Our eyes are easy to trick. In the presence of light we can perceive visually, in the absence of light we cannot.
An alternating presence and absence of light can be created using a stroboscope, something we usually associate with the disorienting environment of a club. In the presence of a strobe light, we only see individual moments of reality which are pieced together to a continuous motion in our minds, like in a stop-motion movie. We can use this effect to create incredible optical illusions. If we spin a sculpture, which has a special structure abiding the rules of the golden ratio around its own axis, and illuminate it with a strobe light, the illusion of a forever growing bloom can be created. [concept by John Edmark http://www.johnedmark.com]