Abstract
I will discuss the relationship between physicalism and classical Big Bang Cosmology, and argue that the physicalist must hold to the notion that the Universe came into being out of literal nonbeing with no cause, if this person is to hold to classical Big Bang Cosmology. If my argument is sound, then it entails that a physicalist must do this in order to be consistent with Big Bang cosmology, or either give up physicalism. Theism, on the other hand, does not require that it is possible that being can arise from nonbeing. One may then argue that theism is to be prefered over physicalism, since it is arguably simpler in its assumptions on this question. This may therefore be of interest to Natural (a)Theology.