The technology that facilitates creating dynamic and interactive web content includes JavaScript and associated frameworks like React, Angular, and Vue.js. These tools allow developers to create responsive and engaging user interfaces that update in real-time without needing to reload the page. By manipulating the Document Object Model (DOM), JavaScript enhances user experience through features like animations, form validations, and asynchronous data loading. Ultimately, this technology enables the development of modern web applications that are both user-friendly and efficient.