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, CEO of Consensys and co-founder of Ethereum, autonomous or semi-autonomous agents will be able to transact, coordinate, and verify each other on decentralized networks, utilizing cryptocurrency 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 he does not envision humans being replaced. Instead, increasingly intelligent interfaces will simplify complexity, enabling users to interact with cryptocurrency systems through intent rather than manual inputs, with AI serving as the intermediary layer between people and protocols. However, if AI infrastructure remains concentrated among large technology 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 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 act on behalf of users, managing assets and executing transactions within a growing decentralized economy. Lubin also pointed to structural changes in the Ethereum ecosystem, including the rise of corporate chains, which are expected to become more common as companies seek higher throughput and greater control over their infrastructure. He emphasized the importance of issuing assets on Ethereum's base layer to ensure durability. Stablecoins, a rapidly growing sector, are seen as a stepping stone toward more fully decentralized financial systems, with decentralized collateral expected to enable more robust forms of cryptocurrency in the future. Lubin also discussed the convergence of traditional finance and decentralized finance, which will combine centuries of financial innovation with newer blockchain-based systems, resulting in a more granular and programmable global economy. While acknowledging the potential risks of quantum computing, Lubin adopted a measured tone, stating that Ethereum developers have been preparing for this eventuality for years.