What's the difference between virtual reality and augmented reality?

The answer

Virtual reality (VR) completely immerses users in a computer-generated environment using headsets that block out the physical world, tracking head movement to update the visual perspective in real time. Augmented reality (AR) overlays digital information onto the real world - think Pokémon Go or surgical navigation systems that project a patient's CT scan onto their body during operations. Mixed reality (MR) blends both, allowing virtual objects to interact with physical ones. The global VR/AR market is projected to exceed $450 billion by 2030.