Facebook has invested billions in social virtual reality so  this is for sure a space to watch. 

And we all know the rewards on offer if you crack the social space. 

MindMaze certainly thinks so. The first VR start-up to receive unicorn status, it has just brought out the MASK headset. 

Put it on and small electrodes in the headset pick up the minutest movement in your facial muscles and transcribe these instantly into appropriate emojis.

If it's nearly as good as the hype suggests it seems like a highly sophisticated lie detector on steroids. 

Could get quite interesting.