Virtual reality (VR) is a technology that creates a simulated environment, typically experienced through a headset or other wearable device. VR is used in many applications, such as gaming, education, and healthcare. Popular VR platforms include Oculus, HTC Vive, and PlayStation VR. Check our reviews Digital twins are virtual models of physical objects, such as buildings, machines, and systems. Digital twins can be used to simulate and optimize performance, monitor and predict maintenance needs, and improve overall efficiency. Popular digital twin platforms include Siemens Digital Twin, IBM Digital Twin Exchange, and ANSYS Twin Builder.