Vitalik: Ethereum should prioritize increasing bandwidth rather than pursuing extremely low latency; L2 will play a key role in the long term.
TL;DR
Vitalik Buterin emphasizes prioritizing bandwidth over latency for Ethereum scalability, using PeerDAS and ZKP for thousands-fold increases while maintaining decentralization. He suggests a 2-4 second latency goal, with real-time apps relying on L2 and localized solutions like city chains.
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According to Foresight News , Vitalik Buterin tweeted, "Increasing bandwidth is safer and more reliable than reducing latency. Ethereum's scalability can be increased thousands of times with PeerDAS and ZKP, without compromising decentralization. Latency, on the other hand, is limited by physical laws and real-world environments, such as supporting global home nodes, censorship resistance, and anonymity. I believe reducing latency to within the 2–4 second range is a reasonable goal, while more real-time applications (such as AI-driven ones) will rely on localized scaling such as L2 and 'city chains'."