There is a conspiracy It's a good idea to say the word in conversation, and look for someone who won't bring up the subject of how Elvis, John F. Kennedy and Bigfoot are frozen in an underground Bunker.

There are sometimesspiracies that are actually true. The Watergate break-in is an example of a conspiracy. It's probably never been easier for false conspiracy theories to spread because of the social-media algorithms that push users towards ever-more-emotional, conspiratorial content.

Grains of truth or an emotional need for believers are some of the reasons why the top conspiracy theories are hard to get rid of. Hardcore believers are good at rationalizing evidence that doesn't jive with their beliefs. People who disagree with the conclusions of the biggest conspiracy theories are mistaken.

There is truth out there.

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The 9/11 Conspiracies

An aerial view of the NYC Custom house and surrounding area after the 9/11 terrorist attacks.

An aerial view of the NYC Custom house and surrounding area after the 9/11 terrorist attacks. (Image credit: HUM Images/Universal Images Group via Getty Images)
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The 9/11 attacks were the result of a conspiracy between Osama bin Laden and a group of Saudis.

It's too easy for some. Conspiracy theorists have a lot of different explanations for what happened at the World Trade Center and Pentagon that day, many of which are based on knowledge of the President, Vice President and top Bush advisors.

The attacks being orchestrated by Israel are an example of an anti-Semetic conspiracy theory. The Twin Towers must have been brought down by controlled demolition becausejet fuel can't melt steel beams, according to some people. It is possible for the columns holding up skyscrapers to fail catastrophically if there is a fire on multiple floors.

If a hijacked plane didn't crash into the Pentagon, where is Flight 77 and its passengers? bureaucratic incompetence is often mistaken for a conspiracy. Our government is so efficient, knowledgeable and capable that it could not possibly have failed in detecting the plot ahead of time or responding to the attacks.

Princess Diana's murder

Diana, Princess Of Wales, sitting on the steps outside her country home at Highgrove.

(Image credit: Tim Graham Photo Library via Getty Images)
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Conspiracy theories swirled around Princess Diana's death. It was a shock when it was learned that John F. Kennedy had died. Princess Diana died of old age, political intrigue, and eating too much rich food, and they don't get killed by drunk drivers.

The billionaire who promoted it was the father of Dodi Al-Fayed, who was murdered with Diana. The Royal Family requested that the accident be an assassination, according to Al-Fayed. The 2006 inquiry looked at Al-Fayed's claims and found them to be baseless, while the inquest into Diana's death found no substance to the conspiracy theory. The New York Times reported that on April 7, 2008, the coroner's jury concluded that the deaths of Diana and Al-Fayed were due to negligent behavior by their chauffeur and photographers.

A billboard that says “Buy

(Image credit: Germi_p via Getty Images)
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Have you ever watched a movie and gotten high? Do you get the urge to buy a new car when you sit on your sofa and watch tv? It is possible that you are the victim of a subliminal advertising conspiracy. The authors of "Subliminal Seduction" and "The Hidden Persuaders" are proponents of the conspiracy theory. The books caused a public uproar and led to FCC hearings, but many of them have since been discredited and studies of the effects of subliminal advertising have been faked.

The band Judas Priest was sued in 1990 for allegedly causing a teen's suicide with subliminal messages, but the case was dismissed due to lack of evidence. It is possible to test subliminal mental processing. Just because a person sees something subconsciously doesn't mean much. There is no benefit to subliminal advertising over regular advertising, even if there is a flash of a commercial. It's easy to get a person to see something for a split second, and filmmakers do it all the time. It's one thing to get a person to buy or do something based on a split second.

Moon landing hoax

Here, a real image of Buzz Aldrin saluting the U.S. flag on the surface of the moon.

Here, a real image of Buzz Aldrin saluting the U.S. flag on the surface of the moon. (Image credit: NASA)
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The astronauts went to the moon. The moon landing didn't happen in the 70s.

"We Never Went to the Moon: America's Thirty Billion Dollar Swindle" and "Capricorn One" describe the conspiracy. There was a Fox documentary in 2001 called "Conspiracy Theory: Did We Land on the Moon?", which claimed that the whole Apollo moon-landing program was fake.

