[Vitalik Buterin: Network-layer anonymity is the key missing piece in privacy technology] Ethereum co-founder Vitalik Buterin posted on the X platform on February 18, stating that network-layer anonymity is a crucial long-missing component in the privacy technology ecosystem. On-chain privacy solutions (such as Railgun) and off-chain zero-knowledge applications (such as ZK API credentials) have not addressed this area. He pointed out that some application scenarios have low bandwidth requirements but are highly sensitive to latency, and achieving a balance between low latency and high anonymity is critical for technological development.