Wu said that CZ wrote on X that it might be the right time to develop a dark pool-type perp DEX. He pointed out that the problem of real-time visibility of orders on DEX could lead to MEV attacks, which would aggravate slippage and increase transaction costs. In addition, the exposure of liquidation information could cause others to intentionally push the market to trigger liquidation. CZ suggested that the dark pool mechanism could be implemented on the chain by hiding the order book or delaying the display of smart contract funds inflows, and combined with zero-knowledge proofs or similar encryption technologies to enhance privacy protection capabilities.