How many times and in how many situations lately have we heard the familiar refrain we’ve never seen anything like this? Whether the subject is politics, housing, jobs, stocks, sovereign debt, corporate ethics, or American wars, experts find themselves unable to find comparison or remedy. Having no historical frame of reference makes us anxious. We naturally prefer familiarity over the unfamiliarity. We like trends and historical context on which to base our projections. We do not like unproven ideas.