I believe many people have encountered this situation: you deposit 10,000 USDC into Aave or Compound, and yesterday you could earn an 8% APY, planning to use these earnings to supplement your life or continue investing.

As a result, when utilization drops the next day, the yield directly falls to 3.5%.
The original plan is suddenly disrupted, and it's natural to feel uneasy.
The same applies when borrowing—taking out ETH for leveraged trading, with interest rates initially at 5%, but suddenly rising to 20% due to increased pool utilization, increasing liquidation risk, and potentially causing significant losses overnight.
These fluctuating interest rates that change every block might be acceptable for short-term speculators, but for those who want to hold long-term and carefully plan their funds, it becomes a huge burden.
Lenders can't know in advance how much they will earn, and borrowers find it hard to accurately calculate their funding costs.
In a bull market, it looks lively; but when a bear market arrives, utilization drops, and problems become exposed.
This reminds me of buying a house, where banks ask if you want a floating or fixed interest rate.
No one would advise an ordinary family to choose floating, as market fluctuations are normal—you have to embrace uncertainty.
Is it funny? But in DeFi, this is the reality.
Fixed interest rates are not some fancy financial innovation; they are a basic respect—respect for users who need to plan their lives, respect for the fact that funding costs should be known in advance, and respect for “certainty” as a core value.
@TermMaxFi protocols are essentially not about optimizing yields but about helping DeFi grow up, transforming it from a playground for speculators into a tool for ordinary people.
From bragging about how much you earn today to feeling secure about how much you can get in half a year.
I believe that for DeFi to truly mature, it needs to offer more certainty to ordinary users.
Variable interest rates have their uses, but fixed rates can give more people peace of mind and serve as a long-term tool.
In the future, fixed interest rates may become the most fundamental certainty option in DeFi, allowing everyone to stop constantly watching interest rate changes and instead confidently plan their funds.
@TermMaxFi #TermMaxFi