Vitalik: PeerDAS in the Fusaka upgrade implements Ethereum sharding; the next two years will focus on optimizing PeerDAS stability.
Vitalik Buterin posted to celebrate the successful Ethereum Fusaka upgrade and stated that the Peer DAS in the Fusaka upgrade realized sharding and data availability sampling: this has always been Ethereum's dream.
Although transaction scale on Layer 2 has doubled by increasing blob capacity—according to recent analysis, L2 fees may decrease by 40-60%—Layer 1 remains limited before the maturity of zero-knowledge EVM, while distributed block building and sharded mempool are still needed.
This marks a key evolution in blockchain scalability, filling a decade-long roadmap gap since Ethereum's sharding vision in 2015. The next two years will focus on optimizing the stability of PeerDAS and expanding to L1 gas limits to achieve broader throughput.
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