There are many debunkings of the various moon hoax claims, and then there's the issue of the hundreds of pounds of moon rocks that have been studied around the world and verified as being of extraterrestrial origin. If NASA didn't get the rocks during the moon landing, how did they get them? Why would scientists from all over the world take part in a hoax?

Many astronauts find the implication that they faked their accomplishments offensive. The conspiracy theorist punched the man in the jaw when he confronted the man for faking the moon landings.

Paul McCartney's death

Paul McCartney, who is very much alive, performs onstage during the 36th Annual Rock & Roll Hall Of Fame Induction Ceremony on Oct. 30, 2021 in Cleveland, Ohio.

Paul McCartney, who is very much alive, performs onstage during the 36th Annual Rock & Roll Hall Of Fame Induction Ceremony on Oct. 30, 2021 in Cleveland, Ohio. (Image credit: Kevin Mazur/Getty Images for The Rock and Roll Hall of Fame)
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McCartney is alive and well. If the coronaviruses hadn't canceled his shows, he'd still be on the road. He has a website and sometimes appears in the tabloids.

It's pretty good for a guy that some people think died in 1966.

The "Paul is dead" conspiracy is based on the fact that Paul McCartney was decapitated in a car accident after getting into an argument with the other Beatles. The band hired a soundalike and a lookalike.

The band dropped clues in their album covers and lyrics to let the public know that something wasn't right. On the cover of the Abbey Road album, the Beatles are all pictured crossing a zebra crossing, but only McCartney is barefoot and out of step with the other three. I think this must mean something. Fans came together to look for more clues despite the band's denials.

John F. Kennedy's assassination

President John Kennedy rides in a motorcade from the Dallas airport into the city with his wife Jacqueline and Texas Governor John Connally.

President John Kennedy rides in a motorcade from the Dallas airport into the city with his wife Jacqueline and Texas Governor John Connally. (Image credit: Bettmann / Getty Images)
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The assassination of John F. Kennedy took place in Dallas. Was Lee Harvey Oswald his own man? Was there more than one person on the knoll?

There are hundreds of books, articles and films that have been written about these questions. It didn't help that Lee Harvey Oswald was murdered in the basement of Dallas Police Headquarters by a guy with ties to the Mob. People thought the whole thing was crazy.

There are a lot of shadowy culprits that have been suggested as the masterminds of the Kennedy assassination. The official investigation into Kennedy's death did not find evidence of an overarching conspiracy.

Roswell crash & cover-up

The Roswell Daily Record from July 9, 1947, details the Roswell UFO incident.

The Roswell Daily Record from July 9, 1947, details the Roswell UFO incident. (Image credit: Roswell Daily Record)
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Almost all skeptics and believers agree that something crashed on a remote ranch outside of Roswell in 1947. The government initially said it was a saucer, but then said it was actually a weather balloon. The best evidence shows that it was a military balloon called Project Mogul.

The photos of the Project Mogul balloons are very similar to the descriptions of the wreck first reported by the original witnesses. It wasn't until thirty years later that a book on the Roswell crash was published, and it wasn't until decades later that the stories about crashed alien bodies came to light. The cover-up didn't hide a crashed saucer. It hid a program from the public.

Protocols of the Elders of Zion

(Image credit: Chronicle/Alamy)
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"The Protocols of the Learned Elders of Zion" is an antisemitic book that claimed to show a Jewish conspiracy to achieve world domination. Christianity's morality, finances, and health were targeted by a small group of powerful Jews. The antisemitic idea that there is a Jewish conspiracy has been around for a long time and has been repeated by many people. In 1920, Henry Ford paid $500,000 to have half a million copies of "The Protocols of the Elders of Zion" published, and in the 1930s, the book was used by the Nazis as justification for its genocide against Jews.

The book is still in print even though it has been discredited as a hoax.

The Satanic panic

Symbol of satanism, devil worship.

(Image credit: Shutterstock)
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During the 1980s and 1990s, America believed an underground network of Satanists was abducting, torturing and abusing children. Conspiracy theories ruined lives and livelihoods.

