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

The next significant milestone for the crypto industry is expected to be driven by artificial intelligence. Joseph Lubin, CEO of Consensys and co-founder of Ethereum, expressed this sentiment in a conversation with CoinDesk. According to Lubin, autonomous agents can engage in transactions, 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 sympathy for the idea that blockchain technology is suited for machine intelligences but does not envision humans being replaced. Instead, he foresees increasingly intelligent interfaces simplifying 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 warned that decentralized systems and cryptography will be crucial in ensuring accountability, enabling machines to 'check on one another' in transparent, verifiable environments. Products like MetaMask, a Consensys product, are evolving to reflect this shift, with the wallet being rebuilt 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, executing transactions, and navigating a growing decentralized economy. 'You can walk around with your personal financial system in your pocket,' Lubin noted. Beyond interfaces, Lubin pointed to structural changes across the Ethereum ecosystem, with the architecture of the blockchain shaping how institutions approach adoption. He expects 'corporate chains' to become more common as companies seek higher throughput and greater control over their infrastructure. However, Lubin argued that assets are best issued on Ethereum's base layer, stating that 'the best way to ensure that an asset is durable... is to mint it on Ethereum layer one,' even if the asset is later used across other networks. Stablecoins, one of crypto's fastest-growing sectors, are part of this transition but not the endpoint. Lubin described them as a 'stepping stone' toward more fully decentralized financial systems, noting that current models remain heavily reliant on centralized issuers. Over time, he expects growth in decentralized collateral to enable more robust, crypto-native forms of money. On tokenization more broadly, Lubin suggested that traditional finance and decentralized finance are entering a period of convergence, combining centuries of financial innovation with newer blockchain-based systems. The result, he said, will be a more granular and programmable global economy. Even as these shifts accelerate, Lubin struck a measured tone on longer-term technical risks like quantum computing. While not an immediate concern, he said Ethereum developers have been preparing for years. 'A lot of us just see it as being folded into the natural evolution of Ethereum,' Lubin said.