I spent over 500 hours researching and writing this article. Those 500 hours were spent reading through dozens of books/studies in 10+ fields (history, economics, technology, philosophy of science, manufacturing, management, sociology, investing, innovation). I spent so much time because the topic was both much more interesting and complicated than I originally thought. And, as is the case with all of my writing on Medium, I use the blockbuster philosophy. This means I don't click publish unless I think it is one of the best articles that has been written on the topic.
As a result of going through the research process, I will never think about productivity in the same way. What I learned blew my mind over and over, and I hope it does the same for you as the reader.
And as a said, those people are free to go live by their own standards.