I D É E S   F O R T E S    Issue 3.01 - January 1997

Overlay the Day

By Tom Standage



Fully immersive virtual reality, the logical conclusion of today's ever more realistic games, is even more likely to turn its users into couch potatoes who would probably prefer it to real life. And what's wrong with escapism? Even old media like films and books are appeal-ing because of their ability to transport us - at least partially - to another world. But there is a way that would-be sofa tubers could have their cake and eat it. Rather than using VR to replace the real world, modified VR technology could be used to improve it.

A special headset could superimpose computer-generated imagery selectively to change parts of your field of vision. So instead of working in a dingy office, your headset could make it look as though you're on the beach. Children bored with their conventional Latin lessons could be taught in ancient Rome, by a toga-touting tutor. Sick of the sight of your other half? Replace him or her with your favourite film star. Does the house need redecorating? Change the paint colour whenever you like, and add an aquarium, windows with the view of your choice, or a TV screen that takes up a whole wall.

This isn't as far-fetched as it sounds. The technology needed is exactly the same as that required for full-immersion VR (real-time photorealistic graphics, head tracking, lasers that draw directly onto the retina, neural implants to simulate sensory stimulation).

With the ability to improve every aspect of our lives - if only in software - surely semi-immersion is the killer VR app. After all, who'd want to escape from the real world when you can escape from the real world and remain connected to it?

Tom Standage is deputy editor of The Daily Telegraph's technology supplement, "Connected".