Ethereum Co-Founder Warns of AI Risks Amid Tech Giants' Control

The cryptocurrency landscape is on the verge of a significant transformation, driven by the advent of artificial intelligence (AI). According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, autonomous agents will soon be able to transact, coordinate, and verify one another 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 emphasized that humans will not be replaced. Instead, increasingly intelligent interfaces will simplify complexity, enabling users to interact with crypto systems through intent rather than manual inputs, with AI serving as an intermediary layer between people and protocols. However, Lubin warned that if AI infrastructure remains concentrated among a few large tech firms, it could pose significant risks. Decentralized systems and cryptography will be crucial in ensuring accountability and enabling machines to verify one another in transparent environments. The evolution of products like MetaMask, a Consensys product, reflects this shift. Lubin described the wallet as 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 and executing transactions within a growing decentralized economy. The rise of corporate chains on Ethereum is another significant trend, with Lubin expecting companies to seek higher throughput and greater control over their infrastructure. He emphasized that assets are best issued on Ethereum's base layer to ensure durability. Stablecoins, a rapidly growing sector, are a stepping stone toward more fully decentralized financial systems, but current models rely heavily on centralized issuers. Over time, Lubin expects growth in decentralized collateral to enable more robust, crypto-native forms of 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 acknowledging the potential risks of quantum computing, Lubin struck a measured tone, stating that Ethereum developers have been preparing for years and view it as part of the natural evolution of the ecosystem.