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

The next significant turning point for the crypto industry will be driven by advancements in artificial intelligence, according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a conversation with CoinDesk, Lubin noted that autonomous agents can facilitate transactions, coordinate, and verify each other on decentralized networks, leveraging 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 suited for machine intelligences but does not envision humans being replaced. Instead, he predicts that increasingly sophisticated interfaces will simplify complexities, allowing users to interact with crypto systems through intent rather than manual inputs, with AI serving as the intermediary layer between individuals and protocols. However, this vision also carries 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. Products like MetaMask are also evolving to reflect this change, with Lubin describing the wallet as a new kind of self-owned and controlled neobank, part of a transition toward a personal money operating system. AI-powered agents could act on behalf of users, managing assets and navigating a growing decentralized economy. The rise of corporate chains on Ethereum is another significant development, with Lubin expecting companies to seek higher throughput and greater control over their infrastructure. He believes that assets are best issued on Ethereum's base layer to ensure durability. Stablecoins, a rapidly growing sector, are a stepping stone toward more decentralized financial systems, but they still rely heavily on centralized issuers. Over time, Lubin expects the growth of decentralized collateral to enable more robust forms of crypto-native money. The convergence of traditional finance and decentralized finance will lead to a more granular and programmable global economy, combining centuries of financial innovation with newer blockchain-based systems. While Lubin acknowledged the potential risks of quantum computing, he struck 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 the Ethereum ecosystem.