A four-step method for converting a spec sheet into benefit-led sales copy: (1) list every technical feature of the product, (2) for each feature ask "so what?" repeatedly until it surfaces the underlying problem it solves or feeling it produces, (3) rewrite the feature as a stated benefit, (4) lead each bullet or description line with the benefit and use the original feature as supporting proof — "features tell, but benefits sell." The mechanism is the repeated "so what" question run mechanically down the entire feature list, not just a general mindset shift; illustrated with a baby-sling example (padded straps → so what → doesn't dig into shoulders on long walks) and the framing "no one cares that your product is made from 100% Turkish cotton, they care that it keeps them safe, soft, and close." Distinct from Benefit-Over-Feature Bullet Point Litmus Test, which checks whether a finished bullet already leans feature or benefit — this framework is the generative step that produces the benefit language in the first place.