Mathieu Lavigne

@mathieulavigne.bsky.social

Political scientist studying social media, misinformation & elections at McGill

Great discussion with @rorywh.bsky.social on our report on conspiratorial claims in Canada’s online ecosystem. Analyzing 14M posts across 4 platforms, we find: 1. Supply is highly concentrated 2. Conspiracy content primarily circulates on X 3. High awareness, limited belief among the public

Rory White@rorywh.bsky.social · 5mo ago

The Media Ecosystem Observatory has found that just 100 accounts in Canada are responsible for 68% of posts promoting conspiracy theories. But they are having an outsized impact on local governments. Read my latest: www.nationalobserver.com/2026/02/25/n...

Glad to have contributed to this report on the information ecosystem during the 2025 Canadian election. It highlights key challenges and potential actions to protect our elections amid GenAI-powered disinformation, political segmentation, and reduced news visibility on social media platforms.

Media Ecosystem Observatory@meo-cdmrn.bsky.social · 10mo ago

🚨Our 2025 Federal Election report is here and it should serve as a warning for Canada to act now to protect future elections. Canada’s 2025 federal election upheld its integrity, but exposed a digital ecosystem under mounting strain. Read on to learn about our key findings 🧵

The Canadian Information Ecosystem during the 2025 Federal Election

WEEKLY UPDATE: WEEK 6 OF CANADA’S 45TH FEDERAL ELECTION🚨 We open this final weekly update with 6 key reflections from our research team on the 2025 Canadian federal election. These are preliminary impressions—our full post-election report will offer deeper insight. 🧵

BildBildBild

Over 25% of Canadians are being exposed to more sophisticated and more politically polarizing fake content. These ads don’t just defraud individuals—they risk undermining trust in journalism and the democratic process, spreading misleading political content at a critical time ⚠️

Bild

It’s official: Canada’s 45th federal election is happening on April 28. With rising threats of foreign interference & information manipulation, protecting our democracy has never been more urgent. That’s why the Canadian Digital Media Research Network (CDMRN) is stepping in. 🧵

Bild

Another thing bothering me about the Zuckerberg statement -- the assertion that fact-checkers have “destroyed more trust than they created." FCers are obviously imperfect and have made mistakes, but most of what people hear about them is ax-grinding by conservative elites, not fair-minded critiques