According to Tate.org one of the main goals for a Cubist painter is to “…emphasized the two-dimensional flatness of the canvas instead of creating the illusion of depth.” They also mention that Cubist played around with multiple perspectives by layering images over one another. However, if you removed the cube-like layering and just focus on the idea of flattening a 3D image into only the 2D I gather this is what it would be like to see through the lens of Stereoblindness.