Geraldo Rivera's NBC special "Devil Worship: Exposing Satan's Underground" was the highest point. Rivera used misleading and inaccurate statistics, crimes with only tenuous links to Satanism, and sensationalized media reports. It was the most watched documentary of all time. According to Rivera, there are over one million Satanists in the US.

The idea of being able to recover memories of abuse with the help of hypnotism and a therapist caused the panic. This idea was popularized in the 1980 book "Michelle Remembers," which was co-written by a Canadian psychiatrist and the patient he eventually married.

A California parent accused daycare owners of sexually abusing her son during the McMartin preschool trial in 1983. The police sent a letter to the parents telling them that their children may have been abused. Children of networks of secret tunnels and witches flying through the air have 888-492-0 888-492-0 888-492-0's.

The daycare owners were acquitted or had the charges dismissed. One was sentenced to five years in prison. Similar accusations were spread through daycares. Children making sensational accusations because they wanted to please the authority figures questioning them were spurred on by now-discredited methods of questioning.

The FBI agent Kenneth Lanning concluded that the rumors about Satanism were not true. According toPhillips Stevens, Jr., associate professor of anthropology at the State University of New York at Buffalo, the allegations of crimes by Satanists are the greatest hoax perpetuated upon the American people in the twentieth century.

Chemtrails

A Lufthansa Boeing 747-8 aircraft spotted flying from Frankfurt FRA airport in Germany to Chicago. The overflying jumbo jet airplane is leaving behind contrails or condensation trail, a white vapor line.

(Image credit: Nicolas Economou/NurPhoto via Getty Images)
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The airplanes leave trails of condensation behind them. These tracks don't stay in the cloud long.

Some conspiracy theorists think the condensation trails are more sinister. According to the "Chemtrails" conspiracy theory, scientists and governments are seeding other chemicals into the atmosphere. What's the reason? Pick what you want to say. It could be an attempt to change the weather.

Researchers who study clouds' impact on global temperatures are often harassed by Chemtrails believers who think they are part of a large-scale conspiracy to secretly spray unknown chemicals into the atmosphere. A 2016 study found no evidence of unexplained or unusualContamination in the environment. The Guardian reported that true believers are not swayed.

Barack Obama birtherism

Phil Wolf, owner of a used car dealership, paid $2,500 to have this “birther” billboard painted, shown here on Nov. 21, 2009 in Wheat Ridge, Colorado.

Phil Wolf, owner of a used car dealership, paid $2,500 to have this “birther” billboard painted, shown here on Nov. 21, 2009 in Wheat Ridge, Colorado. (Image credit: John Moore/Getty Images)
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Chemtrails are not really penetrating the larger public due to the fact that they are in the background of some communities. Other people have big impacts. One of the latter is the birtherism conspiracy.

Barack Obama was born in Hawaii in 1961. As soon as Obama began his campaign for president in 2008, "birthers" began to circulate the conspiracy theory that he was actually born in Africa. Even though his mother was an American citizen, they argued that he couldn't be president because he wasn't a natural born citizen of the U.S.

There were announcements of Obama's birth in the Honolulu newspaper, but friends of Obama's mother didn't remember the day she went into labor. In order to fight the conspiracy, Obama had to release a copy of his birth certificate in 2008 and a new one in 2011.

According to Gallup, the number of Americans who believed in birtherism decreased after the release of 2011. Many conservatives advocated for birtherism. Is that among them? The soon-to-be president was Donald Trump.

COVID and 5G

Anti-lockdown conspiracy theorists and coronavirus deniers protest in Trafalgar Square in London against the government and mainstream media who, they say, are behind disinformation and untruths about the COVID-19 pandemic, on Aug. 29, 2020.

