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

The cryptocurrency space is poised for its next significant turning point, driven by advances in artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a recent interview, Lubin noted that autonomous and semi-autonomous agents can execute transactions, 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, emphasized his support for the idea that blockchain technology is well-suited for machine intelligences, but does not envision humans being replaced. Instead, he foresees increasingly intelligent interfaces simplifying 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, this vision comes with potential risks, as the concentration of AI infrastructure among large technology firms could pose significant problems. Lubin warned that decentralized systems and cryptography will be crucial 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 redeveloped into a 'new kind of neobank that you own and control,' part of a transition toward a 'personal money operating system.' AI-powered agents could act on behalf of users, managing assets, executing transactions, and navigating a growing decentralized economy, essentially allowing individuals to carry their personal financial system with them. Beyond interfaces, Lubin highlighted structural changes within the Ethereum ecosystem, including the emergence of 'corporate chains' as companies seek higher throughput and greater control over their infrastructure. He emphasized that assets are best issued on Ethereum's base layer, as this ensures their durability, even if they are later used across other networks. Stablecoins, a rapidly growing sector in the cryptocurrency space, are part of this transition but not the ultimate goal. Lubin views them as a 'stepping stone' toward more fully decentralized financial systems, noting that current models rely heavily on centralized issuers. Over time, he expects the growth of decentralized collateral to enable more robust, crypto-native forms of money. Regarding tokenization, Lubin suggested that traditional finance and decentralized finance are converging, combining centuries of financial innovation with newer blockchain-based systems. This convergence will result 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 and see it as part of the natural evolution of Ethereum.