The most interesting explanation I heard was that economics has become more interesting, because it no longer seems to be a finished and closed discipline. It is no fun to read a book or article that says that economic forecasting is best left to computer models that you, the general reader, would need a Ph.D. to understand.
对此我听到的最有趣的解释是经济学之所以显得更有趣，是因为它似乎不再是一门完美和封闭的学科。如果有一本书告诉你说经济预测最好交由电脑模型去完成，而作为一个普通读者，你必须拥有一个博士学位才能搞懂这些模型，那该是多么沉闷乏味啊。