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

The next significant turning point for the crypto industry is expected to emerge from advancements in artificial intelligence. According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, autonomous agents will be capable of transacting, coordinating, and verifying each other on decentralized networks, utilizing 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 foresee humans being replaced. Instead, he envisions increasingly intelligent interfaces that will simplify complexity, allowing users to interact with crypto systems through intent rather than manual inputs, with AI serving as an 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. Products like MetaMask are evolving to reflect this shift, with Lubin describing it as a new type of neobank that users own and control, part of a transition toward a personal financial operating system. AI-powered agents could potentially act on behalf of users, managing assets and executing transactions within 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. While he acknowledges the growth of stablecoins, he views them as a stepping stone toward more fully decentralized financial systems. On tokenization, Lubin suggested that traditional finance and decentralized finance are converging, combining centuries of financial innovation with newer blockchain-based systems to create a more granular and programmable global economy. Despite these 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.