Anthropic had refused Pentagon demands that it remove safeguards on its Claude model that restrict its use for domestic mass surveillance or fully autonomous weapons, even as defense officials insisted that AI models must be available for “all lawful purposes.” The Pentagon, including Secretary of War Pete Hegseth, had warned Anthropic it could lose a contract worth up to $200 million if it did not comply. Altman has previously said OpenAI shares Anthropic’s “red lines” on limiting certain military uses of AI, underscoring that even as OpenAI negotiates with the U.S. government, it faces the same core tension now playing out publicly between Anthropic and the Pentagon.
sciencenews.org
Quadtree-based image compression formats and level-of-detail systems all work this way. Satellite imagery, terrain rendering, and geographic information systems use quadtree decomposition to serve data at varying resolutions: zoomed out, you see large coarse blocks; zoomed in, you see fine-grained tiles. The same principle extends to three dimensions (octrees) for volume rendering and 3D spatial indexing.，详情可参考91视频
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