Key Insight
A philosophical fragment examining whether identity-protective cognition might be considered individually rational even when it is collectively epistemically destructive.
If identity-protective cognition is individually rational, then the cultural cognition thesis has a very different normative valence than if it represents systematic error. And the answer has implications for what kinds of interventions might address science communication failures.
The case for rationality: for most citizens on most policy questions, the instrumental payoff from forming accurate beliefs is negligible. Whether or not an individual correctly understands the science on climate change, their individual behavior will not meaningfully affect climate outcomes. But the cultural payoff from holding positions that signal group membership is substantial and immediate.
If the material benefits of accurate beliefs are near zero for any individual citizen, and the social costs of holding culturally deviant beliefs are high , then identity-protective cognition may be individually rational even though it is collectively epistemically harmful.
The case against rationality focuses on epistemic costs. Even granting that accurate beliefs about policy-relevant science have low immediate instrumental value, they have positive long-term value — both for collective decision-making and for the individual's capacity to navigate a complex world. What the fragment suggests for science communication is that interventions aimed solely at correcting individual beliefs, without attending to the social structures that make identity-protective cognition locally rational, are unlikely to succeed.