Ethereum Co-Founder Joseph Lubin Sounds Alarm on AI Control by Tech Giants

The cryptocurrency space is on the cusp of a significant transformation driven by artificial intelligence, according to Ethereum co-founder and Consensys CEO Joseph Lubin. In a conversation with CoinDesk, Lubin highlighted the potential of autonomous and semi-autonomous agents to facilitate transactions, coordination, and verification on decentralized networks, leveraging crypto as the foundation for machine-driven activities. Lubin, who is set to speak at Consensus Miami 2026, expressed his support for the idea that blockchain technology is suited for machine intelligences but does not envision humans being replaced. Instead, he foresees increasingly intelligent interfaces simplifying complexity, allowing users to interact with crypto systems through intent rather than manual inputs, with AI serving as the intermediary layer between people and protocols. However, Lubin cautioned that if AI infrastructure remains dominated by a few large tech firms, it could pose significant risks. He emphasized the importance of decentralized systems and cryptography in ensuring accountability and enabling machines to verify each other's actions in transparent environments. Products like MetaMask are evolving to reflect this shift, with Lubin describing the wallet as a 'new kind of neobank that you own and control,' part of a transition toward a 'personal money operating system.' AI-powered agents could potentially act on behalf of users, managing assets and executing transactions within a growing decentralized economy. Lubin also discussed the rise of 'corporate chains' on Ethereum, where companies seek higher throughput and greater control over their infrastructure. He advocated for assets to be issued on Ethereum's base layer to ensure durability, even if they are later used across other networks. Stablecoins, while part of this transition, are seen as a 'stepping stone' toward more fully decentralized financial systems. Lubin envisions growth in decentralized collateral enabling more robust, crypto-native forms of money. On tokenization, he suggested that traditional finance and decentralized finance are converging, combining centuries of financial innovation with newer blockchain-based systems to create a more granular and programmable global economy. Despite these shifts, Lubin adopted a measured tone regarding longer-term technical risks like quantum computing, stating that Ethereum developers have been preparing for this eventuality for years and view it as part of the natural evolution of Ethereum.