What Is Learning in Public
The phrase "learn in public" was popularized by software engineer Shawn Wang (swyx) in a 2018 essay that went viral in the developer community. His core argument was simple: instead of hoarding knowledge until you feel like an expert, share what you're learning in real time. Write blog posts. Tweet your takeaways. Publish half-formed ideas. Let people see your process, not just your polished results.
But learning in public isn't limited to software engineers or tech workers. It's a practice as old as the Socratic method. When Socrates debated in the Athenian agora, he was learning in public. When scientists publish papers with preliminary findings, they're learning in public. What's new is the scale. The internet gives every person on the planet the ability to share what they're learning with a global audience, instantly and permanently.
The practice takes many forms: highlighting passages and sharing them with annotations, writing summaries of books you've read, posting video breakdowns of concepts you're studying, maintaining a public reading list, or simply sharing quotes that changed your thinking. The common thread is visibility. You make your learning process available to others, which changes both what you learn and how well you learn it.
The Science: Why Sharing Makes You Smarter
The "protege effect" is one of the most replicated findings in educational psychology. When you teach or explain something to someone else, you learn it better yourself. A 2018 meta-analysis by Koh et al. published in Educational Psychology Review found that students who prepared to teach (and then taught) retained 30% more material than students who only studied for a test. The effect held across subjects, age groups, and formats.
Why does this work? Cognitive science offers three explanations.
First, generative processing. When you explain an idea in your own words, you're forced to reorganize it. You can't just parrot back what you read. You have to build a mental model that makes sense to someone who doesn't already know the material. This is harder than passive review, and the difficulty is precisely what makes it stick.
Second, gap detection. Writing or talking about a topic reveals what you don't actually understand. When you're reading silently, it's easy to feel like you "get it." When you try to explain it publicly, the gaps become obvious. This triggers targeted re-study on the parts that matter most.
Third, social accountability. When your notes are private, there's no consequence for sloppy thinking. When they're public, you care more about accuracy. This increased effort, what psychologists call "desirable difficulty," strengthens encoding in long-term memory.
Richard Feynman understood this intuitively. His famous technique for learning anything, explaining it in plain language as if teaching a child, is essentially the protege effect in action. The difference today is that you don't need a classroom. You just need a public platform.
Private vs. Public Learning: What the Data Shows
Most people default to private learning. They read, highlight, and take notes in apps that no one else can see. This isn't bad. It's just slower and lonelier than it needs to be.
Here's how the two approaches compare across key dimensions:
| Dimension | Private Learning | Public Learning |
|---|---|---|
| Retention | Standard recall rates (20-30% after 1 week) | 30%+ improvement via protege effect (Koh et al., 2018) |
| Feedback | None; errors go uncorrected | Community corrections and additions |
| Accountability | Self-motivated only | Social motivation and consistency pressure |
| Network effects | Zero; knowledge stays siloed | Attracts like-minded learners and mentors |
| Career impact | Invisible to employers and collaborators | 45% more inbound opportunities (LinkedIn, 2024) |
| Long-term value | Dies with you or your hard drive | Becomes a searchable, shareable knowledge legacy |
| Serendipity | Limited to your own search habits | Others discover and build on your work |
The LinkedIn data point deserves emphasis. Their 2024 Workplace Learning Report analyzed millions of user profiles and found that professionals who regularly shared learning-related content (articles, course completions, takeaways, book notes) received 45% more inbound messages from recruiters and collaborators. Public learning is a career asset, not just a personal habit.
The 5 Levels of Learning in Public
Not everyone needs to start a YouTube channel or write a 3,000-word blog post. Learning in public exists on a spectrum. Here's a framework for thinking about it, from lowest effort to highest impact:
| Level | Activity | Effort | Example | Impact |
|---|---|---|---|---|
| 1. Consume | Read, watch, listen | Passive | Reading an article | Personal only |
| 2. Highlight | Mark what resonates | 10 seconds | Highlighting a key passage on Glasp | Visible to followers |
| 3. Share | Add brief context | 1-2 minutes | Sharing a highlight with a one-line note | Starts conversations |
| 4. Summarize | Synthesize key ideas | 15-30 minutes | Writing a book summary or article takeaway | Helps others decide what to read |
| 5. Create | Produce original work | Hours | Writing an essay, recording a video, building a project | Establishes expertise |
Most people stop at Level 1. They consume enormous amounts of content but produce nothing visible. The biggest jump in learning quality happens between Level 1 and Level 2. Simply highlighting a passage forces you to make a judgment: "This matters." That act of selection is the beginning of critical thinking.
