An Ethereum developer has proposed to halve the network's block time—from 12 seconds to 6 seconds—aiming to improve transaction confirmation times and user experience.
Ethereum Improvement Proposal 7782 was discussed by core developer Barnabé Monnot on June 21, suggesting to shorten the slot time—the frequency of new block creation—to 6 seconds by adjusting the timing of various blockchain operations.
"Shorter block times improve confirmation services, thus having the potential to raise service prices above today's levels," Monnot explained.
Ethereum's "service price" refers to the economic value the network can obtain when providing core services as a settlement and confirmation layer.
The proposal was initially created in October 2024, with plans to be included in the Glamsterdam update scheduled for the end of 2026. "By then, we will have completed a significant amount of healthy scaling," he added, potentially reaching a gas limit three times the current level and blob supply eight times the current level.
The Everstake team, an Ethereum staking protocol, explained on Monday that new blocks could be proposed at twice the frequency, thereby accelerating the network and providing multiple benefits.
Shorter slot times mean faster transaction inclusion, which will enhance user experience through a more responsive chain.
Wallets will display updated data after transaction inclusion, and on-chain data will be updated more frequently. This will lead to a smoother experience in wallets, DApps, and layer two networks.
It will also make it harder for anyone to censor transactions, as more block producers will be generating blocks every minute.
There will also be several advantages for transactions and decentralized finance, such as faster price updates on decentralized exchanges and reduced losses caused by arbitrage traders exploiting price differences.
Monnot stated that as the market becomes more efficient, transaction fees will decrease, and there will be more liquidity in automated market makers.
However, there may be some trade-offs, such as the impact on slower or poorly connected validators who may struggle to meet the stricter timing requirements.
There may also be higher bandwidth demands due to more frequent consensus messages, as well as a greater likelihood of network congestion during peak usage times. This will require extensive testing to avoid network instability and disruption of smart contracts.
EIP-7782 proposes to adjust three key sub-slot times: block proposal time will be reduced from 4 seconds to 3 seconds, proof time will be cut from 4 seconds to 1.5 seconds, and aggregation time will be decreased from 4 seconds to 1.5 seconds, saving a total of 6 seconds.
Monnot stated that shortening the sub-slot times means less time to execute each task.
"In my view, reducing the slot time by half on this basis would be an excellent choice for Ethereum and should be seriously considered for inclusion in Glamsterdam," he concluded.
The Glamsterdam update is still in the early design phase, focusing on gas optimization and protocol-level efficiency improvements, essentially making Ethereum faster and cheaper to use.
Related: Anchorage adds DeFi functionality for institutions through integration with Uniswap wallet
Original article: “Ethereum Developer Proposes Halving Slot Times to 6 Seconds, Doubling Blocks”
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