How can Richard Dawkins’ insights of genomic evolution illustrate Teilhard’s insights into universal evolution?

Today’s Post

Last week we took a first look into how Richard Dawkins understood the role of the gene in biological evolution, offering the distinction between the replication function of the gene and the selection function of the cell as addressed by the theory of Natural Selection.

This week we will look a little deeper at this distinction to see how it opens the door to Teilhard’s insight that both are simply stages in the fourteen billion years of universal evolution.

Replication and Complexification

Dawkins avoids addressing the key to the activity of replication and selection.  While he insightfully describes how the DNA is the premiere agent of replication, he does not address how complexification gets into the replication function itself.  What factor in the DNA engine of reproducing complex amino acids causes the reproduced products to be more complex than those from which they were produced?   Dawkins maps the DNA factory’s reproduction process, which of course leads to the ability of Natural Selection (NS) to guide the cellular products into satisfactory accommodation of their environments, but nowhere in this story is the question of ‘why complexity?’ addressed.

While such ‘complexification’ can clearly be seen to continue in cellular structures, the lack of fossil evidence prevents a clear picture of how it progresses in the ‘pre life’ era.  While simple amino acid molecules are thought to emerge very quickly (180 or so M years after the big bang) that leaves some 8 B years for it to increase to the level of DNA.

But the genes themselves obviously evolve.  This can be seen in a comparison of the size of the genomes and the complexity of the resultant biological entity.  Generally (and unsurprisingly) more complex entities are endowed with larger genomes, from the first eucaryotic cells (a thousand genes) through the early bacterial entities (two thousand genes) through to the human (twenty thousand genes).  Science generally believes that these simpler constructions preceded their more complex offspring over time, suggesting that the molecular increase of complexity seen in genomic evolution continues to increase in the succeeding cellular biota.

So, while Dawkins insightfully describes the intricate process of developing the mainspring of biological evolution, the cell, from a complex interaction among pre-cellular, but not ‘alive’, molecules, he casts his net only to the edge of the stage of universal evolution at which the DNA molecule is alive and well.  What came before it to raise the structure of the molecule from its vastly simpler construct of two atoms, helium hydride, to the incredibly complex structure of the DNA molecule?

Dawkins, Teilhard and ‘Pre-organic Evolution’

In his recognition of the preorganic role of molecules, Dawkins effectively moves the process of evolution back one step from the cell to the DNA molecule, showing that the organic cell depends on the inorganic (or better, the preorganic) molecule for biological evolution.  But that just moves the mystery of complexification back as well.  Conventional thinking sees Darwinist evolution as ‘selecting for’ the complexity seen in science’s history of biological evolution.  But if the ‘replication’ activity of the molecule is required for Darwinist ‘selection’, what causes its own increase in complexity?  Clearly, the more complex a cellular product, the greater the complexity of its component genes.  If there is no ‘feedback’ from the ‘selected’ biological product to the DNA of the ‘replicator’, how does the DNA itself ‘evolve’?  Dawkins does not address this contradiction.

While Dawkins clearly recognizes the significant novelty introduced into the process of universal evolution by the gene, he does not remark on another aspect noted by Teilhard.  In every step up the evolutionary stairway of matter from the big bang to the precursor of the gene, the element of evolution does not itself change in its participation in the elevation to the next level of complexity.  For example, the atom retains its basic structure as it fulfills its potential for unity with other atoms to form molecules.  In the gene, as with all evolutionary products, complexification occurs in the act of unification.  The gene not only presents us with a new mode of evolution, it is also the first time in evolutionary history that the element of evolution itself changes in the act of unification.  As we will see, this phenomenon takes on even more significance in the human phase of evolution as we ourselves evolve to fuller being in the course of pursuing fuller union.

That said, however, in this second of three examples of Dawkins’ thinking we can see the door to Teilhard’s more comprehensive insight into evolution opening a little wider.  Dawkins insightfully articulates the process of the differentiation leading to the diversity addressed by NS, and that of the replication which leads to elements capable of differentiation.  He thus sees them as the result of two different processes, the second of which is rooted in the molecular processes asserted by Teilhard, and the first of which is identified in the theory of Natural Selection.

Therefore, in our first two examples of how the insights of Richard Dawkins define the densely complex process of evolution’s rise from the inorganic to the organic, we can see echoes of Teilhard’s sweeping vision of a universe in the process of becoming more complex.  Dawkins rarely expands his insights to the workings of the universe, but he does admit that where evolution occurs in the universe, it will likely do so with the steps of replication followed by differentiation seen in the genetic process at work on our planet.

Next Week

This week we looked a little deeper into Dawkins’ distinction between replication and selection to see how it opens the door to Teilhard’s insight that both are simply stages in the fourteen billion years of universal evolution.

Next week we address Richard Dawkins’ take on the ‘other end’ of biological evolution: how it continues to proceed through the human species.  As we shall see, this third facet of his evolutionary insights is the one that is most resonant with Teilhard’s much more holistic picture of the process of evolution as it rises through the history of the universe.