When Steve Jobs introduced capacitive touch screens to the first generation of the iPhone, he revolutionized the way we interact with mobile devices. Capacitive touch screens allowed for the use of multi-touch technology, which means that the device could register input from multiple fingers at the same time. This opened up new possibilities for user interface (UI) and user experience (UX) design.
One of the most significant benefits of multi-touch technology is the ability to use different gestures to interact with the interface. For example, a simple tap on the screen could activate a button or select an item, while a swipe gesture could be used to scroll through a list or navigate between pages.
As the technology evolved, designers began to incorporate more complex gestures into their designs. For example, two-finger gestures like pinch and zoom allowed users to zoom in and out of images or maps, while two-finger taps or presses could trigger additional functionality, such as copying and pasting text or selecting multiple items at once.
Other advanced gestures include three-finger swipes, which can be used to switch between apps or reveal the app switcher, and four-finger swipes, which can be used to navigate between full-screen apps or reveal the mission control panel on macOS.
By leveraging these different sets of gestures, designers can create interfaces that are more intuitive, efficient, and enjoyable to use. By providing users with multiple options for interacting with the interface, designers can cater to different preferences and use cases, while also reducing the cognitive load required to perform common tasks.
In summary, multi-touch technology has enabled designers to create more immersive and engaging interfaces, and by leveraging different sets of gestures, they can improve the depth and efficiency of their UI/UX designs.

