Welcome to your interview.
The question is on your right: Explain Thesis to Non-Experts. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Can you explain a complex concept from your thesis to someone outside your immediate field?