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.

In 2009 the Large Hadron Collider (LHC), a giant particle accelerator near Geneva run by CERN, was preparing to restart after upgrades. Scientists said the machine would smash protons together at very high energies to study fundamental particles and forces, potentially revealing phenomena such as the Higgs boson or signs of new physics. However, some members of the public expressed fear that the machine could produce catastrophic effects, including miniature black holes or other unknown dangers.

Researchers report that reef-dwelling hogfish have light-sensitive cells embedded in their skin, allowing the animals to sense brightness and adjust their colour without relying solely on eyes. The study, published in Nature, shows this skin-based photoreception can continue to influence colour change even after death. Hogfish live in Atlantic reefs and can shift hues in milliseconds. Those rapid changes aid camouflage, social signalling and may help with temperature regulation and attracting mates.

Brazil reported a major fall in Amazon deforestation in July: official figures say tree-clearing and burning dropped about 60 percent compared with the same month last year. The government and the environment minister attribute the decline to political changes and new administration policies, based on national monitoring systems. Scientists caution this reflects a single month and that short-term figures can be influenced by seasonal and reporting factors.

Researchers reviewing clinical trials have found little evidence that blue‑light filtering glasses provide the sleep or short‑term eye‑comfort benefits often claimed by makers and some retailers. The review pooled data from 17 randomized trials and reported no consistent short‑term reduction in visual fatigue from computer use, and it could not show clear benefits for sleep quality, vision performance, or long‑term retinal health.