【Hacker News搬运】效率太高会让一切变得更糟（2022）

hackernews

Title: Too much efficiency makes everything worse (2022)

效率太高会让一切变得更糟（2022）

Text:

Url: https://sohl-dickstein.github.io/2022/11/06/strong-Goodhart.html

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Post by: feyman_r

Comments:

remram: Those are great points! Another related law is from queuing theory: waiting time goes to infinity when utilization approaches 100%. You need your processes/machines/engineers to have some slack otherwise some tasks will wait forever.

remram: 这些都是很好的观点！另一条相关定律来自排队论：当利用率接近100%时，等待时间将趋于无穷大。您需要您的流程；机器；工程师们要有一些懈怠，否则一些任务将永远等待。

raister: This reminds me of Eli Goldratt's quote: "Tell me how you measure me, I will tell you how I behave."

raister: 这让我想起了Eli Goldratt；引述：&quot；告诉我你是怎么衡量我的，我会告诉你我的行为&“；

dooglius: Overfitting may be a special case of Goodhart's Law, but I don't think Goodhart's Law in general is the same as overfitting, so I don't think the conclusion is well-supported supported in general; there may be plenty of instances of proxy measures that do not have issues.<p>I'll also quibble with the example
of obesity: the proxy isn't nutrient-rich good, but rather the evaluation function of human taste buds (e.g. sugar detection). The problem is the abundance of food that is very nutrient-poor but stimulating to taste buds. If the food that's widely available were nutrient-rich, it's questionable whether we would have an obesity epidemic.

dooglius: 过度装配可能是Goodhart的一种特殊情况；法律，但我不这么认为；我不认为古德哈特；s定律一般与过拟合相同，所以我不这么认为；我认为这一结论总体上没有得到很好的支持；可能有很多代理措施没有问题<p> 我；我也会对这个例子吹毛求疵肥胖：代理不是；t营养丰富好，而是对人体味蕾的评价功能（如糖检测）。问题是食物丰富，营养贫乏，但刺激味蕾。如果食物；它广泛使用，营养丰富；我们是否会出现肥胖症流行，这值得怀疑。

shahules: Can't agree with you more my friend. Another point on a philosophical level is efficiency or optimization in life, which always focuses on tangible aspects and ignores the greater intangible aspects of life.

shahules: 可以；我的朋友，我不太同意你的观点。哲学层面的另一点是生活中的效率或优化，它总是关注有形方面，而忽略了生活中更大的无形方面。

eru: Just add some measure of robustness to your optimization criterion. That includes having some slack for unforeseen circumstances.

eru: 只需在优化标准中添加一些鲁棒性度量。这包括为不可预见的情况留出一些时间。