Conspiracy thinking is common and problematic: From one-third to one-half of Americans endorse conspiracy theories related to Qanon, the COVID-19 pandemic, or both, with smaller but still substantial percentages believing in longer-standing conspiracy theories related to climate change, UFOs, assassinations, fluoride, genetically-modified foods, broadcast signals, Pearl Harbor, medical science, or fluorescent lights. I previously wrote about Intuitive-level cues that might make false news items more convincing to people, and some research has shown that conspiracy beliefs are more likely among people who simply use their Narrative system less . But in this post, I will argue that many sources of conspiracy thinking are simple logical errors that exploit vulnerabilities of the Narrative mind. To take a relatively harmless example, let's examine a conspiracy belief that scientists are concealing the existence of the Loch Ness Monster . The Conspiracy Theory Handbook uses the acron...