When to use this combo
You suspect your team's reasoning is being distorted by cognitive biases — continuing failed projects because of sunk costs, drawing conclusions from incomplete data, or optimizing metrics that no longer matter. You need tools to catch these traps before they cause damage.
Is this combo right for you?
Use this combo if you're a critical thinker who worries about the quality of reasoning, not just the quality of data. You've seen smart people make terrible decisions because of invisible biases. If you regularly ask "Are we being rational, or are we rationalizing?" — these tools will help you catch what others miss.
Step-by-step walkthrough
Check for Survivorship Bias — are you drawing conclusions only from successes while ignoring failures? Ask: "What would the failures tell us?" and "Are we seeing the full picture, or just the survivors?"
Identify Sunk Cost Fallacy — are you continuing a project, strategy, or hire because of what you've already invested rather than future expected value? Ask: "If we were starting from scratch today, would we choose this path?"
Watch for Goodhart's Law — have your metrics become targets? When a measure becomes a target, it ceases to be a good measure. Ask: "Are we optimizing the metric, or the outcome the metric was supposed to represent?"