Online research in philosophy

John Taylor complains that the "Kalam" cosmological argument gives the appearance of being a swift and simple demonstration of the existence of a Creator of the universe, whereas in fact a convincing argument involving the premiss that the universe began to exist is very difficult to achieve. But Taylor's proffered defeaters of the premisses of the philosophical arguments for the beginning of the universe are themselves typically undercut due to Taylor's inadvertence to alternatives open to the defender of the "Kalam" arguments. With respect to empirical confirmation of the universe's beginning Taylor is forced into an anti-realist position on the Big Bang theory, but without sufficient warrant for singling out the theory as non-realistic. Therefore, despite the virtue of simplicity of form, the "Kalam" cosmological argument has not been defeated by Taylor's all too swift refutation.

There is an intriguing recent effort to develop a valid cosmological argument on the basis of quite minimal assumptions.1 Indeed, the basis of the new cosmological argument is so slight that it is likely to make even a conscientious theist suspicious – to say nothing of our vigilant atheists. In Section 1 we present the background assumptions and central premises of the new cosmological argument. We are sympathetic to the conclusion that there necessarily exists an intelligent and powerful creator of the actual universe, but we show in Section 2 that the new cosmological argument cannot establish this claim. Specifically, we show by reductio ad absurdum that the new argument is unsound, and that every plausibly modified version of the argument is also unsound.2 We close our discussion with a diagnosis of what went wrong in the new cosmological argument. Our conclusion is that this intriguing new argument promises considerably more than it can show.

There is an intriguing recent effort to develop a valid cosmological argument on the basis of quite minimal assumptions.1 Indeed, the basis of the new cosmological argument is so slight that it is likely to make even a conscientious theist suspicious – to say nothing of our vigilant atheists. In Section 1 we present the background assumptions and central premises of the new cosmological argument. We are sympathetic to the conclusion that there necessarily exists an intelligent and powerful creator of the actual universe, but we show in Section 2 that the new cosmological argument cannot establish this claim. Specifically, we show by reductio ad absurdum that the new argument is unsound, and that every plausibly modified version of the argument is also unsound.2 We close our discussion with a diagnosis of what went wrong in the new cosmological argument. Our conclusion is that this intriguing new argument promises considerably more than it can show.

In a recent article in this journal, Richard Gale and Alexander Pruss offer a new cosmological proof for the existence of God relying only on the Weak Principle of Sufficient Reason, W-PSR. We argue that their proof relies on applications of W-PSR that cannot be justified, and that our modal intuitions simply do not support W-PSR in the way Gale and Pruss take them to.

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.

Cosmological arguments have received more attention in the past ten years. One reason for this is that versions with restricted or even no reliance on the principle of sufficient reason (PSR) have been formulated. By not relying on PSR – what many consider to be a necessary falsehood – philosophers have been able to escape many of the old criticisms of cosmological arguments. In this essay I survey two recent attempts at presenting a sound version of a cosmological argument. I spend more time on Robert Koons' since his has not yet received the kind of quality attention that the other has.

I hold that the considerations adduced in kalam cosmological arguments do not embody reasons for reflective atheists and agnostics to embrace the conclusion of those arguments, viz. that the universe had a cause of its existence. I do not claim to be able to show that reflective theists could not reasonably believe that those arguments are sound; indeed, I am prepared to concede that it is epistemically possible that the arguments procede validly from true premises. However, I am prepared to make the same concession about the following argument: Either 2+2=5 or God exists; 2+2?5; therefore God exists . But nobody could think that this argument deserves to be called a proof of its conclusion (even if it is sound). Of course, this latter argument is obviously circular: (almost) no one who was not antecedently persuaded of the truth of the conclusion would (have reason to) believe the first premise. But this fact does not entail that admittedly non circular arguments, such as the kalam cosmological arguments, cannot fail to be equally dialectically ineffective. And, indeed, that is the view which I wish to defend: there is not the slightest reason to think that kalam cosmological arguments should be dialectically effective against reasonable and reflective opponents.

We will give a new cosmological argument for the existence of a being who, although not proved to be the absolutely perfect God of the great Medieval theists, also is capable of playing the role in the lives of working theists of a being that is a suitable object of worship, adoration, love, respect, and obedience. Unlike the absolutely perfect God, the God whose necessary existence is established by our argument will not be shown to essentially have the divine perfections of omnipotence, omniscience, omnibenevolence, and sovereignty. Furthermore, it is not even shown that he is contingently omnipotent and omniscient, just powerful and intelligent enough to be the supernatural designer-creator of the exceedingly complex and wondrous cosmos that in fact..

Graham Oppy has argued that possible explanation entails explanation in order to object to Richard Gale and Alexander Pruss’s new cosmological argument that it does not improve upon familiar cosmological arguments. Gale and Pruss as well as Pruss individually have granted Oppy’s inference from possible explanation to explanation and argue that this inference provides a reason to believe that the strong principle of sufficient reason is true. In this article, I shall undermine Oppy’s objection to the new cosmological argument by arguing that it is logically possible that some truths are merely possibly explained.

We present a valid deductive cosmological argument for the necessary existence of a powerful and intelligent creator of the actual universe. Whereas traditional cosmological arguments had to employ a strong version of the principle of sufficient reason that held that every fact actually has an explanation, our argument can make do with the weak version of Duns Scotus according to which every fact possibly has an explanation. As a result, our argument is less vulnerable to the charge of begging the question than are these traditional cosmological arguments.