what about a spherical globe made of touch screen glass video monitors displaying inside out video streams, and it has just the double size of one's height, as to make a displayed horizon within the sphere where someone is inside, without glasses. it can react to steps and jumps, or even "create gravity illusions" with some hydraulic pistons, creating the ultimate immersive experience ever. Then would be relevant to have minority report's UI inside a sphere like this one i just proposed. :)