理性群

So they started building something simple. No flashy interface. Just a few basic input fields: principal, leverage, entry price, stop-loss, funding rate, and reserved margin. With one click, it would show liquidation probability, drawdown space, and the most dangerous add-on paths under different volatility assumptions. Ruan handled the logic and visualization. Pei filled in the trading details people usually ignored: slippage, overnight liquidity, funding accumulation, and headline-driven price shocks. They called it the `Risk Board`. The name was not cool. It was accurate. When he first shared the link, Pei Yanzhou worried nobody would care. It turned out to spread faster than he expected.