Your question is Why Quant, Why Now. 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).
Why do you want to move into quant work, and what experiences have convinced you that this path is a strong fit for your strengths and long-term goals? Give me a specific example that shows how you've already started building toward that transition.