evolutionary ethics
A few weeks ago I wrote a series of posts critiquing Kenneth R Miller’s view that Christians can and should accept the teachings of Evolution. One statement he made unsettled me more than all the rest:
“evolution may explain the existence of our most basic biological drives and desires, but that does not tell us that it is always proper to act on them”
To this point I responded:
1) If our Universe is independent, by definition, every moral principle inside the Universe must be developed internally.
2) If we are creatures that have evolved, the doctrine of Survival of the Fittest is the ultimate, primary, and most reliable basis for the establishment of moral truth. Thus, any action that promotes my survival is justified.
According to evolution, Survival of the Fittest is conclusively, inextricably connected to life. Life depends on this principle — if Miller is right. Based on his premise, advantageous acts must be morally justifiable. Theft and murder and rape can all enable me to survive and pass on my genetic material to future generations, making the acts morally justifiable. We find examples of this throughout the animal kingdom.
Dan wrote the following in response to my post:
Theft, murder, and rape may temporarily advantage the individual, but they undermine the group. Humanity has lived, in all times and places, in groups - it is to our advantage to constrain acts that disrupt the group.
Dan makes a valid point: certain behaviours are of detriment to the species, and so one can make the case that such behaviours should be labeled as “wrong,” thus, immoral. The point, however, overlooks some rather important issues. Let’s consider, based on Evolutionary concepts, what is actually permitted in an Evolutionary-based morality.


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