Internet reports that CZ posted on X saying that given recent events, I think now may be a good time to launch dark pool perp DEX. I've always been confused that everyone on DEX can see your orders in real time. This problem is even more serious on permanent DEXs with liquidation. Even with a centralized exchange (CEX) order book, orders are not associated with specific individuals, but if you want to buy $1 billion worth of cryptocurrency, you usually don't want others to notice your order until it is completed. Otherwise, others may buy first, effectively trading first. In decentralized exchanges (DEX), this can lead to MEV attacks. This causes slippage to increase, prices to fall, and your costs to increase. As a result, large traders in TradFi use dark pools, which are typically 10 times larger than "open pools"(i.e., normal order books). For position holders (or futures traders), it is more important not to let others know/see your orders. If others see your liquidation point, they may try to push the market to liquidate you. Even if you have a billion dollars, others may gang up on you. This may be what we have seen recently. The objection I see is that increased transparency allows market makers to absorb your large orders. This may be true. I don't want to argue about which is right and which is wrong. Different traders may prefer different types of markets. Now may be a good time to launch on-chain dark pool DEX + perpetual contracts. Either not display the order book, or better yet, not display smart contract deposits at all, or wait until a long time to show them. This should be possible through zero-knowledge proof or similar encryption techniques.