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<div style="display: none; max-height: 0px; overflow: hidden;">Cognition has announced Windsurf Codemaps, an AI-annotated structured map of codebases powered by SWE-1.5 and Claude Sonnet 4.5 </div>
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fresearch.google%2Fblog%2Fexploring-a-space-based-scalable-ai-infrastructure-system-design%2F%3Futm_source=tldrwebdev/1/0100019a53fea154-193be353-e29b-4a6d-bda4-8096860f1d94-000000/vOVsaFmf3kChnk6g_uIeCes_qainjDIn_3w18o8pCnA=430">
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<strong>Exploring a space-based, scalable AI infrastructure system design (6 minute read)</strong>
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Project Suncatcher is a Google moonshot exploring the potential of scaling AI compute in space using solar-powered satellite constellations equipped with TPUs and free-space optical links. The project tackles problems like achieving data center-scale inter-satellite links, controlling tightly-clustered satellite formations, giving radiation tolerance to TPUs, and achieving economic feasibility with reduced launch costs. Early research suggests that space-based ML compute is viable.
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<strong>Frozen String Literals: Past, Present, Future? (23 minute read)</strong>
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This article goes over the history, present state, and potential future of frozen string literals in Ruby. It explains how Ruby strings are mutable, unlike in many other languages, and the tradeoffs between mutable and immutable strings. A new approach is proposed using "chilled strings" to emit deprecation warnings.
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<strong>What is a Manifold? (10 minute read)</strong>
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Manifolds are mathematical spaces that appear Euclidean when viewed locally, similar to how the Earth seems flat on a small scale. This concept revolutionized mathematics by treating space as an abstract object, enabling the rigorous study of higher dimensions and the development of modern topology. Mathematicians use "charts" and "atlases" to translate regions of manifolds into familiar Euclidean space, allowing the use of calculus and other techniques to analyze their properties.
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<strong>Apple Vision Pro's Persona Avatars Are Evolving Fast (10 minute read)</strong>
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Apple Vision Pro's most compelling feature is the realistic "Persona," a 3D avatar of the user created through a scan using Gaussian splatting.
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<strong>By the power of grayscale! (24 minute read)</strong>
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The Grayskull library is a minimal computer vision toolkit written in C that uses grayscale images and fundamental algorithms to perform image processing tasks like filtering, thresholding, blob detection, keypoint detection, and object detection using LBP cascades.
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<strong>Chaining ffmpeg with a Browser Agent (4 minute read)</strong>
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By integrating FFmpeg as a WebAssembly module within a browser agent, complex media processing can be executed serverlessly and statelessly within a workflow, turning FFmpeg into a composable API accessible as a single step.
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<strong>Full Text Search Shenanigans (9 minute read)</strong>
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Bloom filters can be used for full-text search, but only for very small document sets, as the technique's lack of information sharing between filters makes it less scalable.
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