The 20th century, the last hundred years, is riddled with disastrous examples of times that one school or the other tried to explain the past or predict the future and just did an awful, awful job, so the economics profession has acquired some degree of modesty.
20세기, 즉, 지난 100년은 한 학파가 과거를 설명하거나 미래를 예측하려다가 실패한 예들로 가득 차 있습니다. 그래서 경제학자들은  어느정도 겸손해졌습니다.