future either is identical to ataraxia, or the grounds on which one has it. (shrink)

I argue that some important elements of the current cosmological model are 'conventionalist’ in the sense defined by Karl Popper. These elements include dark matter and dark energy; both are auxiliary hypotheses that were invoked in response to observations that falsified the standard model as it existed at the time.

Many Epicurean arguments for the claim that death is nothing to us depend on the ‘Experience Constraint’: the claim that something can only be good or bad for us if we experience it. However, Epicurus’ commitment to the Experience Constraint makes his attitude to will-writing puzzling. How can someone who accepts the Experience Constraint be motivated to bring about post mortem outcomes?We might think that an Epicurean will-writer could be pleased by the thought of his/her loved ones being (...) provided for after his/her death. Warren has argued that this does not dissolve the puzzle, since it involves a hope which the Epicurean should take to be empty just as the fear of death is empty. However, if it is a necessary condition of an emotion’s being empty that it involve accepting a claim which is not only false but also harmful it is not clear that this hope is indeed ‘empty’: there is a crucial disanalogy between fearing death and hoping for the prosperity of one’s children here. And if emptiness does... (shrink)

This paper provides a taxonomy of cosmological arguments and givesgeneral reasons for thinking that arguments that belong to a given category do not succeed.

Epicurus thought that the conventional values of Greek society—in particular, its celebration of luxury and wealth—often led people astray. It is by rejecting these values, reducing our desires, and leading a moderately ascetic life that we can attain happiness. But Epicurus’ message is also pertinent for those of us in modern Western culture, with an economy based on constant consumption and an advertising industry that molds us to serve that economy by enlarging our desires. This paper begins with an outline (...) of some of the basic tenets of Epicurean ethics, followed by an explanation of how these tenets lead to an Epicurean diagnosis of what ails modern consumers and of the cure they would propose. The paper closes with a consideration of recent psychological research in well-being and how it supports the Epicurean position. (shrink)

The interest for versions of cosmological argument formulated in non-causal terms had increased in the last years. In this paper I shall argue that the cosmological argument of contingency is better understood in noncausal terms and I shall explore how the ontological dependence of the universe on God presupposed by this cosmological argument can be understood in terms of the identityessential account for ontological dependence championed by Kit Fine. First, I discuss the reasons for considering that the cosmological argument of (...) contingency is about constant or constitutive ontological (noncausal) dependence. Second, I present the essentialist account of ontological dependence by Kit Fine. Third, I examine the perplexities involving the ontological argument of contingency in the framework of identity-essential dependence. My conclusion is that, under the cosmological argument of contingency plus an identity-essential account of ontological dependence, all contingent things depend on God in a collective way, not an individual one. The collective essence of the totality of contingent things requires God, even although none of these things individually need to have God in their individual essences. (shrink)

In ’Abortion and deprivation: a reply to Marquis’, Anna Christensen contends that Don Marquis’ influential ’future like ours’ argument for the immorality of abortion faces a significant challenge from the Epicurean claim that human beings cannot be harmed by their death. If deprivation requires a subject, then abortion cannot deprive a fetus of a future of value, as no individual exists to be deprived once death has occurred. However, the Epicurean account also implies that the wrongness of murder (...) is also not grounded in the badness of death, which is strongly counterintuitive. There is an alternative: we can save our intuitions by adopting a more moderate Epicurean account such as that proposed by David Hershenov, who grounds the wrongness of killing in the prevention of the benefit of further good life rather than in the badness of death. Hershenov’s account, however, is equally applicable to Marquis’ argument: abortion similarly prevents a fetus from enjoying the benefit of a future like ours. Consequently, we conclude that Christensen’s criticism of Marquis’ argument fails to undermine his reasoning. (shrink)

In a recent paper, Gray, Knickman, and Wegner present three experiments which they take to show that people judge patients in a persistent vegetative state to have less mental capacity than the dead. They explain this result by claiming that people have implicit dualist or afterlife beliefs. This essay critically evaluates their experimental findings and their proposed explanation. We argue first that the experiments do not support the conclusion that people intuitively think PVS patients have less mentality than the dead. (...) And second, we provide an alternative explanation of our ascriptions of mentality to the dead and PVS patients, one which turns on Epicurean considerations about the nature of death. (shrink)

This chapter addresses philosophical questions raised in contemporary work on cosmology. It provides an overview of the Standard Model for cosmology and argues that its deficiency in addressing theories regarding the very early universe can be resolved by introducing a dynamical phase of evolution that eliminates the need for a special initial state. The chapter also discusses recent hypotheses about dark matter and energy, issues that it relates to philosophical debates about underdetermination.

