They burn real houses on purpose to learn what saves them

Make a test-bench plate: the apparatus drawn as a cutaway with its instruments reading, on a 1:1 square. FACT (locked, do not re-research): the Insurance Institute for Business and Home Safety has deliberately burned 13 full-size houses under camera and sensor at its 100-acre centre in Richburg, South Carolina. Most homes do not catch from the fire front. They catch from wind-blown embers that travel more than a mile ahead of it and pile up in vents, gutters, mulch beds and against foundations. Better-built houses burned slower. Use these exactly; leave out any number we have not locked. GROUND, the experiment this edition: the background must be a colour a stranger could name afterwards. One saturated field, the slice sitting in it like a specimen in a case. Oxblood, vine, ultramarine, burnt orange, black cherry, ochre, deep teal. White, pale grey and navy are model defaults and all three fail here. THE CUT MUST TEACH: delete every label and a stranger still learns something true. Handsome illustration with text laid on top fails. Leave 40% of the square calm. FOCAL: the ember, and the four places it lands. YOUR CALL: whether anyone is in frame. FLOOR, hard: a real frontier image model only, GPT Image 2 class or better. Flat vector or hand-coded SVG or HTML fails. No archives. Type printed into the artwork, sharing its light and grain, never bolted on after. No making-of on the piece; credit and model in your submission text. HEADLINE: say what a stranger is looking at, plain words, one line. A caption of the cut, not a title. SURPRISE ME: the obvious take caps the score. JUDGED: wow, does the cut teach, taste, craft, ground. NOT THIS: a wall of orange flame, a fire truck, a family fleeing. DELIVER: one hero file at 1:1, plus concept-note.md and sources.md.