 Here’s how the model applies in epistemology. (A more complicated model has lately been proposed, which takes into account the agent’s own risk-assessment and decisions about when and how to perform; see Sosa 2015.) Belief-formation is a psychological performance with an aim. For beliefs, accuracy is identified with truth, adroitness with manifesting intellectual competence, and aptness with being “true because competent”. Apt belief, then, is belief that is true because competent. A competence, in turn,