The book discusses the structure, content, and evaluation of cosmological arguments. The introductory chapter investigates features essential to cosmological arguments. Traditionally, cosmological arguments are distinguished by their appeal to change, causation, contingency or objective becoming in the world. But none of these is in fact essential to the formulation of cosmological arguments. Chapters 1-3 present a critical discussion of traditional Thomistic, Kalam, and Leibnizian cosmological arguments, noting various advantages and disadvantages of these approaches. Chapter 4 offers an entirely new approach (...) to the cosmological argument - the approach of theistic modal realism. The proper explananda of cosmological arguments on this approach is not change, causation, contingency or objective becoming in the world. The proper explananda is the totality of metaphysical reality - all actualia and all possibilia. The result is the most compelling and least objectionable version of the cosmological argument. (shrink)

Epicurean ethics has been subject to withering ancient and contemporary criticism for the supposed irreconcilability of Epicurus’s emphatic endorsement of friendship and his equally clear and striking ethical egoism. Recently, Matthew Evans (2004) has suggested that the key to a plausible Epicurean response to these criticisms must begin by understanding why friendship is valuable for Epicurus. In the first section of this paper I develop Evans’ suggestion further. I argue that a shared conception of the human telos and (...) of what is required to attain it structures the confidence that characterizes friendship. In the second part of the paper I return to two contemporary criticisms of Epicurean friendship. The first criticism focuses on the problem of free riders. The second criticism points to a seeming inconsistency in Epicurean doctrine. I suggest that both criticisms can be adequately addressed once we understand Epicurean friendship in greater depth. (shrink)

The Acceptance of the Epicurean Thesis on Pleasure as the Absence of Pain -/- In this paper, I will argue that the Epicurean thesis on pleasure (hēdonē) as the absence of pain is a true claim and, moreover, is plausible. First, I will give justifications for the acceptance of pleasure as the absence of pain, as the Epicureans intended it to be understood. Then, I will offer further justification for the acceptance of a more extreme thesis on pleasure, (...) specifically the Epicurean thesis which is interpreted to mean that the greatest pleasure occurs in the complete absence of pain. In order to do this, I present the following premises to support the irrefutability of the Epicurean thesis on pleasure. For the first premise, I present the Epicurean belief of the blessed life with respect to the pleasure-pain relationship. Forthe second premise, I discuss the extent to which Epicurean pleasure is hedonistic in nature. For the third premise, I show that, in the Epicurean philosophy, there is calculation of pleasure and pain, which is an important contributing factor to the plausibility of the thesis. Thus, the premises support the plausibility and, in fact, lead to the coherent acceptance of the Epicurean thesis on pleasure as the absence of pain and, more specifically, the greatest pleasure as the complete absence of pain. (shrink)

Epicureans and Stoics reject the independent existence of the Platonic Ideas. This paper assesses what both schools put forward as substitutes for universals. Both Epicureans and Stoics appeal to an a posteriori mental capacity for generalisation but that is where their shared commitments end. the divergences are mapped out, against a tendency in historiography to assimilate the two strategies, and both theories are then analysed independently.

This paper is a reply to Professor William Lane Craig's “Graham Oppy On The kalām Cosmological Argument” Sophia 32.1, 1993, pp. 1–11. Further references to the literature are contained therein.

Through a radical new reading of the Theological Political Treatise, Dimitris Vardoulakis argues that the major source of Spinoza’s materialism is the Epicurean tradition that re-emerges in modernity when manuscripts by Epicurus and Lucretius are rediscovered. This reconsideration of Spinoza’s political project, set within a historical context, lays the ground for an alternative genealogy of materialism. Central to this new reading of Spinoza are the theory of practical judgment (understood as the calculation of utility) and its implications for a (...) theory of democracy that is resolutely positioned against authority. (shrink)

ABSTRACT: Hobbes belonged to philosophical and scientific circles grappling with the big question at the dawn of modern physics: materialism and its consequences for morality. ‘Matter in motion’ may be a core principle of this materialism but it is certainly inadequate to capture the whole project. In wave after wave of this debate the Epicurean view of a fully determined universe governed by natural laws, that nevertheless allows to humans a sphere of libertas, but does not require a creator (...) god or teleology to explain it, comes up against monotheism and its insistence on the incoherence of an ordered world in the absence of a God and his purposes. The following questions were central to this debate: Can we understand the universe as law-governed in the absence of a god? If so, what room is there in a fully determined mechanical universe for human freedom? If humans do enjoy freedom, does the same hold for other animals? Is this freedom compatible with standard views of morality? (shrink)

