One of the most important things you can do as an investor is to try to seek out smart arguments that lay out the opposite side of the views that you hold. In other words, if you’re bullish, you should seek out smart bears, and vice versa.
And if you’re so sure that stocks are just going to keep going up and that anyone who voices caution is a moron — then at least think about this
Someday, financial markets will again decline. Someday, rising stock and bond markets will no longer be government policy – maybe not today or tomorrow, but someday. Someday, QE will end and money won’t be free. Someday, corporate failure will be permitted. Someday, the economy will turn down again, and someday, somewhere, somehow, investors will lose money and once again come to favor capital preservation over speculation. Someday, interest rates will be higher, bond prices lower, and the prospective return from owning fixed-income instruments will again be roughly commensurate with the risk.
For More: Bullish on Stocks