What in you determines what you see?
Necker cubes

For example, do these cubes coming out or going into the picture? These so called “Necker Cubes” may be an optical illusion for your mind. In your awareness, the two-dimensional drawing of cubes may flicker between protruding from and intruding into the page. Why is this? What is happening with our awareness? What does this have to do with quantum waves? Arny’s new book will discuss this problem in detail and connect it with physics.