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

The cryptocurrency space is on the cusp 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 be able to transact and interact with each other on decentralized networks, utilizing crypto as the foundation for machine-driven activity. Lubin, who is set to speak at Consensus Miami 2026, expressed his support for the idea that blockchain is suited for machine intelligences but does not envision humans being replaced. Instead, he foresees increasingly intelligent interfaces simplifying complexity and enabling users to interact with crypto systems through intent rather than manual inputs, with AI acting as the intermediary layer between people and protocols. However, Lubin warned that if AI infrastructure remains concentrated among large tech firms, it could pose significant risks. He emphasized the importance of decentralized systems and cryptography in ensuring accountability and enabling machines to verify each other's actions in transparent environments. The evolution of products like MetaMask, a Consensys product, reflects this shift, with the wallet being rebuilt as a user-controlled neobank and 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 expects to become more common as companies seek higher throughput and greater control over their infrastructure. While stablecoins are part of this transition, Lubin views them as a stepping stone toward more fully decentralized financial systems. He expects growth in decentralized collateral to enable more robust, crypto-native forms of money. On tokenization, Lubin suggested that traditional finance and decentralized finance are converging, combining centuries of financial innovation with newer blockchain-based systems. This convergence will result in a more granular and programmable global economy. Despite these significant shifts, Lubin adopted a measured tone when discussing 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.