This DeFi farm pays 40% APY right now. And unlike most yield traps, this one's actually sustainable — let me break it down fast. Step one: bridge USDC to Arbitrum. Gas is under a dollar. Step two: go to Pendle Finance, find the fixed-yield USDC pool — APY is sitting at 40.3% right now. Step three: deposit into the PT token. This locks in your yield at a fixed rate. No impermanent loss. No liquidit…