Principle 06
Act, test, and update.
Prefer small, reversible tests when possible. Measure the effect. Escalate when the evidence justifies it.
Explanation
Action produces new information. The responsible loop is to act with a clear hypothesis, measure the result, and update the model rather than defend the original idea.
Example
A controlled change can reveal whether a suspected dependency causes a regression without committing the whole system to a permanent removal.
Practical implication
Define success, failure, duration, and rollback before running a test.