@Scepticalscribe @VulchR I had a teacher today make a point that "most people now don't know how to read nonfiction." What do you think of this? I know you both are, or at least used to be, academic researchers, so have you had this experience with students?
Hm.
I wonder whether the teacher meant "people" or "students" when he or she made that remark.
In any case, I would argue that most 'people' (okay, people in general, and students, in particular) don't know how to read non-fiction. In fact, in my opinion, this problem is not confined to non-fiction. I would argue that it applies equally well to fiction.
This is because - firstly - most people don't read that much nowadays. And, if you don't read that much, it is difficult to learn - or master - how to read material properly.
This is the old "practice makes perfect"; just knowing how to read is not enough. Instead, this refers to reading proficiently, being comfortable with the written word. Reading anything - devouring all kinds of books (and comics) as a kid, that is, reading a lot, means that you learn how to read, how to comprehend what is on the page, what those words are trying to tell you, and how to extract meaning and understanding from what you read, a skill that can be transferred to anything you read.
The second reason - I would argue - why "people" don't know how to read non-fiction (and much of fiction, too, for that matter) is that much reading nowadays is done online, and - at least, from what I can see - one "reads" material online differently to how one reads material in a printed page of a book; rather than reading slowly, and thoughtfully, one skims swiftly, and - certainly, in my own experience - one retains a lot less information than is (was) the case on a printed page of a book; it is a different kind of reading, taking the form of a rapid devouring of data, wolfing words, rather than the sort of cogitation and thought (and comprehension) that used to attend reading the printed page of a book, or (hard copy) periodical.
Some of my friends who still teach tell me that they are increasingly encouraging students to write their classnotes, and lecture notes by hand, rather than have the kids use a tablet or laptop. They tell me that it aids memory and understanding better. I suspect that something similar takes place with reading material online, and that there is a difference in how we process information from the printed word, depending on whether it is online, or physically in front of you, in the form of a book, or paper, or periodical.