Wagner James Au / New World Notes

If I'm describing this video accurately, it's mind-boggling: VRChat YouTuber Mitama Sakumaru (known as "390_JUGGLER" in VRC) is juggling in real life — but the objects he's juggling only exist in VRChat. 

Yes: The juggled objects in VRChat are physics-enabled and respond to his real life juggling movement via the motion tracking of his VR rig, he tells me.

In a tweet, he reports that juggling virtual objects with no mass is harder than it might seem: "The weight and lack of finger sensation are quite severe, and it is about three times more difficult to do with normal gravity! " 

It's part of his effort, Mitama tells me, to create a new kind of virtual performance, where "the border between props and bodies are more ambiguous":

"I love VR and juggling," he explains. "In virtual reality, I can make anything… That break my fetters of imagination. I don't have to think about limits of the real world."

Hat tip: Patchouli, and much thanks to Sanny for the Japanese translation help!