Eli5DeFi argues Pendle has become the default fixed-rate venue for institutional yield because its PT/YT mechanism lets issuers deliver yield onchain without legally "paying" it—a structural advantage as tokenized RWAs hit $23.6B (up 66% YTD) and stablecoin yield arbitrage pulls capital from traditional banking. Four major RWA issuers (Apollo, Paxos, Strategy, Ethena) now route through Pendle, with regulatory tailwinds like the GENIUS Act (prohibiting direct issuer interest payments but not permissionless AMMs) potentially banning exchange rewards and funneling flows to Pendle's permissionless infrastructure. The setup from USDG integration ($46M TVL day one, 5.29% fixed rate), the STRC flywheel funding Bitcoin purchases and synthetic stablecoins, and Apollo's $840B credit fund wrapped on Pendle creates a connective tissue for $150B+ in yield-bearing stablecoins JPMorgan projects—though risks include STRC's leveraged BTC exposure, thin overcollateralization, and regulatory arbitrage expiring.