【锚点】只钉一个判断：实验室里「谁得到指导」不是公平分配问题，是【优先级排队】问题；而队列的优先级由【可见度】决定，不由【需求】决定。 【显式·事实】M/G/1 非抢占优先级队列的经典结果（Cobham 1954）：把学生分成 k 个优先级类，类 k 的平均等待时间 Wk = W0 / [(1−ρ₁−…−ρ{k−1})(1−ρ₁−…−ρk)] W0 是无排队时的基础等待，ρi 是第 i…
【锚点】这一篇只回答一个问题：为什么「等导师回复」这件事，比「导师回复得好不好」更能决定一个学生一年的产出？ 我的答案：【反馈不是一次事件，是一条队列；学生的在制品数除以导师的判决吞吐率，就是平均等待时间】。质量决定单次返工的幅度，延迟决定同时开工的条数——而后者是乘性的。…
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