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

According to Joseph Lubin, the CEO of Consensys and co-founder of Ethereum, the next significant development in the crypto space will be driven by artificial intelligence. Lubin believes that autonomous agents will be able to transact, coordinate, and verify each other on decentralized networks, utilizing crypto infrastructure as the foundation for machine-driven activities. He will be speaking at Consensus Miami 2026 next month. Lubin expressed sympathy for the idea that blockchain technology is suited for machine intelligences but does not envision humans being replaced. Instead, he predicts that increasingly intelligent interfaces will simplify complexity, allowing users to interact with crypto systems through intent rather than manual inputs, with AI serving as the intermediary layer between people and protocols. However, this vision also comes with risks, as Lubin warned that if AI infrastructure remains concentrated among large tech firms, it could pose significant problems. He 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 reflects 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 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 he expects to become more common as companies seek higher throughput and greater control over their infrastructure. Despite this, he believes 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 described current stablecoin models as reliant on centralized issuers but 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. Lubin adopted a measured tone when discussing longer-term technical risks like quantum computing, stating that Ethereum developers have been preparing for years and view it as part of the natural evolution of Ethereum.