This chapter offers an overview of the Epicurean conception of philosophy, with special attention to the value of physics. The Epicureans value physics not only for its ability to help remove superstitious beliefs about the gods and death, but also for its ability to stabilize our beliefs and to give causal accounts of ethically-relevant kinds such as pleasure and desire.

This essay aims to provide a self-contained introduction to time in relativistic cosmology that clarifies both how questions about the nature of time should be posed in this setting and the extent to which they have been or can be answered empirically. The first section below recounts the loss of Newtonian absolute time with the advent of special and general relativity, and the partial recovery of absolute time in the form of cosmic time in some cosmological models. Section II (...) considers the beginning and end of time in a broader class of models in which there is not an analog of Newtonian absolute time. As we will see, reasonable physical assumptions imply that the universe is finite to the past, and Section III turns to consideration of the “beginning” itself. We critically review conventional wisdom that a “singularity” reveals flaws in general relativity and briefly assess ways of avoiding the singularity. (shrink)

Richard Gale and Alexander Pruss contend that their ‘new cosmological argument’ is an improvement over familiar cosmological arguments because it relies upon a weaker version of the Principle of Sufficient Reason than that used in those more familiar arguments. However, I note that their ‘weaker’ version of the Principle of Sufficient Reason entails the ‘stronger’ version of that principle which is used in more familiar arguments, so that the alleged advantage of their proof turns out to be illusory. Moreover, I (...) contend that, even if their argument did rely on a weaker version of the Principle of Sufficient reason, nontheists would still be perfectly within their rights to refuse to accept the conclusion of the argument. (shrink)

The current cosmological models are built based on general relativity. The solutions of the specific equations, Friedmann-Lemaître-Robertson-Walker, allow to model the evolution of the universe starting from the Big Bang. Some of the parameters of the universe have been established by observations. Based on these, and other observational data, the models can be tested. Predictions include the initial abundance of chemical elements formed in a period of nucleosynthesis during the Big Bang period, the subsequent structure of the universe, cosmic background (...) radiation, and so on. DOI: 10.13140/RG.2.2.23725.64485. (shrink)

The standard model of cosmology is acclaimed in physics as accurate, robust, well-tested, our best scientific theory of the cosmos, but it has had serious anomalies for a while, including the Hubble tension, anomalous galaxies, and the completely unexplained nature of dark energy and dark matter. And lurking behind it all is the lack of a unified theory: General Relativity (GR) and quantum mechanics (QM) are inconsistent. Now startling new observations by the James Webb Space Telescope (JWST) in 2022 (...) of the early universe present the strongest challenge yet to the standard model, and whispers have started that this shows there is something wrong with the fundamental theory, General Relativity itself. This would be a crisis for cosmology. But haven’t they tested this theory already, and shown it is correct? How could it turn out wrong at this late stage? Here we compare the standard cosmology with an alternative fundamental theory, that has a strikingly different overall cosmological behavior: a simple cyclic expansion function. It is simple and deterministic. There are only two or three general parameters. The interesting result is that this alternative cosmology: (A) closely matches the expansion observed and modelled through the CDM standard model, now going back to red-shifts of 5-15; and (B) it also predicts unexpected early galaxy formation now being reported by the JWST. The point here is not to try to prove this alternative theory however, but rather show how it compares to the conventional cosmology. This show us clearly how weak the empirical evidence for the standard model really is against a counterfactual fundamental theory. Some results established in science are robust against theory change, but we find the standard cosmological model and the implications drawn from it are not robust at all. (shrink)

