Can One Worship a Hypothesis? Victor J. Stenger Beyond the Big Bang: Quantum Cosmologies and God, by Willem B. Drees (La Salle, Illinois: Open Court, 1990), 323 pp., paper, $18.95. Published in Free Inquiry 12, Summer 1992, p. 55. In 1951, Pope Pius XII declared that "Science has provided proof of the beginning of time. . . . Hence, creation took place in time. Therefore there is a Creator; therefore, God exists." Recent results from the Cosmic Background Explorer (COBE) satellite have provided further confirmation of the big-bang theory, which postulates that the current universe is the expanding remnant of an explosion that happened about 15 billion years ago. The media has taken this as confirming the biblical view of Creation and, by inference, the existence of a creator. They quote preachers and even some scientists as saying that something must have caused the big bang to happen to bring the universe into being; that something is God. Willem Drees is a physicist and a theologian, and smart enough not to draw that unjustified conclusion. He understands that the standard Big Bang theory does not take us back all the way to t=0, that perhaps t=0 cannot even be defined as a meaningful concept. He recognizes that science provides no evidence for the existence of God, and probably never will. Nothing in current cosmology demands that the universe was purposefully created. In fact, the most economical hypothesis, consistent with all astronomical observations and the established theoretical structure of modern physics and cosmology is that the origin of the universe was a quantum fluctuation, absent of any design or plan. In Beyond the Big Bang, Drees accepts that God is a hypothesis motivated more by human desires than scientific facts. Nevertheless, he believes that the hypothesis of God is worth making, and seeks to establish criteria by which ideas of God can be brought into consonance with science, in particular modern physics and cosmology. Drees goes beyond the big bang to examine in detail several recent trends in cosmological thought. The chaotic inflation of Andrei Linde, the timeless quantum cosmology of Stephen Hawking, and the time-asymmetric cosmology of Roger Penrose are discussed in some detail. Also coming under scrutiny are the anthropic principles that have been put forward to claim evidence for human- centered design in the universe, and the highly original prospects for a cosmic future in the face of thermodynamic death imagined by Freeman Dyson and Frank Tipler. All these ideas are better characterized as speculations than legitimate scientific theories, but Drees does not simply dismiss them as examples of the limitations of science and proceed to exploit them as openings for theology to fill. He very wisely makes no attempt to fill scientific gaps with theological concepts, recognizing that science has a way of eventually filling its own gaps. Besides, Drees does not regard a "God of the Gaps" as a desirable metaphor to describe his hypothesized God. His God is transcendent, beyond space and time. God the designer of a mechanical universe does not work either, in the author's view. Cosmological speculations show a variety of ways to an uncreated universe. In Linde's cosmology, bubbles of spacetime foam pop up as quantum fluctuations, inflating into unconnected universes with different physical laws. We are in one of the infinity of these bubbles, with the laws of our universe accidently selected from an infinite variety of possibilities. Our universe is governed by those physical laws that happened to freeze out in one particular bubble. Linde's cosmology has no beginning of time. Neither does Hawking's where time is replaced by a boundless fourth dimension of space, having no beginning nor end, in analogy with a meridian on a spherical earth. Unlike Linde, Hawking suggests that only one set of physical laws is possible, since his universe requires no boundary conditions to provide other choices. As Carl Sagan has put it, Hawking's cosmology leaves "nothing for God to do." Penrose's cosmology is far more conservative, with a rather conventional view of time. He basically argues that our fundamental theories are necessarily incomplete because they do not adequately explain the asymmetry of time. But Penrose has no concrete suggestion for a time-asymmetric theory, and Hawking has not yet produced any significant results from his timeless cosmology. Linde has done a bit better. Although his specific idea of multiple universes remains highly speculative and probably unverifiable, the inflationary universe models that Linde, Alan Guth, and other particle physicists developed in the 1980's solved a number of outstanding problems that had left more conventional gravitational cosmologists such as Hawking and Penrose stumped. Further, the universe-as- fluctuation model has the virtue of economy: It is consistent with all known principles of physics and requires no new ones - and no miraculous origin. Drees presents the anthropic arguments for a universe designed for humankind, and finds them wanting on a number of fronts. These arguments are based on certain cosmic coincidences, without which human life could never have developed. They are so unlikely, it's argued, that they must be a basic part of the structure of things, put there by God for the purpose of producing life and consciousness on earth. But, Drees points out, perhaps science will someday find the physical laws that explain these coincidences. The anthropic God is again a God of the Gaps. I would add that even if the coincidences are accidental, we cannot conclude that life is so unlikely. Many things happen that are highly unlikely, but something has to happen. If our kind of life is unlikely, some kind of life someplace is probably highly likely, especially if an infinite number of universes are popping off all the time, as in Linde's cosmology. Moving from the beginning of the universe billions of years ago, to many billions upon billions of years in the future, Drees discusses the optimistic proposals of Dyson and Tipler that some form of intelligent life will be able to avoid indefinitely the ultimate heat death of the universe required by the second law of thermodynamics. Dyson estimates that all the information contained in the organization of the human species from now to eternity requires no more energy than is radiated by the sun in eight hours. Now I would have thought that eternity requires infinity, but the point is still valid. Life does