Nobel-winning economist Thomas Schelling tellingly wrote in his 1987 book, Managing Nuclear Operations, how war-gaming has a quality that qualitatively separates it from SOP analysis and can generate insights not possible through cost-benefit reflection: 'to draw up a list of things that would never occur to [the purely analytical thinker]'. Liberal arts provide the knack for critical thinking and the kick to infer intent behind decisions, unobvious patterns, less-evident meanings, etc.