Status: IN
Composition's scalability is simultaneously validated and structurally bounded: doubly grounded in theory and practice (four independent evidence lines plus sharing infrastructure), while the Prototype-Flyweight identity spectrum defines the concrete operational boundaries within which sharing-based scaling operates — full independence at one extreme, maximal sharing at the other.
Composition scalability is validated by multiple evidence lines and bounded by the identity spectrum
Depends on (SL): composition-scalability-doubly-grounded, identity-spectrum-bounds-composition-scalability