Well, you'll know when it crashes, that doesn't help you very much, but you can't always tell whether something's stuck in an infinite loop or whether it's simply taking a long time to compute.

好，你将学到它在什么时候会崩溃，这对你帮助并不大，但是你不能辨别出到底是在一个循环中,有什么东西卡住了呢,还是程序需要很长的时间来计算一个结果呢。

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Reality check: Rather than being a reason to dismiss a bear market, all this explains why financial crashes are always unexpected.

CNN: ?>?magazine

In history, such crashes have always produced economic traumas of some kind, generally a combination of banking collapses, corporate bankruptcies, accounting scandals and waning confidence among consumers and investors.

ECONOMIST: More a question of psychology than economics

It has always been prone to panics, crashes and bubbles (in Victorian times this newspaper was moaning about railway stocks, not house prices).

ECONOMIST: The world economy