Modern scientific cosmology pushes the boundaries of knowledge and the knowable. This is prompting questions on the nature of scientific knowledge. A central issue is what defines a 'good' model. When addressing global properties of the Universe or its initial state this becomes a particularly pressing issue. How to assess the probability of the Universe as a whole is empirically ambiguous, since we can examine only part of a single realisation of the system under investigation: at some point, data (...) will run out. We review the basics of applying Bayesian statistical explanation to the Universe as a whole. We argue that a conventional Bayesian approach to model inference generally fails in such circumstances, and cannot resolve, e.g., the so-called 'measure problem' in inflationary cosmology. Implicit and non-empirical valuations inevitably enter model assessment in these cases. This undermines the possibility to perform Bayesian model comparison. One must therefore either stay silent, or pursue a more general form of systematic and rational model assessment. We outline a generalised axiological Bayesian model inference framework, based on mathematical lattices. This extends inference based on empirical data (evidence) to additionally consider the properties of model structure (elegance) and model possibility space (beneficence). We propose this as a natural and theoretically well-motivated framework for introducing an explicit, rational approach to theoretical model prejudice and inference beyond data. (shrink)

In this paper, I examine Kant’s discussion of ‘the cosmological argument’ in The Critique of Pure Reason, Transcendental Doctrine of Elements, Second Part, Second Division, Book 2, Chapter Three, Section Five (‘The Impossibility of a Cosmological Proof of the Existence of God’). While there are other places where Kant provides related discussions of ‘the cosmological argument’—e.g. in The Only Possible Argument in Support of a Demonstration of the Existence of God, Lectures on Philosophical Theology, and Religion within the Limits of (...) Reason Alone—I do not attempt to consider any of these further works in this paper. First, I argue that it is not true that cosmological arguments depend upon ontological arguments, and that Kant is simply mistaken when he argues that ‘the cosmological argument’ ‘assumes’ ‘the ontological argument’. Second, I argue that Kant does not provide a compelling critique of cosmological arguments to the conclusion that there is an absolutely necessary being. (shrink)

In the first months of the COVID-19 pandemic, we created and implemented from November 2020 to February 2021 a monthly educational pilot program of philosophical management of stress based on Science, Humanism and Epicurean Pragmatism, which was offered to employees of 26 municipalities in the Prefecture of Attica, Greece. The program named “Philosophical Distress Management Operation System” (Philo.Di.M.O.S.) is novel and unique in its kind, as it combines a certain Greek philosophical tradition (Epicurean) that concurs with modern scientific (...) knowledge. The program was designed to be implemented in a period of crisis; therefore, it used a fast-paced, easy to learn and practice philosophical approach to stress management, based on cognitive psychotherapy. The philosophical approach to stress management has the advantage that it can be offered to most people, regardless of age and educational level. The pilot program was effective in achieving its objectives, shown by statistical comparisons of the trainees’ responses to anonymous questionnaires before and after the month-long training. The successful Philo.Di.M.O.S. program, thus, based on a solid scientific and philosophical basis, offers a paradigm of stress management during crises and could be useful in Greece and internationally. (shrink)

In this paper, it is argued that there can be necessary and non-natural desires. After a discussion about what seems wrong with such desires, Epicurus’ classification of desires is treated similarly to Kripke’s treatment of the Kantian table of judgments. A sample of three cases is suggested to make this point.

There seems to be universal agreement among Epicurean scholars that friendship characterized by other-concern is conceptually incompatible with Epicureanism understood as a directly egoistic theory. I reject this view. I argue that once we properly understand the nature of friendship and the Epicurean conception of our final end, we are in a position to demonstrate friendship’s compatibility with, and centrality within, Epicureanism’s direct egoism.

I argue that both Hobbes and Spinoza rely on a pivot epicurean idea to form their conceptions of the social contract, namely, the idea that the human acts by calculating their utility. However, Hobbes and Spinoza employ this starting principle in different ways. For Hobbes, this only makes sense if the calculation of utility is regulated by fear as the primary political emotion. For Spinoza, there is no primary emotion and the entire construction of the social contract relies on (...) how the calculation of utility is carried out. I argue that this conception of the social contract leads Spinoza to espouse a radical position about the political, which has been overlooked by those like Antonio Negri who read Spinoza as a radical democrat. (shrink)

In answer to the question "why is there something rather than nothing?" this book is not like the cosmological theory you learned in school. It is not that there was a big bang in the beginning that resulted in every property from nothing. Rather, the question is examined as experience and phenomena. The "something" means the properties of the things and places that come to our conscious awareness of what it is like for each of us to observe something from (...) our own microcosmic center of the universe. This necessarily entails a consideration of astrology and correlative worlds. In contrast to how astrology is typically described as "influences," this approach uses a hierarchy/equality framework that relates mind to the cosmological order. Axiom-like principles and theories are used to introduce you, as the "astrological native," to your environmental interactions modeled into fundamental properties described in categories of urges, values, intentions, and skills. (shrink)

