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Vitalik Buterin plans to accelerate Ethereum and introduce quantum-resistant security
Ethereum co-founder Vitalik Buterin has presented an updated roadmap outlining plans to speed up transaction processing. He proposed gradually reducing block times and significantly cutting the time required for final transaction confirmation. Today, finality on Ethereum takes about 16 minutes on average.
“We will reduce slot time gradually when we are confident it is safe,” Buterin wrote. A new block is currently produced roughly every 12 seconds, but that interval could drop to 8, 6, 4 or even 2 seconds in the future. At the same time, the team is considering a new confirmation system that would allow transactions to be finalized in 6–16 seconds. “Slots and finality should be considered separately,” he noted. All changes will be introduced step by step after testing.
Faster blocks, faster network
One area of focus is speeding up how data is transmitted between network nodes. Developers are testing a method in which each block is divided into parts, and only a portion of those parts is needed to reconstruct it. This approach reduces delays and makes data transmission more resilient.
“This architecture can significantly reduce block propagation time,” Buterin said. Faster data delivery would allow Ethereum to safely shorten block intervals. The team is also exploring reducing the number of validators who sign each block to speed up confirmations. That change could simplify processing and cut delays without compromising security.
Transition to updated network protection
Major upgrades are expected to coincide with changes in cryptography. The network is exploring signatures resistant to potential quantum attacks. “We may be able to make slots quantum-resistant before finality,” Buterin noted.
This means that even if powerful quantum computers emerge, the network would continue operating. In such a scenario, the guarantee of final confirmation could temporarily weaken, but the blockchain itself would not stop. The approach is designed to reduce systemic risks for users and businesses.
Ethereum acceleration and competition
Ethereum remains the largest platform for decentralized finance, with tens of billions of dollars locked in its ecosystem. However, in terms of confirmation speed, it trails some competitors where transactions finalize in seconds. Cutting finality to 8–16 seconds would bring Ethereum closer to those performance levels without abandoning its current security model.
Faster confirmations would reduce risks in trading, arbitrage and liquidations, where seconds matter. This is particularly important for lending protocols and derivatives platforms. At the same time, accelerating the network will increase infrastructure requirements for validators and add development complexity. Buterin emphasized that maintaining a balance between speed and security remains the priority.
Read also: Vitalik Buterin outlines AI vision for decentralized governance
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