On Thursday when I went to pick up my granddaughter from the Learning Center she is attending for the summer there was one of the kids balancing with arms outstretched on a skateboard without wheels and with one of those virtual reality visors on his head. He appeared to be having a blast – completely oblivious to my presence or that of others in the room. The teacher told me it was a virtual reality snowboarding game.

• This game simulates the real experience and lets you see and feel what you would experience if you were actually boarding down a snowy mountain side.

• Some of those games are so realistic now it is hard to distinguish the simulated from the true reality.