Ethereum Co-Founder Joseph Lubin Sounds Alarm on AI Control by Tech Giants

The next significant milestone for the crypto industry is anticipated to emerge from advancements in artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a recent interview, Lubin emphasized that autonomous agents can facilitate transactions, coordinate activities, and verify each other on decentralized networks, leveraging crypto infrastructure as the foundation for machine-driven operations. Lubin, who is set to speak at Consensus Miami 2026, expressed his support for the concept that blockchain technology is suited for machine intelligences, but does not envision humans being replaced. Instead, he predicts that increasingly sophisticated interfaces will simplify complexity, enabling users to interact with crypto systems through intent rather than manual inputs, thereby positioning AI as an intermediary layer between humans and protocols. However, this vision also carries risks, as the concentration of AI infrastructure among large tech firms could pose significant problems, Lubin cautioned. He stressed that decentralized systems and cryptography are crucial for ensuring accountability and enabling machines to verify each other in transparent environments. The evolution of products like MetaMask, a Consensys offering, reflects this shift. Lubin described the wallet as being redeveloped into a novel type of self-controlled neobank, part of a transition toward a personal financial operating system. AI-powered agents could potentially act on behalf of users, managing assets and navigating a growing decentralized economy. Lubin also addressed structural changes within the Ethereum ecosystem, including the rise of corporate chains, which he anticipates will become more prevalent as companies seek higher throughput and greater control over their infrastructure. While he acknowledges that stablecoins are a rapidly expanding sector, Lubin views them as an interim step toward more fully decentralized financial systems. Over time, he expects the growth of decentralized collateral to facilitate 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 is expected to yield a more granular and programmable global economy. Despite these advancements, Lubin adopted a cautious stance on long-term technical risks like quantum computing, stating that Ethereum developers have been preparing for this eventuality over the years.