How long until we live online?

Is the technology depicted in new film Ready Player One – where people live, work and play in a parallel digital world – science fiction, or a taste of what’s to come?In Ernest Cline’s book, Ready Player One, it’s 2045 and “missing millions” have retreated into a virtual world called OASIS to escape from a reality consumed by climate change, economic depression and an energy crisis. And you thought Brexit was bad. But, in real life, how far away are we f