Why is There Something Rather Than Nothing?

COSMOS - Forget science. Forget God. This is the ultimate question: What if Everything had Forever been Nothing? Not just emptiness, not just blankness, but not even the existence of emptiness, not even the meaning of blankness, and no Forever. If you don't get dizzy, you really don't get it. Featuring John Leslie, Peter van Inwagen, Bede Rundle, Quentin Smith, Richard Swinburne and Steven Weinberg.