This book critically assesses arguments for the existence of the God of classical theism, develops an innovative account of objects’ persistence, and defends new arguments against classical theism. The authors engage the following classical theistic proofs: Aquinas’s First Way, Aquinas’s De Ente argument, and Feser’s Aristotelian, Neo-Platonic, Augustinian, Thomistic, and Rationalist proofs. The authors also provide the first systematic treatment of the ‘existential inertia thesis’. By connecting the thesis to relativity theory and recent developments in the philosophy of physics, (...) and by developing a variety of novel existential-inertia-friendly explanations of persistence, they mount a formidable new case against classical theistic proofs. Finally, they defend new arguments against classical theism based on abstract objects and changing divine knowledge. The text appeals to students, researchers, and others interested in classical theistic proofs, the existence and nature of God, and the ultimate explanations of persistence, change, and contingency. (shrink)

This book focuses on the phenomena of inertia and gravitation, one objective being to shed some new light on the basic laws of gravitational interaction and the fundamental nature and structures of spacetime. Chapter 1 is devoted to an extensive, partly new analysis of the law of inertia. The underlying mathematical and geometrical structure of Newtonian spacetime is presented from a four-dimensional point of view, and some historical difficulties and controversies - in particular the concepts of free particles (...) and straight lines - are critically analyzed, while connections to projective geometry are also explored. The relativistic extensions of the law of gravitation and its intriguing consequences are studied in Chapter 2. This is achieved, following the works of Weyl, Ehlers, Pirani and Schild, by adopting a point of view of the combined conformal and projective structure of spacetime. Specifically, Mach's fundamental critique of Newton's concepts of 'absolute space' and 'absolute time' was a decisive motivation for Einstein's development of general relativity, and his equivalence principle provided a new perspective on inertia. In Chapter 3 the very special mathematical structure of Einstein's field equations is analyzed, and some of their remarkable physical predictions are presented. By analyzing different types of dragging phenomena, Chapter 4 reviews to what extent the equivalence principle is realized in general relativity - a question intimately connected to the 'new force' of gravitomagnetism, which was theoretically predicted by Einstein and Thirring but which was only recently experimentally confirmed and is thus of current interest. (shrink)

To all appearances, the basic building blocks of reality tend to keep existing unless something intervenes to destroy them. In other words, basic things seem to have existential inertia. But why might this be? This paper considers a number of arguments for and against existential inertia. It discusses arguments inspired by Aquinas, Descartes, and Spinoza, as well as considerations deriving from Occam’s Razor, entropy, and certain views about the nature of time and change.

Edward Feser defends the ‘Aristotelian proof’ for the existence of God, which reasons that the only adequate explanation of the existence of change is in terms of an unchangeable, purely actual being. His argument, however, relies on the falsity of the Existential Inertia Thesis, according to which concrete objects tend to persist in existence without requiring an existential sustaining cause. In this article, I first characterize the dialectical context of Feser’s Aristotelian proof, paying special attention to EIT and its (...) rival thesis—the Existential Expiration Thesis. Next, I provide a more precise characterization of EIT, after which I outline two metaphysical accounts of existential inertia. I then develop new lines of reasoning in favor of EIT that appeal to the theoretical virtues of explanatory power and simplicity. Finally, I address the predominant criticisms of EIT in the literature. (shrink)

The “existential inertia” thesis holds that, once in existence, the natural world tends to remain in existence without need of a divine conserving cause. Critics of the doctrine of divine conservation often allege that its defenders have not provided arguments in favor of it and against the rival doctrine of existential inertia. But in fact, when properly understood, the traditional theistic arguments summed up in Aquinas’s Five Ways can themselves be seen to be (or at least to imply) (...) arguments against existential inertia and in favor of divine conservation. Moreover, they are challenging arguments, to which defenders of the existential inertia thesis have yet seriously to respond. (shrink)

