If nothing else, HaptX is a great proof of the importance of taking haptics beyond the simple rumbling mechanisms available in most of today’s VR equipment. The glove can create brief moments where you really feel like you’re touching something that isn’t actually there.
For me this was clearest when doing something seemingly mundane: using my fingers to rotate a cube. I probably did so for a good five or ten minutes, using cubes of various sizes, because I wanted to understand why it felt convincing.