My virtual reality experiment: I was driving up a 6 lane superhighway early one August afternoon in clear bright sunlight at about 65 miles per hour in my clunky Toyota Corolla DX, with no other cars on the road. I decided to look intently at the little image in the car's rear view mirror -- no high tech apparatus. I really really really really intently focused all my attention on that little image! It was entirely convincing. That "little" image became my whole experienced reality: I was driving where I had been, not where the automobile was going. Fortunately I "snapped out of it" in time to avoid becoming a one car crash in the ditch on the right side of the road. (It was a very good place to have conducted this experiment, because there was a police barracks, a teaching hospital, and both Christian and Jewish cemeteries nearby, just in case.)

You may try to repeat my virtual reality experiment at your own risk; I strongly advise you against doing so. I assure you: It worked. (Of course it will not work if you don't "give in to it", just like a video game won't work if you just look at the pixels as what some computer programmer coded up with branching instructions depending on what inputs you enter.) Moral of this story: VIRTUAL REALITY CAN KILL YOU. Forewarned is forearmed.