Cosmology Without God?

Is God a superfluous hypothesis for modern cosmology? According to the normal understanding of modern science, the answer should be affirmative because modern science is supposed to be free of metaphysical and theological presuppositions. However, despite its self-proclaimed neutrality regarding metaphysics and theology, modern science is full of metaphysical and theological presuppositions. These can be summarized as a mechanistic understanding of nature, a reduction of God to an external agent