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Learn the language of personal knowledge
Short, source-attributed definitions for the concepts behind capture tools and knowledge bases, and what changes when the thing you are saving is a post on Instagram, TikTok or YouTube.
- Knowledge management
What is a second brain? Definition, methods, and tools
A second brain is an external system for capturing, organizing, and reusing what you consume. Definition, the four-step method, and why it breaks down on Instagram, TikTok and YouTube.
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What is a personal knowledge base? How PKBs work in 2026
A personal knowledge base is a private collection of notes, references, and lessons you can search and reuse. Definition, structure, tools, and the saved-post input most stacks leave out.
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What is a social media knowledge base?
A social media knowledge base is a searchable, private collection built from the posts you save on Instagram, TikTok, YouTube, LinkedIn, Reddit and elsewhere. Definition, why Saved folders fail, and how to build one.
Read - Learning method
What is spaced repetition? Science, schedules, and tools
Spaced repetition reviews material at increasing intervals, just before forgetting. The forgetting curve, schedules, tools, and how to apply it to what you save from YouTube and TikTok.
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What is a zettelkasten? The note-linking method, explained
A zettelkasten is a slip-box of atomic, linked notes that compound over time. History, the four note types, modern tools, and why notes from TikTok or YouTube rarely get written.
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