The idea of immersing ourselves in fictional worlds through VR has gripped the imagination of artists, scientists and writers for as long as we have been able to conceive of such things. But it may be that augmented or mixed realities – those that blur the line between what is real and what is not – will have an even greater impact on the way we live and work.

However, like virtual reality, augmented reality (AR) has not yet had its breakthrough moment. Combining real and virtual content in a believable way still presents considerable challenges – some that are shared with VR, and others that are unique to AR.