１９世纪美国作家华盛顿·欧文写了一个短篇，题为《里柏大梦》。里柏其人某日下午在卡茨基尔山中入梦，一睡２０年，终于醒来时发现周围的世界变化很大，他竟成了个陌生人。如今假定有一个社会科学家也坠入里柏大梦，但只消睡上５年，醒来时也会发现在此期间社会科学界发生了 19th Century American writer Washington Irving wrote a short article entitled “Ripper’s Dream.” One day Rupiah entered the Catskill mountains in the afternoon, and when he slept for 20 years, he finally woke up and found that the world around him changed so much that he became a stranger. Now assume that a social scientist also fell in Raby dreams, but only sleep for 5 years, woke up will find that in the social sciences in this period occurred