A conspiracy theory is an explanation for an event or situation that asserts the existence of a conspiracy, when other explanations are more probable. The term generally has a negative connotation, implying that the appeal of a conspiracy theory is based in prejudice, emotional conviction, or insufficient evidence. A conspiracy theory is distinct from a conspiracy; it refers to a hypothesized conspiracy with specific characteristics, including but not limited to opposition to the mainstream consensus among those who are qualified to evaluate its accuracy, such as scientists or historians.
A loaded question is a form of complex question that contains a controversial assumption.
Skeptical Inquirer (S.I.) is a bimonthly American general-audience magazine published by the Committee for Skeptical Inquiry (CSI) with the subtitle "The Magazine for Science and Reason". The magazine initially focused on investigating claims of the paranormal, but evolved and expanded to address other pseudoscientific topics that are antithetical to critical thinking and science. Notable skeptics have credited the magazine in influencing their development of scientific skepticism. In the "Letters to the Editor", the most frequent letters of appreciation come from educators.
Scientific skepticism or rational skepticism, sometimes referred to as skeptical inquiry, is a position in which one questions the veracity of claims lacking scientific evidence. In practice, the term most commonly refers to the examination of claims and theories that appear to be unscientific, rather than the routine discussions and challenges among scientists. Scientific skepticism differs from philosophical skepticism, which questions humans' ability to claim any knowledge about the nature of the world and how they perceive it, and the similar but distinct methodological skepticism, which is a systematic process of being skeptical about the truth of one's beliefs.
James Farrell Marrs Jr. was an American newspaper journalist and New York Times best-selling author of books and articles on a wide range of alleged cover-ups and conspiracies. Marrs was a prominent figure in the JFK assassination conspiracy theories community and his 1989 book Crossfire was a source for Oliver Stone's 1991 film JFK. He subsequently wrote books asserting the existence of government conspiracies regarding aliens, 9/11, telepathy, and secret societies. He began his career as a news reporter in the Dallas–Fort Worth–Arlington metroplex and taught a class on the assassination of John F. Kennedy at University of Texas at Arlington for 30 years. Marrs was a member of the Scholars for 9/11 Truth.
Grey aliens, also referred to as Zeta Reticulans, Roswell Greys or Greys, are purported extraterrestrial beings. They are frequent subjects of close encounters and alien abduction claims. The details of such claims vary widely. That said, Greys are typically described as being human-like with small bodies, smooth, grey-colored skin; enlarged, hairless heads; and large, black eyes. The Barney and Betty Hill abduction claim, which purportedly took place in New Hampshire in 1961, popularized Grey aliens. Precursor figures have been described in science fiction and similar descriptions appeared in early accounts of the 1948 Aztec UFO hoax and later accounts of the 1947 Roswell UFO incident.
There are various conspiracy theories that attribute the preparation and execution of the September 11 attacks against the United States to parties other than, or in addition to, al-Qaeda. These include the theory that high-level government officials had advance knowledge of the attacks. Government investigations and independent reviews have rejected these theories. Proponents of these theories assert that there are inconsistencies in the commonly accepted version, or that there exists evidence that was ignored, concealed, or overlooked.
A Dictabelt recording from a motorcycle police officer's radio microphone stuck in the open position became a key piece of evidence cited by the House Select Committee on Assassinations (HSCA) in their conclusion that there was a conspiracy behind the assassination of John F. Kennedy on November 22, 1963. Made on a common Dictaphone-brand dictation machine that recorded sound in grooves pressed into a thin vinyl-plastic belt, the recording gained prominence among Kennedy assassination conspiracy theorists following the HSCA's 1978 conclusion, based in part on this evidence, that there was a "high probability" that Lee Harvey Oswald did not act alone and that the Kennedy assassination was the result of a conspiracy.
The Badge Man is a figure that is purportedly present within the Mary Moorman photograph of the assassination of United States president John F. Kennedy in Dealey Plaza on November 22, 1963. Conspiracy theorists have suggested that this figure is a sniper firing a weapon at the president from the grassy knoll. Although a reputed muzzle flash obscures much of the detail, the Badge Man has been described as a person wearing a police uniform—the moniker itself derives from a bright spot on the chest, which is said to resemble a gleaming badge.
Mark Lane was an American attorney, New York state legislator, civil rights activist, and Vietnam war-crimes investigator. Sometimes referred to as a gadfly, Lane is best known as a leading researcher, author, and conspiracy theorist on the assassination of United States President John F. Kennedy. Lane authored many books, including 10 on the JFK assassination, such as Rush to Judgment,, the 1966 number-one bestselling critique of the Warren Commission and Last Word: My Indictment of the CIA in the Murder of JFK, published in 2011.
