Today, yield is everywhere—displayed as clean APYs, updating in real time, and packaged into simple “deposit → earn” flows. It feels like finance has been reduced to a few intuitive actions. But the more time you spend in these systems, the more you realize that simplicity is mostly on the surface. Underneath, the mechanics remain complex—and often invisible.The Illusion of Effortless YieldThe first thing you notice in DeFi is how easy it feels. You deposit assets and immediately start earnin...