The Rationality Toolkit

Interactive games teaching the core techniques from the CFAR (Center for Applied Rationality) Handbook. Think better. Plan better. Decide better.
6 Interactive Games
Based on the CFAR Handbook rationality techniques
Game 1

The Plan Machine

TAPs, Systemization, Five-Second Versions
"If [trigger], then [action]." Wire autopilot rules that actually fire.
You're a behavior programmer wiring up autopilot rules for a character who keeps failing goals because they rely on willpower. Build TAPs, test triggers, chain reactions.
TAP Wiring Trigger Rating 5-Second Timer
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Game 2
💥

The Failure Simulator

Murphyjitsu, Inner Simulator, Pre-Hindsight
"If this plan fails, what was the most likely reason?"
You're a mission planner testing plans before executing them. Your inner simulator can predict crashes -- but only if you ask the right questions. Iterate until bulletproof.
Estimation Game Surprise-O-Meter Murphyjitsu Loop
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Game 3
🧰

The Crux Finder

Double Crux, Internal Double Crux, Focusing
"What evidence would change your mind?"
You're a belief archaeologist digging beneath surface disagreements to find hidden load-bearing beliefs. Excavate the iceberg, flip beliefs, and watch conclusions cascade.
Crux Excavation Belief Flipping Body Scan
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Game 4
🌳

The Goal Tree

Goal Factoring, Aversion Factoring, Units of Exchange
"Two kids want one orange. Is there a third path?"
You're an optimizer helping characters stuck in false dilemmas. Goals are trees with branches you can prune, graft, and reroute. Decompose aversions. Find the exchange rate.
Orange Parable Aversion Decomposition Exchange Sliders
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Game 5
🎯

The Proxy Trap

Goodhart's Law, Bucket Errors, Taste Shaping
"When a measure becomes a target, it ceases to be a good measure."
You're navigating a world of proxy traps -- where metrics diverge from goals and labels diverge from reality. Your compass (Polaris) keeps you oriented on what actually matters.
Goodhart Machine Catch the Swap Polaris Check
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Game 6
🏋

The Thinking Gym

Turbocharging, CoZE, Deliberate Performance
"Most people train wrong -- they practice the wrong things and stay comfortable."
You're training at a cognitive gym. Discover why practice doesn't transfer, map your comfort zone, and learn to stretch into the learning edge without hitting panic.
Transfer Test Comfort Zone Map Gears vs Faith
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