Ethereum co-founder Vitalik Buterin has encouraged developers to continue building on Ethereum's Layer 1 (L1) network, citing the persistently low transaction fees throughout 2025. Buterin's remarks highlight the current affordability of using Ethereum's base layer, which has seen reduced congestion and costs, making it an attractive option for developers and projects. The statement comes as Ethereum's network has experienced improvements in scalability and efficiency, contributing to the decreased transaction costs. This environment presents an opportunity for developers to leverage Ethereum's robust infrastructure without the need for Layer 2 solutions, which are typically used to mitigate high fees and network congestion.