Introduction
Decentralized Finance (DeFi) has sparked a story of exponential growth through a series of simple yet powerful economic primitives, transforming blockchain networks into a global permissionless market and fundamentally disrupting traditional finance. In the rise of DeFi, several key metrics have become the universal language of value: Total Value Locked (TVL), Annual Percentage Yield (APY/APR), and liquidity. These concise metrics inspire participation and trust. For instance, in 2020, DeFi's TVL (the dollar value of assets locked in protocols) soared 14 times, then quadrupled again in 2021, peaking at over $112 billion. High yields (some platforms claimed APYs as high as 3000% during the liquidity mining craze) attracted liquidity, while the depth of liquidity pools signified lower slippage and more efficient markets. In short, TVL is a