BTCFi should not mean taking Bitcoin liquidity and moving it further away from Bitcoin’s security model. That is the myth worth challenging. Bitcoin DeFi is often framed as “use BTC in DeFi,” but the more important question is: what rails is that activity actually built on? @rootstock_io was built for a different answer. As a BTCFi layer, Rootstock brings smart contract functionality to Bitcoin while staying anchored to Bitcoin through merge mining. This means builders can create DeFi applications for Bitcoin holders without treating Bitcoin as just another wrapped asset on unrelated infrastructure. That distinction matters. Because if BTCFi is going to become serious financial infrastructure, Bitcoin should not only be the asset being used. It should also be part of the security foundation. BTCFi is not about leaving Bitcoin rails behind. It is about expanding what can be built on them.