不仅仅是你的生产力收到影响，而且你会招致灾难性的错误。

Not only is your productivity affected, but you can also make catastrophic mistakes.

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有时系统中有一点致命的故障或一点灾难性的错误都会带来巨大的损失。

Sometimes, a little fatal breakdown of the system, or a disastrous error could bring us an enormous amount of damage and loss.

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比起历史上的大国双雄，中美有一个优势：他们目睹了20世纪灾难性的错误。

China and America have one advantage over history's great-power pairings: they saw the 20th century go disastrously wrong.

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Because it says, your program will still give you a value, but it may not be what you intended, and you can't always tell, and that may propagate it's way down through a whole bunch of other computations before it causes some catastrophic failure.

因为这意味着，你的程序依然会返回一个值，但是这个值可能不是你想要的，你可能还分辨不出来，而且这种情况会传播,结果会沿着正果计算过程传播下去,直到产生一个灾难性的错误。

麻省理工公开课 - 计算机科学及编程导论课程节选