I have a confession to make. Last year, I read a lot of books. Just enough to help me be and do better. But halfway through the year, I couldn't remember the ideas I didn't apply almost immediately after reading. I had to change that. I found an interesting meta-skill that turned reading into practical knowledge. A mental tool that helps me remember ninety percent of what I read. Reading isn't the same as learning. Finishing books isn't the same as understanding them. And highlighting passages isn't the same as remembering. Most people read quickly.
And do nothing with the new knowledge.
Studies on reading comprehension show that without active monitoring, people forget up to 90% of new information within days. Not weeks. Days. Experts have known this for decades.
The meta-skill I found to change that is metacognition. It just means "thinking about your thinking." The awareness and control of your own thinking. But how does it solve the "forgetting" problem? When you read with metacognition, you don't just consume information. You watch your mind while it works.
There's more. You notice:
• When you understand what you are reading
• When you think you understand
• When you're confused but pretend you understand
• The exact time you get distracted
• And the minute an idea or something makes sense.
Before you read anything important start with this question: why am I reading this? What do I hope to walk away with? Be specific. "I want to understand the basics of writing better" is better than "I want to be smart writer." This sets a trap for your brain. It gives it a mission. As you read, lookout for answers to your primary question.
Successful reading requires metacognition. Without it, your brain treats reading like another piece of information it can quickly get rid of. With it, reading becomes a conversation. The brain forgets what you read on purpose because it's a ruthless editor. It deletes information that feels unused, unexamined, or unconnected to anything. When you read without metacognition, you're telling your brain: this is good, but not important to keep. Memory is not so much about repetition.
It has everything to do with engagement.
Metacognition forces engagement.
It makes your brain think about thinking. And ask yourself important questions like: wait, do I actually get this?
"Readers must run their own feedback loops. "Did I understand that? Should I re-read it? Consult another text?" Readers must understand their own cognition. "What does it feel like to understand something? Where are my blind spots?" writes Andy Matuschak.
The difference between readers who remember and readers who don't starts with questioning your own thoughts. People who remember what they read check their understanding, adjust strategy mid-reading. And ask themselves questions while learning.
The smartest readers who make the most of new knowledge interrupt the process. They don't trust their first impression. They stay curious and argue with the author. And predict what's coming next. Those reading for practical knowledge actively engage with the content to find clarity. Bad readers pursue completion. But those reading from a higher level ask better questions. Could I explain this to someone right now? Do I agree with this? Are the examples practical, and can I apply them right now? Where does this fit with what I already know?
Those questions help your brain make better sense of what you are reading. It's likely to save the new content to your long-term memory. If you can't answer, you are unlikely to do anything with the new knowledge. Your brain won't take the information seriously. I started doing it last year. Sometimes on my way to work. In trains. Coffee shops. Before bed. In between deep work. It slows me down. But the ideas are sticking.
"We can learn to pay attention, concentrate, and devote ourselves to authors. We can slow down so we can hear the voice of texts, feel the movement of sentences, experience the pleasure of words — and own passages that speak to us," writes Thomas Newkirk in his book, The Art of Slow Reading: Six Time-Honored Practices for Engagement.
Metacognition helps you get past the "illusion of understanding."
Your brain is great at feeling like it understands. You hurry through the reading process. And assume you get it. You don't if you are not reflecting, thinking, and applying. Thinking about your thinking breaks that illusion. It forces you to test your understanding, where most people trust and aim for completion. That simple rule changed my reading habit. If I can't explain it to myself or don't connect it with anything I know, I assume I don't understand it yet. And keep asking questions. Through notes, highlights, and mental explanations.
It's slow but effective.
Highlighting alone doesn't work, though.
It's a poor retention strategy. It creates familiarity but not long-term memory retention. Don't stop there.
Try self-questioning
Summarising from memory
Predicting the author's angle
Reflecting on your confusion
Highlighting can work if it triggers thinking. And even helps you ask better questions. What does this really mean? So what? Why should I care? How would this fail? These questions force you to connect ideas. Your brain remembers connections, not isolated facts. Connections create memory. Memory creates long-term knowledge. This is why kids learn so fast. They constantly ask "why." Adults stop because they want to feel competent. Metacognition gives you permission to be confused. Make reading an engagement process. It will transform your reading habit.
And make you smarter.
For example, if you are reading a book on communication and the author says, "seek first to understand, then to be understood." Don't keep reading. Think about that quote. Try to get to the simple meaning of it in your head. "When was the last time you did the opposite?" Maybe in a recent argument with your partner, where you couldn't wait to get your point across. Those few minutes of personal shame or recognition tie the knowledge to a personal experience. It's now yours. It won't leave.
Treat anything you read and want to keep like a conversation. Disagree with the author. Notice your emotional reactions. Mark places where you felt resistance. When something annoys you, lingers, or excites you, your brain flags it as important.
Metacognition turns reading from knowledge intake into interaction. It turns the main ideas, mental models, and decision-changing frameworks into long-term knowledge. I don't remember every page I read. I remember what changed how I think.
Read with metacognition, and you will stop measuring yourself by books you finished. You will start making better and smarter connections with ideas you find in essays and books.
"The smarter you get, the slower you read."
Naval Ravikant said.
Long post short?
If you forget most of what you read, nothing is wrong with you. Your brain is doing exactly what it's designed to do. Filter the unnecessary and keep what feels useful. You can use that to your advantage by making reading an awareness experience. Metacognition makes reading an active relationship. You notice when you're lost. You slow down when something matters. You test ideas. And run feedback loops in your head. That's how books stop passing through you and start staying with you. Next time you read anything important, don't focus on how fast you can finish it. What can the new knowledge do to your thinking process?
If you are really serious about remembering it, make your brain work for it. Will you remember 90% of what you read? Maybe not. But you'll significantly improve retention. They'll be ready when you need them. The point of any reading is many ideas can through to you.