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.

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.

Scientists presented results from the OPERA study showing artificial intelligence can analyze heart ultrasound scans in about one minute, compared with roughly 30 minutes for trained human experts. The project, led by the University of Glasgow in partnership with AstraZeneca and NHS trusts including Greater Glasgow & Clyde and the Golden Jubilee, demonstrated the AI’s ability to interpret echocardiograms quickly and consistently during a presentation at the European Society of Cardiology conference in Amsterdam.

Harvard astronomer Avi Loeb says researchers recovered small metallic spheres from the Pacific Ocean in June and that the material came from outside our solar system. Loeb connects the spheres to an object that reportedly struck Earth in 2014 and argues their composition and structure are unusual enough to suggest an extraterrestrial, possibly technological, origin. The claim is presented as a potential example of interstellar material reaching Earth.

Researchers presented new findings at the European Society of Cardiology meeting showing that laughter therapy can improve some measures of heart health in people with coronary artery disease. In the study, patients took part in guided laughter sessions while researchers measured inflammation markers and cardiovascular performance before and after. The reported results included lower inflammation and improved indicators of heart function after the laughter interventions.