An argument often used against the belief in a Creator who designed the universe runs like this:
The existence of humans is indeed improbable. The laws of nature that govern our existence are but one set out of infinitely many possible sets of laws of nature. Ad had they differed only slightly the universe would be a mere swirl of subatomic particles, free from medium-sized objects like rocks, trees and humans. And even given the actual laws of nature, evolutionary history would have taken different twists and turns and failed to deliver human beings. (Jamie Whyte, Bad Thoughts – A Guide to Clear Thinking, p. 125)
Embedded in that seemingly reasonable statement is an unwarranted — but critical — assumption: that there are infinitely many (or even a large number) of possible sets of laws of nature. But there is no way of knowing such a thing. There is only one observable universe, and one set of observable and (mostly*) consistent laws of nature within it. It is impossible for the human mind to conjure an alternative set of consistent natural laws that could, in fact, coexist in a possible universe. Any such conjuring would be mere speculation, not a falsifiable hypothesis.
Given that, it is impossible to deny that a grand design lies behind the universe. But it is also impossible to prove, by the methods of science, the existence of a grand design. The fact of the universe’s existence is, as I have called it, the greatest mystery.
Atheism, Religion, and Science
The Limits of Science
Three Perspectives on Life: A Parable
Beware of Irrational Atheism
The Creation Model
The Thing about Science
Evolution and Religion
Words of Caution for Scientific Dogmatists
Science, Evolution, Religion, and Liberty
The Legality of Teaching Intelligent Design
Science, Logic, and God
Capitalism, Liberty, and Christianity
Is “Nothing” Possible?
A Dissonant Vision
Debunking “Scientific Objectivity”
Science’s Anti-Scientific Bent
Science, Axioms, and Economics
The Big Bang and Atheism
The Universe . . . Four Possibilities
Einstein, Science, and God
Atheism, Religion, and Science Redux
Pascal’s Wager, Morality, and the State
Evolution as God?
The Greatest Mystery
What Is Truth?
* The exception is quantum mechanics, the science of the sub-atomic world. Sub-atomic particles do not seem to behave according to the same physical laws that describe the actions of the visible universe; their behavior is discontinuous (“jumpy”) and described probabilistically, not by the kinds of continuous (“smooth”) mathematical formulae that apply to the macroscopic world.