Ethereum Co-Founder Joseph Lubin Highlights the Risks of AI Control by Major Tech Companies

The cryptocurrency landscape is on the cusp of a significant transformation driven by artificial intelligence. According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, decentralized networks will enable autonomous or semi-autonomous agents to transact, coordinate, and verify each other using cryptocurrency as a 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 predicts that increasingly intelligent interfaces will simplify complexity, allowing users to interact with cryptocurrency systems through intent rather than manual inputs, with AI acting as an intermediary between people and protocols. However, if AI infrastructure remains concentrated among a few large tech firms, it could pose significant risks. Lubin emphasized the importance of decentralized systems and cryptography in ensuring accountability and enabling machines to verify each other in transparent environments. The evolution of products like MetaMask, a Consensys product, reflects this shift. Lubin described the wallet as being rebuilt into a "new kind of neobank that you own and control," part of a transition toward a personal financial operating system. AI-powered agents could manage assets, execute transactions, and navigate the growing decentralized economy on behalf of users. The rise of corporate chains on Ethereum is another significant development, with Lubin expecting companies to seek higher throughput and greater control over their infrastructure. He emphasized that assets are best issued on Ethereum's base layer to ensure durability. Stablecoins are part of this transition but not the endpoint, serving as a stepping stone toward more decentralized financial systems. Over time, Lubin expects growth in decentralized collateral to enable more robust forms of crypto-native money. The convergence of traditional finance and decentralized finance is also underway, combining centuries of financial innovation with newer blockchain-based systems to create a more granular and programmable global economy. Lubin adopted a cautious stance on longer-term technical risks like quantum computing, stating that Ethereum developers have been preparing for years and view it as part of the natural evolution of Ethereum.