For programmable privacy to be widely adopted, the key is that governance must be encoded and enforced through cryptographic proofs, rather than relying solely on promises. Source tag design is fundamental, and the next challenge is: how to efficiently batch process these tags, compress the generated proof sizes, and maximize the validation of off-chain execution strategies—only performing the final confirmation on-chain. The viability of this scheme depends on whether latency can be kept within an ideal range. Once latency becomes a bottleneck, the practicality of the entire privacy framework will be significantly undermined.