2019 was a mega year for both virtual and augmented reality, together, in the broad spectrum of extended reality (XR). For the past several years, VR has been a niche industry. Although big corporations like Facebook, Microsoft, HTC, and other firms have collectively pumped billions of dollars into developing the ecosystem via VR headsets and AR tools but developers haven’t seemed very interested in developing a robust ecosystem of VR/AR apps. The one exception is games of course, which seems to be this vertical’s area of market-strength. Most people’s first experiences of VR and AR today ar...