"As was the case in Iraq, the reality is that everything in Afghanistan is hard.

VOA: special.2010.06.26

There was a paper that I wrote with a colleague in globalization and health, and this quote that I--that I'll show you is from that and I'll read it in case it's a little hard to see.

这篇论文是我和一位,研究全球化和健康的同事一起写的,它引用了,我给你们看的就是选自其中,我会给你们念,它不太容易看到

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The answer is I can't. OK, in the simple case of integers I can, but in the case of something more complex like faces or fingerprints or passwords for that matter, it's hard to design a hash function that has completely even distribution, meaning that it takes any input into exactly one output spot.

答案是我不能，好吧,在简单的整数的例子中,我可以做到，但是在一些更复杂的场景中,比如面部，指纹，密码相关的问题中，很难设计一个哈希函数具备完全平均的分配,也就是说，做到对任一输入，可以准确地得到相应的唯一输出,因此在一个哈希问题中。

麻省理工公开课 - 计算机科学及编程导论课程节选

But if you were to defend the hard pass, if you were to defend the mountains, then if he chooses the easy pass, he gets both battalions in and if he chooses the hard pass, he gets no battalions in. So in this case, easy is better.

但是如果你选择防守崎岖之途,即你要低于高山巨岭,而他却选择的是平坦之途,他将兵力全存,而要是选崎岖之途,他将全军覆没,这样来看,选择平坦之途要好些

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