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Marginalia
No. 01 — The Slip-Box

A second brain, the old way

Every idea you've ever had,
on a card.

Marginalia is a digital slip-box. Write thoughts as atomic notes, drop them in the box, and let the links do the remembering. Your mind stays free for the thinking.

Start your slip-box →
0142

Fleeting — 03 Mar

attention as a budget

what if focus isn't a state but a currency you spend? link to the willpower note & the cost-of-context note.

0141

Reference

cost of context

switching tasks leaves residue. the previous task keeps a share of attention for ~15 min.

0143

Permanent

A note is a question

The best notes don't answer things. They hold a question open long enough for the next idea to land in it.

links: 0142 attention as a budget
      0089 willpower as fuel

The method, in three cards

01

Fleeting

Catch the thought before it leaves. A scratch note, undated, unpolished — good enough to recognize later is enough.

02

Permanent

Rewrite it in your own words. One idea per card, self-contained, so it still makes sense a year from now.

03

Connect

Link it to what you already know. The box finds the patterns you'd forget — that's the whole point.

Niklas Luhmann wrote 90,000 cards in a wooden box and published 70 books. The system, not the genius, did the work.

From the slip-box, 1952–1998

Open the box. Leave the remembering to it.

Start your slip-box →
Marginalia — a second brainIteration 01 / 05