What makes this crisis of burning interest to financial historians is the knowledge that we are witnessing a real-time experiment with not one but two theories about the Depression.

这场危机之所以会引起金融史家的浓厚兴趣，是因为我们知道，我们正在见证关于萧条的两套理论的实时实验。

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Rich Dietman: Talk about serious mental illness for a minute, and depression, anxiety — things that go beyond just an occasional sad day or two.

谈一谈严重的心理疾病，压抑和焦虑，那些超出了偶尔悲伤一两天的情况。

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Two years later, just when the bubble was about to burst, the SEC removed the Depression-era protections against abuses by short sellers of securities.

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