Use this concept as a question to test the decision, not as a label for a person.
Open →Decision situation
Forecasting under uncertainty
Make a forecast that can later be checked, updated and learned from.
Signals to notice
Reasons to slow down and check.
- A forecast is expressed as one precise number.
- The latest event dominates the probability estimate.
- Assumptions are not recorded before the outcome.
Questions before action
Make the missing evidence visible.
- What reference class is available?
- What range is more defensible than one point estimate?
- What new evidence should trigger an update?
Relevant lenses
Concepts that may help you test the reasoning.
Practical moves
Do something different, not only notice a label.
Use outcomes from comparable completed cases before refining an inside-view plan.
Open →Compare a vivid case with the broader frequency or distribution that should inform the judgment.
Open →Decide in advance what evidence should cause a forecast or decision to change.
Open →Skill to develop
Forecasting
You can produce forecasts that are easier to challenge, compare and learn from later.
Practice this situation
Choose a useful first move.
Sales rose sharply last quarter. The new annual forecast assumes the same growth will continue, although the wider history is more variable.
Skill: ForecastingOpen scenario →A team estimates a 25% chance that the project will be late. When asked separately, it gives 20% to supplier delay, 20% to testing delay and 15% to staffing delay, with overlap left undefined.
Skill: ForecastingOpen scenario →A forecast missed badly. After the outcome, the owner says the result was always possible and that the original forecast should be read more generously.
Skill: ForecastingOpen scenario →