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Platforms, policy & societyPsychology & interventions
Inside the bizarre world of internet trolls and propagandistsJournalist Andrew Marantz spent three years investigating propagandists and online extremists, tracing how fringe conspiracy theories and hate speech go viral on social media platforms. He exposes how social media algorithms optimized for engagement enable propagandists to leverage emotion over truth, and documents the pipeline through…
Deepfakes & multimodalPlatforms, policy & society
How deepfakes undermine truth and threaten democracyDeepfakes use machine-learning technology to create fabricated audio and video of people doing or saying things they never did. Law professor Danielle Citron explores the dual threats: individual harm (non-consensual sexual deepfakes targeting women, especially minorities and journalists) and societal damage (eroding trust in…
Psychology & interventionsDetection methods
How technology can fight extremism and online harassmentYasmin Green, head of Jigsaw, presents two technological interventions addressing online harms rooted in human psychology. For radicalization: the "Redirect Method" (piloted 2016) uses online advertising to intercept users searching for extremist content (e.g., "How do I join ISIS?") and show them counter-propaganda videos from credible…
Psychology & interventionsFact-checking & verification
Why People Believe Fake News, Myths & Conspiracy TheoriesBrendan Nyhan surveys research on why people hold false beliefs about politics, health, and conspiracy theories despite exposure to corrective information. He identifies two core mechanisms: selective exposure (people seek out information matching their worldview) and selective acceptance (people dismiss contradictory information through…
Spread & networksBots & coordinated campaigns
The Truth About False NewsA presentation discussing findings from a large-scale longitudinal study of false and true news spread on Twitter (2006–2017). The research found that false news spreads further, faster, and more broadly than truth by orders of magnitude—not primarily due to bots, but because humans are more susceptible to sharing novel information, and…
Fact-checking & verificationPsychology & interventions
How to separate fact and fiction onlineMarkham Nolan, editor of Storyful, explains how journalists use open-source intelligence tools to verify content in the age of information overload. Through real-world case studies—including fake Hurricane Sandy photos and identifying locations in Syrian conflict videos—he demonstrates that truth-seeking requires human judgment combined…