Bummer

According to an on-line article in Slate:

The Dow looks like a bubble ready to pop. For the first time since October of last year, the Dow Jones industrial average surpassed the 10,000 mark yesterday. The benchmark index has been on a rapidfire increase lately as it has gained a whopping 53 percent in a mere seven months. But long-term measures suggest the stock market is "in a new bubble", and it's likely that it will move below and above the 10,000 mark for several years to come. That would hardly be a rare occurrence. As the Wall Street Journal points out, the Dow has moved above the 10,000 mark 25 times before. According to one estimate, the "reasonable valuation" for the Dow today would be a bit more than 7,800.