Challenging, with several powerful arguments, some of our deepest beliefs about rationality, morality, and personal identity, Parfit claims that we have a false view about our own nature. It is often rational to act against our own best interersts, he argues, and most of us have moral views that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions (...) that most of us will find very disturbing. (shrink)

1st ser. The four historical conceptions of being.--2d ser. Nature, man, and the moral order.

As this book reveals, his vision was much more complex and interesting. He hoped that machines would release people from relentless and repetitive drudgery in order to achieve more creative pursuits.

It is not easy to be a materialist and yet believe that there is a way for human beings to survive death. Peter van Inwagen identifies the central obstacle the materialist faces: Namely, the need to posit appropriate “immanent-causal” connections between my body as it is at death and some living body elsewhere or elsewhen. I offer a proposal, consistent with van Inwagen’s own materialist metaphysics, for making materialism compatible with the possibility of survival.

In contrast to the theories of relativity, quantum mechanics is not yet based on a generally accepted conceptual foundation. It is proposed here that the missing principle may be identified through the observation that all knowledge in physics has to be expressed in propositions and that therefore the most elementary system represents the truth value of one proposition, i.e., it carries just one bit of information. Therefore an elementary system can only give a definite result in one specific measurement. The (...) irreducible randomness in other measurements is then a necessary consequence. For composite systems entanglement results if all possible information is exhausted in specifying joint properties of the constituents. (shrink)

Julien Offray de La Mettrie (1709-51), author of Machine Man (1747), was the most uncompromising of the materialists of the eighteenth century, and the provocative title of his work ensured it a succès de scandale in his own time. It was however a serious, if polemical, attempt to provide an explanation of the workings of the human body and mind in purely material terms and to show that thought was the product of the workings of the brain alone. This fully (...) annotated edition presents a new English translation of the text together with the most important of La Mettrie's other philosophical works, translated into English for the first time, and Ann Thomson's introduction examines his aims and the scandalous moral consequences which he drew from his materialism. (shrink)

A powerful argument against the resurrection of the body is based on the premise that all resurrection theories violate natural laws. We counter this argument by developing a fully naturalistic resurrection theory. We refer to it as the revision theory of resurrection (the RTR). Since Hick’s replica theory is already highly naturalistic, we use Hick’s theory as the basis for the RTR. According to Hick, resurrection is the recreation of an earthly body in another universe. The recreation is a resurrection (...) counterpart. We show that the New Testament supports the idea of resurrection counterparts. The RTR asserts that you are a node in a branching tree of increasingly perfect resurrection counterparts. These ever better counterparts live in increasingly perfect resurrection universes. We give both theological arguments and an empirical argument for the RTR. (shrink)

Precis of my book by this title, for a symposium.

Traditionally, when persons were viewed as a psycho-physical unity, life after death was deemed quite impossible, particularly in the face of universal human mortality and inevitable bodily corruption. However, some modern anthropologically monistic philosophers, including most notably John Hick, have argued that life after death is possible Two objections have been raised against the re-creationist thesis that the individual human person can be re-created after death. The objection that the re-created person would not be the same person as the deceased (...) because the person would lack spatial-temporal continuity I answer by showing that spatial-temporal continuity is not a necessary condition for all cases of personal identity. To the objection that the decision to call the re-created individual the same as the deceased either uses criteria like memory which themselves presuppose bodily continuity or is merely an unjustified convention, I show that these criteria do not presuppose continuity, and though an identity decision is called for, it is not an unjustifiable or arbitrary decision. (shrink)

Two objections have been raised against the re-creationist thesis that the individual human person can be re-created after death. The objection that the re-created person would not be the same person as the deceased because he would lack spatial-temporal continuity with that person I answer by showing that spatial-temporal continuity with that person is not a necessary condition for all cases of personal identity. To the objection that the decision to call the re-created individual the same as the deceased either (...) uses criteria like memory which themselves presuppose bodily continuity or is merely an unjustified convention, I show that these criteria do not presuppose continuity, and through a decision is called for, it is not an unjustifiable or arbitrary decision. (shrink)

Why is the future so different from the past? Why does the past affect the future and not the other way round? The universe began with the Big Bang - will it end with a `Big Crunch'? Now in paperback, this book presents an innovative and controversial view of time and contemporary physics. Price urges physicists, philosophers, and anyone who has ever pondered the paradoxes of time to look at the world from a fresh perspective, and throws fascinating new light (...) on some of the great mysteries of the universe. (shrink)

Paper presented in East-West Symposium on Science, Philosophy and Religion, Society for Asian and Comparative Philosophy Meeting with Australasian Association of Philosophy Annual Conference, The University of Melbourne, Melbourne, July 1999.

