Gummug, on 10 February 2012 - 07:29 PM, said:
Has anyone ever read or studied the theory of irreducible complexity? Basically (if I understand it right) it means that if you have say, an eye evolved, it's worthless without an optic nerve (and of course a brain). Likewise if you have an optic nerve but no eye it would be of no use. So those would all have to evolve at the same time to be of use to the organism. And this irreducible complexity goes all the way down to the cellular level. So the odds against these "parts" evolving at the same time seem astronomical...
I am not sure that we need to approach the underpinnings of evolution, and argue against it via a top-down abstract like irreducible complexity. We have 18 constituent expressed proteins (OK we can use 25), 4 nucleic acids (or 5 if you count RNA), a constrained set of codons which express for proteins, and a constrained set of mutative processes and generational culling mechanisms.
This is a very straightforward gaming domain. All our contributors are defined, measurable, and finite. Not only finite but not really that large at all. The Genome itself is not that large, as information goes.
So, rather than employ a top-down philosophical assessment which we would use to challenge the causal mechanisms of evolution as we understand them. Why do we not simulate evolution at the codon, mutative and culling levels and just show it happening in a simulation, expressed in terms of the Human Genome? That would pretty much settle the argument.
It is not that big of a deal. We should be able to show that the development of the HAR regions in the human nDNA COULD indeed take place over 250,000 years, and that yes, we can end up with G1 and G2 variants of the Toll Like Receptor 4 gene, in simply 6,000 years of evolution.
So why not do it?