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

The next significant milestone in the crypto space is anticipated to emerge from advancements in artificial intelligence. According to Joseph Lubin, CEO of Consensys and co-founder of Ethereum, autonomous agents will have the capability to transact, coordinate, and verify each other on decentralized networks, leveraging crypto as the foundation for machine-driven activities. Lubin, who is set to speak at Consensus Miami 2026, expressed his sympathy for the idea that blockchain technology is well-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 the intermediary layer between people and protocols. However, this vision also comes with risks, as the concentration of AI infrastructure among large tech firms could pose significant problems. Lubin 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 kind of neobank that users own and control, 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. The rise of corporate chains on Ethereum is also expected, with Lubin pointing to structural changes across the ecosystem. He anticipates that corporate chains will become more common as companies seek higher throughput and greater control over their infrastructure. Stablecoins are part of this transition but not the endpoint, serving as a stepping stone toward more fully decentralized financial systems. Lubin described them as heavily reliant on centralized issuers but 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. While addressing longer-term technical risks like quantum computing, Lubin struck a measured tone, stating that Ethereum developers have been preparing for years and see it as part of the natural evolution of Ethereum.