Ad Microtargeting: Field & ROI Frontier (2D)

This 2D companion lays the same 1,600-person population directly on a flat political-lean / media-trust grid — no 3D scene, no camera, just a colour-mapped scalar field — and runs the identical exposure and bounded-confidence belief-update rules as the 3D version. Launching a campaign pulse spends the same fixed budget either broadcast uniformly or concentrated with a targeting kernel on the most persuadable cluster, and the field reddens wherever belief has shifted toward the campaign's message. Beneath the field, a live analytic frontier curve sweeps every targeting precision from 0% to 100% at your current budget, intensity and disclosure settings and plots the resulting ROI and reach for each — a parameter-space view of the entire efficiency trade-off that a single snapshot (2D or 3D) can't show on its own.