The WasThatTrue blog

Guides, research, and thinking on misinformation, media literacy, and fact-checking.

Research
Why YouTube Is the World's Most Underrated Misinformation Platform

32% of US adults get news from YouTube regularly. But unlike social media, very few viewers check the claims they hear.

Fact-checking guide
What Does "Contested" Mean? How WasThatTrue Labels Uncertain Evidence

Not every claim is simply true or false. When credible studies disagree, forcing a verdict is dishonest. Here's how we handle it.

Product
How WasThatTrue Sources Its Evidence: Behind the Verdict

A transparent look at how the extension retrieves, ranks, and presents source material for every fact-check.

Fact-checking guide
Lateral Reading: The Verification Habit That Beats Reading Deeply

A short skill borrowed from professional fact-checkers that works on websites, articles, and YouTube videos.

Research
Why AI Chatbots Fabricate Sources, and How to Spot a Fake Citation

Hallucinated citations are a structural feature of how language models work, not a passing bug. Here is what that means and how to protect yourself.

Product
User-Triggered Fact-Checking: Why You Decide What Gets Checked

WasThatTrue waits for you to click instead of scanning every claim. Here is why user-triggered fact-checking beats automatic moderation on YouTube videos.

Fact-checking guide
How to Fact-Check a Podcast or Long Interview

A three-hour episode can pack dozens of unsourced claims into one sitting. Here is a practical way to check them, one claim at a time, without losing the thread.

Research
Why a Claim You Hear Twice Starts to Feel True

The illusory truth effect makes repeated claims feel true, even false ones. Here is the psychology behind it and how to protect your judgment.

Fact-checking guide
How to Fact-Check Health Claims on YouTube

Supplements, diets, and miracle cures fill YouTube. Here is a practical way to check a health claim against real medical evidence before you act on it.