In this episode, Graham McNicoll, Co-Founder and CEO of GrowthBook, joins Mang-Git to share his journey from physics research to creating an open-source AB testing and feature flagging platform, driven by his experiences at Education.com. They discuss the challenges and considerations behind building vs. buying software solutions, the importance of rigorous data analysis in product development, and how GrowthBook addresses these needs. The conversation also highlights the role of open source in GrowthBook's growth and their innovative product WebLens.ai, which leverages AI for A/B testing suggestions.