Kant has explained his view on modality and modal concepts in general in different sections of the Critique of Pure Reason such as the "Metaphysical Deduction", "Schematism", and the "Postulates". However, he discusses the issue of existence in particular mainly under the topic of "The Impossibility of an Ontological Proof of the Existence of God." The proof—known as the "ontological argument"—was first presented by St. Anselm and later revised by Descartes, Leibniz, and contemporary philosophers like Norman Malcolm and Alvin Plantinga. (...) Kant's view on existence, however, seems to lead to some problems. In the present essay two of these... (shrink)

The idea of “creatio ex nihilo” entered the arena of natural science with the advent of modern cosmology in the mid-twentieth century. This idea, that is, the creation of the universe out of nothing, seems to be a consequence of the widely accepted Big Bang Theory which implies the temporal finitude of the world. In order to avoid the theological and metaphysical implications of such an idea, some scenarios and scientific models have been proposed. According to one of the scenarios, (...) the creation ex nihilo of the world is a causal physical phenomenon, and, hence, can be explained scientifically by appealing to the laws of nature. In this essay, I aim to discuss and criticize this idea. To fulfill this aim, in the introduction some achievements of modern cosmology will be very briefly introduced. In the next three sections, the notions of existence and nothingness, creation,scientific explanation, and singularity will be explored. It will be shown that what philosophers mean by these notions isradically different fromthe naïve ideas of some scientists. Hence, applying these notions to physical models of the origin of the universe is completely misleading. This work concludes that no scientific explanation appealing to the laws of nature can possibly explainthe creation of the universe out of nothing. (shrink)

The ideas of creatio ex nihilo of the universe and creatio continua of new matter out of nothing entered the arena of natural science with the advent of the Big Bang and the steady-state theories in the mid-twentieth century. Adolf Grünbaum has tried to interpret the steady-state theory in such a way, to show that the continuous formation of new matter out of nothing in this theory can be explained purely physically. In this paper, however, it will be shown that (...) Grünbaum's interpretation encounters at least three problems: not distinguishing between material and efficient causes, inconsistency, and misconceiving the law of density conservation. (shrink)