Thinking About Virtual Worlds

Even a simple mirror can create a virtual world.  I remember when we experimented with data immersion using VR in virtual worlds, it was remarkable to see how hard navigation was.  To the point that you often had to go back to the expected flat world to make sense of it.   This article hints at why.

The Physics of a Mirror Creates a Virtual World in Wired.
Human eyes are sort of dumb—but you can trick them into being smart ... "