In The
Selfish Gene, Richard Dawkins begs the question, “How did everything come
to be?” At the very beginning of time atoms were mixed together in a loose sort
of soup. These atoms eventually began to link up to form molecules. Then, these
molecules developed the ability to replicate themselves. This was important
because they could now increase their number in the general population.
Similar to
Darwin’s idea of “survival of the fittest”(p.12), these early molecules were
exposed to a process Dawkins deems “survival of the stable”(p.12). The gist of
this process is that each of the molecules was up against the others in a type
of competition. The failure or success of each depended on several
characteristics. “[Certain] types would become relatively numerous in the soup,
not only as a direct logical consequence of their ‘longevity’, but also because
they would have a long time available for making copies of themselves.”(p.17)
“Another property of a replicator variety that must have had even more
importance in spreading it through the population was speed of replication or
‘fecundity’.”(p.17) The faster each molecule could replicate itself, the more
identical replicas it would contribute to the soup. “A third characteristic
of replicator molecules which would have been positively selected is accuracy
of replication.”(p.17) If a molecule makes frequent mistakes then the copies it
makes won’t be identical, therefore lessening its numbers, making it scarcer,
and possibly leading to its extinction.
However, for a molecule to be truly
successful it had to have all three characteristics. Those that did, survived
and began to build “survival machines for themselves to live in.”(p.19) At
first these were rudimentary coatings at best, yet steadily they became
stronger and more complex. “Now they [the replicators] go by the name of genes,
and we are their survival machines.”(p.20) Clearly, it was a competitive,
difficult process, but essential nonetheless. So essential in fact, that these
early replicators have evolved into the basis for all life on earth.
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