48:24Mathilde Collin explains how Front grew from a shared inbox into a collaborative email client, and how the team prioritizes features by balancing customer value, expected uptake, build complexity, and company vision. She describes learning from early customers, using public roadmaps and support analytics, and accepting that meaningful product changes can initially upset users. On employee retention, she highlights a clear mission, strong coworkers, and transparency that helps people understand their impact while protecting privacy. She also shares lessons on finding product-market fit, staying focused, and maintaining personal well-being as a founder.