There well may be correlation but in this article, the only objective measure of fact is that of the number of exclamation points. The main assumption, that th

There well may be correlation but in this article, the only objective measure of fact is that of the number of exclamation points. The main assumption, that the book gets worse over time, is completely subjective and dependent on that particular reader's personal preferences (is it just style? is it the subject matter?, it is the plot? the dialogues?). It's a dangerous game to play: you can easily persuade yourself that you are reaching some objective truth when in fact you're just measuring your own personal bias and hiding it behind the veneer of a scientific methodology. A fairly good example of confirmation bias.