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

According to Consensys CEO and Ethereum co-founder Joseph Lubin, the next significant development in the crypto space will be driven by artificial intelligence. In an interview, Lubin stated that autonomous agents can interact, coordinate, and verify transactions on decentralized networks, leveraging crypto infrastructure 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 emphasized that humans will not be replaced. Instead, increasingly sophisticated interfaces will simplify complexity, enabling users to interact with crypto systems through intent rather than manual inputs, with AI serving as an intermediary layer between people and protocols. However, Lubin warned that if AI infrastructure remains controlled by a few large tech firms, it could pose significant risks. He argued that decentralized systems and cryptography are essential for ensuring accountability and enabling machines to verify each other's actions in transparent environments. The evolution of products like MetaMask reflects 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 manage assets, execute transactions, and navigate the growing decentralized economy on behalf of users. Lubin also discussed the rise of 'corporate chains' on Ethereum, where companies seek higher throughput and greater control over their infrastructure. He emphasized that assets are best issued on Ethereum's base layer to ensure durability, even if they are later used across other networks. Stablecoins, a rapidly growing sector in crypto, are a stepping stone toward more fully decentralized financial systems, but still rely heavily on centralized issuers. Over time, Lubin expects growth in decentralized collateral to enable more robust, crypto-native forms of money. On tokenization, Lubin 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. While acknowledging the potential risks of quantum computing, Lubin struck a measured tone, stating that Ethereum developers have been preparing for years and view it as part of the natural evolution of Ethereum.