I think you are deciding good on an absolute scale, and you are right in that any time you spend actively engaging your mind and growing is not going to be a co

I think you are deciding good on an absolute scale, and you are right in that any time you spend actively engaging your mind and growing is not going to be a complete waste of time. In a world where it is often almost impossible to know what effect a book has on you until much later, if at all, it's very hard to know whether a book you just read was 'huge' or just another book. So while I did enjoy the article and applying the little framework to my own reading history, there's no way to know before you read it, and probably even after you read it in a lot of cases, whether a book was the 'right book for you' at a given time. I guess that is the point of the article in the end, you can't reasonably build a book recommendation system based on past reading history and reviews of books. That 5 star you gave Huckleberry Finn, remembering how much you enjoyed it when you were 13, might be a 1 star if you read it for the first time today. Or maybe it would be 5 stars still. There's almost no way to know.