Many Atheist, specially those who have studied Biology from that prospective, raise the objection that since Darwinian Theory of Evolution has defeated the argument from design, and has provided a completely materialistic explanation to complexity of life, all the arguments for the existence of God has fallen apart.
However, although not all scientists agree that the Darwinian Theory of Evolution can account for all complexity of life, a more fundamental point to be noted is that the theory does not account for the Origin of Life in the first place. Infact no theory of undirected chemical evolution or laws of chemistry have been able to provide an answer
I recently came acroos a book, ‘Signature in the Cell – DNA and evidence for Intelligent Design’, in which its author, Dr. Stephen C. Meyer has provided a strong scientific evidence for Intelligence behind the origin of life.
In this book, Dr. Meyer explains the problem and its solution as summarized below
In 1953 Watson and Crick discovered the structure of DNA. Later on Francis Crick gave the “sequence hypothesis” according to which the chemical constituents in DNA function like letters in a written language or symbols in a computer code. Just as English letters may convey a particular message depending on their arrangement, so too do certain sequences of chemical bases along the spine of a DNA molecule convey precise instructions for building proteins.
Thus, the DNA molecule has the same property of “sequence specificity” that characterizes codes and language.
Thus the arrngement of the chemical’s represented by A C G & T dictate instructions for arranging constituent parts of protiens called Amino Acids.
The shape of the protein determines its functions. These shapes of protiens are detrmined in large part by Interactions between each of these amino acids. Each Amino acid has side chains. The interactions between the side chains set constellations of forces that causes different shapes to form.
How does that shape arise? The shape arises from the specifity of Amino acids, which inturns is derived by the specific arrangement, the digital code stored along the DNA molecule.
Where does this information arise? This is what lies at the heart of origin-of-life research.
As Bernd-Olaf Kuppers has stated, “the problem of the origin of life is clearly basically equivalent to the problem of the origin of biological information”
Till date no theory of undirected chemical evolution has explained the origin of the digital information needed to build the first living cell. Why? There is simply too much information in the cell to be explained by chance alone. And the information in DNA has also been shown to defy explanation by reference to the laws of chemistry. Saying otherwise would be like saying that a newspaper headline might arise as the result of the chemical attraction between ink and paper. Clearly “something else” is at work.
As Pioneering information theorist Henry Quastler observed, “information habitually arises from conscious activity.”
The information on a computer screen can be traced back to a user or programmer. The information in a book ultimately came from a writer-from a mental, rather than a strictly material, cause. This connection between information and prior intelligence enables us to detect or infer intelligent activity even from unobservable sources in the distant past.
DNA functions like a software program. We know from experience that software comes from programmers. We know generally that information-whether inscribed in hieroglyphics, written in a book or encoded in a radio signal-always arises from an intelligent source. So the discovery of information in the DNA molecule, provides strong grounds for inferring that intelligence played a role in the origin of DNA, even if we weren’t there to observe the system coming into existence.
One can read the complete article on this by Dr. Stephen C. Meyer on Discovery Institute’s website at DNA and the Origin of Life: Information, Specification, and Explanation