Vitalik Proposes 12-Second Confirmation Rule for Faster Ethereum Transactions

Vitalik Buterin has introduced a new idea that could significantly speed up transactions on Ethereum.

The proposal suggests that transactions could be treated as effectively irreversible after just one slot (~12 seconds). That’s a big shift from the current model, where confirmations, especially for deposits to exchanges or transfers to L2s, can take several minutes.

The key change is in how confirmation works.

Instead of relying on block depth (waiting for multiple blocks), the new approach depends on validator agreement. If enough validators attest that a block is valid, the transaction can be considered final much faster.

In practical terms, this could reduce deposit and transfer times by 80–98%, making interactions between wallets, exchanges, and Layer 2 solutions much quicker.

Of course, there are some assumptions behind this model. It depends on:

• the majority of validators acting honestly
• network latency staying relatively low (around a few seconds)

If those conditions hold, the system should remain reliable in most cases, although it’s still technically less secure than full economic finality.

One interesting part is that this upgrade doesn’t require major infrastructure changes, which makes it easier to adopt.

Overall, the idea fits into Ethereum’s broader direction, improving scalability, speeding up user experience, and making the network more practical for everyday use.

Full post: https://x.com/everstake_pool/status/2034315173750550981