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

According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, the next significant development in the crypto space will be driven by artificial intelligence. In a recent interview, Lubin noted that autonomous agents can perform transactions, coordinate, and verify each other on decentralized networks, utilizing crypto rails 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 intelligent interfaces 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, Lubin warned that if AI infrastructure remains concentrated among a few 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 in transparent environments. The evolution of products like MetaMask, a Consensys product, reflects this shift. Lubin described the wallet as a new type of neobank that users 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 in a growing decentralized economy. Lubin also pointed to structural changes in the Ethereum ecosystem, including the rise of corporate chains, which are expected to become more common as companies seek higher throughput and greater control over their infrastructure. While stablecoins are a rapidly growing sector, 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 is expected to result in a more granular and programmable global economy. Regarding longer-term technical risks like 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 Ethereum.