Judged: two independent readers; copy check clear.
Necker cube
Necker cube The Necker cube is an ambiguous drawing of a cube that can be seen in two roughly equally likely three-dimensional ways.
The Necker cube is an ambiguous drawing of a cube that can be seen in two roughly equally likely three-dimensional ways. When people look at it, perception often flips suddenly and seemingly spontaneously from one interpretation to the other.