The Building Capacity Blog

Building Capacity is a Substack newsletter focused on building the fields of AI Safety and Effective Altruism. It was originally launched as The Field Building Blog in January 2025 by Gergő Gáspár, a Hungarian-born community builder who has been active in EA and AI Safety fieldbuilding since 2019. The blog was renamed Building Capacity in January 2026 to better reflect its expanding scope beyond strictly fieldbuilding topics. Gergő Gáspár founded EA Hungary after starting a university EA club that grew into a national group, and established AI Safety Hungary in 2022 — one of the few national AI safety groups with multiple full-time staff. He also co-founded Amplify, a digital marketing agency that supports fieldbuilding organizations, and served as part-time Director of the European Network for AI Safety (ENAIS). As of early 2026, he serves as Director of EA UK and is based in London. The blog covers fieldbuilding strategy and careers as its primary focus, and also addresses marketing, communications, and organizational culture as they relate to community building and career decisions. It publishes interviews with fieldbuilding organizations and practitioners, sharing practical knowledge that is often exchanged informally but rarely documented publicly. The publication operates on Substack with both free and paid subscription tiers.