How would you measure the success of AI implementation at Netflix?

Focus on defining clear, relevant metrics that align with Netflix's business goals and user experience. Consider both quantitative metrics, such as engagement rates, churn reduction, and viewing time, as well as qualitative metrics like user satisfaction and feedback on AI-driven features. Discuss how these metrics can be tracked over time and the importance of A/B testing to assess the impact of AI on user behavior. Additionally, think about how to tie these metrics back to overall business outcomes, such as revenue growth or cost savings.