Gary Gordon submits: What if determining stock market direction was as simple as wetting your finger in the outdoors and holding it up to the sky? A cool breeze telling you if the wind was coming out of the northwest?
Not surprisingly, it has never been quite that easy. While we have trendlines that we base on moving averages — 50-day, 100-day, 200-day — the predictive value of price change information has always been imprecise.
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