what the middle just looks like its sloped down I dont see how this is impossible... even a 2 sided 3d shape is possible!
PS: your asuming all sides are flat, if you have a few sides curve in wierd directions and carefully position loighting then it can be made,
This shape it 100% possible, for 2 reasons: A- I got a freind to due it on blender using only lighs, cubes and triangles... he did it, it stuck him slightly under an hour, but he did it. B- You madeit. You cann't make somthing if its impossible, so if ya made it then it aint impossible.
I used reference off the Internet in case anyone was wondering.
This is his only save. I agree GH1, very suspicious
Or more like square with impossible line going through it
HOWWWWWWWWW(*brain melts out of ear*
More like impossible shading
That Means Its Twice As Trippy !!!