Below are a series of Optical Illusions that discredit the eyes.
A and B are the same shade of gray—ALWAYS. Print It!
The two doughnut halves are the same shade of gray—ALWAYS! Notice how it
looks like the right-hand doughnut gets darker, when it sinks.
Don't believe me? Cover up the side that doesn't move.
Those little diamonds are all solid white—ALWAYS. Your eyes are adding the dancing dark!
All those lines are strait, and perfectly horizontal!
Check them with a ruler!