Today, February 12th, is Darwin’s birthday and also Question Evolution Day.
The kind of evolution being questioned is biological evolution, not the alleged evolution of solar systems or galaxies, although I don’t think that kind of evolution is possible either. The universe is winding down through entropy. It is not evolving into something more complicated than what we see around us.
Biological evolution is also not the differentiation of a specific kind of animal into new breeds or sub-species. That comes about routinely with either artificial or natural selection. However, no new kind of animal can be formed by this selection process alone.
Biological evolution is a way to go from something simple to something complicated without involving the free will of any agent such as God. The whole point of biological evolution is to do away with God as an explanation.
Since God is not involved, evolution will need some mechanism by which change can take place making a transition from slime mold to ourselves plausible. The current mechanism offered is random mutations. Given mutations over long periods of time DNA is supposedly changed so slime mold can turn into a chicken or maybe a dinosaur and the dinosaur can turn into an ape and the ape can become a human being.
However, it has become apparent that mutations aren’t enough to make that happen.
The reason mutations won’t work is because they are generally deleterious. Rarely do they benefit the species undergoing them. That is why our bodies try to correct them, but they do not always succeed. We pass on some of these mistakes to our children who pass them on to their children with additional mutations. A mutational load builds up generation after generation.
This increasing mutational load is what John Sanford calls genetic entropy. Natural selection cannot stop it. The end result of genetic entropy is not some superior creature, but mutational meltdown. That’s when a species is no longer able to reproduce. It goes extinct.
So, unless there is some mechanism for biological evolution to occur besides mutations to supplement natural selection, biological evolution is not possible. Genetic entropy prevents it.
That’s why I celebrate Question Evolution Day.
Admittedly the extinction part is depressing. However, God said that He not only created a very good world with us in it, but in response to the fall of Adam and Eve, He offered us His Son whose sacrifice almost two thousand years ago would allow for a new heaven and a new earth. Given genetic entropy, we are going to need it.