The 15-Year Note-Taking Habit That Will Make You Rethink Everything You Know About Ideas

You’ve probably felt it. You write down a thought, a quote, a random idea. It sits in your notes app, forgotten. Months or years later, you stumble upon it and suddenly it clicks with something else you’ve been working on. That spark feels like luck. But it’s not. It’s a system.

One engineer just proved it. He published 660 notes from a private vault of 8,360 — 15 years of collecting thoughts. He didn’t start with a plan. He started in OneNote, migrated to Obsidian, and wrote a Python script to import everything. The result? A public second brain that reads like a time-lapse of a mind at work.

Notes are not just storage. They are intellectual compound interest. The real payoff doesn’t come from organizing your notes today. It comes from letting them collide years later.

The author noticed something profound: notes he wrote years apart — on topics like Materialized Views, One Big Table, dbt, and OLAP — were actually the same pattern. He only saw it after the fact. That pattern became a chapter in his book. His note on the Semantic Layer, written in 2022, became a four-part blog series, then a full chapter. The dots connected themselves — but only because he had drawn them in the first place.

This is the opposite of how most people treat note-taking. We treat it as an act of immediate storage. Write it down, file it, forget it. We want the payoff now — a to-do list checked off, a summary written. But the true ROI of a note only materializes years later, through delayed synthesis. The moment you stop trying to force meaning and let unrelated notes collide is the moment your second brain starts to pay dividends.

Stop treating your notes like a filing cabinet. Treat them like a garden you water and forget. The seeds you planted three years ago will sprout when you least expect them.

This engineer’s approach is brutally simple: add a #publish tag to a note, run make deploy, and it’s live. He uses Quartz and Hugo, hosts on his own server. The whole thing is open source. But the tech is the boring part. The interesting part is the philosophy: he doesn’t curate for public consumption. He publishes raw, unpolished thoughts. The public version is just a slice of his private chaos. And that’s the point.

If you’re waiting for your notes to be perfect before you share them, you’re waiting forever. The best ideas come from showing your work mid-process, not after the fact.

So here’s the question: what are you collecting today that you’ll only understand in 2035? And are you willing to trust the process?

FAQ

Q: What if I don't have 15 years of notes? Can I still benefit from this approach?

A: Absolutely. The time horizon is not the key; the habit is. Start now, even with a single note. The compounding effect begins the moment you start writing consistently. The longer you wait, the later your first 'collision' will happen.

Q: What's the practical implication for someone who wants to publish their notes?

A: Don't try to polish everything. Use a simple publish flag (like #publish) and a static site generator. Let your notes be raw and imperfect. The value is in the connections readers can make themselves, not in a perfectly curated essay.

Q: Isn't this just hoarding information? What's the difference between a second brain and digital clutter?

A: The difference is intentionality. Hoarding is collecting without reflection. A second brain means you actively revisit, connect, and synthesize. The author wrote 8,360 notes but only published 660 — the ones that survived his own filter. The test is: does a note spark a new connection when you reread it? If not, it's clutter.

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