- The fact that the universe had a beginning
- The fact of cosmic design
- The fact that life's origin is inexplicable on naturalism
- The fact of biological information
The first of these facts is our conviction that the universe must have had a cause and didn't cause itself. The universe is contingent, or seems to be. It's therefore prima facie reasonable to think that its existence depends upon something beyond itself. It's possible, perhaps, that it somehow created itself, but that seems counter-intuitive and ad hoc.
Many atheists tell us that the existence of the universe is just a brute fact and that nothing is gained by positing a Creator since the Creator Itself requires an explanation. As philosopher Del Ratzsch points out, however, this sort of reply, as common as it is, is not very compelling. He invites us to consider an analogy to the discovery on Mars of a perfect ten-meter cube of pure titanium .
Most people would think that the cube was produced by some kind of intelligent beings, aliens, and would regard the cube as virtual proof that such beings existed. Suppose, though, that there are those who deny either the existence or relevance of alien beings, claiming that the cube is just there - a brute fact of nature. Suppose, too, that when pressed for some further explanation of the cube, their reply was to point out that the advocates of the alien theory had no clue as to where the aliens came from or how they had manufactured the mysterious structure.
Such a reply would certainly sound odd.
The inability to say anything much about who the aliens were or where they came from doesn't count at all against the theory that intelligent agents were responsible for the cube, nor does it mean that the alien theory is no better than the brute fact theory. The existence of an intelligent alien manufacturer of the cube is surely an inference to the best explanation.
The second fact about the world that is easier to explain on the theistic rather than the atheistic hypothesis is that the parameters, forces and constants which govern the cosmos are exquisitely fine-tuned. Here is one example of the dozens which could serve:
If the initial density of matter in the universe had deviated by as little as one part in 10 to the 60th power (a value referred to by scientists as the "density parameter"), the universe would have either fallen back on itself or expanded too quickly for stars to form. This is an unimaginably fine tolerance.
Imagine a stack of dimes stretching across 10 to the 30th universes like our own. Let the dimes represent calibrations on a gauge displaying every possible value for the density parameter. Imagine, too, that a needle points to the dime representing the critical value. If the initial density of our cosmos deviated from that critical value by a single dime our universe, if it formed at all, would not be suitable for life.
Or imagine a console featuring dials and gauges for each of the dozens, or perhaps hundreds, of constants, parameters, and other cosmic contingencies which define the structure of our world. Imagine that each dial face shows trillions upon trillions of possible values. Each of those dials has to be calibrated to precisely the value to which it is actually set in our world in order for a universe to exist and/or for life to thrive.
Of course, it could be an astonishing coincidence that all the dials are set with such mind-boggling precision. Or it could be that there are a near infinite number of universes having all possible values and that ours just happens to be one that is perfectly calibrated for life. But not only is this an extraordinarily unparsimonious hypothesis, it also elicits the question of what it is that's generating these universes and what evidence we have that they even exist.
It's much simpler to bow to Ockham and assume that there is just one universe and that its structure manifests a level of engineering of breath-taking precision, a conclusion perfectly compatible with the idea that there's an intelligent agent behind it all. "It's crazy," as philosopher Richard Swinburne says, "to postulate a trillion universes to explain the features of one universe, when postulating one entity (God) will do the job."
One further point: Scientists assume as they study the universe that it is rational, that it lends itself to rational inquiry, but if so, then an entirely non-rational explanation for it seems less likely than an explanation which incorporates rational causes.
The third fact is that it has proven exceedingly difficult to explain how the first living unit, a cell able to metabolize, reproduce, eliminate waste, manufacture proteins, etc., could have ever arisen solely by chance. The odds against a chance origin of life, with no input from an intelligent agent, are so improbable as to make belief that it happened a matter of extraordinary blind faith.
It's somewhat like insisting that a very complex, fully functional and self-replicating computer could have arisen by the action of sun, wind, rain and lightning swirling through a junkyard for a couple million years.
A fourth fact about the world from which we might infer that there is an intelligent agent involved somehow in its development is the existence of biological information. The biosphere is information-rich, a fact which raises the question where this information came from and how it ever came about.
The naturalist's answer is that the information, such as we find in DNA and cellular processes, resulted from blind mechanistic forces acting purposelessly and randomly over eons of time. Such a feat is within the realm of the logically possible, of course, but if we're going to limit ourselves to the lessons of experience we must acknowledge that information whose provenience we can ascertain is always the product of an intelligent mind.
Random processes can produce highly improbable patterns (like the particular pattern of craters on the moon) and they can produce very specific recognizable patterns (like the repetition of a single letter typed by a monkey), but what we've never observed a random, non-teleological process do is generate both (such as we find in a computer program). Yet that is precisely what we have in the genetic code.
The genetic code and the complex of proteins and transcription molecules necessary to decipher that code, must've arisen prior to the ability to replicate and thus prior to the action of any selection mechanism, in other words, by sheer chance. Believing it happened is somewhat analogous to believing that a tornado sweeping through a junkyard could leave in its wake a fully assembled and functional jet airplane.
There may someday be a satisfactory naturalistic explanation for the origin of biological information, but until that day arrives the obvious existence of that information suggests an intelligent agent lurks somewhere in its history.
More tomorrow.
