After carefully examining @ hemiuxyz's Bitcoin+Ethereum fusion solution, which claims to enable native BTC to interact with smart contracts, it is actually a tunneling technology. Simply put, it means locking native BTC using Bitcoin scripts and creating a 'tunnel BTC' based on its own consensus mechanism. I personally don't think this can be considered a native asset, but it is much better than ordinary packaged assets. After all, this "tunnel custody" is theoretically based on decentralized consensus and benefits from the finality of the Bitcoin network. Another core design is to encapsulate a Bitcoin full node in EVM, which is used to sense the real-time status of the Bitcoin network and then connect it to smart contracts to provide various functions. Overall, it is a solution that is superior to commonly used centralized hosting in the industry. The ecosystem can be developed directly using Solidity, and the deployment and porting of Ethereum EVM system applications should not be a problem. Although it is submitted to the Bitcoin PoW network for final confirmation, the user experience at the Hemi layer is not much different from EVM. It is best to develop it as an EVM ecosystem. Do not cling to the outdated concept of BTCFi and insist on attracting big cake staking. The outside world is diverse, and the correct script is to provide subsidies and incentives to attract developers and arbitrageurs first, and then have the opportunity to run popular applications to drive the ecosystem out of the circle. Stay tuned, the focus will be on whether there is growth in "ecological TVL" beyond "pledged TVL".