Diagram of the Causes of Mortality in the Army in the East - the coxcomb / polar-area diagram
The pattern
This still is filed under Image carries the claim.
Define
One image does the entire argument. Copy, if any, is a caption, not a second ad.
Mechanism
Pictorial claim. The picture is readable as a sentence. If we need a paragraph, we picked the wrong picture.
Verdict
The idea is visual and the surface is a poster, a feed, or a silent frame.
Why it works
One colour is reserved for the category that carries the argument, and that colour turns out to be almost the entire figure, so the conclusion is legible before any reading happens. Measuring all three causes from a common vertex rather than stacking them lets each cause be compared to each other cause and to itself in another month, which is what a commission arguing about attribution actually needs. Setting the reformed year beside the unreformed year at identical scale makes the intervention look like the cause of the shrinkage without a word of claim. The key pre-empts misreading by naming the exact months where two colours coincide, which is the honesty that keeps the persuasion credible.
Steal this when
Use this when the whole case rests on one component dominating a total that everyone assumes is dominated by something else: churn causes, incident causes, cost drivers, where the loss really comes from. Give the decisive component its own colour, hold every period to one scale, and let the area do the accusing.