Matthew Haney

This described my experience 100% When I try to answer your puzzle, I start to "visualize" the cube but it's more like a hazy, outline of a hologram that gets marginally more clear as I "focus" on certain part. I then split it into layers so I can approach it rationally. So if it's 2cm high then that means there's two layers, so I'll remember to multiply my answer I get on layer one by two. Then I split the top layer into two rows and by then it's rather obvious there's four cubes on this layer and therefore eight 1cm cubes in the 2cm cube. All that without ever having "seen" anything