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.
从财务与经营逻辑看,魔法原子呈现出硬科技初创公司典型特征:高融资、高研发、高投入、长周期、低短期盈利。
,这一点在PDF资料中也有详细论述
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必须两面看待小龙虾的价值与风险如果你只看到小龙虾能帮你干活,却没看到它可能带来的风险,那你就还没真正理解它。