How to Use the Zettelkasten to Take Smart Notes in Mem

TL;DR

Zettelkasten in Mem treats highlights as raw material (reference notes) rather than finished knowledge.

Briefing Cornell Notes

Briefing

Zettelkasten-style note-taking in Mem turns saved highlights into reusable knowledge by forcing a rewrite step that converts raw references into insights. Instead of treating underlines and copied quotes as a searchable archive, the method builds three layers of notes—reference notes, literature notes, and permanent notes—so information becomes understanding, and understanding becomes something that can be used months later without returning to the original source.

The workflow starts with reference notes: the familiar material people already collect from books, podcasts, and lectures. Those snippets, by themselves, are described as weak for long-term learning because they mostly preserve context rather than generate insight. The method then pushes a transformation step: each reference highlight gets rewritten in the user’s own words to produce literature notes. These literature notes keep a link back to the original source (optionally including direct quotes), but the key requirement is the rewrite—rewriting is presented as the mechanism that reveals whether the idea has actually been understood.

From there, literature notes feed into permanent notes, which are framed as the user’s major takeaways—insights expressed as original knowledge. Permanent notes are not just re-stored highlights; they are synthesized conclusions that emerge from reviewing multiple literature notes. The result is a growing knowledge base where ideas can be retrieved and recombined without needing the original book or lecture open.

A concrete example uses the book “Little Bets” by Peter Sims inside Mem. Reference notes are created from highlights and other captured material. Literature notes are then generated by rewriting those highlights into individual insights tied back to the book. Finally, permanent notes are produced as broader, user-authored conclusions derived from the literature notes. When the time comes to write an article or blog post, the system becomes practical: instead of starting from scratch or hunting for new ideas, the writer can browse existing literature and permanent notes, connect related ideas across sources, and assemble a draft.

The payoff is framed as a major reduction in writing time. The creator describes planning a blog post about “Little Bets” as a week-long effort, then completing it in about 45 minutes after building the Zettelkasten notes in Mem. The emphasis is that the notes are not arranged in a linear sequence; the writer’s job shifts to creating structure and doing editing and expansion, while the raw material for ideas already exists in the user’s own words. Overall, the method matters because it changes note-taking from storage to synthesis—making notes useful for learning now and for producing new work later.

Cornell Notes

Zettelkasten in Mem uses a three-step pipeline to turn highlights into knowledge you can reuse. Reference notes capture underlines and other raw material from sources. Literature notes are created by rewriting those references in the user’s own words while keeping a connection to the original source, which is presented as the key to real understanding. Permanent notes then synthesize multiple literature notes into the user’s major insights. This structure makes writing faster because ideas are already organized as reusable notes rather than scattered highlights tied to old context.

Why are reference notes alone considered insufficient for long-term learning?

Reference notes are essentially stored highlights and copied snippets from books, podcasts, and lectures. The transcript characterizes them as mostly preserving context rather than producing insight. Without rewriting, they don’t reliably turn information into understanding, so they become harder to use later when the original source isn’t in front of you.

What turns a highlight into a literature note in this workflow?

A reference highlight becomes a literature note when it’s rewritten in the user’s own words. The literature note can optionally include direct quotes, but the core requirement is the rewrite plus a link back to the original source. That rewrite step is treated as the mechanism that forces comprehension rather than passive collection.

How do literature notes become permanent notes?

Permanent notes are described as the user’s major insights derived from reviewing and combining literature notes. Where literature notes focus on rewritten insights tied to sources, permanent notes represent synthesized conclusions expressed as original knowledge. In the example, permanent notes are created after accumulating multiple literature notes from “Little Bets.”

How does this system speed up writing tasks like articles or blog posts?

Once permanent and literature notes exist, writing becomes an assembly process. Instead of searching for ideas from scratch, the writer can browse a set of notes already written in their own words and connected to prior sources. The transcript reports that having these notes reduced the time to draft a blog post about “Little Bets” from about a week to about 45 minutes, with remaining work focused on structure, editing, and expansion.

What does “not linear” mean in practice for using Zettelkasten notes?

The notes are stored as a network of reference → literature → permanent entries rather than a single outline. When drafting, the writer doesn’t follow a strict sequence; they choose and connect relevant permanent and literature notes, then impose structure through editing and additional writing.

Review Questions

What specific action distinguishes a literature note from a reference note in this workflow?
Describe how permanent notes are generated from literature notes, and what they are meant to represent.
In the “Little Bets” example, how did the presence of literature and permanent notes change the writing process?

Key Points

1
Zettelkasten in Mem treats highlights as raw material (reference notes) rather than finished knowledge.
2
Transform reference notes into literature notes by rewriting each idea in the user’s own words while linking back to the original source.
3
Create permanent notes as synthesized, user-authored insights derived from multiple literature notes.
4
A well-built note network supports writing by providing ready-to-use ideas without re-reading the original sources.
5
The rewrite step is the core learning mechanism, turning stored information into understanding.
6
Because notes aren’t arranged linearly, drafting becomes an exercise in selecting, connecting, and structuring existing insights rather than starting from scratch.

Highlights

The method’s central move is rewriting highlights into literature notes; comprehension is treated as something produced by the rewrite, not by storage.

Permanent notes are positioned as the user’s major insights—knowledge that can be reused months later without returning to the original book.

In the “Little Bets” example, building the Zettelkasten notes in Mem reduced a planned week of writing to about 45 minutes for a blog post draft.

Topics

Mentioned

Sönke Ahrens
Peter Sims
Srini