“…I truly enjoyed reading Doug Sellman's paper [1]. These types of paper, which summarize the literature briefly and, even more importantly, review it critically, are needed, especially right now, as there are increasing numbers of scientific outlets for papers and it becomes increasingly difficult to gain an overview of the field-not only for young scholars, who have just entered the field, but also for 'old and wise' researchers who have been in the field for a long time.…”