A unifying framework that organizes the family of 'realities' — Virtual, Augmented, Physical, Diminished, and the Metaverse — within a three-axis space of virtuality (bits), physical reality (atoms), and sociality (human interaction). eXtended Reality (XR) is positioned as spanning this entire Socio-Cyber-Physical space, interpolating between the individual realities and extrapolating beyond them, which lets the framework locate underexplored regions such as Diminished Reality and frame XR as a 'physical spatial metaverse' whose six core properties target sustainability, healthcare, frontline work, and everyday human augmentation.
As technology advances, the integration of physical, virtual, and social worlds has led to a complex landscape of ``Realities'' such as Virtual Reality (VR), Augmented Reality (AR), metaverse, spatia…