The stock market has an ugly habit of rallying at the worst possible times. Yesterday, for instance. Western Civilization absorbed a blow from which one of its key tenets, freedom of speech, may never recover. And although we shouldn’t expect Wall Street to miss a beat in its daily scramble to multiply money that has fallen from trees, it would be nice if the markets would occasionally defer to a global mood that, far from being ebullient, verges on fearful.  The takeaway for investors is that no one ever went broke underestimating the cynicism of Wall Street.