Designing for AR (augmented reality) and VR (virtual reality) requires taking into account the unique capabilities and constraints of these technologies. For example, in AR, I might consider how to incorporate digital content into the real world in a seamless and natural way. In VR, I might consider how to create a sense of presence and immersion for the user. Both AR and VR also involve designing for 3D space, which requires a different approach to layout and spatial relationships than traditional 2D interfaces.