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.

Researchers studying more than 15,000 people report that higher physical fitness is linked to a lower chance of developing atrial fibrillation, an irregular heartbeat that raises the risk of stroke fivefold. The study, presented at the ESC Congress 2023, used treadmill exercise tests to estimate fitness in metabolic equivalents (METs) and followed participants over time to see who developed heart rhythm problems or strokes.

Comedy writers and performers say telling a good joke is harder than it looks: timing and delivery can make or break a punchline. Jokes work by surprising the listener with an unexpected twist, clever wordplay, or absurd imagery that creates a vivid mental picture. Short, sharp jokes often land best because they set up an idea quickly and then flip it — for example, an Edinburgh Fringe-winning pun: "I started dating a zookeeper, but it turned out he was a cheetah."

Sarah Ogilvie’s The Dictionary People tells the story of the people who built the Oxford English Dictionary by collecting words, quotations, and regional usages. Ogilvie, a linguist, shows that the OED was not made by a single team in isolation but by thousands of volunteers who sent slips of paper and examples from newspapers, books, and everyday speech. The book explains how this wide network of contributors helped record English across time and place.