Here's a study plan someone posted in a forum last week. Somewhere in it is a mistake that quietly wrecks how much they'll actually retain. See if you can spot it before I say what it is: "I block out 6 hours on Sunday and read the entire textbook chapter for the week, highlighting the important parts as I go. By the end I feel like I really understand the material." What would you flag? Drop your answer in the comments — no wrong guesses, I'll share what actually breaks this approach (and a better version) once a few people have weighed in.