Is Cooperation a Maladaptive By-product of Social Learning? The Docility Hypothesis Reconsidered

The docility hypothesis holds that human social learning produces genuinely altruistic behaviors as a maladaptive by-product. This article examines five possible sources of such altruistic mistakes. The first two mechanisms, the smoke-detector principle and the cost-accuracy tradeoff, are not specifically linked to social learning. Both predict that it may be adaptive for cooperators to allow some altruistic mistakes to happen, as long as those mistakes are rare and cost little. The other three mechanisms are specific to social learning: Through culture, individuals may come to adopt altruistic norms selected at the group level. Culture may provide people with cheap, accessible, but occasionally mediocre information that they are too reliant upon—a kind of informational dumping. Lastly, people may copy sources good to follow in one domain (like technology) but not in another (cooperation), thus committing calibration errors. I argue that those sources of errors are unlikely to lead to important amounts of altruism toward non-kin. Experimental evidence shows humans to be sufficiently skeptical, discriminative, and conscious of their own interest to avoid such altruistic mistakes in most cases. Docile altruism is unlikely to be an important aspect of human cooperation.