I’ve been to several scientific conferences at which Professor Kahneman has spoken; and, when Daniel Kahneman talks, people listen. I am invariably among them. So I took special notice of his answer to a fascinating challenge to put to him not long ago by an online discussion site. He was asked to specify the one scientific concept that, if appreciated properly, would most improve everyone’s understanding of the world. Although in response he provided a full five-hundred-word essay describing what he called “the focusing illusion,” his answer is neatly summarized in the essay’s title: “Nothing in life is as important as you think it is while you are thinking about it.”
Daniel Kahneman sets them straight in Thinking, Fast and Slow: ‘If you care about being thought credible and intelligent, do not use complex language where simpler language will do. My Princeton colleague Danny Oppenheimer refuted a myth prevalent among undergraduates about the vocabulary that professors find most impressive. In an article titled “Consequences of Erudite Vernacular Utilized Irrespective of Necessity: Problems with Using Long Words Needlessly”, he showed the couching familiar ideas in pretentious language is taken as a sign of poor intelligence and low credibility.
“To withdraw now is to accept a sure loss,” he writes about digging oneself deeper into a political hole, “and that option is deeply unattractive.” When you combine this with the force of commitment, “the option of hanging on will therefore be relatively attractive, even if the chances of success are small and the cost of delaying failure is high.”