Why DNA is Information

One strong argument that non-Darwinists have against Darwinism is the simple fact of DNA. Darwinism requires evolution to occur due to random mutations coupled with Natural Selection. DNA, on the other hand, requires some very specific sequences in order for some very specific organisms to exist. As a result, non-Darwinists (be they Creationists, theistic evolutionists, or believers in panspermia) find DNA to be a convincing counter to gradualistic Darwinist claims regarding the origin of life. The basic argument can be summarized thus:

A) DNA is information.
B) Information cannot arise from a random, non-directed process.
C) Darwinism requires DNA to have arisen from a random, non-directed process.
D) Therefore, Darwinism cannot explain DNA.

Since C) is a given under Darwinism, the only thing that a Darwinist can do to reject this proof is to deny either A) or B). In a coming post, I will seek to demonstrate the truth of B). For this post, I will seek to demonstrate the truth of A).

Information is something that is most commonly associated with language. But what separates information theory from linguistics is that information theory moves beyond mere language and incorporates many other things. Information theory really began only recently, after it was discovered language could be transmitted via mechanical devices. Even before it was a science, telegraph operators would have to engage in information theory to distinguish between the pulses of Morse code on the line and random noise (caused, say, by a tree swaying in a breeze with a branch striking the telegraph wire and interrupting the electrical signal). This became more pronounced with radio signals. The need to differentiate between information—the message being sent—and noise—radio interference, random fluctuations, etc.—required the spawning of information theory.

To discuss this, we need a working definition of information. As you can see from the above examples of the genesis of information theory, one way would be to say: Information is non-random.

This, however, is not sufficient. After all, if a telegraph operator received only a constant signal of dot-dash (for A) that would convey no information either. Linguistic meaning is not conveyed in that manner.

So we can start with: Information is non-random and non-repeating.

But non-random and non-repeating…what? If we’re looking at text being written on the page, it’s obvious: non-random and non-repeating letters. Thus, we know that

The quick brown fox jumps over the lazy dog.

is information, whereas

lasdkfjuyqwensd

and

VVVVVVVVVVVVVVVVVVVVVVVVVVVV

are not information.

But if we’re dealing with telegraph signals, we’re not looking at letters on the page. We’re listening to electrical pulses being translated into sounds and visual representations created by the raising and lowering of a pen based on those electrical pulses. And with radio, we have to examine radio waves, using instruments to detect whether or not information is present (which, today, you can do by turning on your radio and listening to the radio pulses transformed to electrical impulses which drive a magnet that creates airwaves that bring sounds to your ears and differentiating it from static).

But why stop there? Why not examine the natural world as well? And it is when we do that that we discover the richness of information in living structures.

Consider rocks for instance. Sandstone is a great example. If you examine a piece of sandstone under the microscope, you will notice that the individual grains that make up that stone appear quite random. While there are certain elements that show up more often (due to their greater abundance on Earth), there is no foundational law governing which grain in the sandstone should be next to another grain in the sandstone. It’s random.

Now look at a diamond, one that has not been cut so as to avoid human interference. It’s crystallized carbon. The atoms of carbon are structured in a specific pattern, and there are no random variations from it (the only random variations in a diamond come from the inclusion of other elements that are not carbon, which will affect the diamond’s color, etc.).

Neither a rock nor a diamond carry information in their structure. However, someone can carve an inscription into a rock and someone can laser designate a diamond. Someone can take sandstone rocks and organize them in such a manner as to build a bungalow, and someone can put a diamond into a ring setting. So consider a bungalow. Is a bungalow information? Is a diamond ring information?

If we use the above starting definition, then they would be. A bungalow and a diamond ring are both non-repeating and non-random.

But this immediately brings to mind the next question. What if someone were to design a bungalow that was repeating. A bungalow on top of another bungalow? Story after story, until you have a repeating-structure: a sky scraper. Now the building would be repeating, and therefore not information.

But sky scrapers do not appear in nature. They have to be built, and that requires work beyond the foundational laws that govern matter. When a diamond is in a crystal shape, it takes no extra effort on the part of the carbon atoms to get there; in fact, that’s the simplest way that the carbon atoms can organize under those circumstances. Likewise, it takes no special effort for a grain of sand in sandstone to sit next to another random grain of sand. That’s the natural state.

Therefore, we can add our final requirement to what determines information. Information isn’t just non-repeating and non-random, but it must be something that is non-repeating and non-random and cannot be explained by only foundational forces. (Note: by “foundation forces” I mean the laws of the universe that materialists consider to be basic, such as the laws of magnetism and the way atoms will bond with each other. For the sake of argument, we will assume these are the basic laws and that they will happen by “default” without any divine guidance needed.)

So a sky scraper may be repetitive and it may mimic a crystallized structure. But sky scrapers are not created using foundational forces of nature. Indeed, the individual units that create the sky scraper themselves are composed of bungalows, and bungalows (in our example, anyway) are composed of sandstone. Sandstone does not form bungalows using foundational forces of nature. It requires something else to organize sandstone into a bungalow. Therefore, sky scrapers exist due to something beyond foundational forces of nature.

And that brings us to DNA. As we know, DNA functions as the blueprint for life. It’s called that because the DNA is used to form all the amino acids that are used for cellular life. And the cellular life must function in order for organs to function. And organs must function for organisms to function. DNA therefore determines many things about the organism, including the means by which that same DNA can be replicated.

Let us therefore ask our questions. Is DNA repetitive like a crystal? If it was, it would mean that Adenine had a proclivity for having Thymine next to it, so you’d have ATATATATATATATAT. Or perhaps Guanine and Thymine would be structured like that.

But the fact is that there is no real proclivity at all between the various bases. Thymine could just as easily follow a Cytosine as an Adenine, or even another Thymine (note that I am not talking about the base pair here, but only which base would be next to another base on the same strand).

Since there is no proclivity, then we would expect natural forces to create random structures of DNA. But is DNA random? Obviously not, because the higher organism depends on the structure of DNA creating the right amino acids to form the right cells to form the right tissues, etc. If the DNA is not exactly like it is, the organism does not exist. But since there is not only one organism, but in many cases there are billions of the same kind, then DNA must have structure; it is not random.

If it is not random, and it is not crystallized, and if it would be one or the other if left only to foundational forces, then DNA is information.