Glasp's web highlighter is designed specifically for this transition. When you highlight a passage on the web, it's automatically shared on your Glasp profile. No extra steps. No need to copy-paste into a separate app. The friction between private reading and public sharing drops to nearly zero.
Moving from Level 2 to Level 3 (adding a note or comment to your highlight) is where the protege effect kicks in. Even a single sentence of annotation forces you to articulate why something matters. Over time, these micro-explanations compound into a rich, searchable body of knowledge that reflects how your thinking has evolved.
Platforms for Learning in Public
Not every platform is equally suited to learning in public. Here's how the major options compare:
| Platform | Best For | Format | Barrier to Entry | Persistence | Discovery |
|---|---|---|---|---|---|
| Glasp | Highlighting and annotating as you read | Web highlights + notes | Very low (highlight = share) | Permanent profile | Community feed, topic pages |
| Twitter/X | Quick takes, threads | Short text, threads | Low | Buried in feed after 24-48h | Algorithmic, volatile |
| Blog (personal) | Long-form essays, tutorials | Articles | High (setup, writing, SEO) | Permanent if maintained | Organic search, slow buildup |
| GitHub | Code projects, documentation | Repos, READMEs | Medium (technical) | Permanent | Search, stars, forks |
| YouTube | Visual explanations, tutorials | Video | High (recording, editing) | Permanent | Algorithm-driven |
| Professional learning, career signaling | Posts, articles | Low | Moderate | Professional network |
The key insight: you don't have to pick just one. The most effective public learners use a layered approach. They highlight articles on Glasp as they read (low effort, high consistency), share occasional takeaways on Twitter/X or LinkedIn (medium effort, network growth), and write longer pieces on their blog when they've developed a substantial perspective (high effort, lasting authority).
Consistency matters more than polish. Someone who highlights three articles a day on Glasp for a year builds a far more valuable knowledge base than someone who publishes one "perfect" blog post and then goes silent.
Overcoming the Fear of Being Wrong
The number-one reason people don't learn in public is fear. Fear of looking stupid. Fear of being corrected. Fear of sharing something "obvious" that everyone else already knows.
This fear has a name in social psychology: evaluation apprehension. Cottrell (1972) demonstrated that people perform differently when they know they're being observed and judged. For simple tasks, the presence of an audience improves performance. For complex tasks (like articulating a new idea), it can cause people to freeze or stay silent.
Here's the counterintuitive reality: being wrong publicly is actually one of the fastest ways to learn. When you make a mistake in private, no one corrects you. That misconception sits in your mental model indefinitely. When you make a mistake publicly, someone will point it out. The correction is faster, more specific, and more memorable than anything you'd discover through solo study.
Three strategies for managing the fear:
1. Frame it as "working notes," not "expert opinions." Use language that signals you're in process. "Here's what I'm understanding so far about X" is different from "Here's how X works." The former invites collaboration. The latter invites criticism.
2. Start at Level 2 (highlighting), not Level 5 (creating). You don't need to write an essay to learn in public. Highlighting a passage on Glasp and adding a one-sentence note is enough. The bar for "being wrong" when you're sharing someone else's words is extremely low.
3. Remember the 1% rule. In most online communities, 90% of users consume content without contributing, 9% contribute occasionally, and 1% create most of the content. By sharing anything at all, you're already in the top 10%. The audience you're afraid of is mostly too busy consuming to judge.
Building Your Digital Legacy of Learning
Glasp's mission is to "democratize access to other people's learning." Behind that mission is a deeper idea: that the knowledge you accumulate over a lifetime shouldn't disappear when you close your laptop or, eventually, when you're no longer around.
Every highlight, note, and summary you share publicly becomes part of a searchable, browsable record of your intellectual journey. This is what we mean by "digital legacy." It's not a social media persona. It's a map of what you found worth knowing.
This concept connects directly to the idea explored in The Greatest Legacy for Future Generations: that leaving behind your learning is one of the most valuable things you can do for others.
Consider the compounding effect. If you highlight 5 passages a day, that's roughly 1,800 highlights a year. Over a decade, that's 18,000 curated data points reflecting your reading, your interests, and your evolving understanding. For anyone who follows a similar path, your profile becomes a curated reading list filtered by someone who shares their interests and values.
This is also how collective intelligence works at scale. When thousands of readers highlight the same article, the most-highlighted passages surface as a form of consensus: "This is the part that matters most." No algorithm can replicate this kind of human curation. It requires real people doing real reading and making real judgments about what's important.
Case Studies: Public Learners Who Built Careers From It
Shawn Wang (swyx) coined "learn in public" in 2018 while transitioning from finance to software engineering. He documented every concept he learned through blog posts, Twitter threads, and conference talks. Within two years, he'd built a following of 50,000+ developers, landed a role as Head of Developer Experience at Airbyte, and published The Coding Career Handbook. His advice: "You already know mass-market content has been created. Create the content you wish existed when you were learning."
