The most dangerous of all mental epidemics is mass psychosis. A mass psychosis is an epidemic of madness that occurs when a large portion of society loses touch with reality and descends into delusions.
Such a phenomenon is not fiction. Two examples are the American and European witch hunts of the 15th and 16th centuries and the rise of totalitarianism in the 20th century. What are the different stages of mass psychosis, and can a mass psychosis be reversed?
