translation.en: And finally you get your Ph.D., where it turns out you know a tremendous amount about almost nothing.  What's really disturbing is the trend line that goes through that because, of course, when it dips below the zero axis, there, it gets into a negative area.
translation.zh: 最后你来看看博士生，你会发现 他们感兴趣的东西几乎都没了。 在你沿着图表的线条在看下去的话，真正让人不安的是 在零点的下方的一个点， 它是在负值区域的。