Vitalik: Ethereum will eventually achieve instant cross-L2 native asset transfers via L1

On August 7th, Vitalik Buterin, the founder of Ethereum, stated in a post that he was very pleased to witness many mainstream Layer 2 solutions entering Stage 1, which is the "limited training rounds". The next objective is to achieve fast withdrawals through a zero-knowledge proof system. He considers this to be more significant than reaching Stage 2, which is "without training rounds". Fast withdrawal times are of great importance as they will lower the capital costs for liquidity providers. If the native withdrawal time can be shortened to less than 1 hour in the short term and to 12 seconds in the medium term, Ethereum Layer 1 will further enhance its position as the default platform for issuing assets and as the economic center of the Ethereum ecosystem. For this to be achieved, we need to give up the Optimistic proof system, which essentially requires waiting for several days to make a withdrawal. Historically, zero-knowledge proof technology was immature and costly, making the Optimistic proof a prudent and secure choice. However, this situation is changing rapidly. The 2-of-3 ZK + OP + TEE proof system strategy achieves a balance between security, speed, and maturity. In the long run, we will eventually be able to achieve almost instantaneous cross-L2 native asset transfers through L1. BlockBeats Note: Stage 1 and Stage 2 are employed to evaluate the maturity and decentralization level of Layer 2 rollups. Stage 1 includes limited training rounds, allowing for some lower decentralization features but demanding that the rollup meet basic security and functional standards. Stage 2 involves no training rounds and requires the rollup to achieve higher decentralization and security, approaching a fully decentralized state.