Trend-following is not such a good model. It’s simply eroded. Things change and being able to adjust is what made Mr. Simons so successful. “Statistic predictor signals erode over the next several years； it can be five years or 10 years. You have to keep coming up with new things because the market is against us. If you don’t keep getting better， you’re going to do worse.

国际政治是一项残酷而危险的事务，而且很可能继续保持这种状态。

最深刻的洞见往往来自意想不到的地方。

我不是政治家，我只是一个关心的公民。