> ## Documentation Index > Fetch the complete documentation index at: https://meta.niceshare.site/llms.txt > Use this file to discover all available pages before exploring further. # Models · Mental Models & Transferable Thinking Structures > 35 transferable mental models — reusable cognitive tools for decomposing complexity, making better decisions, and understanding how systems work across any domain. ## What are Models? A model is a **transferable, simplified structure of complex reality**. A good model doesn't aim to describe reality completely — it distills the most critical structural relationships so you can quickly understand and apply them across different domains. > All models are wrong, but some are useful. — George Box Models are "design patterns" — just as a programmer doesn't reinvent sorting algorithms from scratch, a clear thinker shouldn't rebuild frameworks for understanding the world from zero every time. **This category covers 35 core mental models**, organized into four groups: * **Decision Models**: make more rational choices under uncertainty * **Systems Models**: understand how complex systems operate * **Game Theory & Economics**: understand conflict, cooperation, and incentives * **Analytical Frameworks**: systematically analyze situations *** ## Decision Models Build a reusable library of cognitive frameworks Every choice has a hidden cost — what you didn't choose Evaluate options by probability-weighting each potential outcome Project to age 80 — which choice will you regret least? Visualize decisions, chances, and outcomes in a branching structure Classify tasks by importance and urgency to prioritize action Observe, Orient, Decide, Act — a rapid response cycle Balance exploring new options against exploiting what already works Leave buffer between your estimate and reality Know the boundaries of your expertise; act within them *** ## Systems Models Positive loops amplify; negative loops stabilize Consistent small efforts accumulate into unstoppable momentum Exponential growth: the magic of time × consistency Growth follows a slow start → rapid expansion → plateau arc The more users, the more valuable the product Understand the relationship between accumulated quantities and rates of change Visualize how system variables influence each other A description of reality is not reality itself Visible events are driven by deeper, invisible structures Some systems don't merely survive disorder — they benefit from it *** ## Game Theory & Economics Why rational individuals fail to achieve optimal cooperation A state where no player can improve by unilaterally changing strategy How shared resources are depleted by self-interested behavior How misaligned incentives lead to organizational failure How prices balance supply and demand Rare, high-impact events that are rationalized only after the fact The bell curve that governs countless natural phenomena Extreme events are far more common than normal distributions predict *** ## Analytical Frameworks From physiological survival to self-actualization — a pyramid of human needs Systematically evaluate Strengths, Weaknesses, Opportunities, and Threats Five dimensions for analyzing competitive industry structure Classify business units by market growth rate and relative share Categorize problems as Simple, Complicated, Complex, or Chaotic A model for understanding self-awareness and mutual understanding How new ideas spread through populations over time