One of my relatives works in construction. Bags of material needed to make concrete have lately been piling up at his job site because no one is mixing the stuff. That's yet another sign of the slowing economy and the impact it's having on people. Today's expected dramatic selloff in the stock market is another.

Investors used to gasp when they saw a triple-digit decline in the Dow Jones industrial Average. Now, as one of my friends recently noted, it's "another day at the office." It's not that people like huge declines; they have grown accustomed to living in a constant state of dread.

Today is no exception. Trading, which was limited in the pre-market, is going to be awful. Call it "Frantic Friday" or "Freaky Friday." Fear is ruling the day again. Investors are not acting rational. Blah, Blah, Blah. You have heard it all before. The only questions is why the world appears to be coming to an end today.

My colleague Peter Cohan points out that markets in Asia and Europe have been tanking. Even Canada, which largely avoided the subprime crisis, is guaranteeing up to C$218 billion in bank debt to match the bailouts offered by other countries. Remember, Canada's banks were recently recognized as being the most stable in the world. This underscores the nervousness of investors.