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

The next significant turning point for cryptocurrency is expected to come from advancements in artificial intelligence, according to Joseph Lubin, co-founder of Ethereum and CEO of Consensys. In a recent interview, Lubin noted that autonomous agents can interact, coordinate, and verify transactions on decentralized networks using crypto infrastructure, paving the way 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 intelligence but does not foresee humans being replaced. Instead, he envisions increasingly intelligent interfaces simplifying complexity, allowing users to interact with crypto systems through intent rather than manual inputs, with AI acting as an intermediary layer between people and protocols. However, this vision also carries risks, as the concentration of AI infrastructure among large tech firms could lead to trouble, Lubin warned. He emphasized the importance of decentralized systems and cryptography in ensuring accountability and enabling transparent, verifiable environments where machines can 'check on one another.' Products like MetaMask are evolving to reflect this shift, with Lubin describing it as 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 believes 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 seen as a stepping stone toward more fully decentralized financial systems, with Lubin noting that current models rely heavily on centralized issuers. Over time, he 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 addressing longer-term technical risks like quantum computing, Lubin adopted a measured tone, stating that Ethereum developers have been preparing for years and see it as part of the natural evolution of Ethereum.