# Intelligent Virtual Reality and Augmented Reality Technologies: An Overview
## 4 Discussion
The study also went over the use of blockchain and its applicability within the metaverse. Moreover, it presented key challenges and open issues related to digital economies, technological limitations, governance, regulations, as well as security and privacy. Finally, the study highlighted the important role that both AI and blockchain will play in the creation of an ever-expanding metaverse. [PERSON] et al. [85] carried out an in-depth survey regarding the use of AI within the metaverse. The study went over the categorization of the different AI types, its role in the metaverse, as well as the technical aspects in which its integration can aid with, such as natural language processing, computer vision, blockchain, digital twins, neural interfaces, and networking. Additionally, it explored various application domains, such as healthcare, manufacturing, smart cities, and gaming while also commenting on its potential use in e-commerce, real estate, and decentralized finance. [PERSON] et al. [86] explored the integration of AI within AR microscopes for cancer diagnosis. The study focused on presenting the proposed platform which capitalizes on AR for effective representation and interactivity and on AI for identification. Overall, the study highlights the potential that the combination of these technologies can yield in the field of healthcare. [PERSON] et al. [87] provided an overview regarding the future trends of the metaverse focusing on AI, internet of things, and blockchain. Their work focused on the medical domain and commented upon the virtual environments and worlds that can be created within the metaverse. Additionally, the study highlighted the technologies which the metaverse uses and explored AI use cases within the metaverse as well as the use of the metaverse in healthcare. [PERSON] et al. [88] focused on VR simulations in the context of assessing surgical expertise. Their approach emphasized machine learning and the role of AI in medical education. Specifically, they looked into how machine learning can be used in the context of VR simulations to evaluate users' performances. The study also provides a general framework to effectively report and analyze studies that focus on machine learning and VR surgical simulations. [PERSON] et al. [89] carried out a review regarding the use of AI within AR applications targeted at manufacturing. The study highlighted the benefits that AR can bring about and how AI can be used to further enrich AR applications. Specifically, the study focused on identifying the main concepts and the limitations of the existing methods and explored various AI-based approaches that could help address these challenges. The study also commented upon the benefits of AI in manufacturing and within AR-based applications. [PERSON] et al. [90] explored 6G-enabled edge AI for the metaverse. Specifically, the study presented the main aspects of the metaverse and focused on the existing challenges that it faced. Additionally, the study looked into the limitations specified in the existing literature and provided future research directions. [PERSON] et al. [91] examined a mixed reality teacher awareness tool in the context of AI-enhanced classrooms. Specifically, the study focused on intelligent tutoring systems and advanced analytics which were displayed in an MR headset. Their study revealed that the use of MR-based teacher analytics can help address the learning outcome gaps observed among students of different levels of knowledge and skills. Finally, the outcomes of the study highlighted the benefits that the AI systems can bring in education and the potential that the combination of integrating human and machine intelligence can have in supporting students' learning. The outcomes of the aforementioned studies reveal the potentials of integrating AI within AR and VR environments as well as the metaverse across different contexts. Moreover, they highlight the need to integrate and combine new technologies to meet the emerging requirements.