The document discusses potential future directions for web pages, including making them more spatial and three-dimensional. It presents examples of how web pages could be immersive environments for browsing, shopping, editing, gaming, collaboration and education. Key applications mentioned include using virtual and augmented reality to make pages feel more like 3D spaces where users can navigate and interact visually, auditorily and kinetically. The document suggests these types of "spatial websites" could be built using technologies like WebGL, WebAssembly, Unity and WebXR.