17:52, 27 февраля 2026Экономика
"We have to try and test to find this optimisation of friction, of back-driveability," says David Kehr, president of humanoid robotics. "It's really a big puzzle."
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发生在我外婆身上的故事，OpenAI CEO萨姆·奥特曼很早就预测到，这位科技新贵去年就披露过ChatGPT的年龄使用情况，甚至用它作为对竞争对手的宣战：
这种压力也延续到了第四季度。财报显示，在第四季度，瑞幸总净收入同比增长32.9%至127.77亿元，但净利润同比下滑39%至5.18亿元，GAAP营业利润率较2024年同期下滑4.1个百分点。净利润率从8.8%降至4.1%；非GAAP净利润6.99亿元，同比下滑25.5%。即便全年营业利润率维持在10.3%，但自营门店利润率从2024年的19.0%微降至17.8%，第四季度自营门店店级运营利润率更是从19.8%下滑至15.0%。
These optimizations are difficult to implement, frequently error-prone, and lead to inconsistent behavior across runtimes. Bun's "Direct Streams" optimization takes a deliberately and observably non-standard approach, bypassing much of the spec's machinery entirely. Cloudflare Workers' IdentityTransformStream provides a fast-path for pass-through transforms but is Workers-specific and implements behaviors that are not standard for a TransformStream. Each runtime has its own set of tricks and the natural tendency is toward non-standard solutions, because that's often the only way to make things fast.