Read any history book, and chances are you’ll encounter presumptions, explicit or implicit, about something called “cultural evolution”. Historians have long felt that historical events were taking place within the framework of some kind of process or processes which should be described using terminology borrowed from the biological sciences. Societies, we are told, “evolve” in the same sense that equus “evolved’ from eohippus.
But societies are not biological organisms, and they are not species. Moreover, the term “society” does not correspond to any real thing with which either organism or species form credible analogies. Organic evolution is not an apt, or relevant analogy to apply to human cultures. Those who seek to describe human history as a parallel to biological evolution are profoundly misunderstanding both.
A species is defined, biologically, as the sum total of individual organisms which are sufficiently close, genetically, to be able to successfully reproduce. While there may be practical difficulties in determining how and where this limiting factor applies in given cases (these are called “species problems” in biology), all cases are ultimately supposed to be determined by the same test, in the same frame of reference. In this sense, “species” is a reasonably objective and consistent concept in biology. When we say that Odobenus rosmarus [Walrus] is a species and that Acer saccharum [Sugar Maple] is a species, we are defining each by the same standards.
The terms “society” and “culture”, however, are not defined by any regular and consistent principle. They do not refer to anything that is agreed upon by historians, and when historians talk about “cultural evolution”, they could be referring to almost any arbitrary conglomeration of individual human beings, reified into a hypothetical identity. They may be applying their hypothetical template to whoever happens to be in some arbitrarily defined geographical area, or to some people who speak the same language, or to people who are subject to a particular set of laws, or to people who are related by putative kinship, or who are mobile but traveling together, or any nebulous assembly of these elements. There is no agreed upon principle defining a society or a culture. The subdivisions of the human race being discussed are not made by any coherent principle, and there is no consistent test or value involved. This alone makes talking about “cultural evolution” nothing more than a vague analogy to biological evolution, and a dubious one, at that. Read more »








