Re-examining the core definitions of blockchain and crypto assets reveals that they are far more than just an upgraded version of financial technology. Many people tend to confuse them, but their logical foundations are completely different. Blockchain brings decentralized consensus, an immutable ledger, and native asset transfer methods — these are not replicable by fintech. The true next-generation applications (dapps) will not stop at mimicking traditional finance but will fully leverage the unique properties of blockchain. Only by deeply understanding these differences can we build truly revolutionary Web3 ecosystems.