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

The next significant milestone in the crypto space is expected to emerge from advancements in artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a recent interview, Lubin stated that autonomous or semi-autonomous agents have the capability to transact, coordinate, and verify each other on decentralized networks, utilizing crypto as the foundation for machine-driven activities. Lubin, who is scheduled to speak at Consensus Miami 2026, expressed his support for the idea that blockchain technology is suited for machine intelligences but does not foresee humans being replaced. Instead, he envisions increasingly intelligent interfaces that will simplify complexity, enabling 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 a few large tech firms, it could lead to trouble. 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, a Consensys product, 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 potentially act on behalf of users, managing assets, executing transactions, and navigating 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, as it ensures durability. Stablecoins, a rapidly growing sector in crypto, are seen as a stepping stone toward more fully decentralized financial systems, although current models still rely heavily on centralized issuers. Over time, Lubin expects growth in 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, resulting in a more granular and programmable global economy. While acknowledging the potential risks associated with quantum computing, Lubin adopted a measured tone, stating that Ethereum developers have been preparing for this scenario for years and view it as part of the natural evolution of Ethereum.