Having been in the blockchain development industry for over five years, I finally see a harsh reality: the vast majority of failed on-chain systems are not caused by hackers, but by gradual "rusting" in unseen places, ultimately leading to silent collapse.

Have you noticed? The industry's narrative has changed.

In the past, everyone discussed whether "this feature can run or not," but now it's about "whether it will still be reliable five years from now." This anxiety is pushing the entire ecosystem to reevaluate a fundamental and also the most dangerous component—the oracle.

Think about what an oracle used to be. It was just a "courier," transferring off-chain data onto the chain, completing its job. Who studied whether this data could be trusted later or whether it would slowly distort the system? As long as a single transaction didn't go wrong, it was considered successful.

But now, the situation is completely different. DeFi is locking in billions of dollars, real-world assets are being tokenized on-chain, and gaming and social applications are building native economic systems. Once the system starts, it cannot be stopped. If at this point, oracles are still viewed as "disposable tools," it's like using straw for the foundation of a skyscraper—appearing fine on the surface, but inevitably collapsing when the time comes.

Where is the core issue? The core issue is: long-term correctness ≠ the accumulation of numerous short-term correct decisions.

Traditional finance has long taught us through blood and tears—that risk control models can fail, data sources can shift, and market laws can fracture. A system that only "works" today, this week, or this month, when scaled to three years, quietly accumulates deviations sufficient to be fatal. This is the fate that oracles, and even the entire on-chain ecosystem, cannot escape.