Aaronovitch explains that the reason some of us qualify as stupid is that we assume conspiracy when an event is really the result of accident or chance. Such beliefs are harmful because they distort reality and lead to “disastrous decisions.”
The book doesn’t really break new ground. The author’s role is commentator. He provides the wise insight we stupid people lack on what’s normal and conventional, along with overviews and updates on the conspiracies he selected for inclusion. Among those are the Protocols of Zion as endorsed by Henry Ford, the Commies-under-the-bed scares that implicated most everybody including the Boy Scouts, JFK and RFK assassinations, world government as the aim of international bankers, Masons, Catholics, Zionists, Communists and whoever else, Marilyn Monroe, Princess Di, alternative histories of ancient civilizations founded by extraterrestrials, and 9/11, and the Da Vinci Code.