The legacy financial system is undergoing severe turbulence. As nation-states tighten their grip on the internet and digital assets, the collective aspiration for open, sovereign finance is reaching a critical inflection point. In 2025 Vitalik Buterin proposed an idea that low-risk defi can be for Ethereum what search was for Google. In this essay he argues that easily accessible low-risk DeFi will be Ethereum's killer app. The goal is straightforward - provide global, permissionless access t...