Fashion’s rulebook is overdue for an audit: half its laws were etiquette fossils (no white after Labor Day), a quarter were body-policing in a trench coat, and the surviving few are just physics. The audit: what retired, what stays and what replaces the book.

The Obituaries

The retired laws: no white after Labor Day (a century-old class signal, fully expired — winter white is a styling category now), no mixing metals or navy-with-black (both currently editorial-approved — the bridge clause and the tonal-depth read), matching bag to shoes (retired for decades), and the age-limit rules (the ageless-style files hold the full funeral).

The Physics Keepers

The rules that survive because they’re geometry, not etiquette: horizontal lines widen where they land (a fact, applied by choice), one statement per outfit composition (attention arithmetic), fit outranks everything (the shoulder seam doesn’t negotiate), and the occasion-respect floor (the venue’s physics and formality minimums — less rule than courtesy).

The Rebrand Cases

The rules that survive REPHRASED: ‘flattering’ rebuilt as ‘creates the effect I want’ (the proportion sovereignty doctrine), ‘dress your age’ rebuilt as ‘dress your life’ (calendar-fit over birth-year), and ‘quality over quantity’ kept but audited (the cost-per-wear math beats the slogan).

The Replacement

What governs after the rulebook: personal rules derived from evidence (the fitting-room photo lab, the compliment audit, the uniform formula — style laws written by your own data), and the one meta-rule: deliberateness reads as style at any rule-compliance level (the broken rule worn on purpose beats the kept rule worn by fear). The audit’s verdict: keep the physics, fire the etiquette, write your own book.

Retire the etiquette, keep the geometry, write personal law from evidence. The rulebook was always two books interleaved — the audit just separates physics from fossils.