Lessons tagged “validation”
20 published lessons with this tag.
Schemas must be tested against reality
An untested schema is a hypothesis not knowledge.
Falsifiability makes a schema scientific
If no possible observation could prove your schema wrong it is not a useful model.
Design experiments for your schemas
Create specific tests that would show you if your mental model is accurate.
Predictions test schemas
If your schema is correct it should make accurate predictions about what will happen next.
Failed predictions are data not failures
When your prediction is wrong you have learned something about where your schema is off.
Edge cases stress-test schemas
Unusual or extreme situations reveal where your schema breaks down.
Other people test your schemas
Explaining your schema to someone else and hearing their objections is a form of validation.
Reality testing through action
The most reliable way to test a schema is to act on it and observe the results.
Validate schemas incrementally
Test the smallest piece of your schema first before relying on the whole structure.
Distinguish validation from confirmation
Looking for evidence that supports your schema is not the same as rigorously testing it.
Red team your own schemas
Deliberately try to break your own mental model before relying on it.
Schema validation has a cost
Testing takes time and energy — validate the schemas that matter most first.
Some schemas cannot be validated directly
When direct testing is impossible look for indirect evidence and converging indicators.
Peer review for personal schemas
Having trusted people review your mental models catches errors you miss.
Document your validation results
Recording what you tested and what happened creates a validation history.
Validated schemas still have limits
Even a well-tested schema may fail in new contexts or at different scales. Validation tells you where a schema works, not that it works everywhere. The boundaries of your tested conditions are the boundaries of your warranted confidence.
Validation builds warranted confidence
Confidence based on tested schemas is categorically different from confidence based on untested assumptions.
Invalidation is more informative than validation
Finding out your schema is wrong teaches you more than confirming it is right.
Continuous validation not one-time testing
Schemas need ongoing testing because the world they model keeps changing.
Schema validation is epistemically honest
Testing your beliefs against reality is the core practice of intellectual integrity. Epistemic honesty is not a personality trait — it is a discipline you build by systematically subjecting your schemas to evidence, welcoming disconfirmation, and refusing to protect comfortable models from uncomfortable data.