Cameron rejected the two-mass form on sight: the set-back mass read as a lump stuck to one side, and the direction is symmetric and futuristic. The three rejected passes were one failure, not three. Each tried to make the machine interesting by displacing something — plates stepping past the aperture on one side, an opening pushed off-axis, a second mass set back and lower. On a clinical white object any displacement reads first as a defect and only second as an intention. The corpus had been pushing that displacement since 2026-07-28, down to the direction reference's own filename. The machine is now one centred mass, bilaterally symmetric: a single shared corner radius on all four verticals broken into facets so edges take light as a gradient, an even taper, a centred aperture keeping the two-step counterbore, and a mirrored pair of full-height lit slots flanking it for the distance state read. The second mass, service channel, off-axis offsets, unequal radii, and base intakes are gone. Defense: implements "Symmetric is the constraint (2026-08-03)" in wiki/interface/computer-visual-language.md, which supersedes the asymmetry language throughout that spec — the 2026-07-28 unequal-arc clauses, the 2026-08-02 unequal-chamfer and off-axis clauses, and the same-day two-mass amendment. The chassis summary, the B1 body paragraph, and the reference note are amended to match rather than left in contradiction. Invariants now assert the instrument is on the axis and the aperture margins are equal, where they previously required both to differ.