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All These Balls Are the Same Color?!

optical illusion where several balls that appear to be the same color actually aren't

Oh dear, this illusion just totally broke my brain. No can write now. Somehow all same ball colors. What world? What earth? Why live? (Even after reading and seeing the explanation, I had to drag this into my photo editing app to verify it with my own eyes. True true. Oh, humanity.) (via @flyosity)