投资者可能会制造一个股票市场泡沫，鼓励更为无知的投资者们将他们的个人退休账户集中投于股票市场 — — 一旦泡沫破裂就把危险留给他们。
Investors could create a stock-market bubble, encouraging even more naïve investors to concentrate their personal retirement accounts in the stock market – and leaving them dangerously exposed when it crashes.