Explore the benefits of async over coroutines in Unity development through a conference talk from Unite Copenhagen. Learn how to implement asynchronous routines using both methods, focusing on a practical example of building an asynchronous prompt popup. Gain insights into best practices, common pitfalls, and the evolution of asynchronous programming in Unity since the introduction of async in 2017. Discover the pros and cons of each approach, understand the differences between sink and weight, and see how to effectively use MonoBehavior and extraction techniques. Follow along with code examples and learn how to apply these concepts to create efficient PromptPopup and Settings Popup implementations.