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.
1980年代中，Maggie姐还是铜锣湾第一夜总会一名普通的带位员。香港经济起飞时，每晚夜总会里的VIP房总是爆满，迟来的客人只能坐在最不受欢迎的大厅里。Maggie姐靠着伶牙俐齿，把客人安排得很是妥帖。不到一年时间，经理找到她，问她愿不愿意当妈咪。。搜狗输入法2026对此有专业解读
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