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The In or Out Optical Illusion is a pretty cool picture, as you stare at this column look carefully at the top. Does it appear to be a hollow shaft going down the length of the column? Do you see a small pyramid above the column? It all in the lighting my friends, congrats to who ever took this great shot. So what do you think In or out?
It’s definitely out. You can look at the shadow on the ground to see where the sun is. Only convex makes sense since the lit part is against the sun if it’s concave.
It is a pyramid on top of the post. You can tell by the shadow in the top corner of the post does not line up with “the supposed inside shadow”. Plus the top 2 sides “walls” are not even. They get thicker from the outer corners to the top corner. If you look closely you can see the back 2 sides of the pyramid (they are facing the sun/light source) and even a little of the line dividing the back two sides.
Ok, no one has said anything yet, so I’ll take this one. Common sense tells me that the architecture would be convex (out) so that water and other junk wouldn’t build up within the structure. It’s a good picture, though.