We’ve grown so used to forecasting with blandly mechanical detachment that it can be jolting when our instincts struggle to take over, as they did when Goldman Sachs shares dove without warning on October 15. Considering the firm’s stock chart by-the-numbers, we expected higher prices. Had the charts failed to warn us of an important top? To be sure, our strong preference for technical analysis over fundamentals comes from having gotten ambushed too many times when we followed fact and logic into a dark alley. Still, when Goldman gapped $5 lower on the opening that day, we sensed that something had changed. Since then, our unease has only grown. The bank stocks have continued to fall, although » Read the full article