Anne-Laure Le Cunff started publicly sharing notes on neuroscience and productivity in 2019 through her newsletter Ness Labs. She treated each piece as a learning exercise, not a polished publication. By 2024, she had 100,000+ subscribers, a book deal, and a PhD in neuroscience from King's College London. Her public learning doubled as research.
Tiago Forte built his entire career around the idea that organizing and sharing knowledge is a skill worth developing. His Building a Second Brain methodology started as personal notes and reading summaries he shared publicly. Those notes became a course, then a book, then a company. The method itself is a framework for making private knowledge public and useful.
The pattern across all three: they started before they felt ready, they shared consistently rather than perfectly, and the act of sharing accelerated their expertise in ways private study couldn't match.
How Glasp Makes Learning in Public Effortless
Most tools for learning in public require you to do something extra: write a post, record a video, compose a tweet. Glasp works differently. It turns something you're already doing (reading and highlighting) into a public act of knowledge sharing.
Here's the workflow:
- Install the browser extension and read the web as you normally would.
- Highlight any passage that strikes you. It's saved to your Glasp profile automatically.
- Add a note if you want to capture why it matters to you (optional but powerful).
- Your highlights appear on Glasp's community feed, where others can discover, follow, and learn from your reading.
- Import your Kindle highlights using Kindle import to bring your book reading into the same public profile.
- Use YouTube Summary to capture key points from videos with Glasp's YouTube Summary tool.
The friction is almost zero. You don't need to write a blog post. You don't need to compose a thread. You just read and highlight. The platform handles the sharing.
This design is intentional. The biggest drop-off in learning in public happens when the effort required exceeds the effort of private note-taking. By making public sharing the default behavior of highlighting, Glasp eliminates that drop-off entirely.
Frequently Asked Questions
What does "learning in public" actually mean?
Learning in public means making your learning process visible to others. Instead of studying privately and only sharing finished, polished work, you share your notes, highlights, questions, mistakes, and evolving understanding as you go. It can be as simple as highlighting articles and sharing your reading list, or as involved as writing detailed summaries and producing educational content.
Do I need to be an expert to learn in public?
No. In fact, beginners often produce the most useful public learning content. Experts suffer from the "curse of knowledge," where they forget what it's like to not understand something. A beginner's explanation of a concept is often clearer and more relatable to other learners than an expert's. The point isn't to teach from authority. It's to share your process.
What if I share something that's wrong?
This is the most common fear, and it's largely unfounded. If you frame your sharing as "here's what I'm learning" rather than "here's the definitive answer," people respond with corrections and additions rather than criticism. Getting corrected publicly is uncomfortable for about 30 seconds and then saves you months of carrying a misconception. Private learners never get that correction.
How much time does learning in public take?
As little as 10 seconds per highlight. On Glasp, the act of highlighting is itself the act of sharing. Adding a one-sentence note takes another 30 seconds. You can learn in public without spending any time beyond what you'd normally spend reading. More intensive forms (writing summaries, creating videos) take more time, but they're optional.
Won't sharing my knowledge make me replaceable?
This is a common worry, especially among professionals. The evidence shows the opposite. People who share knowledge publicly are perceived as more knowledgeable and are more likely to be sought out for opportunities. Hoarding knowledge makes you a single point of failure. Sharing it makes you a trusted authority and connector.
How is learning in public different from content creation?
Content creation focuses on producing polished work for an audience. Learning in public focuses on making your learning process visible, regardless of polish. A learning-in-public highlight might be a single underlined sentence with no commentary. Content creation implies an audience-first mindset. Learning in public is learner-first: you share because it helps you learn, and others benefit as a secondary effect.
Conclusion
The default mode of learning is private. You read alone, take notes alone, and keep your insights locked in apps and notebooks that no one else will ever open. It works, but slowly and in isolation.
Learning in public inverts this. Every highlight you share is a signal to others: "I found this worth knowing." Every note you add is a small act of teaching that strengthens your own understanding. Every mistake you make publicly is a correction you receive for free, one that private learners never get.
The research is clear: teaching others improves your own retention by 30% or more. Public learners receive nearly half again as many career opportunities. And the knowledge you share becomes a lasting asset, a digital legacy that helps future learners long after you've moved on.
You don't need to start with a blog or a YouTube channel. You can start at Level 2: highlight one sentence today that changed how you think about something, and let Glasp make it visible. That single act is already more public than 90% of learners ever get.
The fastest way to learn is to let others watch you do it.