excerpt from a BBC interview with J.G. Ballard:
"Virtual reality is something slightly different. I mean I take for granted that eventually virtual reality systems will be available to us which create a simulated reality that is more convincing than that which our central nervous systems create. I mean one must remember the brain is itself a virtual reality machine, the illusion we have of the real world, of factories and streets and office blocks and other people talking to us is itself a virtual reality simulation generated by our brains.
I think when the first true virtual reality systems become available, and contain more visual information and are more visually convincing than ordinary reality, the temptation for the human race will be to enter this virtual reality system and close the door behind it. I mean, I think there's a danger there because one will really be able to enter into a fantasy world which, unlike all fantasies in the past, would be more convincing than everyday reality."