Tools by Application¶

Browse tools by the problem you're trying to solve.

Making Predictions¶

When you need to forecast future events or outcomes with limited information

• Proportional Belief Updating - Update confidence as new evidence arrives
• Ensemble Thinking - Combine multiple models for robust predictions
• Analysis of Competing Hypotheses (ACH) - Systematically evaluate alternative futures
• Probabilistic Scenario Planning - Map multiple possible outcomes with probabilities
• Outside View / Reference Class Forecasting - Use historical base rates to calibrate predictions

Diagnosing Problems¶

When you need to identify root causes or explain observations

• Differential Diagnosis Generation - Generate and test competing explanations
• Structural vs. Cultural Root Cause Analysis - Trace chains of causation to underlying factors
• Analysis of Competing Hypotheses (ACH) - Systematically evaluate alternative explanations
• Anatomical Localization - Narrow possibilities by identifying constraints
• Behavior Over Time Graphs (BOTG) and Causal Loop Diagrams (CLD) - Visualize causal relationships and feedback loops

Designing Solutions¶

When you need to create something new or solve a novel problem

• Assumption Testing - Validate critical assumptions before full commitment
• Rapid Prototyping - Test ideas cheaply and quickly
• Pre-mortem Analysis - Imagine how designs could fail before building
• Need-Solution Separation - Understand user needs and constraints
• Exaptation and Functional Shift - Repurpose existing solutions for new problems

Making Decisions Under Uncertainty¶

When you need to choose between options with unclear outcomes

• Expected Value Decomposition - Weigh outcomes by probability and value
• Information Value Calculation - Decide whether to gather more information first
• Opportunity Cost - Account for what you give up by choosing
• Base Rate Anchoring - Start with category frequencies before adjusting
• Return-Risk Trade-Off - Compare options accounting for uncertainty

Persuading and Influencing¶

When you need to change minds or shape behavior

• Audience Modeling (Understanding Starting Beliefs) - Tailor arguments to starting assumptions
• Costly Signal Recognition - Make commitments credible through sacrifice
• Framing Effects - Present information to highlight desired interpretation
• The Three Appeals (Ethos, Pathos, Logos) - Balance credibility, emotion, and logic
• Loss Aversion and Reference Dependence - Frame choices to leverage loss sensitivity

Learning and Skill Development¶

When you need to acquire expertise or improve performance

• Spaced Repetition Scheduling - Schedule practice for optimal retention
• Deliberate Practice Identification - Focus effort on weaknesses with feedback
• Retrieval Practice Emphasis - Test yourself to strengthen memory
• Chunking Analysis - Build mental patterns for complex tasks
• Periodization Planning - Cycle training intensity for peak performance

Understanding Complex Systems¶

When you need to make sense of interconnected dynamics

• Stock-Flow Distinction - Distinguish accumulations from rates of change
• Feedback Loop Identification - Find reinforcing and balancing cycles
• Centrality Measures (Multiple Flavors) - Identify critical nodes and bottlenecks
• Trophic Cascade Tracing - Trace indirect effects through system levels
• Delay Recognition and Classification - Account for delayed responses to changes

Allocating Resources¶

When you need to distribute limited time, money, or attention

• Marginal Thinking - Compare incremental costs and benefits
• Bottleneck Identification (Theory of Constraints) - Find and address limiting factors
• Diversification Logic - Spread risk across uncorrelated options
• Sufficientarianism and Threshold Principles - Account for diminishing marginal utility
• Pareto Efficiency and Trade-off Surfaces - Optimize under multiple constraints

Validating Claims and Evidence¶

When you need to determine what's true or verify information

• Randomization - Isolate causal effects from confounders
• Credibility Triangulation - Corroborate claims across independent sources
• Argument Mapping (Premise-Conclusion Structure) - Make reasoning explicit and testable
• Invariant Identification - Identify properties that must always hold
• Blinding - Eliminate observer bias from measurements

Managing Conflict and Competition¶

When you need to navigate adversarial or strategic situations

• Backward Induction - Reason forward from end states to current choices
• Concentration of Force - Mass advantages at decisive points
• Burden Allocation - Understand who must prove what
• Mixed Strategy Equilibrium Finding - Randomize to avoid predictability
• Commitment Device Design - Constrain future options to gain credibility

Coordinating Groups¶

When you need to align people toward shared goals

• Incentive Compatibility - Design systems where honesty is optimal
• Psychological Safety Audit - Create conditions for candid communication
• Checks and Balances - Distribute power to prevent abuse
• Common Knowledge and Coordination - Establish shared understanding for joint action
• Boundary Spanning Role Identification - Reduce conflict through clear responsibilities

Recognizing Patterns¶

When you need to identify structures or make classifications

• The Bias-Variance Tradeoff - Balance model complexity with generalization
• Base Rate Integration - Weight evidence against prior probabilities
• Cross-Validation (Robust Performance Estimation) - Test pattern recognition on held-out data
• Chunking Analysis - Apply learned patterns to new instances
• Clustering and Community Detection - Find groups of similar or connected entities