The concept of ‘phylogenetic inertia’ is routinely deployed in evolutionary biology as an alternative to natural selection for explaining the persistence of characteristics that appear sub-optimal from an adaptationist perspective. However, in many of these contexts the precise meaning of ‘phylogenetic inertia’ and its relationship to selection are far from clear. After tracing the history of the concept of ‘inertia’ in evolutionary biology, I argue that treating phylogenetic inertia and natural selection as alternative explanations is mistaken (...) because phylogenetic inertia is, from a Darwinian point of view, simply an expected effect of selection. Although Darwin did not discuss ‘phylogenetic inertia,’ he did assert the explanatory priority of selection over descent. An analysis of ‘phylogenetic inertia’ provides a perspective from which to assess Darwin’s view. (shrink)

The term ‘inertia’ is often used to describe a kind of irrational resistance to change in individuals or institutions. Institutions, ideas and power structures appear to become entrenched over time, and may become ineffective or obsolete, even if they once played a legitimate or useful role. In this paper I argue that there is a common set of problems underlying the occurrence of resistance to change in individuals, social structures and the development of knowledge. Resistance to change is not (...) always irrational or problematic; it is also necessary to allow stable personal identities and social structures to survive in a constantly changing world. I offer a historical and theoretical framework for the question of inertia. Finally, I argue that philosophy has often seen its task to be the critique of ossified, inert or obsolete ideas and social structures, but that it has neglected the positive dimension of resistance to change. Normal 0 false false false EN-GB X-NONE X-NONE. (shrink)

Inertia is enshrined in Newton’s first law of motion, a body at rest or in uniform motion remains in that state unless a force is applied to it. Now, consider (1). (1) Pat stopped the car before it hit the tree. Can we conclude from (1) that the car struck the tree? Not without further information such as that supplied in (2). (2) But the bus behind kept going. A post-condition for Pat stopping the car is that the car (...) be at rest. To satisfy a pre-condition for the car hitting the tree (namely, that the car not be at rest), inertia requires that some intervening force act on the car (as hinted, for example, by (2)). In the absence of such a force, (1) would appear to suggest that Pat prevented a collision between car and tree. Exactly what bit of physics are we importing into natural language interpretation here? Oversimplified, Newton’s first law of motion says: no change without force. Identifying force with cause, we come to the slogan no temporality without cause, capturing in a phrase the proposal from Steedman 2000 that.. (shrink)

In this article, I examine Michael Bratman’s account of stability in his planning theory of intention. Future-directed intentions should be stable, or appropriately resistant to change, over time. Bratman claims that the norm of stability governs both intentions and plans. The aim of this article is to critically enrich Bratman’s account of stability by introducing plasticity as an additional norm of planning. I construct plasticity as a kind of stability of intentions which supplements Bratman’s notion of “reasonable stability.” Unlike the (...) latter, plasticity applies mainly to cases in which plan states are abandoned without reconsideration. I focus on the intra-theoretical problems of PTI and elucidate: the distinction between future-directed intentions and plans, the conceptual difference between stability and inertia, which is only implicit in PTI, and the role of the environment of the planner, which has a vestigial role in Bratman’s work. I also defend my incorporation of pl... (shrink)

The best arguments for the 1/3 answer to the Sleeping Beauty problem all require that when Beauty awakes on Monday she should be uncertain what day it is. I argue that this claim should be rejected, thereby clearing the way to accept the 1/2 solution.

Leibniz considered that there are substances in a body, each of which does not solely have a shape and size and can act spontaneously. Although he started to regard bodies as having inherent substantial forces in 1678–79, what exactly led him to suppose this is not obvious. The author aims to articulate Leibniz's most important motivation for "restoring" substantial forms. He first notes that Leibniz considered that every body tends to slow down because of its natural inertia. He then (...) discusses that Leibniz had two arguments to postulate the existence of substantial forms, the first of which is based on his view that God providentially manages the universe in the most efficient way. The second and more interesting argument is based on Leibniz's understanding of science, according to which a scientific explanation of motion should be given in terms of the nature of the body. (shrink)

