Every day, experts bombard us with their views on topics as varied as Iraqi insurgents, Bolivian coca growers, European central bankers, and North Korea’s Politburo. But how much credibility should we attach to the opinions of experts?
每天，专家们都对伊拉克叛乱、玻利维亚古柯种植、欧洲央行和北朝鲜政治局等各种各样的问题发表高见，但我们对他们的意见到底应该相信多少？