zk has always stayed in the realm of enhancing privacy and scalability as a supplementary business logic. If someone could flip the table and create a completely original system from scratch, it might have great potential in the future. But no matter what, with the current stagnation of system innovation stuck in the BTC era, it's obvious why general-purpose scalability solutions like zk-based Zcash and STRK are favored by capital. Looking at the whitepapers of Monero and Zcash, you can see that Zcash started using the term 'Decentralized,' just like in the ETH whitepaper. And it’s precisely this term 'Decentralized' that has narrowed the path for Bitcoin’s peer-to-peer, decentralized technological innovation.