The Hartle-Hawking derivation of the unconditional probability of the existence of a universe of our sort is inconsistent with classical theism. The unconditional probability is very high, near to 1. For purposes of simplification, we are saying the probability is 99 percent; there is a 99 percent probability that a universe of our sort—I will call it a Hartle-Hawking universe—exists uncaused.The universe exists uncaused since the probability amplitude is determined by a summation or path integral over all possible histories of a finite universe. That is, the probability that a Hartle-Hawking universe exists follows directly from the natural-mathematical properties of possible finite universes; there is no need for a cause, probabilistic or otherwise, for there to be a 99 percent probability that a Hartle-Hawking universe will exist.This is not consistent with classical theism. According to classical theism, if a universe is to have any probability of existing, this probability is dependent on God's dispositions, beliefs, or choices. But the Hartle-Hawking probability is not dependent on any supernatural states or acts; Hartle and Hawking do not sum over anything supernatural in their path integral derivation of the probability amplitude.Furthermore, according to classical theism, the probability that a universe exist without divine causation is 0, and the probability that if a universe exists, it is divinely caused, is 1. Thus, the probabilities that are implied by classical theism are inconsistent with the probabilities implied by the Hartle-Hawking wave function of the universe.
Curiously enough, it seems that at times the spiritual side prevails, and then the materialistic side—in wave-like motions following each other. ...At one time the full flood of materialistic ideas prevails, and everything in this life—prosperity, the education which procures more pleasures, more food—will become glorious at first and then that will degrade and degenerate. Along with the prosperity will rise to white heat all the inborn jealousies and hatreds of the human race. Competition and merciless cruelty will be the watchword of the day. To quote a very commonplace and not very elegant English proverb, "Everyone for himself, and the devil take the hindmost", becomes the motto of the day. Then people think that the whole scheme of life is a failure. And the world would be destroyed had not spirituality come to the rescue and lent a helping hand to the sinking world. Then the world gets new hope and finds a new basis for a new building, and another wave of spirituality comes, which in time again declines. As a rule, spirituality brings a class of men who lay exclusive claim to the special powers of the world. The immediate effect of this is a reaction towards materialism, which opens the door to scores of exclusive claims, until the time comes when not only all the spiritual powers of the race, but all its material powers and privileges are centered in the hands of a very few; and these few, standing on the necks of the masses of the people, want to rule them. Then society has to help itself, and materialism comes to the rescue.
[Letter to his wife, Natalia Sedova]In addition to the happiness of being a fighter for the cause of socialism, fate gave me the happiness of being her husband. During the almost forty years of our life together she remained an inexhaustible source of love, magnanimity, and tenderness. She underwent great sufferings, especially in the last period of our lives. But I find some comfort in the fact that she also knew days of happiness.For forty-three years of my conscious life I have remained a revolutionist; for forty-two of them I have fought under the banner of Marxism. If I had to begin all over again I would of course try to avoid this or that mistake, but the main course of my life would remain unchanged. I shall die a proletarian revolutionist, a Marxist, a dialectical materialist, and, consequently, an irreconcilable atheist. My faith in the communist future of mankind is not less ardent, indeed it is firmer today, than it was in the days of my youth.Natasha has just come up to the window from the courtyard and opened it wider so that the air may enter more freely into my room. I can see the bright green strip of grass beneath the wall, and the clear blue sky above the wall, and sunlight everywhere. Life is beautiful. Let the future generations cleanse it of all evil, oppression and violence, and enjoy it to the full.