Remember 80% of Everything You Read in 15 Minutes a Day

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You've probably done it. Cleared a Saturday, made the coffee, opened the textbook or the course dashboard, and told yourself: *today I'm going to learn this properly.* Six hours later you've highlighted half a chapter, watched four videos at 1.5x speed, and retained almost none of it. By Wednesday, the material has dissolved. Meanwhile, someone else spent fifteen quiet minutes a day on the same subject and can still explain it weeks later. That's not talent. That's math. Here's the uncomfortable truth: your brain was never designed for marathon study sessions. It was designed for repetition across time.