A preprint study released by researchers from Imperial College London, Stanford University and the Internet Archive reveals that roughly 35 percent of websites launched between 2022 and 2025 rely on AI-generated or AI-assisted content. The analysis shows that AI‑written pages carry a markedly higher positive sentiment, making the web feel artificially upbeat. The same work finds that AI content reduces ideological diversity, while several expected side effects—such as a rise in misinformation or a drop in external linking—did not materialize. The findings challenge common assumptions about the impact of large language models on online discourse. Read more →