What if you climbed on to a treadmill and entered a virtual reality environment to walk in? That’s the experience a company named Infinadeck is trying create.

American engineer Destin Sandlin, the brain behind the YouTube video series Smarter Everyday, visited the Infinadeck team for a special preview of the world’s first such treadmill of this kind. The video above reveals his experience – and it was quite unusual, to put it mildly.

The machine is a treadmill made of trademills, with the main one moving in one direction and the smaller ones in another, at right angles to it. The outcome is that the walker can effectively “move” in virtual reality in any direction within a 360-degree arc.

It isn’t complete, but Sandlin, for one, believes it’s not far from completion either.