Your question is Accessible Dynamic Chat Experience. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You're working on a mobile chat product with a fast-moving, highly interactive conversation interface. Messages can stream in, content can update after it appears, and users may need to navigate long threads, attachments, and composer controls without relying on sight. You've been asked to think through how the experience should work for visually impaired users.
Explain how you would make sure a complex, dynamic chat interface remains fully accessible to visually impaired users.