自中国去年4月实施相关出口限制以来，尽管北京已允许大量稀土出口恢复，但海关数据显示，这类材料运往美国的货流仍十分稀少，未因去年10月中美关系缓和而明显回升。
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.
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而据公开数据显示，xAI 初始的 12 位联合创始人中已有 7 位在不到三年内离开。