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Урсула фон дер Ляйен. Фото: Valentyn Ogirenko / Reuters
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不是因为算力不重要，而是模型和模型之间的差距，正在以肉眼可见的速度收窄。大模型之间当然有差异，但对于绝大多数企业的实际需求来说，它们已经"够用了"。当"够用"成为基准线，比拼谁的模型更聪明就变成了一场没有终点的消耗战，边际的改善却极为有限。
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.