Video•Feb 19, 2026
Bad Bot Problem - Computerphile
The video explains how social media ‘botnets’—operator-controlled networks of fake accounts—are increasingly using large language and image models to mimic human behavior, generate original posts, images and tailored comments, and coordinate narratives. Using a local demo platform, the presenter shows bots producing a convincing post and threaded comments to gaslight users into believing a fabricated ‘aliens invading the UK’ event. The clip contrasts older rule-based bots, which were easier to spot, with modern AI-driven bots that interpret context, craft nuanced replies and amplify false content. It highlights how automation now handles content selection, generation and engagement to make disinformation seem authentic and viral.
