Charles Atlas comic-strip ad, Slave Girl Comics #2 p.51
The pattern
This still is filed under If-then promise.
Define
A conditional contract: if you do this, you get that. The sentence can be tested against the reader's own case.
Mechanism
Specificity does the persuading. The if names the action. The then names the outcome. Hedging kills it.
Verdict
We can name both the action and the result without adjectives
Why it works
The headline is a line the reader has heard said about himself, quoted in the voice of a man who has already escaped it, so shame and aspiration are delivered in the same sentence. The specific number, ninety-seven pounds, does what "skinny" cannot: it makes the claim checkable and repeatable, and it became the campaign's asset. The body copy sells the method by what it removes, no gadgets, no contraptions, no gym, only fifteen minutes in the privacy of your own room, which answers the real objection of a reader too embarrassed to be seen training. The ask is a free book rather than a course, so responding does not require admitting to a purchase.
Steal this when
Use this when your customer's problem is one they are quietly ashamed of and your founder or a customer has publicly escaped it. Lead with the insult in their own ear, attach a hard number to it, and make the first step private and free.