Zcash, an end-to-end encrypted money system, has evolved into a system that uses encryption to store and protect wealth on public blockchains. This shift comes as machine learning models gain up to 98% accuracy classifying Bitcoin transactions and can significantly reduce Monero's nominal ring size of 16 to an effective anonymity set of roughly 4. The author notes that encryption is now the default user experience and the ecosystem around it has adapted to match. The article also notes that Zcash has adopted "Shielded-by-Default" as a design decision to become the network default and eliminate KYC chokepoints by integrating privacy-first CrossPay and Swap. Protocol governance and development is now distributed across five independent organizations, including a $25 million private investment into for-profit ZODL (fka Zashi). The author concludes that while privacy is a central challenge in cryptocurrency, most blockchains are transparent, permanent ledgers can expose individuals and organizations to financial surveillance, security risks and unwanted disclosure of sensitive information.