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XR user interfaces for humans

Extended reality is moving beyond the confines of the screen. As cumbersome headsets are gradually replaced by lightweight AR glasses, the interface transitions from a rectangular format to a seamless integration with our surroundings, vying for our attention. In everyday scenarios, this shift raises considerations of comfort. However, in high-stakes situations such as driving or military operations, it becomes a matter of safety: critical information must be clearly prioritized, with essential data at the forefront and ambient details maintained in the periphery, especially as stress limits our capacity to process information. This article presents one way to design for it: the RBL Framework for spatial XR.