“Witness Howard Brennan sitting in the identical spot across from the Texas School Book Depository four months after the assassination. Circle “A” indicates where he saw Oswald fire a rifle at the motorcade.” By Howard Leslie Brennan [Public domain], via Wikimedia Commons. Caption text from Wikimedia Commons also.Apart from Murray in Stranger Things, and the Lone Gunmen in the X-files, most conspiracy theorists don’t have secret knowledge that the majority of humanity is unable to accept. Instead, people turn to conspiracy theories when they feel disempowered and desperate. Conspiracy theories thrive during times of crisis, such as a pandemic, or a profound political crisis. They also emerge at times when trust in government is low. I’ve done work (with my wonderful colleague Leopoldo Rodriguez) on a conspiracy theory in Argentina that focused on the death of government prosecutor Alberto Nisman. In the Argentine case, these conspiracy theories absorbed the news and attention of an entire nation. But during the 2009 influenza pandemic, conspiracy theories became truly global, as people told these narratives from Mexico to Europe. I studied this phenomenon in an article that is open access: