Framework of Frameworks · Feb 2026
Mental Models
! 80 or 90 models will carry about 90% of the freight @ Charlie Munger
A mental model is a simplified representation of how something works. To the man with only a hammer, every problem looks like a nail. CLN helps you build a diverse toolbox of models to see reality more clearly.
01/The Anatomy of a Tool
= Fundamental: Not derived from other models.
= Broadly Applicable: Works across different domains.
= Predictive: Helps you guess what happens next.
INERTIA
ENTROPY
EVOLUTION
PARETO
INVERSION
FEEDBACK
02/Core Disciplines
. Physics: Leverage, Critical Mass, Inertia.
. Biology: Evolution, Red Queen Effect, Mimicry.
. Economics: Opportunity Cost, Compound Interest.
. Systems: Feedback Loops, Bottlenecks, Second-order Effects.
03/Applying Models in CLN Structural

CLN turns a "note" into a "multi-lens analysis":

| Use the pipe operator to "import" a model into your problem.
. Write how that specific model changes your perspective.
* Self-Test: Why do we need multiple models? || To avoid the "man with a hammer" bias and gain depth perception of reality. ||
04Decision Analysis Example
= PROBLEM: Launching a new product.
| Opportunity Cost: Delaying loses early revenue.
| Second-order Effects: Rushed launch may lead to long-term bad reviews.
| Inertia: Stopping now would kill team momentum.
. Synthesis: Launch core MVP, iterate fast.