In today’s information-rich world, reading widely is easy, but retaining what you read can be a challenge. Studies indicate the average person forgets half of new information within just an hour. For entrepreneurs who rely on continuous learning, this means much of what you consume in books, articles, or lectures can slip away almost immediately. The key is that learning happens in two stages: intake (consumption) and processing (digestion). In other words, it’s not how much goes into your brain, but what stays there that counts.
To retain knowledge, you need to process material after reading – summarizing, connecting, and practicing it – rather than just passively devouring information. As Justin Sung’s framework emphasizes, balancing these two stages is crucial. In his PACER system, each piece of information you read is classified into one of five types, each with a tailored strategy for embedding it into memory. This approach helps ensure you spend more time digesting than just consuming, maximizing what you remember.
The Two-Stage Learning Process: Consumption vs. Digestion
Learning isn’t a one-step event. Initially, you consume information by reading or listening. This is simply gathering data. But the consumption phase alone yields poor retention: without follow-up, most of it will be forgotten. The digestion phase is where the magic happens. During digestion, you process the material by summarizing it in your own words, linking it to what you know, or teaching it to someone else – and thus encode it into long-term memory.
Think of it like eating a meal: reading is the “meal,” but digestion is actually absorbing the nutrients. Sung notes that attempting to consume more information without allowing time for digestion leads to “overeating” your brain, followed by a “mental vomiting” of knowledge (i.e., forgetting). In fact, research suggests we forget a huge amount of new content very quickly – up to 90% within days if we don’t actively process it. Hence, effective learning requires that consumption and digestion remain in balance. Always ask: have I given myself the opportunity to process what I’ve just learned before moving on to the next topic?
Categorize Information with PACER
Not all information is alike, and different kinds of content benefit from different retention techniques. Sung’s PACER framework breaks information into five categories – Procedural, Analogous, Conceptual, Evidence, and Reference – each with its own process for digestion. Identifying the category helps you apply the right strategy immediately. Below we summarize each type and the recommended approach:
1. Procedural (How-To) Information
These are step-by-step instructions or skills (e.g., programming commands, recipe steps, medical procedures). For procedural knowledge, the solution is practice. As soon as you learn how to do something, do it – build hands-on experience right away. For example, if you read about using a new software tool, open the tool and try it immediately. By practicing early, you turn abstract instructions into muscle memory. If immediate practice isn’t possible, pause further reading and come back later: continuing to read new material without applying past content wastes effort and leads to forgetting.
2. Analogous (Relational) Information
This includes ideas that connect to something you already know. Analogies and metaphors fall here. For instance, learning about electrical circuits might remind you of water flowing through pipes. To use analogies effectively, create and critique them: deliberately connect the new concept to familiar ones, then ask how they match or differ. Critiquing analogies (What’s similar? What’s different? Where does it break down?) forces deeper understanding. Drawing these connections dramatically boosts retention: by tying new facts into your existing knowledge network, analogies make the unfamiliar much easier to recall.
3. Conceptual (Facts & Principles) Information
These are the core ideas, theories, and relationships in a subject (e.g. principles of economics, scientific theories, business models). Conceptual knowledge is inherently networked rather than linear. To digest it, use mapping techniques (mind maps, concept maps, flowcharts). Mind mapping lets you visually organize facts and show how concepts link together. This forces you to re-create the expert’s knowledge structure: instead of rote notes, you build a web of ideas. For example, if you’re learning a new marketing framework, draw a diagram of its components and how they influence each other. Concept mapping not only increases focus, but also highlights the “big picture,” ensuring you understand each fact in context.
4. Evidence (Concrete Examples) Information
This is detailed supporting data that brings concepts to life (e.g. statistics, case studies, historical facts). Evidence makes abstract concepts concrete – like knowing the theory of startups, plus a specific example of how Dropbox grew by 1000% in a year. When you encounter evidence, store it immediately: jot down or capture exact figures, quotes, or examples in your notes or flashcards. Then schedule a time to rehearse this evidence. Later, test yourself by recalling these facts or applying them to problems: for instance, use historical data as examples when explaining a concept, or solve practice questions that require those facts. This spaced rehearsal – coming back to the evidence after some delay – is what moves the details from short-term to long-term memory.
