 In recent commentaries on the spread of conspiracy theories during a crisis, comparisons between beliefs in conspiracy theories and delusions have been ubiquitous (Bortolotti et al. 2021). For instance, people have argued that what makes beliefs in flat Earth and climate denial problematic is not their failing to represent reality accurately, but their rigidity and incorrigibility, which they see as a typical feature of delusional beliefs. The comparison has been made on the basis of three criteria: (a) how the beliefs manifest (e.g., implausibility and unshakeability); (b) how the beliefs are formed (e.g., faulty monitoring of ideas); and (c) how the beliefs affect wellbeing and good functioning.