The Bitcoin Flexible Leverage Index lets you leverage a collateralized debt position in a safe and efficient way, by abstracting its management into a simple index. It enables market participants to take on leverage while minimizing the transaction costs and risks associated with maintaining collateralized debt.The Bitcoin Flexible Leverage Index (BTC2X-FLI) makes leverage effortless. The end user does not have to worry about: Monitoring their leveraged loan 24/7, having to always be ready to act. High fees, transactions not being included fast enough or the relative UIs being unresponsive during times of high volatility. Paying for overpriced stablecoins to deleverage on time or panic trading to save their positions. Users don't have to manage their liquidation ratio since this is automatically managed by FLI, which drastically reduces liquidations, even during black swan events. BTC2X-FLI has several key advantages over Legacy Leveraged Tokens: Zero slippage via composable entry and exit. Unique Index algorithm reduces rebalancing needs by an order of magnitude. Emergency deleveraging possible during Black Swan events for additional fund safety.