To many it seems obvious that any reduction of the nature of man to purely physical components involves an indirect attack on the doctrine of human immortality. To so reduce human nature, it may be argued, is to eliminate the soul and it is this essential component of man, rather than his body, which is the foundation of his immortality. This seems to me an altogether mistaken notion. My purpose in this paper, therefore, is to clarify the relation of physicalism (...) and immortality and thereby to reveal the error in this alleged incompatibility. (shrink)

The cosmos exists just because of the ethical need for it We, and all the intricate structures of our universe, exist as thoughts in a divine mind that knows everything worth knowing. There could also be infinitely many other universes in this mind....It may be hard to believe that the universe is as Leslie says it is--but it is also hard to resist his compelling ideas and arguments.

How do things persist? Are material objects spread out through time just as they are spread out through space? Or is temporal persistence quite different from spatial extension? This key question lies at the heart of any metaphysical exploration of the material world, and it plays a crucial part in debates about personal identity and survival. This book explores and compares three theories of persistence — endurance, perdurance, and stage theories — investigating the ways in which they attempt to account (...) for the world around us. Having provided valuable clarification of its two main rivals, the book concludes by advocating stage theory. Such a basic issue about the nature of the physical world naturally has close ties with other central philosophical problems. This book includes discussions of change and parthood, of how we refer to material objects at different times, of the doctrine of Humean supervenience, and of the modal features of material things. In particular, it contains new accounts of the nature of worldly vagueness, and of what binds material things together over time, distinguishing the career of a natural object from an arbitrary sequence of events. Each chapter concludes with a reflection about the impact of these metaphysical debates upon questions about our personal identity and survival. (shrink)

Katherine Hawley explores and compares three theories of persistence -- endurance, perdurance, and stage theories - investigating the ways in which they attempt to account for the world around us. Having provided valuable clarification of its two main rivals, she concludes by advocating stage theory.

There are two main theories about the persistence of objects through time: endurantism and perdurantism. Endurantists hold that objects are three-dimensional, have only spatial parts, and wholly exist at each moment of their existence. Perdurantists hold that objects are four-dimensional, have temporal parts, and only partly exist at each moment of their existence. In this paper we argue that endurantism is poorly suited to describe the persistence of objects in a world governed by Special Relativity, and can accommodate a relativistic (...) world only at a high price, one that we argue is not worth paying. Perdurantism, on the other hand, fits beautifully with our current scientific understanding of the world. Furthermore, we make this argument from implications of the Lorentz transformations, without appeals to geometrical interpretations, dimensional analogies, or auxillary premises like temporal eternalism. (shrink)

Resurrection has been used as the conceptual basis for attempted solutions to two problems that occur in the context of western theism, the problem of cognitive meaning and the problem of theodicy. Because John Hick has proposed resurrection as a solution to both problems so extensively, and because Antony Flew and Terence Penelhum have examined those solutions so strenuously, I will use their writings to lay out the problem. My aim is to improve upon Hick by overcoming a weakness in (...) his defence of resurrection. My narrower focus will be on resurrection and the ‘replica objection’, rather than the wider use of resurrection to solve problems of evil or the meaningfulness of theistic discourse, but some brief remarks on the wider problems will be necessary to set the stage. (shrink)

Are there really beliefs? Or are we learning (from neuroscience and psychology, presumably) that, strictly speaking, beliefs are figments of our imagination, items in a superceded ontology? Philosophers generally regard such ontological questions as admitting just two possible answers: either beliefs exist or they don't. There is no such state as quasi-existence; there are no stable doctrines of semi-realism. Beliefs must either be vindicated along with the viruses or banished along with the banshees. A bracing conviction prevails, then, to the (...) effect that when it comes to beliefs (and other mental items) one must be either a realist or an eliminative materialist. (shrink)

This paper argues that at least one of the following propositions is true: (1) the human species is very likely to go extinct before reaching a “posthuman” stage; (2) any posthuman civilization is extremely unlikely to run a significant number of simulations of their evolutionary history (or variations thereof); (3) we are almost certainly living in a computer simulation. It follows that the belief that there is a significant chance that we will one day become posthumans who run ancestor-simulations is (...) false, unless we are currently living in a simulation. A number of other consequences of this result are also discussed. (shrink)

