

Episode 114: Campbell's Evolutionary Epistemology
Aug 19, 2025
Dive into the fascinating world of evolutionary epistemology, where Donald Campbell builds on Popper’s ideas about knowledge and nature. Discover how knowledge might evolve akin to natural selection and explore its implications across culture and cosmology. Delve into Quantum Darwinism and the evolving multiverse, alongside the interconnectedness of instinct and learning in animals. The discussion also highlights creativity's role through chance and logic, emphasizing trial and error in innovation. Campbell's insights challenge perceptions of knowledge creation, paving the way for deeper explorations.
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Popperian Trial-and-Error As Universal
- Campbell generalized Popper by claiming trial-and-error (conjecture and refutation) underlies all knowledge growth.
- He argues scientific epistemology can be extended to animal learning and culture.
Blind Variation + Selective Retention Defined
- Campbell defines evolutionary epistemology as blind variation plus selective retention across domains.
- He equates inductive achievement, knowledge increase, and increased fit to environment.
Animal Learning Counts As Knowledge
- Campbell and Popper insist animal learning must be explained by trial-and-error to avoid refuting their epistemology.
- Learning is an adaptation that changes behavior beyond genetic defaults, so it counts as knowledge.