So I saw this post on Tumblr with this image and the caption "NO FENCESITTERS" with the obvious metaphor here being that looking at the same object from two different angles does not produce two equally valid truths because the yellow shadow is "true" because the truth is "round" and the shadow is round while the blue shadow is "false" because the shadow is square.
However, this is actually a very interesting metaphor for exactly a counter to the "no fence sitters with us or against us" mentality
Because NEITHER the blue shadow OR the yellow shadow are the truth. The yellow shadow might feel closer to the truth because the cylinder has a roundness to it, but it's still a two-dimensional representation which does not tell us the full picture. The yellow shadow does not tell us that the truth is a cylinder it looks more like an orb, which is FALSE.
In a ways this works as a call for nuance and depth. Even if the yellow shadow is closer to the truth it's still not the whole truth because the truth is three-dimensional. There is an entire dimension missing from the shadow. It's more complicated than circle or square. A cylinder is not a circle, even if it is closer to a circle than it is to a square. It's still different from an orb or a cube.
And speaking of cubes, from a certain angle the shadow cast by a cube is a hexagon. In fact, there's no reason for us to say that the hexagon shadow is false, except that we have cultural associations underlying these shapes telling us which orientation is "correct" or more representative. In a zero-g three dimensional space there is no reason for a cube sitting flat on one side to be any more valid than a cube resting on a corner.
The "the yellow shadow is true" framing is applying a cultural preconception to the cylinder, that the flat circular side is more important than the curved sides which, when viewed from the side and forced into two dimensions, appear square.
Cultural preconceptions are simplifying a three dimensional shape into a two dimensional shape, losing nuance and complexity and, in that process, losing the true full shape casting the shadow.
So you say "NO FENCESITTERS THERE ARE ONLY TWO SIDES WITH US OR AGAINST US" is wrong!! The truth is not in the middle but rather it is in the third dimension, it is in the depth and complexity that is being discarded by the two dimensional shadows. A cylinder is not a circle or a square. It is a three dimensional shape. It is a cylinder. THAT is the truth.