The question raised is intriguing - to say the least - and the book can be read as a chronicle of many cases, well described and classified...
Lisa Bortolotti is Professor of Philosophy at the University of Birmingham. Her research is in the philosophy of the cognitive sciences, with a particular focus on the limitations of human cognition and human agency. She is the author of Delusions and Other Irrational Beliefs (OUP 2009), for which she was awarded the APA Book Prize in 2011, and Irrationality (Polity 2014). She is also editor of Delusions in Context(Palgrave 2018).