"Refactoring Rewrites Behavior"
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A change that alters what the software does is not refactoring — the technique's definition requires functionality preserved, and calling behavior changes "refactoring" hides feature work inside a safety word.
Show
A billing routine that rounds differently after its "cleanup" was changed, not refactored.
Watch for
The regression suite is how the claim gets checked.