I investigate the role of stability in cosmology through two episodes from the recent history of cosmology: Einstein’s static universe and Eddington’s demonstration of its instability, and the flatness problem of the hot big bang model and its claimed solution by inflationary theory. These episodes illustrate differing reactions to instability in cosmological models, both positive ones and negative ones. To provide some context to these reactions, I also situate them in relation to perspectives on stability from dynamical systems (...) theory and its epistemology. This reveals, for example, an insistence on stability as an extreme position in relation to the spectrum of physical systems which exhibit degrees of stability and fragility, one which has a pragmatic rationale, but not any deeper one. (shrink)

Some artworks are called sublime because of their capacity to move human imagination in a different way than the experience of beauty. The following discussion explores how Van Gogh’s The Starry Night along with some of his other late landscape paintings accomplish this peculiar movement of imagination thus qualifying as sublime artworks. These artworks constitute examples of the higher aesthetic principles and must be judged according to the cosmological-aesthetic criteria for they manage to generate a transition between ethos and phusis (...) and present them in unity. Here, referring to Heraclitean, Kantian, Nietzschean and Heideggerian metaphysics and aesthetics, I propose that the principles of motion and transition be the new cosmologic-aesthetic categories for the judgment of sublime artworks as well as for the understanding of the world (Weltanschauung) they represent. (shrink)

We develop and apply a multi-dimensional conception of explanatory depth towards a comparative analysis of inflationary and bouncing paradigms in primordial cosmology. Our analysis builds on earlier work due to Azhar and Loeb (2021) that establishes initial condition fine-tuning as a dimension of explanatory depth relevant to debates in contemporary cosmology. We propose dynamical fine-tuning and autonomy as two further dimensions of depth in the context of problems with instability and trans-Planckian modes that afflict bouncing and inflationary approaches (...) respectively. In the context of the latter issue, we argue that the recently formulated trans-Planckian censorship conjecture leads to a trade-off for inflationary models between dynamical fine-tuning and autonomy. We conclude with the suggestion that explanatory preference with regard to the different dimensions of depth is best understood in terms of differing attitudes towards heuristics for future model building. (shrink)

Robert Koons has recently defended what he claims is a successful argument for the existence of a necessary first cause, and which he develops by taking “a new look” at traditional arguments from contingency. I argue that Koons’ argument is less than successful; in particular, I claim that his attempt to “shift the burden of proof” to non-theists amounts to nothing more than an ill-disguised begging of one of the central questions upon which theists and non-theists disagree. I also argue (...) that his interesting attempt to bridge (part of) the familiar gap between the claim that there is a necessary first cause and the claim that God exists is beset with numerous difficulties. (shrink)

In the first few pages of chapter 4 of his Theological Political Treatise (1670), Spinoza defines his conception of the law. In fact, he defines the law twice, first in terms of compulsion or necessity and then in terms of use. I would like to investigate here these definitions, in particular the second one, as it is Spinoza’s preferred one. The difficulty with understanding this definition is that it contains an expression, ratio vivendi, that is repeated several times in the (...) first few pages of chapter 4, but, unless it is taken as a technical term referring to law as use, it is easy to mistake it as a casual expression that might mean different things each time. As a result, it is indispensable to turn to the Latin text to unlock the technical meaning of ratio vivendi. The result will be that Spinoza's conception of the law aligns with the epicurean conception of the law understood in terms of use. (shrink)

Pierre Gassendi was a major factor in the revival of Epicureanism in early modern philosophy, not only through his contribution to the restoration and criticism of Epicurean texts, but also by his adaptation of Epicurean ideas in his own philosophy, which was itself influential on such important figures of early modern philosophy as Hobbes, Locke, Newton, and Boyle (to name just a few). Despite his vigorous defense of certain Epicurean ideas and ancient atomism, Gassendi goes to great (...) lengths to differentiate his philosophy from Epicureanism on certain key points. In this paper I argue that those key points on which Gassendi rejects and and criticizes the Epicurean view, such as the immortality of the soul and divine creation of the cosmos, are central not only to Epicureanism, but also to Gassendi's own philosophy. In order to see Gassendi's philosophy for what it is, and understand its role in the history of natural theology, we need accept and understand better why he rejected the central theses of Epicureanism. (shrink)

We develop a Bayesian framework for thinking about the way evidence about the here and now can bear on hypotheses about the qualitative character of the world as a whole, including hypotheses according to which the total population of the world is infinite. We show how this framework makes sense of the practice cosmologists have recently adopted in their reasoning about such hypotheses.

