Back in the day, the future made many promises, flying cars, life on Mars, candies that have a full-course meal range of flavours. Bu

t if there’s one that tops them all, one quintessential futuristic device that the future promised, it’s holograms. Yes, those lovable three dimensional projected images made popular by Obi-Wan. And although flying cars are currently exceptionally dangerous (and with insurance rates on vehicles on the ground, I can’t imagine what it will cost to insure a hurtling mass of metal that careens through the skies) and Mars remains elusive to all save Hollywood, at ...