Locked working definition
The Bridge is preserved relational history made active in the present.

Refined principle
Distinct participants may contribute different forms of attention, association and structural interpretation. When these contributions are recognised, preserved and consequentially reused, their interaction may develop meanings that neither produced independently in that form. These roles need not be fixed, and the resulting interpretation remains open to correction.
The human may surprise the Bridge with salience. The AI may surprise the Bridge with structure. Humans also supply structure, and an AI output can introduce an unexpected association. Neither role is exclusive.
Version 1.1 fixes this wording for reference. It does not close the proposition, establish originality, or add a literature review or a controlled experiment.

Figure 1 from the note. Preserved history can shape what is noticed. The resemblance alone is not recognition and not consequential reuse.
Download the PDF — Complementary Salience v1.1