This month, OpenAI announced their Codex app and my coworkers were asking questions. So I downloaded it, and as a test case for the GPT-5.2-Codex (high) model, I asked it to reimplement the UMAP algorithm in Rust. UMAP is a dimensionality reduction technique that can take in a high-dimensional matrix of data and simultaneously cluster and visualize data in lower dimensions. However, it is a very computationally-intensive algorithm and the only tool that can do it quickly is NVIDIA’s cuML which requires CUDA dependency hell. If I can create a UMAP package in Rust that’s superfast with minimal dependencies, that is an massive productivity gain for the type of work I do and can enable fun applications if fast enough.
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如果说创作中的塔可夫斯基是尖锐、执拗、绝不妥协的，那么《殉道学》则让我们看见，流亡中的他成为一个被思念包裹、满是脆弱和柔软的父亲和游子。在生命的最后十几年里，对家人的牵挂，尤其是对小儿子安德留沙的思念，成为日记中最动人、也最让人心酸的内容，这些文字与他创作中的犀利判若两人。
Imagine a world in which you can do transactions and many other things without having to give your personal information. A world in which you don’t need to rely on banks or governments anymore. Sounds amazing, right? That’s exactly what blockchain technology allows us to do.