The thread highlights recent failures in the cryptocurrency sector, naming companies like Celsius, FTX, BlockFi, and others that have faced significant issues. These firms aimed to profit by offering low-interest loans to users while lending out assets at higher rates. This model created a cycle of borrowing and lending that ultimately led to a network of interdependent debts. When one firm struggled, it triggered a contagion effect, impacting multiple players in the market. The author questions the low yields in decentralized finance (DeFi) despite rising interest rates elsewhere. The implication is that the traditional model of lending in crypto has not translated into sustainable or profitable yields for users. Instead of using investments to generate returns, the focus remained on lending, which didn't provide the expected growth or stability. The thread hints at a solution with Stream, suggesting it could introduce more effective money markets to DeFi. This could potentially address some of the inefficiencies that have plagued the sector, allowing for better yield generation and a more stable financial ecosystem. The discussion points to a need for innovation in the way lending and borrowing operate within crypto to break the cycle of debt dependency.