People facing decision problems may have faulty probability and utility assignments or be burdened with other mistakes. Prior todeciding, they should make a reasonable effort to correct for unacceptable mistakes. A mistake may be acceptable because it is in the remote past, insignificant in the current decision problem, incorrigible, or excusable in light of cognitive limits. Although a decision may be conditionally rational, granting an agent’s decision situation and procedures, it may still fail to be comprehensively rational because the agent’s decision situation and procedures include unacceptable mistakes.
Keywords: comprehensive rationality, conditional rationality, correction of mistakes, corrigible mistake, decision procedure, excusable mistake, mistake,