The following information comes from Perry Marshall:
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1) DNA is not merely a molecule with a pattern; it is a code, a language, and an information storage mechanism.
2) All codes are created by a conscious mind; there is no natural process known to science that creates coded information.
3) Therefore DNA was designed by a mind.
If you can provide an empirical example of a code or language that occurs naturally, you've toppled my proof. All you need is one.
Perry Marshall
DNA is the example. Or, rather, directed protein synthesis is the example. The "code" in DNA is the triplet base code that corresponds to amino acids in proteins.
As it turns out, chemistry and natural selection created this particular coded information. It starts with chemistry.
"In more recent work, Fox and his colleagues have shown that basic proteinoids, rich in lysine residues, selectively associate with the homopolynucleotides poly C and poly U but not with poly A or poly G. On the other hand, arginine-rich proteinoids associate selectively with poly A and poly G. In this manner, the information in proteinoids can be used to select polynucleotides. Morever, it is striking that aminoacyl adenylates yield oligopeptides when incubated with proteinoid-polynucleotide complexes, which thus have some of the characteristics of ribosomes. Fox has suggested that proteinoids bearing this sort of primitive chemical information could have transferred it to a primitive nucleic acid; the specificity of interaction between certain proteinoids and polynucleotides suggests the beginning of the genetic code." A. Lehninger, Biochemistry, 1975, pp 1047-1048
Then continues with chemistry and natural selection:
1. AM Poole, DC Jeffares, D Penney, The path from the RNA world. J. Molecular Evolution 46: 1-17, 1998. Describes Darwinian step-by-step for evolution from RNA molecules to cells with directed protein synthesis. All intermediate steps are useful.
http://awcmee.massey.ac.nz/people/dpenny/pdf/Poole_et_al_1998.pdf
Now, the genetic code started out as a 2 base code, not 3. What's more, the present code evolved to minimize changes in the proteins:
5. David H. Ardell and Guy Sella No accident: genetic codes freeze in error-correcting patterns of the standard genetic codePhil. Trans. R. Soc. Lond. B 2002 357, 1625-1642
No accident: genetic codes freeze in errorâcorrecting patterns of the standard genetic code â Philosophical Transactions B
6. Saverio Alberti The origin of the genetic code and protein synthesis Journal of Molecular Evolution, Volume 45, Number 4 / October, 1997, 352-358.
SpringerLink - Journal of Molecular Evolution, Volume 45, Number 4
So, what you thought was an argument against atheism turns out to be the example you were looking for about non-intelligent processes producing a code!