The best way to learn to spot a conspiracy theory is to make one yourself.
Pick a real news story. On the next step you'll choose who's behind it and why. Then walk through the four moves real conspiracists use, with a debunk on every step.
Choose whichever real-feeling headline your imagination will run wildest with. Don't overthink it.

Scientists have identified Burgessomedusa phasmiformis as the oldest known swimming jellyfish, based on fossil specimens recovered from the Burgess Shale in Canada. These animals lived more than 500 million years ago during the Cambrian period. Researchers classify them as medusozoans, the group that includes modern jellyfish, and say the fossils provide direct evidence that jellyfish-like animals had already evolved by that time.

A 40-year-old British doctor touring South Africa was shot and killed in Cape Town after turning into Ntlangano Crescent during violent street protests, authorities said. The incident occurred last Thursday when the general practitioner took a different route after leaving the airport. Multiple unidentified suspects confronted him and opened fire; he did not survive. South African police confirmed the death and said they were investigating the circumstances and seeking the attackers.

China’s state-run Global Times published an editorial urging the British Museum to return Chinese artifacts just ahead of a visit by UK Foreign Secretary James Cleverly. The piece accused the museum of holding items acquired through improper channels and called some pieces “stolen.” The British Museum’s collection includes more than 23,000 Chinese objects, and the editorial named examples such as the painting The Admonitions of the Instructress to the Court Ladies and Liao tri-coloured luohan statues.

A recent study in New York, conducted between April 2019 and February 2020, tested whether recorded music could reduce pain in newborns during routine heel-prick blood tests. Researchers enrolled 100 infants and randomly assigned about half to listen to Mozart’s Lullaby before and during the procedure while the other infants received standard care without the music. Clinicians measured pain using standard scoring tools at baseline, during the prick, and after the procedure to compare responses.