CELC: Cultural Evolution and Biological Evolution

This series of blog posts began as a set of observations about literary research on the novel A Confederacy of Dunces (Confederacy), by John Kennedy Toole, but I have extended it to include evolutionary literary criticism. I have recently begun to work on incorporating cultural evolution (from Joseph Henrich, who follows the work of Robert Boyd and Peter Richerson). To read the blog post that began this inquiry, see my post from July of 2025 entitled Henrich's Secret of our Success, Cultural Evolution as a new foundation for evolutionary literary criticism.

One might reasonably ask: how does this theory of cultural evolution differ from the sorts of culture-first theories of human nature that might be found in the philosophical tradition of Critical Theory? It turns out that there is a big difference.

Using as a guide to critical theory the book Ten Lessons in Theory by Calvin Thomas (2/e), one can see that a foundation of that school is that humans are fundamentally different than other animals.¹ We humans have achieved a plane of existence in which we can define ourselves. Thomas uses the term antiphysis to signal this discontinuity. Language has allowed humans to cease to be bound by biology.

Thomas's version of Critical Theory--or just "Theory" as he calls it--seems to have some relationship to Henrich's cultural evolution. After all, Thomas calls the human condition, in contrast to mere animal nature, a "'sociogenic' and/or 'biocultural' existence" (22-23 of the preface). Thomas sees his antiphysis arising from Marx's historical materialism, and Marx was a reader of Darwin.

Nevertheless, antiphysis is a stance that culture is nearly completely divorced from biology. Thomas looks to Lacan as an authority, for example. Thomas's Freudian theory of child development is a century out of date. He argues that our use of language means that we have the ability to define ourselves ("the world must be made to mean") in a way that escapes scientific attempts to describe us. For Critical Theory, the philosophical "reification" which is a necessary precondition for describing the world in a scientific way is itself an evil to be exorcised. In particular, for Critical Theory, we have transcended the influence of natural selection.

By contrast, Henrich argues in Secret of our Success that cultural evolution has taken over from genetic evolution among humans, but that biological evolution still operates. In particular, he writes, "Cultural evolution is a type of biological evolution; it's just not a type of genetic evolution" (263). Again, "cultural differences are biological differences but not genetic differences" (263). He makes these statements after explaining that the skill of reading and comprehending a written language "actually rewires our brains to create a cognitive specialization" (262). Finally, culture may have taken over from genetics, but natural selection is still shaping the process.

A more hard-line, genes-only evolutionary psychology diminishes the role of culture in building the human being. However, Henrich's cultural evolution does not abandon completely the behavioral constraints that flow from the genes. "We evolved genetically to have (somewhat) programmable preferences, and modifying our preferences via cultural learning is part of how we adapt to different environments" (266). The word "somewhat" indicates that genes do still have an influence on preferences.

Footnote 1: It is my sincere hope that Thomas' Ten Lessons in Theory is fairly representative of Critical Theory in general, because I have studied it (the second edition), and I don't want to have to slog through another book about Critical Theory related to literary criticism.

Post-Script

In looking back over my history with evolutionary literary criticism and Henrich's cultural evolution, I see that the transition has been more gradual than I realized. I had listened to an audiobook of Secret of our Success in the summer of 2023. I have found evidence that it influenced my thinking about ELC before January 1, 2025. That might help explain why I subsequently declared that a transition from ELC to CELC was not that dramatic of a shift. What happened in the meantime was that I actually studied Henrich in detail and realized that I had to rewrite my entire theory.

Bibliography

Henrich, Joseph. The Secret of our Success: How Culture is Driving Human Evolution, .... Princeton UP, 2015.

Leighton, H. Vernon. "Henrich's Secret of our Success, Cultural Evolution as a new foundation for evolutionary literary criticism." John Kennedy Toole Research. Posted July 1, 2025. URL: https://leighton-toole-research.blogspot.com/2025/07/

Thomas, Calvin. Ten Lessons in Theory: A New Introduction to Theoretical Writing. 2nd Edition. Bloomsbury Academic, 2023.