“I am interested in the tension that exists between the visibility of artifice and the generated illusion. When the artificial assumes the status of the believable, one experiences a projection into the imaginary.” (Holly King)
I like illusions.
Also optical illusions, like the one you have here.
If you look for a moment you will discover that you have the feeling that the dark parts and the lighter parts are on two different pieces and crossing each other. You will perhaps also not be able to say which part is over the other. To solve the mystery: dark and light are on the same part of steel and none is over the other, nor are they crossing somewhere. It’s all a shadowgame.