Modern conference hall, Bisnow DC Architecture and Design Summit, crowded with attendees, blurred background, bright stage lights, lectern with microphone, large screens displaying presentation slides, sleek wooden chairs, polished concrete floor, minimalist decor, urban cityscape outside windows, morning sunlight casting through glass walls, close-up of speaker's hands gesturing, facial expressions, professional attire, blazers, dress shirts, laptops and notebooks scattered on tables, water bottles and coffee cups, bustling atmosphere, softbox lighting, shallow depth of field.