This is a very interesting video showing off a new omnidirectional treadmill which allows you actually take steps and walk around in virtual reality experiences! Apparently, this treadmill actually appears in the movie Ready Player One. According to the description in the YouTube video from Adam Savage’s Tested channel:
We step onto the Infinadeck, the omnidirectional treadmill seen in the movie Ready Player One. This treadmill lets you walk freely in virtual reality, in any direction. We learn about how it works and give our impressions on the state of the technology today
They actually talk about using this 500-lb. rig for fitness applications and firefighter training. Very cool—and probably also very expensive! (No price for this product has been announced yet.)
It would be so cool to be able to walk around inside Sansar experiences or High Fidelity domains, though!