One Saturday morning this fall, I walked into Chapel Hill Bible Church, an unpretentious complex of brick buildings near the highway. Inside, a conference space bustled with 50 people sitting at round tables. The crowd skewed millennial, mostly (but not entirely) white. I sat next to a hip-looking bearded man wearing a hoodie, who told me he was a nurse at a nearby hospital. My other tablemates included a cybersecurity expert, a doctoral student in speech pathology and an occupational therapist working in public schools.