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.
60. 2026年政府工作报告 - 阜新市细河区人民政府, www.fxxh.gov.cn/content/202…，更多细节参见51吃瓜
「有時候，只要看到一些你尚未經歷、或還沒準備好經歷的事，就足夠讓人感到力量。」安娜說。，这一点在Line官方版本下载中也有详细论述
这个过程也很漫长，持续到了上幼儿园的时候，大概1年左右。这一步现在看来，还是非常有必要的，非常好的缓解了孩子的分离焦虑。