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Show HN: The Daily FM – Turn any source into a daily podcast

I built The Daily FM because I wanted a daily summary of the latest AI news sent to my podcast app and then realized it was useful in summarizing other stuff: - Any blogs, websites, or X handles - The top Hacker News stories with comments - Long podcasts (think Lex Fridman) - Changes in state/federal legislation It pulls your sources, writes a script with a frontier-ish model of your choice, runs it through TTS (MAI-2 studio voices), and publishes a standard RSS feed. You can also combine severa

2026-07-23 原文 →
AI 资讯

Why two O(n²) loops can run 15× apart

Two nested loops can do the same work, have the same O(n²) complexity, and still run around 15× apart. A visual explainer on why: the RAM model, the memory wall, cache lines, locality, L1/L2/L3, prefetching, data layout and false sharing. It also covers how the timing difference between a cache hit and miss became the side channel behind Spectre and Meltdown. submitted by /u/Ok_Marionberry8922 [link] [留言]

2026-07-23 原文 →