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 (AI), according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. Lubin shared his insights with CoinDesk, highlighting the potential for autonomous or semi-autonomous agents to engage in transactions, coordinate, and verify each other on decentralized networks, leveraging crypto infrastructure as the foundation for machine-driven activities. He will be sharing more of his insights at Consensus Miami 2026 next month. Lubin expressed sympathy towards 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 based on intent rather than manual inputs, with AI serving as the intermediary layer between people and protocols. However, this vision also comes with potential risks, particularly if AI infrastructure remains concentrated among a few large technology firms, which could lead to trouble, according to Lubin. 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, a Consensys offering, are being revamped to reflect this shift, with Lubin describing the wallet as a new kind of neobank that users own and control, part of a transition towards a personal money operating system. AI-powered agents could potentially act on behalf of users, managing assets, executing transactions, and navigating the growing decentralized economy, allowing individuals to carry their personal financial system with them. Beyond interfaces, Lubin pointed to structural changes within the Ethereum ecosystem, including the rise of corporate chains as companies seek higher throughput and greater control over their infrastructure. He believes 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 seen as a stepping stone towards more fully decentralized financial systems, though current models still rely heavily on centralized issuers. Over time, Lubin expects the growth of decentralized collateral to enable more robust, crypto-native forms of money. Regarding tokenization, he 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. While acknowledging the potential risks of quantum computing, Lubin adopted a measured tone, stating that Ethereum developers have been preparing for this eventuality for years and view it as part of the natural evolution of Ethereum.