This phenomenon of not remembering what I just read is familiar to me from the moments where I'm about to take an exam after a course. I usually go through the course material two or three times before taking the exam. Just before taking my place in the exam room, I test my self: "what were the five key points in chapter 3". Oh I can't recall them, I'm in trouble!
Fortunately the exams (at least in my university) did not focus on the student's ability to remember exact sentences or enumerate the "five bullets on chapter X". Like in real life, most of the exams required me to remember ideas and their implications, not exact phrases.
To sum, its not essential to be able to recall and speak out some random facts from a book. Its more important to comprehend what ideas were present in the book and what consequences those ideas might have on X or Y. Us humans are not computers but beings capable of creative thought.
Fortunately the exams (at least in my university) did not focus on the student's ability to remember exact sentences or enumerate the "five bullets on chapter X". Like in real life, most of the exams required me to remember ideas and their implications, not exact phrases.
To sum, its not essential to be able to recall and speak out some random facts from a book. Its more important to comprehend what ideas were present in the book and what consequences those ideas might have on X or Y. Us humans are not computers but beings capable of creative thought.