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The reactor item is correctly credited to Casey Crownhart. The geoengineering passage is credited to James Temple and framed as experts' view. Publication by MIT Technology Review's The Download is accurate.","excerpt":"This article is from The Spark, MIT Technology Review’s weekly climate newsletter."},{"dimension":"summary","status":"pass","explanation":"The reading leads with the actor and the development, explaining thorium as an alternative to uranium. It preserves Crownhart's thesis about the renewed appetite for abandoned technologies and states the generation-versus-capacity comparison accurately. Solar geoengineering is not explained, but it is a secondary item and does not block understanding. The title and question are reasonable.","excerpt":"China has now surpassed France in terms of generation, though not capacity; it still lags behind the US in both categories."},{"dimension":"date","status":"pass","explanation":"May 1, 2025 matches the UTC day of originalPublished. The modification time precedes publication. Later related-story blurbs in the Deep Dive section, such as the OpenAI math findings, are not used. There is no hindsight framing. The page is a publisher page, so no archive disclosure is needed.","excerpt":null},{"dimension":"support","status":"pass","explanation":"All claims are grounded in the source and keep its hedges ('reportedly', 'experimental'). The reading notes the account is reported, not demonstrated. The limitations about missing performance data are fair. 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