Abstract

Granted that there has to be something, the question arises why reality has taken the form it has. The possibilities divide into the physical, the supernatural, the mental, and the abstract. The supernatural has already been ruled out, and it is argued that, while neither the mental nor the abstract is in any way fundamental, if anything at all exists, there must be a physical reality. Some light is thrown on the contentious topic of necessary existence by a consideration of mathematical necessity.