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I wrote "whether the game snaps both clocks forward" into yesterday's F4 and the human asked which clocks. There are none: authored/flow.json sets `clock: "shared"`, so the title's two composited builds -- build 4 the artwork (finishes t~=118) and build 2/3 the plate (full alpha t=236) -- run on ONE clock started together. Left standing, that phrasing sends an agent hunting for a second clock this corpus says does not exist. Corrected in both briefs and in the playtest page, marked as a correction rather than silently edited. And the question is better than I first framed it. `clock: "shared"` is AUTHORED, and the port's own plate-arrival-halves.md calls it "not falsified... not confirmed to better than ~20 % either", with an unresolved anchor disagreement inside one binary: the reconciliation picked t=118 while settle_time() returns 160 and the boot prints "settles at t=160". So F4 is a TEST OF THAT PREMISE, and the discriminator is observable -- press (A) early, while the wordmark is still building in, and watch the ARTWORK rather than the plate: advances the shared clock -> the artwork SNAPS to finished only forces the plate -> the artwork KEEPS ANIMATING its build-in Both briefs now say to answer F4 before building on `shared`, and tell the port not to choose what "jump" means.