[DigitalToday reporter Chi-gyu Hwang] Ethereum co-founder Vitalik Buterin (부테린) urged developers to comprehensively review how they build applications on Ethereum, The Block reported on Thursday.

He argues that core protocol security should be maintained, but a more experimental mindset is needed.

In a lengthy post on social media platform X (Twitter), Buterin stressed that the Ethereum ecosystem must firmly uphold principles such as censorship resistance, open-source development, privacy and security. He also said developers should be given more freedom to challenge long-held assumptions about decentralised application design.

"Core properties can never be compromised. But at the application layer and the interface where Ethereum meets the world, we need the will to fundamentally revisit various concepts and go beyond familiar territory," he said.

He put particular emphasis on privacy. He said that treating privacy as a core ecosystem feature would require rebuilding a large part of the current Ethereum application stack. He said the existing stack was not designed with privacy at its center from the start.

On the direction of decentralised finance, or DeFi, he suggested it could evolve into more general-purpose financial infrastructure. He also raised the possibility that much of DeFi could be reshaped into a general-purpose futures market built on decentralised oracle systems.

On oracle design, he also mentioned generating verifiable data feeds by combining cryptographic proofs with outputs from multiple large language models and trusted data sources.

He said AI could also change how users use blockchain applications. Deeper integration of AI functions could reduce the need for existing wallet interfaces or standalone apps and enable a more flexible user experience.