Anti-lockdown conspiracy theorists and coronavirus deniers protest in Trafalgar Square in London against the government and mainstream media who, they say, are behind disinformation and untruths about the COVID-19 pandemic, on Aug. 29, 2020. (Image credit: Richard Baker / In Pictures via Getty Images)
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Since 9/11, there has been more conspiratorial thinking than any other event. There are a lot of conspiracy theories about the origin of the virus. Doctors are blamed for deaths with other causes when they say the COVID virus is to blame. Kevin Trudeau, best-selling author of "Natural Cures They Don't Want You to Know About", has fed into the conspiracy about medical by fomenting a distrust of Big pharma.

There is a conspiracy that mixes fears of 5G wireless technology with fears of the virus. Researchers reported in 2020 in the journal Media International Australia that cell phone towers weaken the immune system and make people sick with COVID. The COVID-19 vaccines contain tracking chips that connect to 5G networks so that the government can surveille everyone's movements, according to another conspiracy theory.

5G chips are too large to fit through a vaccine syringe, and even the smallestRFID chips that could fit need a power source that couldn't make the squeeze.

Birds aren't real

Flamingos flying on lake. Taken via drone. Yarisli Lake in Burdur, Turkey.

(Image credit: temizyurek/Getty Images)
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A conspiracy is not a conspiracy. It is an elaborate piece of performance art.

Do you think that makes it more of a conspiracy theory?

Peter McIndoe started spreading the idea of the Birds Aren't Real conspiracy. McIndoe was a true believer until a New York Times interview in December of 2021. Birds Aren't Real has a staff, has organized real-life protests, bought real-life billboards, and has branded vans with their claim. McIndoe wants to parody the misinformation that Gen Z finds itself stewing in.

Birds Aren't Real is not a joke. He told the New York Times that it was from the inside. Birds Aren't Real has been a way for people to process the lunacy in all this.

Local media often reported on Birds Aren't Real as if it was something young people really believed rather than a joke. The joke will expose all the ways misinformation thrives.

McIndoe said that they have been spreading misinformation for the last four years. In the internet age, it's important to hold up a mirror to America.

The Earth is flat

Earth rendered as a flat disk floating in space.

Flat Earth theories hold that our home planet is a pancake. (Image credit: Alamy)

The internet has given new life to Flat- Earth conspiracy theories. They are strange and quaint. The ancient people were aware that the Earth was round. In the 3rd century, the Greeks figured out the planet's diameter. The astronauts have seen the blue marble in space.

Flat Earth believers don't see beyond their own horizon, and all the evidence gets thrown out the window. If Earth were a flat disk, Flat-Earthers would invent weird physics to explain how things like gravity and lunar eclipses would work. The desire to see the universe as a more caring, human-centered place is one of the reasons many are motivated by religious belief.

COVID treatments cause COVID deaths

man hooked up to ventilator in a hospital

Alternative-health conspiracy theorists push mistrust in evidence-based medicine. (Image credit: Shutterstock)

There is a less-absurd-sounding conspiracy around COVID that is costing lives, but it is easy to mock.

People who have been diagnosed with the disease have refused effective drugs because they have put their trust in online "alternative health" sources who are often selling their own discredited treatments. Bryan Ardis, a former Chiropractor, has been spreading the idea that COVID-19 isn't caused by a virus, but by snake venom injected into certain people. There is no word on how the millions of people who have been exposed to COVID-19 have failed to notice the Pope's presence. Ardis sells his own line of supplements.

Reptilians run the U.S. government

A frilled lizard in Jakarta, Indonesia.

(Image credit: Dwi Yulianto/EyeEm via Getty Images)

There is a belief that the U.S. government is run by humanoids. People holding this belief have done a lot of harm. A man who blew up a bomb in downtown Nashville, Tennessee on Christmas Day 2020 wrote a friend about his belief in lizard people. Warner caused damage to 41 buildings and killed himself.

The idea of half-lizard, half-human beings has been around for a long time. British conspiracy theorist David Icke has been a key spreader of the "reptilian shapeshifters control the world" conspiracy. There are many conspiracy theories that overlap with anti-Semitism.

The death of Queen Elizabeth II gave a boost to the reptilian conspiracy theories. According to Politifact, Facebook flagged and removed multiple posts after the queen's death calling her a reptile and linking to strange videos that claimed the entire royal family is reptilian.