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Practical notes on learning faster with AI — no motivation, just workflows.

Second BrainAugust 14, 2026·9 min

Zettelkasten Explained Simply: How to Get Started

Notes pile up but the system doesn't work: links get saved, summaries get written, and none of it turns out to be usable later. Here's Zettelkasten without a Luhmann biography or an app comparison: what the method actually is, what notes you need, how to link them properly, and the one step to start with today.

AI LearningAugust 14, 2026·12 min

AI and Learning: What Helps vs What Just Feels Like Progress

AI made explanations cheap, but it also got good at sounding convincing even when you haven't actually learned anything. Here's which scenarios actually train a skill, which ones just create the illusion of understanding, and the Rust example where I fell for it myself.

Second BrainJuly 26, 2026·13 min

How to Connect AI Video Notes to Your Knowledge Base

A shelf of fifty AI video summaries nobody ever reopens isn't a knowledge base, it's an archive. A full pipeline for turning a summary into connected knowledge: separating source from knowledge, letting AI suggest links while you confirm them, and feeding what you already know back into the next video.

AI for ResearchersJuly 26, 2026·11 min

Prompt Engineering for Document Analysis

A prompt for document analysis isn't a one-off phrasing, it's a spec for a procedure: role, context, criteria, constraints, and output format. Covers how to build prompts for extraction, comparing sources, catching contradictions, and multi-step analysis, and how to test them across different documents instead of just the one that happens to work.

AI for DevelopmentJuly 16, 2026·12 min

Why Small Teams Outpace Large Ones

More people almost always means more total hours worked, but not more speed. As a team grows, so does the number of connections between its members, and part of every added hour goes to coordination instead of the task. Here's what that overhead is actually made of, where a small team genuinely wins, and where "small" just means small, not fast.

AI Chat with PDFJuly 15, 2026·20 min

AI Chat with PDF: How to Work with Large Documents Using AI

A PDF no longer has to be read cover to cover. You can just ask it about a specific clause, figure, or section instead. Here's how AI chat with a document actually works, what's worth asking it, where it gets things wrong, and how it differs from plain search and from a regular ChatGPT conversation — plus what this looks like in practice in Cruxly.