A city divided by a gap in healthy life expectancy
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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.
但无论如何，如果这条路跑通，苹果最恐怖的「生态护城河」将顺势流淌进 AI 时代，与之相随的，是数十亿用户的肌肉记忆和操作习惯。这对于任何一家致力于打造 AI 硬件的厂家来说，都是致命威胁。