Vitalik Buterin argued Ethereum must prioritize bandwidth scaling over latency reduction due to physical and decentralization constraints, positioning the network as a global coordination infrastructure while Layer 2 chains handle speed-intensive applications requiring sub-second response times.

Ethereum co-founder Vitalik Buterin argued in his latest post that the network must prioritize bandwidth scaling over latency reduction, noting that physics and the requirements of decentralization fundamentally limit how quickly blockchain consensus can operate.

Bandwidth Scaling Offers Safe Path Forward

Buterin explained that increasing bandwidth is a safer technical approach than reducing block times.

Buterin acknowledged that moderate improvements remain possible through P2P enhancements and reduced validator counts per slot, potentially delivering 3-6x latency gains to reach 2-4 second block times.

AI Applications Demand City-Scale Infrastructure

The Ethereum founder argued that artificial intelligence will inevitably require faster infrastructure than any global blockchain can provide.

“If an AI can think 1000x faster than humans, then to the AI, the ‘subjective speed of light’ is only 300 km/s,” Buterin explained, noting that AI agents communicating at machine speed can only achieve near-instant responses within city-scale distances.

Linux Metaphor Frames Ethereum’s Role

In a separate post today, Buterin compared Ethereum to Linux and BitTorrent, emphasizing how both technologies combine decentralization with mass-scale adoption.

At the same time, major financial institutions, including JPMorgan and Deutsche Bank, are developing Ethereum-based tokenization products for deployment across global markets.

Sources >> Vitalik Buterin Explains Why Ethereum Can’t Compete on Speed Alone