For a long time, the DeFi ecosystem has revolved around a single number: APY. Dashboards display it prominently, protocols promote it aggressively, and users often compare opportunities based purely on which platform offers the highest yield. At first glance, this makes sense. If one strategy offers 6% and another promises 20%, the choice seems obvious. Higher APY should mean better returns. But in reality, APY is one of the most misunderstood metrics in DeFi. Experienced capital allocators d...