This article analyzes investors’ portfolio selection problems in a two-period dynamic model of Knightian uncertainty. We account for the existence of portfolio inertia in this two-period framework. Furthermore, by incorporating investors’ updating behavior, we analyze how observing new information in the first period will affect investors’ behavior. By this analysis, we show that observing new information in the first period will expand portfolio inertia in the second period compared with the case in which observing new information has not (...) been gained in the first period if the degree of Knightian uncertainty is sufficiently large. (shrink)

Evidentialists say that a necessary condition of sound epistemic reasoning is that our beliefs reflect only our evidence. This thesis arguably conflicts with standard Bayesianism, due to the importance of prior probabilities in the latter. Some evidentialists have responded by modelling belief-states using imprecise probabilities (Joyce 2005). However, Roger White (2010) and Aron Vallinder (2018) argue that this Imprecise Bayesianism is incompatible with evidentialism due to “inertia”, where Imprecise Bayesian agents become stuck in a state of ambivalence towards hypotheses. (...) Additionally, escapes from inertia apparently only create further conflicts with evidentialism. This dilemma gives a reason for evidentialist imprecise probabilists to look for alternatives without inertia. I shall argue that Henry E. Kyburg’s approach offers an evidentialist-friendly imprecise probability theory without inertia, and that its relevant anti-inertia features are independently justified. I also connect the traditional epistemological debates concerning the “ethics of belief” more systematically with formal epistemology than has been hitherto done. (shrink)

I argue that, according to ordinary morality, there is moral inertia, that is, moral pressure to fail to intervene in certain circumstances. Moral inertia is manifested in scenarios with a particular causal structure: deflection scenarios, where a threatening or benefiting process is diverted from a group of people to another. I explain why the deflection structure is essential for moral inertia to be manifested. I argue that there are two different manifestations of moral inertia: strict prohibitions (...) on interventions, and constraints on interventions. Finally, I discuss the connection between moral inertia and the distinction between killing and letting die (or doing and allowing harm). (shrink)

The concept of ‘phylogenetic inertia’ is routinely deployed in evolutionary biology as an alternative to natural selection for explaining the persistence of characteristics that appear sub-optimal from an adaptationist perspective. However, in many of these contexts the precise meaning of ‘phylogenetic inertia’ and its relationship to selection are far from clear. After tracing the history of the concept of ‘inertia’ in evolutionary biology, I argue that treating phylogenetic inertia and natural selection as alternative explanations is mistaken (...) because phylogenetic inertia is, from a Darwinian point of view, simply an expected effect of selection. Although Darwin did not discuss ‘phylogenetic inertia,’ he did assert the explanatory priority of selection over descent. An analysis of ‘phylogenetic inertia’ provides a perspective from which to assess Darwin’s view. (shrink)

Several variant "Newtonian" theories of inertia and gravitation are described, and their scientific usefulness discussed. An examination of these theories is used to throw light on traditional epistemological and metaphysical questions about space and time. Finally these results are examined in the light of the changes induced by the transition from "Newtonian" to general relativistic spacetime.

Suppose all of the particles in the universe should happen to come to rest at the same time, in positions so arranged that all of the forces on every particle balance to zero at that time. What would happen next? Or rather, what does Newtonian mechanics say will happen next? Preface Inertia and Stasis 2.1 Stating the Law of Inertia more precisely 2.2 The stasis scenario Indeterministic Examples 3.1 Abstract example 3.2 Second example Non-Lipschitz Forces and Determinism Beyond (...) the Stasis Scenario CiteULike Connotea Del.icio.us What's this? (shrink)

As Harvey Brown emphasizes in his book Physical Relativity, inertial motion in general relativity is best understood as a theorem, and not a postulate. Here I discuss the status of the "conservation condition", which states that the energy-momentum tensor associated with non-interacting matter is covariantly divergence-free, in connection with such theorems. I argue that the conservation condition is best understood as a consequence of the differential equations governing the evolution of matter in general relativity and many other theories. I conclude (...) by discussing what it means to posit a certain spacetime geometry and the relationship between that geometry and the dynamical properties of matter. (shrink)

