Yield Farming's Sustainability - Are We Just Kicking the Can Down the Road?

Been watching the DeFi space pretty closely, especially the talk around sustainable yield. It feels like a lot of the higher APYs we're seeing, even on seemingly robust protocols, are inherently reliant on continuous new capital influx or inflationary tokenomics that might not hold up over the long run. There's a narrative that some of these mechanisms are innovative, but I can't shake the feeling that at a fundamental level, we're still often just moving value around rather than truly creating it, especially once the hype cycle mellows out. Contrast that with something like traditional equity; you've got $SAP today up over 4% to 179.17, reflecting actual business performance and growth. I'm wondering if DeFi yield farming, for all its sophistication, isn't just a very elaborate game of musical chairs that ends when the music stops. I'm sure many will disagree, and I'd be genuinely interested to hear the counter-arguments on why this isn't the case or what I'm missing.