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Human culture is uniquely open-ended rather than uniquely cumulative

Author

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  • Thomas J. H. Morgan

    (Arizona State University
    Arizona State University)

  • Marcus W. Feldman

    (Stanford University)

Abstract

Theories of how humans came to be so ecologically dominant increasingly centre on the adaptive abilities of human culture and its capacity for cumulative change and high-fidelity transmission. Here we revisit this hypothesis by comparing human culture with animal cultures and cases of epigenetic inheritance and parental effects. We first conclude that cumulative change and high transmission fidelity are not unique to human culture as previously thought, and so they are unlikely to explain its adaptive qualities. We then evaluate the evidence for seven alternative explanations: the inheritance of acquired characters, the pathways of inheritance, the non-random generation of variation, the scope of heritable variation, effects on organismal fitness, effects on genetic fitness and effects on evolutionary dynamics. From these, we identify the open-ended scope of human cultural variation as a key, but generally neglected, phenomenon. We end by articulating a hypothesis for the cognitive basis of this open-endedness.

Suggested Citation

  • Thomas J. H. Morgan & Marcus W. Feldman, 2025. "Human culture is uniquely open-ended rather than uniquely cumulative," Nature Human Behaviour, Nature, vol. 9(1), pages 28-42, January.
  • Handle: RePEc:nat:nathum:v:9:y:2025:i:1:d:10.1038_s41562-024-02035-y
    DOI: 10.1038/s41562-024-02035-y
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