Abstract
People with bad beliefs - roughly beliefs that conflict with those of the relevant experts and are maintained regardless of counter-evidence - are often cast as bad believers. Such beliefs are seen to be the result of, e.g., motivated or biased cognition and believers are judged to be epistemically irrational and blameworthy in holding them. Here I develop a novel framework to explain why people form bad beliefs. People with bad beliefs follow the social epistemic norms guiding how agents are supposed to form and share beliefs within their respective communities. Beliefs go bad because these norms aren't reliably knowledge-conducive. In other words, bad beliefs aren't due to bad believers but due bad social epistemic norms. The framework also unifies different explanations of bad beliefs, is testable and provides distinct interventions to combat such beliefs. The framework also helps to capture the complex and often contextual normative landscape surrounding bad beliefs more adequately. On this picture, it's primarily groups that are to be blamed for bad beliefs. I also suggest that some individuals will be blameless for forming their beliefs in line with their group's norms, whereas others won't be. And I draw attention to the factors that influence blameworthiness-judgements in these contexts.