 She then moves on to the epistemic irrationality of delusions, i.e., the fact that they are not supported by evidence.This can also not be used to challenge the status of delusions as beliefs, she argues, as many widespread ordinary beliefs are also epistemically irrational.She next addresses the idea that delusions are not beliefs as, first, they are not acted upon in the appropriate way, and, second, people with delusions cannot provide good reasons for their holding the content of the delusion.