Yes, through the testnet. Mock USDC, the live interface, real liquidations — no capital at risk.
What paper trading teaches well
Mechanics. Order types, margin modes, how a liquidation price moves as you adjust leverage, what happens when funding flips against you. Every trader should get those wrong on testnet rather than with money.
Where it stops resembling reality
Two gaps.
Liquidity. Testnet books are thin. A market order that fills cleanly there can cost several percent in slippage live. Any approach that looked profitable on testnet fills hasn’t been tested against execution cost.
Psychology. Mock funds produce decisions real capital doesn’t. Traders hold losers longer, size larger and take risks they’d never take live — then conclude the strategy works.
What paper trading can’t do
Validate a strategy. Edge is measured net of real execution cost over a sample long enough to mean something. Neither is available on testnet.
That’s why live, dated, published track records carry weight that no simulation can.