I agree with the authors premise and argument but the data visualizations are not well done, and I'm confused about the conclusions he draws from them. For starters, it's unclear why he draws a line at 2012, when in many of the graphs the slope gets steeper at 2010 instead, and in fact that's where the percentage increase calculations start from as well. That vertical line at 2012 is misleading and confusing. Also, i…
As for why these trends exist, one of the interesting things is that these are present in all of the anglosphere. Can we think of another explanation? What else has changed on a global scale in the last couple of decades?