Artificial Intelligence: Not If But When. Plus Other Ways Your World Is About To Warp

It was a thing in the '90s. You put on this giant space helmet and it allowed you to enter a world of brightly-coloured polygons -- it was a bit like being Max Headroom. It rightly fizzled, but now it's back with a vengeance. There were no fewer than 40 different Virtual Reality seminars over the course of this year's SXSW Interactive festival, which saw tech leaders revisiting some ideas of yesteryear, having another crack, and succeeding handsomely. It seems that everything old is new again.