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.

Researchers led by Itzhak Khait at Tel Aviv University have found that some plants produce audible, high-frequency sounds when they are stressed or damaged. The team tested tomato and tobacco plants and recorded ultrasonic clicks that arise during drought stress or after cutting. Sensitive microphones and acoustic analysis allowed detection of these sounds from as far as five meters, suggesting plants may broadcast information about their physical condition.

A new international nature fund set up under the Global Environment Facility aims to help developing countries meet the biodiversity targets agreed at the COP15 summit in Montreal. The fund’s creation was one of the most-contentious issues at those talks, prompting walkouts and repeated negotiations between wealthy and poorer nations. So far, only Canada and the United Kingdom have pledged money, leaving roughly $40 million still needed to capitalise the fund ahead of COP16 next year.

Meta, the company that owns Facebook and Instagram, says it will start asking users in the European Union for permission to show personalized advertising. The move follows regulatory rulings that challenged Meta’s data-collection methods for targeted ads. Rather than relying on a “legitimate interest” justification, Meta has conceded it must obtain explicit consent under EU data-protection rules before using people’s personal data to tailor ads on its platforms.

Linguists have long thought that social context shapes grammar: communities with many non-native speakers, like trade hubs, were believed to favor simpler, easier-to-learn systems, while isolated, homogenous groups develop dense, specialized grammatical rules. A new study compiled measurements across about 1,300 languages to test whether languages used mainly by “societies of strangers” indeed show reduced grammatical complexity compared with languages used in more stable, insider communities.