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.

Elizabeth Diller is a leading architect and founding partner of Diller Scofidio + Renfro, a firm known for projects that blur art, performance, and architecture. Trained at Cooper Union, she moved from visual art into architecture and co-authored the influential book Flesh, which challenged traditional ideas about buildings and spatial experience. Her work—including the High Line, the Blur Building, and The Shed—emphasizes experimentation, collaboration, and attention to how people use public space.

Mick Jagger, the longtime frontman of the Rolling Stones, has been sharing unexpectedly ordinary moments from his tour life on Instagram. Instead of the usual glamorous or staged celebrity photos, his feed shows mundane outings—visits to local attractions, bars, strip malls and well‑known landmarks. He told The Washington Post that these images are less about spectacle and more about getting a feel for places, and he treats the account like a simple visual diary.

South Korea's flag carrier Korean Air will begin weighing passengers and their carry-on luggage at Gimpo and Incheon airports. The Ministry of Land, Infrastructure and Transportation has required the checks to collect actual passenger weights for aircraft weight-and-balance calculations. Airline officials say measuring passengers helps crews calculate load distribution, takeoff performance, and fuel needs more accurately than relying on assumed average weights. Officials emphasize it is about technical calculations, not personal data collection.