The organization treats estimates as certain when they are inherently uncertain

Distinctions

Is

ISIn Practice
Expressing uncertain outcomes as exact values“We will finish on March 18th”
Overstating accuracy beyond what data supportsGiving exact numbers from rough estimates
Collapsing variability into a single-point estimateOne date, one number
Treating estimates as facts“That’s the plan” becomes “that’s reality”
Using precise language without confidence levelsNo mention of risk or probability
Creating illusion of certaintyStakeholders believe outcomes are predictable
Ignoring or hiding uncertainty and variabilityNo ranges, no error margins
Encouraging commitment to guessesPlans treated as guarantees
Mistaking precision for accuracyMore decimals = “more correct”
Simplifying complexity into deterministic outputsComplex systems reduced to fixed timelines

Is Not

IS NOTIn Practice
Probabilistic forecasting“85% chance by end of March”
Expressing ranges with uncertainty20–25 items instead of 23
Explicit acknowledgment of variability“This depends on X and Y”
Confidence-based communication50%, 85%, 95% scenarios
Rough estimates presented honestly“This is a rough guess”
Scenario planningBest / likely / worst with rationale
Adaptive forecastingUpdating based on new data
Separating forecast from commitment“This is not a promise”
Data-limited humility“We don’t have enough info to be precise”
Accuracy over precisionLess exact, more truthful

Boundary

Systems

Relationships

RelationshipConceptRationale
mitigated byProbabilistic Forecasting

Perspectives

StanceWho (Point)What They See (View)Optimize ForInsightBlind Spots

Works Consulted

  1. Story Points Are Not the Problem, Velocity Is