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

The next significant milestone in the crypto space 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 able to transact and coordinate with each other on decentralized networks, utilizing crypto 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 sophisticated 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, if AI infrastructure remains concentrated among a few large tech firms, it could pose significant risks. Lubin 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. Lubin described the wallet as 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 and executing transactions in a growing decentralized economy. Lubin also pointed to structural changes in the Ethereum ecosystem, including the rise of 'corporate chains' as companies seek higher throughput and greater control over their infrastructure. He believes that assets are best issued on Ethereum's base layer to ensure durability, even if they are later used across other networks. Stablecoins, a rapidly growing sector in crypto, are part of this transition but not the ultimate goal. Lubin views them as a 'stepping stone' toward more fully decentralized financial systems, noting that current models rely heavily on centralized issuers. Over time, he expects growth in decentralized collateral to enable more robust, crypto-native forms of money. Regarding 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 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.