Internet of Digital Reality

With the ever-increasing prevalence and widespread adoption of Virtual Reality, Augmented Reality, Mixed Reality, and Digital Twins in conjunction with artificial intelligence, 5G networks, and the omnipresent 2D Web, we find ourselves on the verge of a new era. This era is characterized by a multi-modal entangled combination of previously separate domains of information technology with human and social cognitive systems. The complex process of entanglement is bringing us towards a new and unique form of reality. The boundaries between the physical and digital worlds, as well as the digital representations and simulations of them, are becoming increasingly unclear and uncertain. This chapter aims to review and reinterpret well-established concepts such as virtual reality, augmented reality, mixed reality, and digital simulations and twins, building upon recent advancements. Based on innovative interpretations, the chapter presents the concept of higher-level structures, namely Digital Reality (DR) and Internet of Digital Reality (IoD). These structures have the potential to improve our understanding of the unparalleled opportunities provided to humanity by the pervasive nature of digital technologies.