In his dialogue, 'Non posse suaviter vivi secundum Epicurum', Plutarch of Chaeronea criticizes Epicurus for not believing that the gods are provident over human affairs and for not believing that our souls survive death. However, Plutarch’s arguments are striking in that they do not offer any theoretical justification for believing either of these religious claims to be true; rather, they aim to establish that we are practically justified in adopting them if we follow Epicurus’s rule that the goal of belief (...) is not truth in its own right, but mental tranquility. I argue that this form of argument assumes a novel justificatory theory of religious belief, based in Epicurean thought, that I call ‘strong doxastic hedonism.’. (shrink)

This paper examines the significance of Epicureanism for Nietzsche’s critique of Christian monotheism and his subsequent attempt to reanimate a kind of this-worldly, affirmative religiosity of immanence. After a brief overview of the pivotal role that Epicurus’ thought plays in the death of God, I focus on Epicurus’ own residual conception of the gods and the ways in which Nietzsche strategically retrieves it and puts it use in his writing. Nietzsche juxtaposes the distant, serene, indifferent Epicurean gods with the (...) omniscient, intrusive, jealous and needy God of middle-Eastern monotheisms. One might say that they constitute a ‘halfway house’ of sorts between Christianity and Nietzsche’s new Dionysian religion of the earth. But they also figure prominently in his own conflicted desire to intervene in the aleatory course of natural history and legislate the the future of humanity: Nietzsche finds he cannot simply look down with “the mocking and aloof eyes” of an Epicurean god upon the degeneration and diminution of the human being under Christian ascetic regimes of cultivation. Ultimately, Nietzsche fails to achieve the divine temperament of the Epicurean gods (looking down from afar on human ignorance, desire and suffering with a noble pathos of distance). Forthcoming 2022. (shrink)

We draw out significant consequences of a relatively popular theory of metaphysical modality—branching actualism—for cosmological arguments for God’s existence. According to branching actualism, every possible world shares an initial history with the actual world and diverges only because causal powers (or dispositions, or some such) are differentially exercised. We argue that branching actualism undergirds successful responses to two recent cosmological arguments: the Grim Reaper Kalam argument and a modal argument from contingency. We also argue that branching actualism affords a response (...) to one popular defense of the classic contingency argument. What results are new difficulties for several cosmological arguments arising from the metaphysics of modality. (shrink)

We formulate a sort of "generic" cosmological argument, i.e., a cosmological argument that shares premises (e.g., "contingent, concretely existing entities have a cause") with numerous versions of the argument. We then defend each of the premises by offering pragmatic arguments for them. We show that an endorsement of each premise will lead to an increase in expected utility; so in the absence of strong evidence that the premises are false, it is rational to endorse them. Therefore, it is rational to (...) endorse the cosmological argument, and so rational to endorse theism. We then consider possible objections. (shrink)

We ordinarily assume that we have reliable knowledge of our immediate surroundings, so much so that almost all the time we entrust our lives to the truth of what we take ourselves to know, without a moment’s thought. But if, as Karl Popper and others have maintained, all our knowledge is conjectural, then this habitual assumption that our common sense knowledge of our environment is secure and trustworthy would seem to be an illusion. Popper’s philosophy of science, in particular, fails (...) to do justice to the distinction we ordinarily draw between secure knowledge and mere conjecture. But Popper’s philosophy of science, in particular his attempted solution to the problem of induction, is defective. It fails to take into account that physics, in only accepting unified theories, even though endlessly empirically more successful disunified rivals are always available, makes the persistent metaphysical assumption that all disunified theories are false. Once this point is acknowledged, it becomes clear that a new conception of scientific method is required which sees science as making a hierarchy of metaphysical assumptions concerning the comprehensibility and knowability of the universe. This provides a framework of relatively unproblematic assumptions and associated methods of science within which much more problematic assumptions and associated methods can be critically assessed and improved. This hierarchical view seems at first to intensify the problem of distinguishing certainty from conjecture, in that it emphasizes that scientific knowledge, and even humble common sense knowledge, contain usually unacknowledged cosmological conjectures. But actually it explicates the basis we have for drawing the distinction between trustworthy knowledge and mere conjecture, and even goes some way towards providing a rationale for this distinction, in so far as one exists. (shrink)