Julia Rogatz, an iOS engineer specializing in gesture handling and touch interactions for the Muse app, discusses the intricate development process of designing a rich gesture space for iPad. She delves into defining gestures based on Apple’s guidelines, the challenges of gesture ambiguity, and the balance between instant responses and user experience. Julia also shares insights on testing techniques, the conflicts with OS gestures, and the need for a centralized gesture state machine, revealing the technical artistry behind seamless interactions.