The 9/11 truth movement encompasses a disparate group of adherents to a set of overlapping conspiracy theories that dispute the general consensus of the September 11 attacks that a group of Al-Qaeda terrorists had hijacked four airliners and crashed them into the Pentagon and the original World Trade Center Twin Towers, which consequently collapsed. The primary focus is on missed information that adherents allege is not adequately explained in the official National Institute of Standards and Technology (NIST) reports, such as the collapse of 7 World Trade Center. They suggest a cover-up and, at the least, complicity by insiders.
Steven Paul Novella is an American clinical neurologist and associate professor at Yale University School of Medicine. Novella is best known for his involvement in the skeptical movement as a host of The Skeptics' Guide to the Universe podcast and as the president of the New England Skeptical Society. He is a fellow of the Committee for Skeptical Inquiry (CSI).
The Skeptics' Guide to the Universe (SGU) is an American weekly skeptical podcast hosted by Steven Novella, MD, along with a panel of contributors. The official podcast of the New England Skeptical Society, it was named to evoke The Hitchhiker's Guide to the Galaxy. The show features discussions of recent scientific developments in layman's terms, and interviews authors, people in the area of science, and other famous skeptics. The SGU podcast includes discussions of myths, conspiracy theories, pseudoscience, the paranormal, and other forms of superstition, from the point of view of scientific skepticism.
The assassination of John F. Kennedy and the subsequent conspiracy theories surrounding it have been discussed, referenced, or recreated in popular culture numerous times.
The CIA Kennedy assassination is a prominent John F. Kennedy assassination conspiracy theory. According to ABC News, the Central Intelligence Agency (CIA) is represented in nearly every theory that involves American conspirators. The secretive nature of the CIA, and the conjecture surrounding the high-profile political assassinations in the United States during the 1960s, has made the CIA a plausible suspect for some who believe in a conspiracy. Conspiracy theorists have ascribed various motives for CIA involvement in the assassination of President Kennedy, including Kennedy's firing of CIA director Allen Dulles, Kennedy's refusal to provide air support to the Bay of Pigs invasion, Kennedy's plan to cut the agency's budget by 20 percent, and the belief that the president was weak on communism. In 1979, the House Select Committee on Assassinations (HSCA) concluded that the CIA was not involved in the assassination of Kennedy.
Reptilians are supposed reptilian humanoids, which play a prominent role in fantasy, science fiction, ufology, and conspiracy theories. The idea of reptilians was popularised by David Icke, a conspiracy theorist who claims shapeshifting reptilian aliens control Earth by taking on human form and gaining political power to manipulate human societies. Icke has stated on multiple occasions that many world leaders are, or are possessed by, so-called reptilians.
James Patrick Hosty Jr. was an American FBI agent known for unofficially investigating Lee Harvey Oswald in the months before the 1963 assassination of President John F. Kennedy. Hosty later testified before the Warren Commission, and came to believe Oswald shot Kennedy in coordination with an agent of the Soviet Union.
The assassination of John F. Kennedy on November 22, 1963, has spawned numerous conspiracy theories. These theories allege the involvement of the CIA, the Mafia, Vice President Lyndon B. Johnson, Cuban Prime Minister Fidel Castro, the KGB, or some combination of these individuals and entities. Some conspiracy theories have alleged a coverup by parts of the federal government, such as the original FBI investigators, the Warren Commission, or the CIA. Lawyer and author Vincent Bugliosi estimated that a total of 42 groups, 82 assassins, and 214 people had been accused at one time or another in various conspiracy scenarios.
Conspiracy theories about the assassination of Martin Luther King Jr., a prominent leader of the civil rights movement, relate to different accounts of the incident that took place on April 4, 1968, in Memphis, Tennessee. King was assassinated on the balcony of the Lorraine Motel, the day after giving his final speech "I've Been to the Mountaintop". Claims soon arose over suspect aspects of King's assassination and the controversial role of the assassin, James Earl Ray. Although his guilty plea eliminated the possibility of a trial before a jury, within days, Ray had recanted and claimed his confession was forced. Suspicions were further raised by the confirmation of illegal surveillance of King by the FBI and the CIA, and the FBI's attempt to allegedly prompt King to commit suicide.
The Skeptics' Guide to the Universe: How to Know What's Really Real in a World Increasingly Full of Fake is a 2018 book meant to be an all-encompassing guide to skeptical thinking written by Steven Novella and co-authored by other hosts of The Skeptics' Guide to the Universe podcast – Bob Novella, Cara Santa Maria, Jay Novella, and Evan Bernstein. It also contains material from former co-host Perry DeAngelis.
