One might imagine that ambiguity would compel humility and confessions of uncertainty, but when ambiguity occurs in the context of coalitional conflict, it may actually increase epistemic arrogance and bias. This is perfectly sensible, however, if we remember that humans are coalitional animals, not dispassionate reasoners.

Cory J. Clark et al., Tribalism Is Human Nature, Current Directions in Psychological Science, vol. 28, no. 6, 2019, pp. 587–592, p. 2