5. Reference (Nitty-Gritty) Information
These are specific details you might need to recall exactly (e.g. formulas, codes, definitions). By themselves they don’t change your understanding of a topic, but you still might need to memorize them. Treat reference info like evidence: store & rehearse with flashcards or spaced-repetition software. For example, the amino acid sequence of a protein or the exact formula for a metric belong here. Don’t waste your reading time trying to cram these details; instead, note them down for later review. Since they’re meant for precise recall, using active-recall tools (flashcards with spaced repetition) is the best way to learn them over time.
By explicitly identifying which category each new piece of information falls into as you read, you can apply these targeted processes on the spot. This makes learning active rather than passive. For instance, if you’re reading a business article and it presents a step-by-step strategy (procedural), you should immediately consider how to apply it. If it introduces a new framework (conceptual), start sketching a map. If it cites a statistic (evidence), copy it into your notes and plan to review it later.
Balancing Intake and Processing
A recurring theme is balance. It can be tempting to binge-read and absorb as much content as possible. But without digestion, this leads to cognitive overload and rapid forgetting. Sung notes that cramming more without processing is like “overeating” your brain – you end up “vomiting” most of it back out via forgetfulness. In one analysis, up to 90% of new material is forgotten within days when you do not engage in follow-up processing.
To counteract this, consciously prioritize digestion. After reading a chapter or a long article, pause and summarize the key points in your own words. Relate them to what you already know. Ask yourself questions: How does this fit with my existing projects? What practical steps can I take? Even explaining it aloud to a colleague or on paper can cement the ideas. These active-recall exercises – self-quizzing yourself on the material – are proven to strengthen memory more than passively re-reading.
Likewise, be aware of your brain’s limits. It cannot effectively absorb unlimited information in one sitting. Structure your learning in chunks. For example, instead of a marathon 3-hour reading session, break it into focused intervals (e.g. 25–50 minutes) with short breaks. During breaks, mentally replay what you just learned. This gives your brain time to consolidate. Practical tools can help – use timer apps or the Pomodoro technique to segment your study time. This approach prevents overload and leads to better long-term storage.
Finally, remember that active engagement enhances retention. Take handwritten notes or type summaries as you go. Ask yourself questions or discuss concepts with others. This doesn’t just occupy your eyes and ears – it makes you an active participant in learning. By turning passive reading into an interactive process, you ensure that more information sticks.
Practical Tips for Entrepreneurs
- Use Mind Maps and Notes: When tackling complex material (strategic frameworks, business models, new technology), draw diagrams or concept maps. Visually linking ideas forces you to process the material deeply.
- Apply It Immediately: Whenever possible, apply what you read to a real task. Try a new coding technique in your project (procedural), or use a new sales tip in a client meeting (procedural/analogous) right away.
- Create Your Own Examples: If a concept is abstract, invent an analogy relevant to your business or life. Then critique your analogy: this will deepen your insight and make the idea more memorable.
- Schedule Reviews: For evidence and reference details (figures, dates, definitions), use spaced repetition. Add them to a flashcard app and review daily or weekly. This way you build recall over time without wasting study hours.
- Summarize Daily: At the end of each day, spend 5–10 minutes summarizing everything new you learned. Teach it (even to an imaginary audience). These habits keep digestion on track and gradually build mastery.
Final Thoughts
For entrepreneurs, learning efficiently is just as important as learning a lot. By shifting focus from how much you read to how well you process and use it, you retain more useful knowledge. The PACER system – breaking material into Procedural, Analogous, Conceptual, Evidence, and Reference – provides a clear roadmap. Identify the type of information, apply the targeted strategy (practice, critique, map, store & rehearse), and keep consumption balanced with digestion. Over time, these deliberate steps transform fleeting reading into lasting insight. In short, adopt active, structured reading habits: your future self (and your business) will thank you for the knowledge that stays with you.