Change can be difficult to achieve, and system inertia may be considered relevant. There is a tendency for dynamic systems to enter into specific states characterized by stabilizing factors. The present work attempts to define inertia processes and explores these with regard to pro-environmental behaviour and decision-making. Inertia processes can be considered both within an organizational context and from the level of the individual, and may involve a number of psychological processes and aspects of the decision-making process. (...) A few suggestions for research are also presented. (shrink)

There is a complicated relation between social and political inertia – the failure of institutions to respond adequately to social, technological and environmental change – and social acceleration – the tendency of social change to go faster and faster. Social stasis and acceleration are not simply opposed but also causally related. This article contrasts two theories of political and social inertia. Francis Fukuyama argues that political inertia is a result of a cognitive and institutional rigidity which is (...) ultimately grounded in human nature, and that therefore inertia is a feature inherent in political systems. Hartmut Rosa, by contrast, sees inertia as a specifically modern phenomenon, which is the result of the inability of political institutions to cope with the accelerating rate of change in other social systems. It will be argued that a broad approach combining historical, institutional and normative perspectives is needed to explain political inertia. (shrink)

In this paper I try to sort out a tangle of issues regarding time, inertia, proper time and the so-called “clock hypothesis” raised by Harvey Brown's discussion of them in his recent book, Physical Relativity. I attempt to clarify the connection between time and inertia, as well as the deficiencies in Newton's “derivation” of Corollary 5, by giving a group theoretic treatment original with J.-P. Provost. This shows how both the Galilei and Lorentz transformations may be derived from (...) the relativity principle on the basis of certain elementary assumptions regarding time. I then reflect on the implications of this derivation for understanding proper time and the clock hypothesis. (shrink)

In General Relativity (GR), it has been claimed that inertia receives a dynamical explanation. This is in contrast to the situation in other theories, such as Special Relativity, because the geodesic principle of GR can be derived from Einstein’s field equations. The claim can be challenged in different ways, all of which question whether the status of inertia in GR is physically different from its status in previous spacetime theories. In this paper I state the original argument for (...) the claim precisely, discuss the different objections to it and then propose a formulation that avoids the problems the original claim encounters. My conclusion is that one can say meaningfully that inertia is dynamically explained in GR. There are two senses in which the derivation of geodetic motion can be said to provide a (more) dynamical explanation of inertia in GR: it holds for any material test body that is a source of the gravitational field; and it is derivable without assuming inertial structures that are fixed independently of matter. (shrink)

abstract Allen Buchanan argues that conventional applied ethics is impoverished and would be enriched by the addition of social moral epistemology. The aim here is to clarify this argument and to raise questions about whether such an addition is necessary about how such enrichment would work in practice. Two broad problems are identified. First, there are various kinds and sources of epistemic inertia, which act as an obstacle to epistemic change. Religion is one striking example and seems to pose (...) a deep problem for Buchanan's liberal social moral epistemology. Philosophy also exhibits a distinctive kind of epistemic inertia (metaphilosophical beliefs about the impropriety of applying philosophy are hard to shift), but also suffers from epistemic isolationism: (its arguments and conclusions are isolated from practical influence). It is concluded that not only will a liberal social moral epistemology have to overcome a pernicious epistemic inertia with regard to religious belief, but also a different kind of epistemic inertia closer to home. (shrink)

abstract Allen Buchanan argues that conventional applied ethics is impoverished and would be enriched by the addition of social moral epistemology. The aim here is to clarify this argument and to raise questions about whether such an addition is necessary about how such enrichment would work in practice. Two broad problems are identified. First, there are various kinds and sources of epistemic inertia, which act as an obstacle to epistemic change. Religion is one striking example and seems to pose (...) a deep problem for Buchanan's liberal social moral epistemology. Philosophy also exhibits a distinctive kind of epistemic inertia (metaphilosophical beliefs about the impropriety of applying philosophy are hard to shift), but also suffers from epistemic isolationism: (its arguments and conclusions are isolated from practical influence). It is concluded that not only will a liberal social moral epistemology have to overcome a pernicious epistemic inertia with regard to religious belief, but also a different kind of epistemic inertia closer to home. (shrink)

