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

The next significant turning point for crypto is likely to come from advancements in artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In an interview, Lubin noted that autonomous agents can conduct 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, expressed his support for the idea that blockchain technology is suited for machine intelligences but does not envision humans being replaced. Instead, he believes increasingly intelligent interfaces will simplify complexity, allowing users to interact with crypto systems through intent rather than manual inputs, with AI serving 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. Products like MetaMask are evolving to reflect this shift, with Lubin describing it as a new kind of neobank that users 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 pointed to structural changes in the Ethereum ecosystem, including the rise of corporate chains, which he expects to become more common as 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. Stablecoins are part of this transition but not the endpoint, serving as a stepping stone toward more fully decentralized financial systems. Lubin expects growth in decentralized collateral to enable 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. While acknowledging the potential risks of quantum computing, Lubin struck a measured tone, noting that Ethereum developers have been preparing for this eventuality for years.