▲全球 81 亿人中， 84% 的人从未用过 AI，而只有 0.3% 的用户愿意为 AI 付费｜图片来源：https://global-ai-adoption.netlify.app/
Competence is not writing 576,000 lines. A database persists (and processes) data. That is all it does. And it must do it reliably at scale. The difference between O(log n) and O(n) on the most common access pattern is not an optimization detail, it is the performance invariant that helps the system work at 10,000, 100,000 or even 1,000,000 or more rows instead of collapsing. Knowing that this invariant lives in one line of code, and knowing which line, is what competence means. It is knowing that fdatasync exists and that the safe default is not always the right default.
，这一点在新收录的资料中也有详细论述
Strict no-logging policy so your data is secure
10 0008: mul r6, r0, r1
圖像加註文字，週六晚些時候，在一些地方——例如這張來自經核實視頻的截圖中所示的地點，拍攝於伊朗中部城市卡賈爾——可以看到人群慶祝伊朗最高領袖哈梅內伊的去世。圖像來源，IRINN