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When the Federal Reserve's policy stance shifts, the market immediately starts imagining all kinds of miraculous scenarios—emergency rate cuts, negative interest rates, listeners get fired up. But these rumors are at best just stories on paper. What truly matters is: once traditional finance enters a rate-cutting cycle, will borrowing costs in DeFi follow suit?

The answer is not necessarily.

Protocols like Lista DAO with adaptive interest rates are a perfect example. They don't care about the Fed's face; they only look at the real-time supply and demand in on-chain liquidity pools. The algorithm has no temperature; it operates purely on logic. Usually, the goal is to keep borrowing rates below 2%, but once the market floods in, users pile collateral and borrow stablecoins to leverage, the pool utilization rate skyrockets, and the system's penalty mechanisms automatically trigger.

At that moment, what will you see? Borrowing costs jump from 1% directly into double digits—sometimes even exceeding 10%.

Many people get caught here. They follow the trend, thinking only of "policy benefits" and the "era of negative interest rates," while ignoring a critical problem: DeFi interest costs can suddenly explode when you're not paying attention, and no one can predict how long that will last. The stable arbitrage space you originally envisioned can be wiped out in an instant.

So my approach is simple and straightforward: no matter how loud the positive news outside sounds, I first run my own stress test. The core question is—if borrowing costs stay above 10% for the next month, can I still keep this position alive? If the books don't balance, I won't touch any more tempting opportunities.

In the DeFi world, code is the central bank, and it never shows mercy.