As a product manager of YouTube, evaluating whether to add a new feature of showing videos flashing 5 frames instead of being static in the search thumbnail view would require a thorough analysis of its potential impact on user experience, engagement, and revenue. Firstly, we would need to understand the problem that this new feature is trying to solve. Is it to increase click-through rates on videos or to improve the user experience by making the search results more engaging and visually appealing? Once we have a clear understanding of the problem, we can evaluate the feature against our product goals and metrics. Secondly, we would need to conduct user research to understand how users interact with the current search thumbnail view and how they might respond to a flashing video thumbnail. This could involve conducting A/B tests or user surveys to gather data and insights. Thirdly, we would need to evaluate the technical feasibility and cost of implementing this feature. This would involve working with our engineering and design teams to determine the resources required to develop and launch the feature. Lastly, we would need to consider the potential impact on revenue and the broader YouTube ecosystem. For example, would the flashing video thumbnails affect the performance of ads or other content on the page? Would the feature be well-received by content creators and publishers on the platform? Overall, the decision to add the flashing video thumbnail feature would depend on a range of factors, including user feedback, technical feasibility, impact on revenue, and alignment with our product goals and strategy. As a product manager, it would be important to gather all relevant data and insights before making a decision and to continually monitor and evaluate the feature once it is launched to ensure that it is meeting our goals and delivering value to our users and stakeholders.