Cellular, or mobile phones are great: they allow people to communicate over long distances whenever and wherever they are, and instantaneously at that when the one called is wearing one too. Having said that, though, it must immediately be added that they, also, have a complex disadvantage, and it is one we are hard pushed to understand. In fact, due to its complexity people simply tend to neglect it, even though everyone in his right mind has had experience with it. (...) Now Walter Benjamin defined aura as “a distance however close it may be”.1) This has standardly been interpreted as a characterisation of an experience of presence, also by Benjamin. This aura supposedly suffered from the rise of photography. Aura can, also, be understood as inertia, the absence of something present. And whether aura is gone or widespread I gladly leave to more speculative-minded thinkers. I submit that we experience a person’s “aura”—her distance however close she may be—when perception tells us the person is present yet our mind realises that she isn’t. I am referring here to the observation had of another person engaged in a cell phone conversation. The inertia of the cell phone caller consists in her incapacity to address those who observe her. I think there is an immoral streak to her selfappointed moral autonomy. In a previous edition of this Dutch-Russian exchange on inertia I argued that our trafficking with facial expressions forms the model with which we’d best understand the workings of art—facial expression is the anthropological foundation of art. My discussion, today, of the cell phone conversation is meant to add to that previous suggestion. (shrink)

Over the past several years Haisch, Rueda, and others have made the claim that the origin of inertial reaction forces can be explained as the interaction of electrically charged elementary particles with the vacuum electromagnetic zero-point field expected on the basis of quantum field theory. After pointing out that this claim, in light of the fact that the inertial masses of the hadrons reside in the electrically chargeless, photon-like gluons that bind their constituent quarks, is untenable, the question of the (...) role of quantum zero-point fields generally in the origin of inertia is explored. It is shown that, although non-gravitational zero-point fields might be the cause of the gravitational properties of normal matter, the action of non-gravitational zero-point fields cannot be the cause of inertial reaction forces. The gravitational origin of inertial reaction forces is then briefly revisited. Recent claims critical of the gravitational origin of inertial reaction forces by Haisch and his collaborators are then shown to be without merit. (shrink)

Animal health is a key factor affecting the economic efficiency of the dairy industry. Improvements in animal health are also of relevance to society more broadly, given important implications for animal welfare, food safety and quality. Although the economic gains of best practice with regard to animal health have been well documented, many farmers are not adopting optimal herd management techniques. This paper utilises nationally representative farm-level data from Ireland for 2013 to identify drivers and barriers to the adoption of (...) best practice with regard to on-farm mastitis management. Exploratory factor analysis is used to derive measures of farmers’ attitudes towards animal health and mastitis and econometric techniques are employed to empirically assess the influence of these on the uptake of beneficial herd health management practices. A number of focus groups were also undertaken to complement the analysis. This paper concludes that farmers’ attitudes towards animal health are not a key driver in the uptake of best practice, although perceived disease risk is of relevance. A number of interesting issues arise in identifying barriers to the uptake of best practice, these include the possibility of routine inertia, i.e., farmers do not deviate from the routine developed around mastitis prevention until there is an indication of infection, as well as constraints around the availability of labour and time. Farmer behaviour with respect to mastitis management can thus be considered as reactionary as opposed to precautionary. This research highlights the valuable role of the extension agent but concludes that engagement around knowledge transfer and technology adoption is particularly complex. (shrink)

In Kant's Metaphysical Foundations of Natural Science are found a dynamist reduction of matter and an account of the communication of motion by impact. One would expect to find an analysis of the causal mechanism involved in the communication of motion between bodies given in terms of the fundamental dynamical nature of bodies. However, Kant's analysis, as given in the discussion of his third law of mechanics (an action-reaction law) is purely kinematical, invoking no causal mechanisms at all, let alone (...) dynamist mechanisms, in the explanation. It is argued that the reason for the non-incorporation of Kant's theory of matter in the account of impact is his overriding desire to provide a mathematical framework to explain the communication of motion, a provision which Kant felt to be impossible in the context of a metaphysical dynamism. (shrink)

