Quentin Smith

Contemporary science presents us with the remarkable theory that the universe began to exist about fifteen billion years ago with a cataclysmic explosion called "the Big Bang." The question of whether Big Bang cosmology supports theism or atheism has long been a matter of discussion among the general public and in popular science books, but has received scant attention from philosophers. This book sets out to fill this gap by means of a sustained debate between two philosophers, William Lane Craig and Quentin Smith, who defend opposing positions. Craig argues that the Big Bang that began the universe was created by God, while Smith argues that the Big Bang has no cause. Alternating chapters by the two philosophers criticize and attempt to refute preceding arguments. Their arguments are based on Einstein's theory of relativity and include a discussion of the new quantum cosmology recently developed by Stephen Hawking and popularized in A Brief History of Time.

Atheists have tacitly conceded the field to theists in the area of philosophical cosmology, specifically, in the enterprise of explaining why the universe exists. The theistic hypothesis is that the reason the universe exists lies in God’s creative choice, but atheists have not proposed any reason why the universe exists. I argue that quantum cosmology proposes such an atheistic reason, namely, that the universe exists because it has an unconditional probability of existing based on a functional law of nature. This law of nature (“the wave function of the universe”) is inconsistent with theism and implies that God does not exist. I criticize the claims of Alston, Craig, Deltete and Guy, Oppy and Plantinga that theism is consistent with quantum cosmology.

Swinburne's Is There A God? presents a brief, updated version of his book, The Existence of God, in which Swinburne argued that criteria used in scientific reasoning could be used to argue that God probably exists. This new book is designed for a wider audience than professional philosophers. Nonetheless, there is much that is new and of interest to philosophers in Is There a God? For example, there is a discussion of Stephen Hawking's cosmology, some new ideas in the philosophy of mind, and a new way of formulating the argument that theism is a simpler explanation of the universe than is materialism

There is sufficient evidence at present to justify the belief that the universe began to exist without being caused to do so. This evidence includes the Hawking-Penrose singularity theorems that are based on Einstein's General Theory of Relativity, and the recently introduced Quantum Cosmological Models of the early universe. The singularity theorems lead to an explication of the beginning of the universe that involves the notion of a Big Bang singularity, and the Quantum Cosmological Models represent the beginning largely in terms of the notion of a vacuum fluctuation. Theories that represent the universe as infinitely old or as caused to begin are shown to be at odds with or at least unsupported by these and other current cosmological notions

In "A Cosmological Argument for a Self-Caused Universe ," one of us (Smith) argued that the universe explains its own existence because (i) its existence is entailed by (and so explained by) the existence of the infinitely many instantaneous universe states that compose it, and (ii) each of those states is caused by (and so explained by) infinitely many earlier universe states.[1] Moreover, (ii) is true even if the universe is finitely old because, given standard Big Bang cosmology (Friedmann cosmology), the universe does not exist at t0 (i.e., the Big Bang singularity is not real) and no matter how close some moment tn (at which the universe does exist) is to t0, there are infinitely many (indeed continuum-many) moments at which the universe exists that are even closer. Thus, even a finitely old universe has no beginning in the sense of a first moment, and hence its state at any moment is (sufficiently) caused by (all of) the universe states that precede it. Further, since this explanation of the existence of the universe is complete despite making no reference to God, and since God by definition is a part of any complete explanation of the universe, it follows that God does not exist.

The big bang cosmological theory is relevant to Christian theism and other theist perspectives since it represents the universe as beginning to exist ex nihilo about 15 billion years ago. This paper addresses the question of whether it is reasonable to believe that God created the big bang. Some theists answer in the affirmative, but it is argued in this paper that this belief is not reasonable. In the course of this argument, there is a discussion of the metaphysical necessity of natural laws, of whether the law of causality is true a priori, and of other pertinent issues.

If big bang cosmology is true, then the universe began to exist about 15 billion years ago with a 'big bang', an explosion of matter, energy and space from a singular point. This singularity is spatially and temporally pointlike; that is, it has zero spatial dimensions and exists for an instant (at t=0) before exploding with a 'big bang'. The big bang singularity is also lawless; Stephen Hawking writes: A singularity is a place where the classical concepts of space and time break down as do all the known laws of physics because they are all formulated on a classical space time background. ... [T]his breakdown is not merely a result of our ignorance of the correct theory but represents a fundamental limitation to our ability to predict the future [of the singularity], a limitation that is analogous but additional to the limitation imposed by the normal quantum mechanical uncertainty principle. [1] The lawlessness of the singularity entails that it 'would thus emit all [possible] configurations of particles with equal probability' [2]. Paul Davies describes this vividly: 'Anything can come out of a naked singularity -in the case of the big bang the universe came out.' [3].

