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

According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, the next significant turning point for cryptocurrency will be driven by artificial intelligence. In a recent interview, Lubin noted that autonomous agents can perform transactions, coordinate, and verify each other on decentralized networks, utilizing 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 suitable for machine intelligences but does not envision humans being replaced. Instead, he believes 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 carries risks, as the concentration of AI infrastructure among large tech firms could lead to trouble, according to Lubin. 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 the wallet being rebuilt as a user-owned and controlled neobank, 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 are expected to become more common as companies seek higher throughput and greater control over their infrastructure. While stablecoins are part of this transition, Lubin views them as a stepping stone toward more fully decentralized financial systems, noting that current models rely heavily on centralized issuers. The growth of decentralized collateral is expected to enable more robust, crypto-native forms of money over time. Regarding 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. Despite the accelerating shifts in the industry, 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.