Ethereum Co-Founder Warns of AI Control by Tech Giants

The next significant milestone in the crypto space is emerging from artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a recent interview, Lubin expressed that autonomous agents can facilitate transactions, coordinate, and verify each other on decentralized networks, leveraging crypto infrastructure for machine-driven activities. Lubin, who is set to speak at Consensus Miami 2026, stated that he supports the idea of blockchain being used for machine intelligence but does not envision humans being replaced. Instead, increasingly sophisticated interfaces will simplify complexity, enabling users to interact with crypto systems through intent rather than manual inputs, with AI acting as an intermediary layer between people and protocols. However, Lubin cautioned that if AI infrastructure remains concentrated among large tech firms, it could pose significant risks. Decentralized systems and cryptography will be crucial in ensuring accountability and enabling machines to verify each other in transparent environments. As part of this transition, products like MetaMask are evolving to become a 'personal money operating system,' where AI-powered agents can manage assets, execute transactions, and navigate the growing decentralized economy. Lubin also discussed the rise of corporate chains on Ethereum, 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 seen as a stepping stone toward more decentralized financial systems, and tokenization is expected to lead to a more granular and programmable global economy. Lubin remained calm about the long-term risks of quantum computing, stating that Ethereum developers have been preparing for years and view it as part of the natural evolution of Ethereum.