I begin by defending condition (i) against five objections (section 2). Following this, I show that the theory that laws obtain contingently encounters three problems that are solved by the theory that laws are metaphysically necessary (section 3). In section 3, I criticize the regularity theory of natural laws and the universals theory of Armstrong, Dretske and Tooley, and also show how the metaphysical theory solves the “inference problem” that Van Fraassen (1989) posed for any theory of natural laws

I think that virtually all contemporary theists, agnostics and atheists believe this is logically possible. Indeed, the main philosophical tradition from Plato to the present has assumed that the sentence, "God is the originating cause of the universe", does not express a logical contradiction, even though many philosophers have argued that this sentence either is synthetic and meaningless (e.g., the logical positivists) or states a synthetic and a priori falsehood (e.g., Kant and Moore), or states a synthetic and a posteriori falsehood (e.g., contemporary defenders of the probabilistic argument from evil).

The standard view of philosophers is that the existence of particular events within our universe is capable of being explained in terms of initial conditions and natural laws, but that the existence of our universe itself is a 'brute given' that is incapable of naturalistic explanation. A supernatural explanation of the existence of our universe may be alleged to be possible ('God created our universe so that humans may exist and the existence of humans is an intrinsic good'), but an explanation that appeals only to factors, situations or regularities in nature is deemed to be in principle impossible. It is also a standard view of philosophers that the less fundamental natural laws of our universe are capable of being explained in terms of more fundamental laws of our universe, but that the most basic natural laws of our universe are incapable of being explained naturalistically. Perhaps they can be explained supernaturally, by asserting that God ordained them so that humans may eventually evolve, but no other explanation is supposed possible

I endeavor to explain husserl's theory of hyletic data, And to show that there is no phenomenological evidence for the existence of such data. I explain husserl's theory that hyletic data include the perceptual sensations that are immanent to consciousness, And that correspond to the objective sense properties that belong to the perceived object. The hyletic sensations do not appear, But are endowed with a meaning by the perceptual consciousness, And by means of this meaning-Endowment, The perceptual consciousness achieves an awareness of the objective sense properties. I argue that the hyletic sensations can never be intuited. According to husserl's definition, 1) these sensations are meaningless, And 2) it is possible to intuit only what has a meaning. Therefore the hyletic data cannot be intuited, And therefore there is no phenomenological (intuitive) evidence for their existence

Time, Change and Freedom is the first introduction to metaphysics that uses the idea of time as a unifying principle. Time is used to relate the many issues involved in the complex study of metaphysics. Sections of the book are written in dialogue form which allows the reader to question the theories while they read and have those queries answered in the text. In addition, the authors provide glossaries of key terms as well as recommendations for further reading at the conclusion of each chapter. Quentin Smith and L. Nathan Oaklander examine the tensions between determinism and freedom, temporality and historical change as well as an array of other issues fundamental to introductory metaphysics.

The New Theory of Reference (NTR) of Marcus, Kripke, Kaplan, Putnam and others is a theory in the philosophy of language and there has been much debate about whether it entails the metaphysical theory of essentialism. But there has been no discussion about whether the NTR entails another metaphysical theory, the absolutist theory of time and space. It is argued in this paper that the NTR carries this entailment; the theory of time is the main focus of the paper and it is argued that the NTR entails the absolutist theory that times are event-independent moments

Some philosophers hold that the tenseless theory of time entails the "temporal parts" theory of personal identity, that a person is a succession of distinct particulars. Some philosophers also believe that the tensed theory of time entails the "substance" or "continuant" theory of personal identity, that a person is a single particular that endures through time. I argue that these philosophers are mistaken. Both the tensed and tenseless theories of time are compatible with both theories of personal identity

Discussions of the intersection of general relativity and thephilosophy of religion rarely take place on the technical levelthat involves the details of the mathematical physics of generalrelativity. John Earman's discussion of theism and generalrelativity in his recent book on spacetime singularities is anexception to this tendency. By virtue of his technical expertise,Earman is able to introduce novel arguments into the debatebetween theists and atheists. In this paper, I state and examineEarman's arguments that it is rationally acceptable to believethat theism and general relativity form a mutually consistent oreven mutually supportive pair. I conclude that each of hisarguments is unsound.