Imagine an optical device with a sensory field of 8 meters to 60 centimeters. Fixed to the wall, this mirror is programmed to constantly measure and react to your distance from it.
At 8 meters it will be convex, at 60 centimeters it will be concave and, using a co-efficient of average distortion in centimeters, it will assume, in function of the distance parameters that you generate, intermediary positions from one extreme to another passing (of course) through the plane position. Thus, all of the shapes reflected on the device, that is, your reflection and the reflection of the space in which you are, will begin to distort proportionately. You and the physical space around you, reflected in this Mirror, will pass through dynamic spherical distortions, that increase or decrease, in function of your distance from it.