Theory experiment · one order · two simultaneous reads

Coupled Read

Two reads move together across the same order — the plain telling and the structural crossing. Neither is the source. Where they pull apart, the order shows itself.

The order, by carrying mode

Carry ⇝ Carrying ⇝ Participation ⇝ Nesting ⇝ Retracing

Structural read · the crossing

Trace — backward, what holds it

Carry — forward, across the crossing

The crossing is the structural read; the sentence is the telling. Both are generated from the same placed Atlas terms, and both change on the same beat. The trace and carry below are the one crossing read backward and forward.

One connection, two directions. Carrying changes mode at each crossing; the trace stays followable, or it doesn't — and that is the evidence.