Coaching practices for How to Avoid Scale Errors

Describe almost anything you are working through and IX Coach finds the practices whose real-world fit is closest. For How to Avoid Scale Errors, these are the strongest matches in the current practice library.

Does this sound like the set of challenges you might be facing?

• My answer came out wildly off and I can feel that it’s wrong but can’t spot where
• I read "thousands affected" and feel a pang, then "hundreds of thousands" and feel that exact same pang
• I make calls about how things will go all the time, but I never write them down or check them after
• I catch myself shaving down the estimate I’m about to present
• My guesses never seem to get any better because I make them, find out the real answer, and then just move on

Practices that may help

1. Check units and scales for consistency
   Catch order-of-magnitude errors by ensuring your units are consistent across the estimate.
   Fermi Estimation
2. Translate scale into numbers before you respond
   Before reacting to any quantity-based problem, convert the scale into a concrete number you can compare.
   Scope Insensitivity: Why Scale Doesn’t Change Your Feelings
3. Score your own past predictions to calibrate your outside-view use
   Keep a forecast log and score it — you cannot improve calibration without feedback on where you were over- or under-confident.
   The Outside View
4. Scope Insensitivity: Why Scale Doesn’t Change Your Feelings
   Scope insensitivity is the tendency to react with nearly the same emotional intensity to problems of vastly different scale — to care about 2,000 birds in danger nearly as much as 200,000 birds. Identified by Kahneman and colleagues, it is one of the clearest demonstrations that moral and decision-relevant emotions respond to the image of a problem, not its magnitude. The bias has strong empirical support and has important implications for charitable giving, risk assessment, and resource allocation.
5. Distinguish cognitive optimism bias from strategic misrepresentation
   Recognize that some forecast inflation is genuine bias and some is deliberate spin — they require different fixes.
   Reference Class Forecasting
6. Track your estimates and calibrate
   Compare your Fermi estimates to actual figures when you can, and use the gap to improve future estimates.
   Fermi Estimation
7. Treat forecasting accuracy as a skill that improves with practice
   Take prediction errors as performance feedback, not as proof that forecasting is futile.
   Superforecasting
8. Anchor on the base rate before adding inside-view details
   Start your forecast from the class median, then adjust — do not start from your narrative and adjust to the base rate.
   Reference Class Forecasting
9. Log actual vs. estimated time for every task
   Build a personal database of your own estimation errors so you can calibrate future predictions.
   The Planning Fallacy — Why Your Estimates Are Always Wrong
10. Build calibration reps with low-stakes trivia and almanac questions
    Use factual trivia questions as a practice ground for calibration — outcomes resolve immediately and the stakes are zero.
    Calibration Training

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