Cognitive Rarity · Feb 2026
Deep Work
Coined by Cal Newport, Deep Work is the ability to focus
without distraction on a cognitively demanding task. In a world of
notifications, it is a rare and valuable asset. CLN is a Deep
Work tool: it strips away the "shallow" decisions of formatting to let you focus
on the "deep" logic of meaning.
01/The Deep/Shallow Divide
+ Deep
Work: Coding, strategy, complex learning. (Hard
to replicate, high value).
- Shallow
Work: Email, formatting, logistical meetings.
(Easy to replicate, low value).
!
Insight: Busyness is not productivity. Most
"work" is just logistical noise.
02/Attention Residue
Sophie Leroy, 2009
CORE LOGIC
FORMATTING DECISION
When you switch tasks (even for a second to pick a font), your attention stays behind. CLN eliminates these micro-switches by automating formatting decisions via operators.
03The Rules of Depth
. 1. Work
Deeply: Build rituals to minimize willpower
drain.
. 2. Embrace
Boredom: Train concentration by resisting quick
stimulation.
. 3. Quit
Social Media: Does this tool directly serve
your success?
. 4. Drain
the Shallows: Schedule every minute to preserve
deep hours.
04CLN: Weapon Against the
Shallow
+ Decision
Minimalist: CLN operators remove the
"Shallowness" of styling.
+
Density: Forces the author to condense thought,
which is a Deep Work exercise.
*
Self-Test: Why does CLN refuse to let you hide
behind prose? || Because
prose allows for "vague thinking." CLN's structure
demands clarity, which is the most cognitively demanding
— and valuable — part of work. ||