Abstract
The problem of why something exists rather than nothing is doubtless as old as human philosophising. Of comparable antiquity is the observation that one cannot hope to explain why something exists rather than nothing by appealing to the existence of something else, on pain of vicious circularity.In this paper, I distinguish between the question of why anything exists, and the question of why particulars exist. These two questions are equivalent only if the only things that exist are particulars. Certainly many have held that universals as well as particulars exist. I take it here that there is a prima facie distinction between universals and particulars. It follows that the former question is prima facie more general than the latter. I will initially concentrate on the latter, taking a hint from some recent theorising about the physics of the Big Bang.