At the Devconnect conference in Argentina, Ethereum co-founder Vitalik Buterin introduced the concept of defensive accelerationism (d/acc), emphasizing the need for defensive and decentralized technologies to mitigate the risks of rapid technological advancement. Unlike effective accelerationism (e/acc), which prioritizes swift innovation, d/acc focuses on countering offensive technologies like AI deepfakes and centralized data control. Buterin highlighted blockchain-based solutions such as zero-knowledge proofs and account abstraction as key to enhancing privacy, security, and user sovereignty. This approach aligns with Ethereum's roadmap, including the expansion of L1/L2 nodes and the adoption of ZK-SNARKs, aiming to ensure technological progress benefits the broader public rather than elite interests.