SCIENCE is constantly unraveling new secrets about the universe and the life that thrives on our planet. Nonetheless, scientists and laymen alike still face such fundamental questions as these: How did the universe come to be? What existed before that? Why does the universe appear to be expressly designed to support life? How did life arise here on earth?
Science still cannot really answer such questions. Some people doubt that it ever will. Many, then, have felt compelled to rethink their views and beliefs. Let us consider three of the mysteries that are leading some scientists to wonder about the existence of a Creator.
A Fine-Tuned Universe—By Chance?
One major question has to do with the fine-tuning of our cosmos. Why is the universe equipped with fixed physical laws and with natural constants that are precisely and ideally suited to support a planet like ours and all the life on it?
What do we mean by fine-tuning? Consider, for instance, the precise settings of four fundamental physical forces: electromagnetism, gravity, strong nuclear force, and weak nuclear force.* These forces affect every object in the universe. They are set and balanced so precisely that even slight changes could render the universe lifeless.To many reasoning minds, the explanation simply has to be something more than mere coincidence. John Polkinghorne, formerly a physicist at Cambridge University, concluded: "When you realize that the laws of nature must be incredibly finely tuned to produce the universe we see, that conspires to plant the idea that the universe did not just happen, but that there must be a purpose behind it."
Australian physicist Paul Davies made a similar point: "There is no doubt that many scientists are . . . scornful of the notion that there might exist a God, or even an impersonal creative principle." He added: "Personally I do not share their scorn. . . . I cannot believe that our existence in this universe is a mere quirk of fate, . . . an incidental blip in the great cosmic drama."The fossil record has failed to prove that life evolved
The Challenge of Complexity
A second problem challenging today's scientists involves the sheer complexity of the world around us. Common sense tells us that the more complex an event, the less likely it is to occur by chance. Consider an example.
There are myriad chemical reactions that need to be precisely staged to form DNA, the building block of life. Three decades ago Dr. Frank Salisbury of Utah State University, U.S.A., calculated the odds of the spontaneous formation of a basic DNA molecule essential for the appearance of life. The calculations revealed the probability to be so tiny that it is considered mathematically impossible.#
Complexity is especially evident when living organisms have complex parts that would be useless without other complex parts. Let us focus on the example of reproduction.
According to evolutionary theories, living things continued to reproduce as they became ever more complex. At some stage, though, the female of a number of species had to develop reproductive cells requiring fertilization by a male with complementary reproductive cells. In order to supply the proper number of chromosomes to the offspring, each parent's reproductive cells undergo a remarkable process called meiosis, whereby cells from each parent are left with half the usual number of chromosomes. This process prevents the offspring from having too many chromosomes.
Of course, the same process would have been needed for other species. How, then, did the "first mother" of each species become capable of reproducing with a fully developed "first father"? How could both of them have suddenly been able to halve the number of chromosomes in their reproductive cells in the manner needed to produce a healthy offspring with some characteristics of both parents? And if these reproductive features developed gradually, how would the male and female of each species have survived while such vital features were still only partially formed?
In even a single species, the odds against this reproductive interdependence coming about by chance are beyond measuring. The chance that it arose in one species after another defies reasonable explanation. Can a theoretical process of evolution explain such complexity? How could accidental, random, purposeless events result in such intricately interrelated systems? Living things are full of characteristics that show evidence of foresight and planning—pointing to an intelligent Planner.
Many scholars have come to such a conclusion. For example, mathematician William A. Dembski wrote that the "intelligent design" evident in "observable features of the natural world . . . can be adequately explained only by recourse to intelligent causes." Molecular biochemist Michael Behe sums up the evidence this way: "You can be a good Catholic and believe in Darwinism. Biochemistry has made it increasingly difficult, however
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