This paper argues that at least one of the following propositions is true: the human species is very likely to go extinct before reaching a "posthuman" stage; any posthuman civilization is extremely unlikely to run a significant number of simulations of their evolutionary history ; we are almost certainly living in a computer simulation. It follows that the belief that there is a significant chance that we will one day become posthumans who run ancestor-simulations is false, unless we are currently (...) living in a simulation. A number of other consequences of this result are also discussed. (shrink)

I argue that at least one of the following propositions is true: the human species is very likely to become extinct before reaching a ’posthuman’ stage; any posthuman civilization is extremely unlikely to run a significant number of simulations of its evolutionary history ; we are almost certainly living in a computer simulation. It follows that the belief that there is a significant chance that we shall one day become posthumans who run ancestor-simulations is false, unless we are currently living (...) in a simulation. I discuss some consequences of this result. (shrink)

The prospect, in terms of subjective expectations, of immortality under the no-collapse interpretation of quantum mechanics is certain, as pointed out by several authors, both physicists and, more recently, philosophers. The argument, known as quantum suicide, or quantum immortality, has received some critical discussion, but there hasn't been any questioning of David Lewis's point that there is a terrifying corollary to the argument, namely, that we should expect to live forever in a crippled, more and more damaged state, that barely (...) sustains life. This is the prospect of eternal quantum torment. Based on some empirical facts, I argue for a conclusion that is much more reassuring than Lewis's terrible scenario.1. (shrink)

Four- Dimensionalism defends the thesis that the material world is composed of temporal as well as spatial parts. This defense includes a novel account of persistence over time, new arguments in favour of the four-dimensional ontology, and responses to the challenges four- dimensionalism faces." "Theodore Sider pays particular attention to the philosophy of time, including a strong series of arguments against presentism, the thesis that only the present is real. Arguments offered in favour of four- dimensionalism include novel arguments based (...) on time travel, the debate between spacetime substantivalists and relationalists, and vagueness. Also included is a comprehensive discussion of the paradoxes of coinciding material objects, and a novel resolution of those paradoxes based on temporal counterpart theory. In conclusion Sider replies to prominent objections to four- dimensionalism, including discussion of the problem of the rotating homogenous disk. (shrink)

Our digital technologies have inspired new ways of thinking about old religious topics. Digitalists include computer scientists, transhumanists, singularitarians, and futurists. Digitalists have worked out novel and entirely naturalistic ways of thinking about bodies, minds, souls, universes, gods, and life after death. Your Digital Afterlives starts with three digitalist theories of life after death. It examines personality capture, body uploading, and promotion to higher levels of simulation. It then examines the idea that reality itself is ultimately a system of self-surpassing (...) computations. On that view, you will have infinitely many digital lives across infinitely many digital worlds. Your Digital Afterlives looks at superhuman bodies and infinite bodies. Thinking of nature in purely computational terms has the potential to radically and positively change our understanding of life after death. (shrink)

In this cross-cultural, interdisciplinary study, John Hick draws upon major world religions, as well as biology, psychology, parapsychology, anthropology, and ...

Please note, this is the original Greek text.

Thomas Hobbes took a new look at the ways in which society should function, and he ended up formulating the concept of political science. His crowning achievement, Leviathan, remains among the greatest works in the history of ideas. Written during a moment in English history when the political and social structures as well as methods of science were in flux and open to interpretation, Leviathan played an essential role in the development of the modern world. This edition of Hobbes' landmark (...) work is based on the original text. It incorporates the author's own corrections and retains the period spelling and punctuation, offering both flavorful authenticity and the utmost clarity of expression. (shrink)

What is perhaps the biggeist metaphysical question of them all was put on the agenda of philosophy by G. W. Leibniz: “Why is there anything at all?” This question is not only difficult to answer but poses difficulties in its very conception. After all, it is—or should be—-clear that such questions as “Why is there anything at all?” and “Why are things in general as they actually are?” and “Why are the laws of nature as they are?” cannot be answered (...) within the standard causal framework. For causal explanations need inputs: they are essentially transformational rather than formational pure and simple. And so, if we persist in posing the sorts of global questions at issue, we cannot hope to resolve them in orthodox causal terms. For when we ask about everything there are no issue-external materials at our disposal for giving a noncircular explanation. Does this mean that such questions are improper and should not be raised at all—that even to inquire into the existence of the entire universe is somehow illegitimate? Not necessarily. For it could be replied that the question does have a perfectly good answer, but one that is not given in the orthodox causal terms that apply to other issues of smaller scale. (shrink)

In this section, we will start with an influential attempt to define `intelligence', and then we will move to a consideration of how human intelligence is to be investigated on the machine model. The last part of the section will discuss the relation between the mental and the biological.