Our example shows how reliable messaging can be leveraged to reduce the complexity of program-to-program interactions.

我们的例子说明了可靠的消息传递是怎样用来降低程序之间交互的复杂程度的。

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Remember last time, I said that there's different kinds of complexity in our code, and I suggested for simple branching programs, the amount of time it takes to run that program is, in essence, bounded by the number of instructions, because you only execute each instruction at most once.

但是这里有个很重要的点,记得上节课，我提过在我们的代码中，有不同种类的复杂度，而且我还说了对于简单的分支程序,运行这种程序需要的总体时间,大体上，是和指令的数目相关的,因为每个指令只会被执行最多一次。

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Complexity of program rules is another barrier.

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Published just a few months ago, the report concluded that the program funding and schedule estimates were overly optimistic in light of the complexity of the challenges facing the program.

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And because of the program's complexity, even the best produce their share of bug-ridden software.

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