This was at the early stages of a lot of agent based modeling, genetic algorithms, etc., etc. And John Holland wrote a book called Adaptation in Natural and Artificial Systems[1]. The universality of the idea that "simple" adaptation is learning applied to a lot of different domains was crisp and very powerful.
1. (https://mitpress.mit.edu/books/adaptation-natural-and-artifi...)
https://en.wikipedia.org/wiki/Holland%27s_schema_theorem
https://en.wikipedia.org/wiki/John_Henry_Holland
Adaptation in Natural and Artificial Systems (1975, MIT Press)