You're the PM for Facebook Newsfeed. How would you decide on auto-play videos versus click-to-play?

Focus on defining clear metrics that would guide your decision-making process regarding auto-play versus click-to-play videos. Consider user engagement metrics such as watch time, click-through rates, and user retention. Discuss the potential impact on user experience, including how each option might affect user behavior and satisfaction. Additionally, think about how you would gather data through A/B testing or user feedback to validate your assumptions. Finally, address any trade-offs between ad revenue and user experience, as this will be crucial in making a well-rounded decision.