The determination of inertia by matter is looked at in general relativity, where inertia can be represented by affine or projective structure. The matter tensor T seems to underdetermine affine structure by ten degrees of freedom, eight of which can be eliminated by gauge choices, leaving two. Their physical meaning---which is bound up with that of gravitational waves and the pseudotensor t, and with the conservation of energy-momentum---is considered, along with the dependence of reality on invariance and of (...) causal explanation on conservation. (shrink)

The conceptual excitement of science often seems geared only to work in contemporary physics. Thus, philosophers regularly discuss current cosmology, relativity, or the foundations of microphysics. In these areas one's philosophy is stretched and strained far beyond what our ancestors might have anticipated. Historians of science have also focused attention on past events by remarking their analogies and similarities with perplexities in physics today. But there are statements, hypotheses and theories of the past which are rewarding in themselves, without having (...) to be referred to the agonies which now confound quantum theory and cosmology. Specifically, the First Law of Motion--the "Law of Inertia"--this has everything a logician of science could look for. Understanding the complexities and perplexities of this fundamental mechanical statement is in itself to gain insight into what theoretical physics in general really is. With this in view a study of the law is undertaken. (shrink)

W. de Sitter, „On the relativity of inertia. Remarks concerning Einstein’s latest hypothesis”, Proceedings of the Section of Sciences. Koninklijke Akademie van Wetenschappen te Amsterdam, Vol. XIX, No. 9 i 10, Johannes Müller, Amsterdam, September 1917, pp. 1217–1225. Translated to Polish by Robert Janusz.

This paper argues that inertia is an inherent principle and that inertia and Newton’s First Law are in this way natural in the Aristotelian sense. Indeed, many difficulties concerning inertia and the First Law of Motion may be resolved by understanding them through an Aristotelian conception of nature. The paper proceeds by examining the characteristic activities of inertia, the Aristotelian idea of nature, various accounts of inertia as force and as inert, and the manner in (...) which an Aristotelian conception of nature improves on these accounts. It concludes that the unsuccessful attempts by physicists to find an extrinsic origin of inertia, though they may eventually lead to new discoveries, support the view that inertia is an inherent principle of nature. Newton himself understood the principle of inertia through an eclectic but largely nonAristotelian conception of nature and matter and by the problematic notion of a vis inertiae. However, Newton’s general philosophy of nature should be distinguished from the more specific content of the First Law and of inertia itself. A general Aristotelian conception of nature can resolve many of Newton’s difficulties. Thus, inertia and the First Law of Motion are reasonably regarded as natural in the general Aristotelian sense. (shrink)

Recently a great deal of attention has been paid to conflicts of interest in medical research, and the Institute of Medicine has called for more research into this important area. One research question that has not received sufficient attention concerns the mechanisms of action by which conflicts of interest can result in biased and/or flawed research. What discretion do conflicted researchers have to sway the results one way or the other? We address this issue from the perspective of selective (...) class='Hi'>inertia, or an unnatural selection of research methods based on which are most likely to establish the preferred conclusions, rather than on which are most valid. In many cases it is abundantly clear that a method that is not being used in practice is superior to the one that is being used in practice, at least from the perspective of validity, and that it is only inertia, as opposed to any serious suggestion that the incumbent method is superior, that keeps the inferior procedure in use, to the exclusion of the superior one. By focusing on these flawed research methods we can go beyond statements of potential harm from real conflicts of interest, and can more directly assess actual harm. (shrink)

Many modern commentators on inertial phenomena hold (or just assume) that there is no "problem of inertia", on the grounds that either (a) no explanation is needed for such phenomena or (b) the explanation is already at hand. My purpose here is to comment on both views, defending the thesis that the problem is real and still unsolved.