not require much energy, astronomically speaking. Viewing life as information, one can imagine smaller and smaller pockets of efficient high level organization surviving far into the future without violating the second law of thermodynamics, feeding entropy to the rest of the universe as they decrease their own. Tipler imagines a single pocket of increasingly higher level organization evolving to the Omega Point of Teillard de Chardin. He makes use of his Final Anthropic Principle, developed with John Barrow, which declares that intelligent information processing once brought into existence will never die out. Tipler proposes that the Omega Point will contain all of past life within its information processing system, and thus every being who ever lived will become resurrected at that time - as a computer simulation. Not only that, everything that can be known will be known, and so not only will each of us live our lives over and over an infinite number of times in an instant, we will live all the other lives we might have lived, experience every conceivable pain and pleasure. If ever there was a materialistic theory of heaven and hell, handed on a platter to those who want to believe in God, this is it. But Drees does not buy it either. Some theologian! He detects the flaw in Tipler's cosmology: It is totally deterministic. I find that incompatible with quantum mechanics (though Tipler has arguments to answer this objection). Drees simply does not like the idea of a God that is so far in the future that he can have no possible current relevance, especially since we will all be resurrected anyway, saints and sinners alike. Since he accepts that God is only a hypothesis, Drees is free to reject the Omega Point God. Similarly he rejects the Zero Point God, at least in the sense of a God who creates the universe and its laws, and then leaves it alone. Drees wants a God of the present, and argues that such a God is consonant with all the cosmologies considered. Admitting that this is a want and not a proof, that God is unnecessary to explain the data, Drees argues that God's presence shines through in our desire for perfection and justice in a world apparently devoid of either. Drees classifies three types of response to the apparent absence of perfection in the world. In the first, we simply deny the imperfection. This he relates to the New Age movement and modern American pop-psychology, in which all the ills of society are seen as simply a crisis of perception. Life is in harmony with the world, if only we see it that way. We are capable of anything, from becoming rich to walking on fire. If we think we can do it, then we will. The Dyson and Tipler proposals for ultimate harmony, fully within the material world, are also seen as this type of response, as are the more modest visions of progress that most people hold - the idea that things will someday be better. But realistically, we have no evidence that these are any more than wishes and fantasies. Perhaps things will never get better. The second response to apparent imperfection is that of physicist Steven Weinberg, as representative of a widely-held view among scientists (including me): As the universe becomes increasingly comprehensible, it's pointlessness becomes increasingly clearer. There is simply no sign of a grand design. But, as humans we can make our own design and, by our modest efforts in art and science, lift human life above the level of farce and give it some of the "grace of tragedy." Drees forthrightly admits that he has no argument against this position, except that it might paralyze the person who holds it. My answer: It did not paralyze Weinberg, the late Richard Feynman, and many others who hold it. Far from being paralyzing, the absence of belief has always had a great liberating effect on the intellect. Drees personally prefers a third response. The world is sufficiently ambiguous that, while perfection and justice appear absent, they cannot be ruled out. So the hypothesis of God, as a present transcendent reality representing the locus of the possibilities of perfection, can still consistently be made. So Drees finally proposes a model for God that he claims is consonant with science and the other cosmologies discussed. God is immanent, that is, present in the processes of nature. God is temporally transcendent, both as creator and perfecter. God is spatially transcendent, perhaps embedded in higher dimensions of space so he can be equidistant from all points, like the center of a sphere. God is the locus of values and possibilities, the source and sink of perfection and justice. Finally, God is the source of actuality. Even if the universe appeared out of nothing, a quantum fluctuation in a vacuum, that nothing is something, and God is the source of that something. But God remains a hypothesis. By making that hypothesis we affirm our belief in the basic goodness of the world. And since we have no convincing evidence that God exists, individuals play an active role in making that choice. We are not forced to believe, by evidence or duress. With this book, Willem Drees has made an important contribution to a sensible dialog between science and theology. Understanding the science better than most religionists, he has been able to define a basis for belief, but one (I think he would agree) that is not wholly rational; it still requires the usual complement of faith. In the end, Drees has affirmed that God is an additional hypothesis not required by the data. Despite our inherent desire for justice and perfection, rational human beings cannot violate Occam's razor by adding more hypotheses than are necessary to explain the evidence presented to our senses. Belief in God requires abandoning rationality. The ancient introduction of immaterial spirits were human attempts to explain the unexplained. But science has gradually filled in the explanations with matter alone and uncovered no sign of spirits or gods. Drees still presents us with a God of the Gaps as an explanation for the remaining mysteries of the universe. Humanity may someday explain these mysteries without recourse to the transcendent, as it has the many mysteries of the past. Drees asks, "Can one worship a hypothesis?" He can. I can't. ___________________ Victor J. Stenger is professor of physics at the University of Hawaii and the author of Not By Design: The Origin of the Universe (Prometheus Books, 1988) and Physics and Psychics: The Search for a World Beyond the Senses (Prometheus Books, 1990).