If the economy's so bad, why is it so good? Crashing dollar, twin deficits, rising gold, foreigners selling our assets -- the list goes on and on for members of the negative and pessimist mainstream media. But unfortunately for them, and fortunately for the rest of us, the economy is in excellent shape. According to the latest report from the Commerce Department, real gross domestic product rose 3.9 percent in the third quarter of 2004. GDP is still the best overall measure of the economy -- that is, outside of the stock market, which is always smarter than the bean-counters....