Vitalik: Four steps to accelerate L2 status confirmation, the long-term goal is to achieve native synchronous communication between L1 and L2 in 12 seconds

Odaily News On April 8, at the "Web3 Scholars Summit 2025" in Hong Kong, Ethereum founder Vitalik Buterin gave a speech. He said that OP and ARB need a week to confirm the withdrawal status. Although users can use instant bridges, it is expensive, so we need to speed up the L2 confirmation time and a more integrated and unified Ethereum system. How to achieve this goal?

The first step is the ZK+TEE+OP "three-choice-two" design, which requires a 30-day upgrade window to implement;

The second step is to use L1SLOAD, an opcode that allows L2 to asynchronously read L1 without excessive lookahead;

The third step is proof integration. Instead of confirming the status of the chain separately, it is better for all validators to submit proofs to an aggregator.

The fourth step is low latency validators.
Ethereum's long-term goal is to achieve native synchronous communication between L1 and L2 in around 12 seconds.