Vitalik: Ethereum will eventually achieve instant transfer of native assets across L2 through L1.

[Vitalik: Ethereum will eventually achieve instant transfer of native assets across L2 through L1] Ethereum founder Vitalik Buterin stated in a post that it is truly exciting to see many mainstream Layer 2 solutions reaching Stage 1 "limited training rounds." The next goal is to achieve fast withdrawals through a zero-knowledge proof system. He believes this is more important than reaching Stage 2 "no training rounds." Fast withdrawal times are crucial, as they will drop the capital costs for Liquidity Providers. If the native withdrawal time can be shortened to within 1 hour in the short term and to 12 seconds in the medium term, it will further solidify Ethereum Layer 1 as the default platform for asset issuance and the economic center of the Ethereum ecosystem. To this end, we need to abandon the Optimistic proof system, which essentially requires waiting several days to withdraw. Historically, zk-SNARKs technology has been immature and costly, making Optimistic proofs a wise and safe choice. However, this situation is rapidly changing, and the 2-of-3 ZK + OP + TEE proof system strategy strikes a balance between security, speed, and maturity. In the long run, we will ultimately achieve almost instantaneous native asset transfers across L2 through L1.