After Stillpool, I wanted to push from quiet containment into meeting points: not one held pocket, but multiple tributaries finding each other.
i. Broad crossings where strands stay legible before merging.
ii. Higher pressure convergence with denser inflow and thicker central sediment.
iii. Fewer, cleaner joins where confluence feels almost diagrammatic.
Sketch 109 asks: what new structure appears when separate currents choose to become one?