Blog category
116 WebSnips articles on knowledge concepts.
116 published articles
Metadata is data that describes other data — the title, author, date, tags, and context attached to a file or document that make it findable, sortable, and understandable without opening it.
Tacit knowledge is expertise held in people's heads — hard to articulate, learned through experience. Explicit knowledge is documented, shareable, and searchable. The distinction is the foundation of knowledge management.
Taxonomy is a controlled, hierarchical classification system designed by experts. Folksonomy is a user-generated tagging system that emerges from collective use. Both organize information — they trade off control for flexibility and scalability.
The collector's fallacy is the mistake of believing that gathering information is the same as learning it — saving articles, bookmarking links, and highlighting text without processing or using the content.
The forgetting curve is Ebbinghaus's finding that memory decays exponentially after initial learning — losing roughly 50% within a day and 80% within a week without review.
The Leitner system is a manual spaced repetition method using physical flashcard boxes — cards you know well move to boxes reviewed less frequently; cards you struggle with stay in boxes reviewed daily until you master them.
The Lindy effect is the principle that for non-perishable things — ideas, books, technologies, institutions — the longer something has already survived, the longer it's expected to survive. Age predicts future longevity.
The Pareto principle for reading applies the 80/20 rule to information intake: roughly 20% of what you read produces 80% of the value. Identifying and focusing on that 20% dramatically improves knowledge quality and reduces overload.
The SM-2 algorithm is the mathematical formula that powers Anki and many other spaced repetition systems — it calculates precisely when to show you each flashcard based on how well you recalled it last time.
The Zeigarnik effect is the finding that unfinished tasks are remembered better than completed ones — your brain keeps open loops active in working memory until they're closed.
Backlinks in note-taking are automatic reverse links that show you every note that mentions a given note — making connections visible that you'd otherwise have to maintain manually.
Bidirectional linking is a note-taking feature where links between notes automatically work in both directions — when Note A links to Note B, Note B automatically shows a backlink to Note A.
Daily notes is a PKM practice of creating one note per day as a time-stamped journal entry, capture inbox, and scratch pad — giving every thought, meeting note, and idea a home without deciding where it belongs upfront.
Graph view is a visual map of your notes showing each note as a dot and each link between notes as a line — making the structure of your knowledge base visible at a glance.
Transclusion is a technique where the content of one note or document appears embedded inside another note — live, not copied — so any change to the original updates everywhere it's transcluded.
What is citation management? A clear explanation for researchers and academics — how citation managers work, the best tools, and how to avoid the most common mistakes.
What is tacit knowledge? A clear explanation for team leads and ops people — what tacit knowledge is, why it's the hardest knowledge to transfer, and practical methods to make it explicit.
What is a commonplace book? A clear explanation of the centuries-old knowledge collection practice, famous examples, and how to build a modern digital version for writers and researchers.
What is a knowledge graph? A clear explanation of the technology, how Google's knowledge graph works, and what personal knowledge graphs in tools like Obsidian actually do.
What is a Map of Content (MOC)? A clear explanation of Nick Milo's PKM concept, how MOCs organize linked notes without folders, and how to build one in Obsidian or any tool.
What is a personal wiki? A clear explanation of the concept, how personal wikis differ from other note-taking systems, and the best tools for building one in 2026.
What is a read-it-later app? A clear explanation of how these tools work, which ones are worth using in 2026, and how to build a reading habit that actually produces retained knowledge.
What is a second brain? A clear explanation of the concept, where it comes from, how it works, and how to build one — with practical examples and tool recommendations.
What is a slip box? A clear explanation of Niklas Luhmann's analog note-taking system — how it works, why it produces better thinking than standard note-taking, and how to build your own.