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

The next significant turning point for crypto is expected to emerge from advancements in artificial intelligence, according to Joseph Lubin, the CEO of Consensys and co-founder of Ethereum. In a conversation with CoinDesk, Lubin emphasized that autonomous agents can facilitate transactions, coordination, and verification on decentralized networks, leveraging crypto as the foundation for machine-driven activities. Lubin, who is scheduled to speak at Consensus Miami 2026, expressed sympathy for the idea that blockchain technology is tailored for machine intelligences but does not foresee humans being replaced. Instead, he envisions increasingly intelligent interfaces simplifying complexity, allowing users to interact with crypto systems based on intent rather than manual inputs, with AI serving as an intermediary layer between people and protocols. However, this vision also carries risks, particularly if AI infrastructure remains concentrated among a few large tech firms, which could lead to trouble, as warned by Lubin. He stressed that decentralized systems and cryptography are crucial for ensuring accountability and enabling machines to verify each other in transparent environments. Products like MetaMask are evolving to reflect this shift, with Lubin describing the wallet as a new kind of user-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 he believes will become more common as companies seek higher throughput and greater control over their infrastructure. While he expects assets to be best issued on Ethereum's base layer for durability, he noted that stablecoins are part of a transition toward more fully decentralized financial systems but are not the endpoint. Lubin views them as a stepping stone, with current models still reliant on centralized issuers, but anticipates 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, resulting in a more granular and programmable global economy. Despite these shifts, Lubin adopted a measured tone regarding longer-term technical risks like quantum computing, stating that Ethereum developers have been preparing for years and see it as part of the natural evolution of Ethereum.